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Digi One
® and PortServer
®
TS Family
User’s Guide
Digi One Family Products
PortServer TS Family Products
PortServer TS Family (RS-232 only) Products:
PortServer TS 1/2/4 Family Products
PortServer TS 8/16 Family Products
PortServer TS MEI Products
And accessory products:
Digi Remote Power Manager (Digi RPM)
90000583_P
2014Digi International Inc.
Digi, Digi International, the Digi logo, Digi One, Digi Connect, PortServer TS, and RealPort are trademarks or registered trademarks of Digi International Inc. in the United States and other countries worldwide. All other trademarks are the property of their respective owners.
Contents
C o n t e n t s
Additional product information ...............................................................9
Command Reference ................................................................................ 9
Online Help for the Web Interface ............................................................. 9
Digi Contact Information ......................................................................10
Chapter 1 Introduction ........................................................................11
Devices in the Digi One and PortServer TS Family.............................11
Device Setup Process Overview .........................................................13
Step 1: Deployment Considerations ........................................................ 13
Step 2: Set Up Hardware......................................................................... 13
Step 3: Download Digi Device Discovery Utility....................................... 13
Step 4: Configure an IP Address ............................................................. 13
Step 6: Configure Other Features as Required ....................................... 14
Methods for configuring Digi devices...................................................15
From an attached terminal....................................................................... 15
Downloading a configuration file.............................................................. 15
Quick reference for configuring features .............................................16
Chapter 2 Configure the IP Address ..................................................23
Options for Configuring the IP Address and Mask ..............................23
Configure the IP Address Using ARP-Ping .........................................23
Configure an IP Address Using DHCP and RARP ..............................24
About DHCP and RARP .......................................................................... 24
DHCP Option 81 FQDN (Fully Qualified Domain Name)......................... 24
Access the Digi Device........................................................................25
Chapter 3 Configure Network and Serial Ports.................................27
Advanced Network Settings .................................................................... 31
Configure Serial Ports .........................................................................32
3
4
Console Management Port Profile........................................................... 36
TCP Sockets Port Profile......................................................................... 38
UDP Sockets Port Profile ........................................................................ 39
Industrial Automation Port Profile ............................................................ 45
Configure Industrial Automation with Modbus ......................................... 48
Modem Emulation Port Profile................................................................. 51
Internal Modem Port Profile..................................................................... 53
Power Management Port Profile.............................................................. 54
User Configuration...............................................................................56
Common User Features .......................................................................... 56
Configure User Access Method............................................................... 58
Change or Update User Passwords ........................................................ 58
Security Configuration .........................................................................59
Enable/Disable Access to Network Services ........................................... 59
Configure Security Settings ..................................................................... 60
System Configuration ..........................................................................61
Configure SNMP Settings........................................................................ 67
Autoconnection....................................................................................69
Configure a Port for Autoconnection ....................................................... 69
Configure a User for Autoconnection ...................................................... 69
Chapter 4 Configure Industrial Automation (IA) ...............................71
Industrial Automation Configuration Wizard ........................................72
Industrial Automation Configuration Profiles .......................................72
Industrial Automation Configuration Procedures .................................72
Serial Bridge Profile: Master and Slave Connected to Digi Ports........73
Setup Information: Slave Side ................................................................. 73
Setup Information: Master Side ............................................................... 73
Modbus Profile: Serial-Connected Slave.............................................74
Modbus Profile: Serial-Connected Master...........................................75
Contents
Contents
DF1 Profile: Serial-Connected Slave...................................................76
DF1 Profile: Serial-Connected Master.................................................77
Omron Family Profile: Serial-Connected Slave ...................................78
Omron Family Profile: Serial-Connected Master .................................79
Other Serial Port Protocol Profile: Serial-Connected Slave.................80
Other Serial Port Protocol Profile: Serial-Connected Master...............81
Configure a Serial-Connected Slave: Generic Procedure ...................82
Configure a Serial-Connected Master: Generic Procedure .................82
Configure a Serial-Connected Master: TCP/UDP Sockets..................83
Configure a Serial-Connected Slave: Other IA Protocol......................83
Configure a Serial-Connected Master: Other IA Protocol....................84
Set Up COM Port Redirection .............................................................85
Setup Tasks: an Overview....................................................................... 85
Configure the Serial Port for RealPort ..................................................... 86
RealPort: Determining Whether to Install RealPort .............................87
Chapter 5 Configure MEI Settings......................................................89
About MEI Settings..............................................................................89
5
6
Configure MEI Switches ......................................................................89
Set the Supported Baud Rate for Multi-Drop Support ............................. 90
Four-Wire Multi-Drop Network Scenarios............................................90
MEI Configuration for a Single Master..................................................... 90
MEI Configuration for a Slave.................................................................. 90
Chapter 6 Configure Embedded Modem ...........................................93
About Embedded Modem Products.....................................................93
Connect Hardware...............................................................................93
Configure Device Settings ...................................................................94
Chapter 7 Configure Power Over Serial Ports ..................................95
Serial Power Feature...........................................................................95
Configure Ring Indicator (RI) Power....................................................96
Configure DTR Power .........................................................................97
Serial Power Table ..............................................................................98
Chapter 8 Digi Remote Power Manager (Digi RPM)..........................99
Configuration Scenarios Using Digi RPM..........................................100
Non-Serial Device Connected to Digi RPM ........................................... 100
Serial Device Managed by PortServer TS but Powered by Digi RPM... 101
Digi RPM Configurable from Web Interface or Command Line.........101
Process for Configuring and Managing Digi RPM .............................102
Connect Digi RPM to PortServer TS Device and Power Up .............102
Configure Digi RPM Settings.............................................................102
Configure Outlets...............................................................................105
Manage Power Devices and Power Controllers ................................107
Manage Power Devices......................................................................... 107
Manage Power Controllers .................................................................... 108
Chapter 9 Configure SNMP ...............................................................111
About SNMP and the Digi Device Agent ...........................................111
SNMP Version Support ......................................................................... 111
Network Management Components ...................................................... 111
SNMP Management Agent.................................................................... 111
Configuring SNMP from the Web Interface .......................................113
Chapter 10 Latency Tuning.................................................................115
What Is Latency?...............................................................................115
Contents
Contents
Recommended Process for Latency Tuning .....................................115
Step 1: Determine the Characteristics of Your Application.................... 116
Step 2: Determine Latency Budget and Type of Latency ...................... 116
Step 3: Optimize the Physical Layer...................................................... 116
Step 4: Optimize the Network and Transport Layers............................. 117
Step 5: Optimize the Application Layer ................................................. 118
Chapter 11 Configuration Management.............................................119
Upgrade Firmware using TFTP .........................................................119
Backup/Restore Device Configuration Settings.................................120
Backup Device Configuration Settings to a File .................................... 120
Restore Device Configuration Settings from a File................................ 120
Backup/Restore to and from a TFTP Server ......................................... 121
Reset Device Configuration to Factory Defaults................................122
Chapter 12 Specifications, Certifications, and
Power Requirements ............................................................................. 125
Physical Requirements.......................................................................... 127
Digi One IA DB9 and Screw Terminal Pinouts ...................................... 128
PortServer TS 1 M MEI and PortServer TS 3 M MEI ............................ 128
Radio Frequency Interference (RFI) (FCC 15.105) ............................... 129
Labeling Requirements (FCC 15.19)..................................................... 129
Modifications (FCC 15.21)..................................................................... 129
Declaration of Conformity ...................................................................... 131
European Compliance ........................................................................... 132
Safety Statements .............................................................................133
PortServer TS 8/16 Safety Statements ................................................. 133
Rack Mounting Installation (PortServer TS 16 Rack and DC Rack) Safety
PortServer TS 1/3 M MEI Safety Statements ........................................ 134
Class I Division 2, Groups A,B,C,D Hazardous Location ...................... 135
Regulatory Notices ............................................................................136
Troubleshooting.................................................................................137
LEDs for PortServer TS 1/2/4-Port and Digi One Family Products ....... 137
LEDs for PortServer TS 8/16 Products.................................................. 138
Device EIA 232/422/485 Switch Settings .............................................. 139
7
8 Contents
Purpose
A b o u t T h i s G u i d e
Purpose
This user guide provides the following:
• Configuration and administration procedures
• Configuration examples
Audience
This guide is intended for the person responsible for configuring and administering the Digi device. It assumes that this person has experience configuring network devices and is familiar with networking concepts.
Scope
This guide provides step-by-step instructions for configuring and administering your Digi device’s main features. It focuses on performing these tasks through the web interface. It does not address how to configure every option, provide complete information on commands, or discuss hardware installation. These topics are covered in other documents in the
Digi library.
Additional product information
Several other documents provide information for Digi One and PortServer products.
Quick Start Guide
The guide that comes in the package with the Digi device covering the first steps necessary to get your device up and running. UNIX mounting instructions can be found on the Quick Start Guide.
Command Reference
This online manual provides complete information on commands.
Online Help for the Web Interface
This context-sensitive online help in the web interface provides information on configuration fields used with web browser configuration interface.
Chapter 1 9
Digi Contact Information
Digi Contact Information
To contact Digi International for more information about your Digi products, or for customer service and technical support, use the following contact information:
To contact Digi International by
World Wide Web: email
Telephone (U.S.)
Telephone (other locations)
Use
Digi International
11001 Bren Road East
Minnetonka, MN 55343
U.S.A.
http://www.digi.com/support/ http://www.digi.com/support/
(952) 912-3444 or (877) 912-3444
+1 (952) 912-3444 or (877) 912-3444
10 Chapter 1
Devices in the Digi One and PortServer TS Family
Chapter 1
I n t r o d u c t i o n
This chapter introduces the Digi One and PortServer TS Family and the process for setting up and configuring devices in the product family.
Devices in the Digi One and PortServer TS Family
This manual uses “the Digi One and PortServer TS Family” to refer to all devices in the family, and family names to refer to a group of devices. For example, the command summaries in this chapter and the device-support information for each command description. Devices and family names included in the Digi One and PortServer TS Family are:
Digi One Family
The Digi One Family of devices includes:
• Digi One SP
• Digi One SP IA
• Digi One IA
• Digi One IAP
• Digi One IAP Haz
PortServer TS Family
The term “PortServer TS Family” refers to all PortServer TS devices.
Within this family are two major groups of devices with different firmware:
• PortServer TS Family (RS-232 only) devices
• PortServer TS MEI devices
PortServer TS Family (RS-232 Only) Devices
The term “PortServer TS Family (RS-232 only) devices” refers to these device families:
PortServer TS Family
• PortServer TS 1, formerly known as Digi One RealPort
• PortServer TS 2
• PortServer TS 4
PortServer TS 8/16 Family:
• PortServer TS 8
• PortServer TS 8 DC
• PortServer TS 16
• PortServer TS 16 Rack
• PortServer TS 16 Rack DC
• PortServer TS 16 Enterprise
Chapter 1 Introduction 11
Devices in the Digi One and PortServer TS Family
PortServer TS MEI Devices
The term “PortServer TS MEI devices” refers to these device families:
PortServer TS MEI Family
• PortServer TS 1 MEI, formerly known as Digi One TS
• PortServer TS 2 MEI
• PortServer TS 4 MEI
PortServer TS H MEI Hardened Family
• PortServer TS 1 H MEI
• PortServer TS 2 H MEI
• PortServer TS 4 H MEI
• PortServer TS 1 H cc
MEI
• PortServer TS 2 H cc
MEI
• PortServer TS 4 H cc
MEI
• PortServer TS 1 Haz MEI
• PortServer TS 2 Haz MEI
• PortServer TS 4 Haz MEI
PortServer TS M MEI Modem Family
• PortServer TS 1 M MEI
• PortServer TS 3 M MEI
PortServer TS P MEI Power Family
• PortServer TS 1 P MEI
• PortServer TS 2 P MEI
• PortServer TS 4 P MEI
PortServer TS 8/16 MEI Family
• PortServer TS 8 MEI
• PortServer TS 16 MEI
12 Chapter 1 Introduction
Device Setup Process Overview
Device Setup Process Overview
The following is an overview of the process for setting up your Digi device.
The rest of this guide provides details on each step of the process.
Step 1: Deployment Considerations
Before beginning setup, consider the following:
• How to assign an IP address to the Digi device’s Ethernet interface,
which can be accomplished in a number of ways. See "Configure the IP
• The various ways in which your Digi device can be configured. See
"Methods for configuring Digi devices" on page 15 for more information.
A key consideration is whether to use RealPort. Other considerations include the type of peripheral that will connect to the port and the
documentation and Cable Guide, both of which are available on the Digi website, www.digi.com
.
Step 2: Set Up Hardware
1. Mount brackets to side of device for rack mounting.
2. Adhere the rubber feet to the bottom of the device for desktop.
3. Connect the device to the network.
4. Connect peripherals to serial ports.
5. Connect the device to the network.
6. Connect the power supply to the Digi device.
Step 3: Download Digi Device Discovery Utility
The Digi Device Discovery Utility is a tool to help you discover Digi devices on your network. From this utility’s interface, you can configure basic network settings and launch the configuration and management web interface for your device. The Digi Device Discovery Utility is available for download from the Digi Support website.
The general download for the utility is in this location: http://ftp1.digi.com/support/utilities/40002256_H.exe
If the attempt to access this general download fails, from the Support site, choose your product name, choose the Diagnostics, Utilities, and MIBs path. For the Operating System selection, select Microsoft Windows XP.
Step 4: Configure an IP Address
Chapter 1 Introduction 13
Device Setup Process Overview
Step 5: Configure Ports
See the following for more information:
•
"Configure Network and Serial Ports" on page 27
•
"Configure Industrial Automation (IA)" on page 71
Step 6: Configure Other Features as Required
See the following for information on setting up other features:
•
"Security Configuration" on page 59
•
•
14 Chapter 1 Introduction
Methods for configuring Digi devices
Methods for configuring Digi devices
Use this section to learn about the different methods for configuring Digi devices.
From an attached terminal
With this method, you cable a terminal or PC running terminal emulation software to a device server port and then use the command line to enter commands. This method allows you to configure all features. It requires, however, that you and the device server be in the same location. Some users find it advantageous to configure the device server IP address this way and then use one of the other methods for the rest of the configuration.
Important: You cannot configure the Digi device from an attached terminal if you are using SP and DOIA. The device type has changed from terminal to printer, which no longer allows access through the serial port when SP and DOIA are set to factory defaults.
From a Telnet session
With this method, you Telnet to the device server and use the command line to complete configuration tasks. The only disadvantage to this method is that you have to configure the device server with an IP address before you can Telnet to it.
From the Web interface
The great advantage to this method is ease of use. This method requires that you configure the IP address before you can access the configuration from the web interface, however, some features cannot be configured this way.
To access the configuration from the web interface, follow these steps.
This procedure assumes that you have configured the Digi device with an
IP address already. See "Configure the IP Address" on page 23.
1. Access the Digi device from a web browser by specifying the device server’s IP address in the URL window.
2. Log on with the username root. The default password is dbps.
Downloading a configuration file
With this method, you configure a Digi device and then do the following:
1. Download an existing configuration file to a host system.
2. Edit the file with specific configuration using a text editor.
3. Upload the file to the device server.
This an excellent method for maintaining highly similar configuration files for multiple Digi devices. The disadvantage is that the device server requires some configuration steps, such as the IP address, to be completed before it can be used.
Chapter 1 Introduction 15
Quick reference for configuring features
Quick reference for configuring features
This table is a quick reference for configuring features and performing device tasks, the Digi devices in which the features are supported, and where to find them in the web interface.
Some features are configurable from the command-line interface only. In those cases, the commands that configure the feature are noted. The command descriptions are in the Digi One and PortServer TS Family
Command Reference.
16 Chapter 1 Introduction
Quick reference for configuring features
Chapter 1 Introduction 17
Quick reference for configuring features
Feature/Task
Digi Devices supported in
Autoconnection All
Configuration management:
• Backup/restore
Configuration
• Upgrade firmware
• Copy configuration to and from a remote host
• Reset configuration to defaults
Domain Name Server (DNS)
Embedded Modem
All
All
All
All
IP routing
All
PortServer TS M MEI
Family
Industrial Automation (IA):
• Protocol conversion between Modbus, Allen-
Bradley, and ASCII device
• Allen-Bradley Ethernet-to-
Serial Bridging
Digi One IAP
Digi One IAP Haz
Digi One IAP
Digi One IAP Haz
• Omron Hostlink Multi-Master Digi One IAP
Digi One IAP Haz
• Modbus Ethernet-to-Serial
Bridging
Digi One IA
Digi One IAP
Digi One IAP Haz
PortServer TS Family
• Custom (user-defined)
Multi-Master Protocol
Digi One IAP
Digi One IAP Haz
PortServer TS Family
All
MEI
Modem emulation
Web interface path
Configuration > Serial Ports > port >
Port Profile > TCP Sockets
Administration > Backup/Restore
Administration > Update Firmware
Administration > Backup/Restore > TFTP
Server
Administration > Factory Defaults
System > System Name
Configuration > Serial Ports > port >
Port Profile > Internal Modem Profile
Applications > Industrial Automation >
“launch Industrial Automation Wizard”
Running the Industrial Automation Wizard is the recommended method for initial configuration of any IA equipment.
See the online help for the Wizard and this web page: http://www.digi.com/applications/ industrialautomation/index.jsp
.
PortServer TS 8/16 MEI
Family
Digi One SP
Digi One IA
PortServer TS Family
Configurable from command line only.
The commands to configure IP routing are
set route and set forwarding.
Configuration > System > MEI
(only maximum baud rate is configurable)
Configuration > Serial Ports > port >
MEI Serial Settings
Configuration > Serial Ports > port >
Port Profile > Modem Emulation
See the Digi One and PortServer TS Family
Command Reference for modem emulation commands.
18 Chapter 1 Introduction
Quick reference for configuring features
Feature/Task
Digi Devices supported in
PortServer TS Family
Web interface path
Port buffering
Port logging
• Power Over Ethernet (POE)
• Power Over Ports/Power
Over Serial
Digi One IAP
Digi One IAP Haz
PortServer TS Family
Port profiles
Port sharing: allowing more than one client to open a serial port through RealPort, reverse
Telnet, reverse SSH, or connect.
All devices that support the default web interface
All PortServer TS Family products.
All Digi One products
except Digi One IAP.
The console menu feature and the Console
Management port profile are available on
PortServer TS Family devices only.
When used with RealPort, port sharing feature is formally tested with the
Windows RealPort driver only, and not with Unix/
Linux driver versions.
Power Features:
• Power through Integrated
Remote Power Management
(Digi RPM)
PortServer TS Family
Digi One IAP
PortServer TS P MEI
Family
PortServer TS P MEI
Family
To enable port buffering:
Configuration > Serial Ports > port >
Console Management Profile
or
Configuration > Serial Ports > port >
Advanced Serial Settings
To display contents of a port buffer:
Management > Serial Ports > Port Logs
Configuration > Serial Ports > port >
Advanced Serial Settings > Enable Port
Logging
Note: for information on port logging mechanics and memory use, see the
set logport command description in the
Digi One and PortServer TS Family
Command Reference.
Configuration > Serial Ports > port >
Port Profile
By choosing the Console Management port profile for a serial port:
Configuration > Serial Ports > port >
Port Profile > Console Management
or
By the Advanced Serial Settings:
To configure port sharing:
Configuration > Serial Ports > port >
Advanced Serial Settings > Enable multiple systems to simultaneously connect
To configure Digi RPM:
Serial Ports > port > Port Profile > Power
Management
To manage Digi RPM:
Management > Power
This is a hardware feature. There are no configurable software settings for this feature.
This is a hardware feature. Enabling it involves changing a jumper inside the device.
To display the status of the circuit breaker and reset as needed, Administration >
Device Information > Serial Ports &
Diagnostics > port
Chapter 1 Introduction 19
Quick reference for configuring features
Feature/Task
PPP (Point-to-Point Protocol)
RealPort
Digi Devices supported in
PortServer TS Family
All
Remote login (rlogin) All
Revert configuration settings All
Web interface path
Applications > PPP
Configuration > Serial Ports > port >
Port Profile > RealPort Profile
See also the RealPort Setup Guides for details on configuring RealPort.
Users > user > User Settings > Access
Method
Users > user > Advanced Settings
For ports configured with the TCP Sockets port profile, the TCP Client settings:
Configuration > Serial Ports > port >
Port Profile > TCP Sockets > TCP Client
To revert all device settings, with the option to keep IP address settings:
Administration > Factory Default Settings
To revert serial port settings for a serial port, including port-specific security settings:
Configuration > Serial Ports > port >
Restore Factory Serial Port Settings
20 Chapter 1 Introduction
Feature/Task
Digi Devices supported in
Security, users, and access control features:
• Control user access to configuration settings
All
• Control user access methods, including user access to the command line, automatic user connections to the device, or use of custom menus
All
• Control user access to inbound and outbound ports
• Use CHAP authentication for
PPP users
All
All
Quick reference for configuring features
Web interface path
Configuration > Users > New User >
determine level of user access
Configuration > Users > user >
User Settings > Access Method
• Use RADIUS to authenticate users
• Issue user passwords
PortServer TS Family
All
• Configure SSH Version 2 for secure communication
Digi One IAP
Digi One IAP Haz
PortServer TS Family
• Configure a custom menu to be displayed to a user
PortServer TS Family
• Automatically connect a user All
• Delete a user definition All
• Set common user features
(user attributes)
• Use a RADIUS server to set user attributes
All
PortServer TS Family
Configuration > Users > user >
User Settings > Manage Serial Ports
Applications > PPP >
Incoming PPP Connection
and
Outgoing PPP Connection
Configuration > Security > RADIUS
Configuration > Users > user >
Require password to login
To enable SSH and Reverse SSH:
Configuration > Security > Network
Security
To use a public key: Configuration > Users
> user > Advanced Settings > Enable SSH
Public Key Authentication
To make reverse SSH connections to ports:
ssh base_port+ 500 + port_number
To create a custom menu:
Configuration > Users > Menus button >
New Menu button > Menu Settings
To associate a custom menu with a user:
Configuration > Users > user > User
Settings > Custom Menu & Menu Name
Configuration > Users > user >
Access Method > Automatically connect to a network service
Configuration > Users > user > Remove
Note that the root username cannot be deleted.
Configuration > Users > user >
User Settings
Configuration > Security > RADIUS
Chapter 1 Introduction 21
Quick reference for configuring features
Feature/Task
Digi Devices supported in
Web interface path
Simple Network Management
Protocol (SNMP)
TCP Socket Communication
All
Configuration > System > SNMP
Time-related features, including Simple Network Time
Protocol (SNTP) client configuration
UDP Socket Communication
Web interface, including idle timeout for
All
PortServer TS 8/16 Family
PortServer TS 8/16 MEI
Family
All
All devices that support the default web interface
Configuration > Serial Ports > port >
Port Profile > TCP Sockets
Configuration > System > Date/Time
Configuration > Serial Ports > port >
Port Profile > UDP Sockets
Configuration > System > Web Interface
22 Chapter 1 Introduction
Options for Configuring the IP Address and Mask
Chapter 2
C o n f i g u r e t h e I P A d d r e s s
The next step in configuring your Digi product is to configure an IP address and access the device for more advanced configurations. You must set the initial IP before you can use the web interface. Once the IP is set, the device can be accessed through the web interface and any changes made including changing the IP address.
Important: Before you configure your device server, write down the MAC
Address located on the bottom of your product. For Digi One IA and
Digi One SP products, the MAC address also serves as the serial number.
Options for Configuring the IP Address and Mask
The device server IP address can be configured using the following methods:
• From the command line, using the “set config” command. See the Digi
One and PortServer TS Family Command Reference for more details including syntax and supported devices.
• By updating the ARP table on a server and then pinging the Digi device
(called ARP-Ping, see "Configure the IP Address Using ARP-Ping" on page 23).
•
Using a DHCP server (see "Configure an IP Address Using DHCP and
•
Using a RARP server (see "Configure an IP Address Using DHCP and
The IP address and mask can also be changed using the web interface, but not for initial IP address configuration.
Configure the IP Address Using ARP-Ping
An IP address can be configured by manually updating a server’s ARP table and then pinging the Digi device.
The ARP-Ping command assigns the IP address you designate but also assigns default subnet mask and gateway addresses. It is necessary to change the subnet mask and gateway addresses.
This procedure assumes that your Digi device is connected to the Ethernet network.
1. Record the MAC address of the Digi device. The MAC address is on the label side (bottom) of the unit.
2. Access a server on the same subnet as the Digi device.
3. Manually update the server’s ARP table using the Digi device’s MAC address and the IP address you want assigned to the Digi device. The following is an example of how this is done on a Windows NT 4.0 system: arp -s 191.168.2.2 00-00-9d-22-23-60
Chapter 2 Configure the IP Address 23
Configure an IP Address Using DHCP and RARP
4. Ping the Digi device using the IP address just assigned. For example: ping 191.168.2.2
The ping will probably time out before there is a response from the Digi device.
5. Wait 30 seconds and then ping the Digi device again.
The Digi device replies to the ping, indicating that the IP address has been configured.
Configure an IP Address Using DHCP and RARP
About DHCP and RARP
When the device server boots, it transmits a DHCP request and a RARP request. This continues until an address is assigned.
DHCP Option 12
DHCP Option 81 FQDN (Fully Qualified Domain Name)
If the device is configured to use DHCP, and the FQDN option is enabled in the advanced settings menu, the device will send the combined host and domain name as a request to the DHCP server to assign the IP address associated with the host name.
Procedure
If the device is configured to use DHCP, the combined host and domain will be sent as a hint to the DHCP server when requesting an IP address. As a convention, some DHCP servers use this hint to assign the IP address associated with the host name.
To use RARP or DHCP, follow these steps:
1. Set up an entry for an address on a DHCP or RARP server. If you intend to use RealPort, do the following:
• Reserve a permanent IP address.
• Record the IP address. You will need it when you configure the
RealPort driver.
2. Power on the device server.
The DHCP or RARP server assigns the device server an IP address.
24 Chapter 2 Configure the IP Address
Access the Digi Device
Access the Digi Device
Once an IP address is set, you can access its configuration and management web interface from a web browser.
1. Enter the IP address in the URL bar of your browser.
2. Enter your username: root and password: dbps.
The Home page for the Digi device appears allowing you to configure the device for your specific needs. A tutorial is available to guide you in your decisions. The Help button in the upper right corner is also available.
From the web interface, you make any changes you need for your configuration.
Click Apply to save your changes, and Reboot when you are ready for the changes to take effect.
Chapter 2 Configure the IP Address 25
Access the Digi Device
26 Chapter 2 Configure the IP Address
Assumptions
C o n f i g u r e N e t w o r k a n d S e r i a l P o r t s
Chapter 3
The next step in the device setup process is to configure the network and serial port settings, using the web interface for your Digi product.
Assumptions
To access the web interface, an IP address must be assigned to your Digi
product, as described in Chapter 2, "Configure the IP Address". This
chapter assumes that you have logged onto the web interface using the username, root, and password, dbps, to make any changes or additional configuration assignments.
Network settings
1. Click Network to view the IP settings or make any changes to the IP address.
Chapter 3 Configure Network and Serial Ports 27
Network settings
2. Click DNS Settings.
• In the Name Servers fields, enter Primary, Secondary, and Teritiary
DNS servers. The DNS server maps names (example: MyDeviceName.mycompany.com) to IP addresses (example:192.105.1.2).
• In the Domain field, enter the domain name that this device will live in that is tied to the DNS server address assigned in step 2. This name can be used by other network devices to talk to it, instead of using the its IP address. Get this name from the network administrator, because it must be entered in the DNS server to work properly.
• In the Host Name field, enter a host name for a group of network devices.
28 Chapter 3 Configure Network and Serial Ports
Network settings
3. Click Advanced Network Settings.
4. Enter the Base Socket. The base socket determines the network port
(socket) on this Digi terminal server that another network device (such as another Digi terminal server or a PC) uses to communicate using the
Digi device’s serial port services. These services include Telnet, raw
TCP/UDP, and SSL.
Most applications can leave this value unchanged. To calculate these settings:
• Telnet port = Base Socket + Serial Port Number
• Raw port = Base Socket + 100 + Serial Port Number
• SSL port = Base Socket + 600 + Serial Port Number
For example:
Service
telnet raw (TCP or UDP)
SSL
Base socket
2000
2000
2000
Network port
2001
2101
2601
Chapter 3 Configure Network and Serial Ports 29
Network settings
30
5. Click Apply.
6. Click Reboot for changes to take effect.
Chapter 3 Configure Network and Serial Ports
Network settings
Advanced Network Settings
Warning: The default Advanced Network Setttings are appropriate for most environments. Apart from setting the base socket, described in the previous topic, it is recommended that you NOT alter the Advanced
Network Settings. Changing these settings could cause you to ‘lose’ your device on the Network. If you alter these network settings, you may need to reset your device with the reset button and reconfigure your device as if it
were new. See "Reset Device Configuration to Factory Defaults" on page
Chapter 3 Configure Network and Serial Ports 31
Configure Serial Ports
Configure Serial Ports
1. Under Configuration, click Serial Ports.
2. Click the port number that you want to configure.
3. Click Change Profile and select a profile based on the device you have connected to your port.
32 Chapter 3 Configure Network and Serial Ports
Configure Serial Ports
. If this is the first profile assigned or the unit has been restored to factory defaults, the Select Port Profile page is displayed. The following section shows the settings available for each profile.
The available port profiles depend on supported by your Digi device.
For example, if your Digi product does not support Power Management feature, a port profiles for that feature is not displayed. To verify whether
details about each profile.
Chapter 3 Configure Network and Serial Ports 33
Port Profiles
4. Click Apply to save the profile. The interface will determine any additional settings and port options page will come up and ask for
additional parameters if needed. See "Port Profiles" on page 34 or click
Help for additional information.
5. Enter the appropriate parameters and click Apply.
6. Click Reboot for changes to take effect.
Port Profiles
Each port profile determines the settings needed. Following are overviews of the port profiles and screen shots showing their settings. For more details about the port profile settings, click the Help link.
34 Chapter 3 Configure Network and Serial Ports
Port Profiles
RealPort Port Profile
The RealPort profile configures the serial port to interoperate with the
RealPort Driver hosted on a network-based PC. When RealPort is installed on a network-based PC, it emulates a serial port. That is, the application
“thinks” it is working with a real serial port, such as COM1. When the application sends data to this serial port, RealPort encapsulates the data and ships it across the network to the Digi device which in turn routes it to the serial device. This is also referred to as COM Port Redirection. The network is transparent to both the application and the device.
With RealPort, SSL encryption is supported in network port 1027. Standard
RealPort service is on network port 771. Both can be configured on the
Advanced Network Settings page. To use SSL encryption, you must have a
RealPort driver that supports SSL. For Unix and Linux, you can use one of these drivers: Linux, Solaris, AIX, SCO Openserver 5.x and 6, and HP-UX.
With Windows, you can use the Win2k/Xp/2003 driver online, which supports Encrypted RealPort (OpenSSL/TLS1.0 128-bit AES).
A simple challenge/response MD5 hash authentication is also supported by the Windows driver on fs1.
Chapter 3 Configure Network and Serial Ports 35
Port Profiles
Console Management Port Profile
Console Management involves accessing a device's console port over a network connection. Most network devices such as routers, switches, and servers offer serial port(s) for management. Instead of connecting a terminal to the console port, cable the console port to the serial port of your
Digi device. Then using Telnet features, network administrators can access these consoled serial ports from the LAN by addressing the appropriate
TCP port.
36 Chapter 3 Configure Network and Serial Ports
Port Profiles
Enabling Port Sharing
Under Console Management you can also enable port sharing. Port sharing allows multiple users to access the port at the same time. If port sharing is disabled, then only one user may access the port at a time. You may change the number of users at any time. If you increase the number of users from 2, the change takes effect immediately. If you decrease the number of users, the change does not take effect until the users log off. For example, if port sharing is available for 9 with 9 users on, then changed to
2, the change will not take effect until at least 2 users log off. If port sharing is enabled for 2 and then disabled, the change will not take effect until everyone is off. The default value when port sharing is disabled is one.
Device and Driver Support for the Port Sharing Feature
• The port sharing feature and the set sharing command are supported in the following products.
• All PortServer TS Family products.
• All Digi One products except Digi One IAP.
• The console menu feature and the Console Management port profile can be used to enable the port sharing feature. The console menu feature and Console Manager port profile are available on PortServer
TS Family devices only. To configure port sharing for all other devices, use the set sharing command.
• When used with RealPort, the port sharing feature is formally tested with the Windows RealPort driver only, and not with Unix/Linux driver versions.
Chapter 3 Configure Network and Serial Ports 37
Port Profiles
TCP Sockets Port Profile
The Digi device supports TCP socket communication. TCP socket communication enables serial devices to communicate with each other over an Ethernet network as though they were connected by a serial cable.
Configuring TCP socket communications involves configuring the Digi device for the following types of connections:
• Inbound connections, that is, connections that are initiated by the device on the other side of the network.
• Outbound connection, that is, connections that are initiated by the device connected to the serial port.
TCP Sockets profile is also the profile to use for Autoconnection. See
"Autoconnection" on page 69 for more information.
38 Chapter 3 Configure Network and Serial Ports
Port Profiles
UDP Sockets Port Profile
The Digi device is capable of UDP multicast. UDP multicast is used to send serial data over an Ethernet cable to one or many hosts at the same time.
UDP does not need a protocol because it sends data without any form of acknowledgment of error or error correction.
The number of devices that can receive a UDP multicast varies by product.
• PortServer TS 8/16 Family: up to 16 devices can receive a UDP multicast at one time.
• All other products, including the Digi One Family and
PortServer TS 1/2/4: up to 64 devices can receive a UDP multicast at one time.
Both the transmitting and receiving devices must be configured properly for
UDP multicast to work.
Configuring UDP multicast communications involves configuring the Digi device for the following types of connections:
• Inbound connections, that is, connections that are initiated by the device on the other side of the network.
• Outbound connections, that is, connections that are initiated by the device connected to the serial port.
The serial parameters for two connecting devices must match. That is, if one device is set for 9600 bps, the other device must be set for the same rate.
Chapter 3 Configure Network and Serial Ports 39
Port Profiles
40 Chapter 3 Configure Network and Serial Ports
Port Profiles
Serial Bridging Port Profile
The Digi device supports serial bridging (sometimes referred to as
‘tunneling’). A serial bridge is a network connection between two serial devices, each of which uses a device server. The serial devices “think” they are communicating with each other across a serial cable using serial communication techniques. There is no need to reconfigure the server or the serial device. Neither is aware of the intervening network.
This profile configures each side of the bridge separately. Repeat the configuration for the second Digi device using the web interface. Enter the
IP address in the URL bar of your browser and follow the same procedure of the bridge specifying the IP address of the first Digi device.
Chapter 3 Configure Network and Serial Ports 41
Port Profiles
Printer Port Profile
The Printer port profile allows you to connect a printer to a serial port. Use this profile if you intend to print using the LPD protocol on your UNIX system.
Refer to your UNIX User Guide for tips on configuring the print spooler on your UNIX system.
Using the LPD Protocol
Here are some tips for configuring the print spooler on your UNIX system when you intend to print using the LPD protocol to a printer attached to device server:
• The number of copies option with lpr is not supported.
• Banner pages are not supported.
• The device server’s DNS name or IP address is the remote system’s name.
• Queue names must conform to the following conventions:
• Begin the queue name with one of the following character strings:
(a) Use ASCII if you want device server to substitute carriage return and line feed characters for each line feed the system sends. (b)
Use raw if no substitution should be performed.
• After the queue name, insert an underscore character and the number of the device server port to which the printer is attached.
• If you want to use either of the following options, specify an additional underscore and then the letter that identifies the option: (a)
Use f to append a form feed character to the end of each file in a print job (b) Use d to add a Ctrl-d to the end of each file in a print job.
(This is often required by PostScript printers.)
42 Chapter 3 Configure Network and Serial Ports
Examples
Port Profiles
String
ascii_1 ascii_8_f raw_1_d
Result
Prints to port 1 and translates CR to CR/LF.
Prints to port 8, translates CR to CR/LF and prints a form feed at the end of the job.
Prints to port 1 with no translation and appends a Ctrl-d to the end of the print job.
Chapter 3 Configure Network and Serial Ports 43
Port Profiles
Terminal Port Profile
This profile allows you to connect a terminal to the serial port. It also allows you to automatically establish TCP connections, enabling the connection to a system or a device on the network when data arrives.
44 Chapter 3 Configure Network and Serial Ports
Port Profiles
Industrial Automation Port Profile
Important: Before using use the Industrial Automation port profile, consider using the IA Wizard instead. The IA Wizard is the recommended method for configuring your device for use with Industrial Automation applications. It guides you through common IA scenarios and configures your Digi device. To launch the IA Wizard from the web interface, under
Applications, select Industrial Automation, then click IA Wizard.
The Industrial Automation (IA) Profile allows you to connect IA devices and
PLCs (programmable logic controller) to the serial port in order to networkenable the devices. Use this profile if you need to communicate over the network with an IA device or PLC that only uses serial protocols. This profile may also be used to add routing capabilities to IA devices or PLCs that act as serial masters and send packets to various systems or devices on the network. Industrial Automation enhances the IA device or PLC connected to the serial port. Use the Help button for more assistance configuring this profile.
Chapter 3 Configure Network and Serial Ports 45
Port Profiles
46 Chapter 3 Configure Network and Serial Ports
Port Profiles
Chapter 3 Configure Network and Serial Ports 47
Port Profiles
Configure Industrial Automation with Modbus
1. Click Serial Port > Change profile and select Industrial Automation.
2. Click Apply.
3. Under Profile settings, click Change protocol -(Master or Slave).
4. Select the serial protocol that your device expects to communicate on.
The only option is User defined.The User Defined IA serial protocol is useful for devices or PLCs that do not use any of the predefined protocols and have a protocol that conforms to the following criteria: All message packets are bounded by fixed header and trailer strings Every protocol request is followed by a single response.
5. Use the Help button for additional information.
6. Click Apply.
Configure the serial port for the serial communication parameters (baud rate, data bits, parity and stop bits) required by the connected IA device. If you configure the port for a slave, you do not have to configure a networkbased master. Communication with the master simply works. However, if the master is connected to a serial port, it must be configured. If you configure a port for a master and the slaves are located on the network,
TCP sockets, UDP sockets, and Modbus/TCP are all supported. Use the protocol required by the master.
48 Chapter 3 Configure Network and Serial Ports
Port Profiles
Chat Mode Port Profile
This configuration allows multiple clients to simultaneously connect to or manage a server connected to the same serial port, similar to a chat room.
In chat mode, the serial device can be a slave or a master. Enabling the device as a server (slave) allows you to establish the end of line detection, the timeouts, and the disconnect conduct. Server settings establish the data echo direction. As a client (master) device, the same settings apply but you may also direct your communication to a specific port or other networked device.
Chapter 3 Configure Network and Serial Ports 49
Port Profiles
50 Chapter 3 Configure Network and Serial Ports
Port Profiles
Modem Port Profiles
There are 3 types of modem port profiles:
• Modem Emulation
• Modem
• Internal Modem
Modem Emulation Port Profile
The Modem Emulation port profile allows you to configure the serial port to
act as a modem. The Digi device emulates modem responses to a serial device and seamlessly sends and receives data over an Ethernet network instead of a PSTN (Public Switched Telephone Network). The advantage for a user is the ability to retain legacy software applications without modification and use a less expensive Ethernet network in place of public telephone lines.
For more details about modem emulation and descriptions of the commands that can be issued, see the chapter of the Digi One and
PortServer TS Family Command Reference titled “Modem Emulation
Commands.”
Chapter 3 Configure Network and Serial Ports 51
Port Profiles
Modem Port Profile
The Modem port profile configures the Digi device for attaching a modem to the serial port in order to establish or receive connections from other systems and modems.
If the attached modem uses PPP connections, select Enable PPP
Connections on this Modem and click the PPP Configuration link below the setting to set up incoming, outgoing or advanced PPP settings. See
"System Configuration" on page 61 for more information about PPP
settings.
52 Chapter 3 Configure Network and Serial Ports
Port Profiles
Internal Modem Port Profile
The Internal Modem port profile is used for the serial ports that contains the embedded modem. This profile allows you to configure the modem port.
This profile configures the internal modem for PPP connections.
Chapter 3 Configure Network and Serial Ports 53
Port Profiles
Power Management Port Profile
The Power Management port profile allows you to connect the serial port to a power controller, such as the Digi Remote Power Manager (Digi RPM).
The Digi device will monitor the power controller to provide the status and control of power outlets. This feature is used most commonly in a console management application, where the console port of a server is connected to one serial port of the Digi device for remote access, and the AC power plug of the server is connected to a power controller for AC power control.
Power controller settings can be automatically detected or configured manually. Power controller outlets are configured on the Controller
Outlets page, linked from the profile page. For more information on integrating the Digi RPM power controller with your Digi device, see
Chapter 8, "Digi Remote Power Manager (Digi RPM)".
54 Chapter 3 Configure Network and Serial Ports
Port Profiles
Custom Port Profile
The Custom port profile allows you to see all settings and set them accordingly. Use this profile only if your application does not fit into any of the predefined port profiles.
Chapter 3 Configure Network and Serial Ports 55
User Configuration
User Configuration
Although it is not required, the device server is often configured to accommodate the requirements of particular users. Typical configurable user attributes include:
• Whether the user is required to supply a password.
• Autoconnection attributes, such as the system to which the user should be automatically connected at login.
• The interface the device presents the user, such as a menu or command line.
• Whether the user has access to outbound ports.
Users select a user profile that most closely describes the user’s environment. User profiles include:
• Console Management - expected to connect to and manage serial devices that have a console port. Users can connect directly, use a custom menu interface, or reverse telnet or SSH into a serial port.
• Terminal/Terminal Emulation -using a terminal or terminal emulation program to connect to the serial port and needs to automatically connect to a device available on the network.
• Custom - using a terminal or terminal emulation program to connect to the serial port and needs to automatically connect to a device available on the network.
• With a RADIUS server. See the “set radius” command description in the
Digi One and PortServer TS Family Command Reference.
Common User Features
Feature
accesstime autoconnect
Default access type
Menu access
Port access
PPP
Routing updates
Description
Determines the times and days the user can access the device server.
This feature is not configurable from the web interface.
Automatically connects the user to the host specified on the autohost field using the service (TCP port) defined on the autoport or autoservice fields.
Autoconnection can also be implemented by port instead of by user.
Defines the type of access the user is restricted to. Menu, command line, autoconnect, and outgoing and netservice are the types.
Defines the menu that is to be presented to a user with menu access.
Defines the number of outbound ports a user connected over the
LAN can access at one time.
This feature is not configurable from the web interface.
Defines PPP-related parameters for the user. For more information
on configuring PPP users, see "PPP Settings" on page 62.
Defines whether RIP routing updates are forwarded over the link to this user.
56 Chapter 3 Configure Network and Serial Ports
Add a User
User Configuration
1. Click Users > New User.
2. The new user wizard is displayed. Enter the Username, password, and password confirmation, and click Enter.
3. Select a profile that fits the user’s environment and needs, and click
Next.
Chapter 3 Configure Network and Serial Ports 57
User Configuration
4. Select the Ports to manage or the Autoconnect function if needed and click Next.
5. Review settings and click Finish.
The Advanced tab under User allows you to set Escape characters for
Connect, Telnet, Rlogin, and Kill as well as an SSH Public Key.
6. Click Apply to save the settings.
7. Click Reboot for changes to take effect.
8. User attributes can be changed after the user is set up. Select
Users > username. From here you can change the password, the access method, the menu, or verify the user’s properties.
Configure User Access Method
1. Set up the user as described in the previous procedure.
2. Click Users > username to assign access and select the access method or methods.
3. Select the ports for the user and click Apply.
Change or Update User Passwords
On the Users page, you can also change or update the users password.
However, if the Admin password is lost, the only recovery is factory default
reset. See "Reset Device Configuration to Factory Defaults" on page 122.
58 Chapter 3 Configure Network and Serial Ports
Security Configuration
Security Configuration
Security settings allow the administrator to set passwords, security levels, and authentication via RADIUS server.
Enable/Disable Access to Network Services
Some network services, such as Telnet and Rlogin, can be disabled for inbound users. This means that the users cannot access the Digi device using those services. This feature allows you to turn off individual services or to specify a security level, which means that all services not included in that level are turned off. The following services can be turned off.
• SSH
• Reverse SSH
• HTTPS
• HTTP
• SNMP
• RealPort
• Secure RealPort
• Secure Sockets
• Telnet
• Remote Login (RLogin)
• Remote Shell (RSH)
• Reverse TCP
• Reverse Telnet
• Line Printer Daemon (LPD)
Chapter 3 Configure Network and Serial Ports 59
Security Configuration
Configure Security Settings
1. Click Security > and enter a new password for the root administrator username.
2. Enter the confirmation password and click Apply.
3. Click Network Security. Select the security level appropriate to your environment, and click Apply.
Secure Access Levels are defined as follows:
• Secure: SSH is the only service available to inbound users.
• High: SSH, HTTP, SNMP, and RealPort services are available to inbound users.
• Normal: all services are available.
• Custom, which means you can select services to turn off.
The default service level is Normal.
4. Click RADIUS and select Authenticate users via RADIUS server.
If you do not have RADIUS available, Click Apply and then Reboot.
5. Enter the Primary server’s IP address and Primary server’s secret, which is the password used for encryption of messages between the
RADIUS server and the Digi device. Click Apply.
6. Click Reboot for changes to take effect.
60 Chapter 3 Configure Network and Serial Ports
System Configuration
System Configuration
System settings allow you to set a system description, tune the performance optimizing throughput or latency, set the the date and time, configure SNMP traps, conifgure the idle timeout to close connected web interface clients after a specified idle time, and set baud rates for MEI.
1. Click System and enter the following:
• System Description: the SNMP Device Name assigned to the Digi device.
• Contact: the SNMP contact person -often the network administrator.
• Location: a text description of the physical location of the Digi device.
• Optimization: the bandwidth used on the network. Options here are:
Latency: Allows fast access to time-sensitive devices. Requires more network bandwidth.
Throughput: Allows better network performance at higher throughput.
Click Apply.
2. Click Date/Time. If your Digi device does not have Date/Time available,
Click Reboot.
3. Enter the date and time information and click Apply.
4. Click Reboot for changes to take effect.
Chapter 3 Configure Network and Serial Ports 61
System Configuration
PPP Settings
Under Applications > PPP , you can set the PPP (Point-to-Point Protocol) options to enable or disable the dynamic IP address pool. The dynamic IP address pool is a set of reserved IP addresses unique to the network that are assigned to the incoming connections. In the setup process, you set the IP address to use and the number of sequential addresses (plus one) to be reserved for assignment.
A wizard and online help are availble to help you configure PPP settings.
Configure Incoming PPP Connections
1. On the main menu, go to Applications > PPP. The main
Point-to-Point Protocol (PPP) page is displayed.
62 Chapter 3 Configure Network and Serial Ports
System Configuration
2. Click Basic PPP Settings.
• If you are using PPP, select Enable Dynamic IP Address Pool for
Incoming Connections.
• Enter the first reserved IP address of the incoming connections and the number of addresses to use and
• Click Apply.
Chapter 3 Configure Network and Serial Ports 63
System Configuration
3. Click Incoming PPP Connections > New Connection. Enter the appropriate parameters and click Apply.
64
4. Click Reboot for changes to take effect.
Chapter 3 Configure Network and Serial Ports
System Configuration
Configure Outgoing PPP Connections
For outgoing connections, CHAP or PAP authentication, or password configuration, use the following procedure.
1. On the main Point-to-Point Protocol (PPP) page, click
Outgoing Connections.
2. Click New Connection. The Outgoing PPP Connection settings page is displayed. Enter the appropriate parameters. Note that CHAP authentication can be used to restrict PPP user access to outbound ports. When done, click Apply.
3. Click Reboot for changes to take effect.
For dynamic routing or proxy ARP settings, follow the procedure for configuring advanced PPP settings, next.
Chapter 3 Configure Network and Serial Ports 65
System Configuration
Configure Advanced PPP Settings
1. On the main Point-to-Point Protocol (PPP) page, click Advanced
PPP settings.
• As needed, use the Help button above the settings for more information about configuring advanced PPP settings.
• Select Enable Dynamic Routing (RIPv1).
• Select the passive or active route setting.
• Select the Process ARP requests if appropriate.
• Click Apply.
66
2. Click Reboot for changes to take effect.
Chapter 3 Configure Network and Serial Ports
System Configuration
Configure SNMP Settings
1. On the main menu, click System > SNMP.
2. On the SNMP settings page:
• Select Enable SNMP.
• Enter the community (public or private).
• Select the type or types of traps you wish to enable.
• Click Apply.
Chapter 3 Configure Network and Serial Ports 67
System Configuration
Configure MEI Settings
MEI settings apply to EIA-422/485 Half-Duplex (2 wire) ports only. See
"Configure MEI Settings" on page 89 for details on MEI.
1. Select System > MEI.
2. Select the baud rate from the Maximum drop down box.
3. Click Apply for configuration to take effect.
68 Chapter 3 Configure Network and Serial Ports
Autoconnection
Autoconnection
The autoconnection feature allows you to configure a user to access the device server and then be automatically connected to a host on the LAN.
You can implement autoconnection in the following ways:
• By port, where all port users are automatically connected to the same host. The device server is completely transparent to them.
• By user, where a user is required to log on and may be required to supply a password. Once the user is authenticated, an automatic connection to a host is made.
Configure a Port for Autoconnection
1. Under Configuration, select Serial Ports.
2. Click the TCP Sockets Port Profile. Note that TCP Sockets is the port profile to use for Autoconnection.
3. Click Apply.
4. Select Automatically establish TCP connections and the appropriate parameters. Use the Help button for additional information.
5. Click Apply.
6. Click Reboot for changes to take effect.
Note: To return to the main Ports menu, choose Ports from the Menu again.
Configure a User for Autoconnection
1. Click Users from the menu.
2. Choose New User.
3. Enter a username and click Next.
4. Select the Terminal/Terminal Emulation user profile and click Next.
5. Select Automatically connect to a ...
Be sure to specify the following:
• Hostname or IP address that will be the destination
• Service (Telnet, Rlogin, raw TCP, or SSL)
• Destination TCP port number, which determines the type of connection for this user (such as 23 for Telnet)
6. Click Next and choose to verify the settings.
7. Click Finish to save settings.
Chapter 3 Configure Network and Serial Ports 69
Autoconnection
70 Chapter 3 Configure Network and Serial Ports
Chapter 4
Key Terms
C o n f i g u r e I n d u s t r i a l A u t o m a t i o n ( I A )
The Digi Industrial Automation (IA) capabilities enable Digi products to identify and intelligently manage communications using several common
Industrial Automation protocols. This chapter discusses using Digi products with Industrial Automation (IA) applications, including configurations that work for your for IA applications, and the configuration tasks required to use your Digi product in an IA environment. The content in this chapter assumes you are familiar with the basics of the industrial protocols you need to implement.
Key Terms
Industrial Automation involves several key terms:
Com Port Redirection
A method of redirecting the serial data generated by a PC-based master to a slave connected to a port on a network-based device server. In this scheme, the master “thinks” that it is communicating with a device connected to a serial port on the PC system when, in fact, the data is encapsulated in network packets and transported across the network to a device connected to a serial port on the Digi device server. Many applications, written to support serial communication only, require this service in order to communicate over the Ethernet.
IA
Abbreviation for industrial automation
master (or protocol master)
The host or IA device that initiates all communication with a protocol slave
multi-master
Any configuration in which more than one master simultaneously communicates with a slave
protocol request
A message generated by the master and sent to the slave that requests information or issues a command
protocol response
A message generated by the slave in response to a protocol request from the master
slave (or protocol slave)
The device that responds to requests from the master
TCP socket (or TCP socket service)
A type of network service that uses TCP to ensure reliability. When this manual discusses TCP sockets, it means that IA protocol messages are encapsulated in network packets and transported across the network using a standard network service. Many applications support connections to devices using TCP socket.
Chapter 4 Configure Industrial Automation (IA) 71
Industrial Automation Configuration Wizard
TCP tunnel
A TCP socket connection in which a master is connected to the serial port of one device server and a slave to the serial port of another Digi device.
UDP sockets (or UDP socket service)
Similar to TCP socket service (discussed above) except that the UDP protocol is used instead of TCP, which means that the reliability service
TCP performs is not provided. Advantages of UDP socket service are slightly less protocol overhead and support for multicasting. Some applications support connections to devices using TCP socket.
UDP tunnel
A UDP socket configuration in which a master is connected to the serial port of one device server and a slave to the serial port of another Digi device.
Industrial Automation Configuration Wizard
To help you configure your Digi product for use in an IA application, a configuration wizard and several configuration profiles, or scenarios, are provided. To launch the wizard from the web interface, go to
Applications > Industrial Automation and click the link in the text “For a guided installation, launch the Industrial Automation Wizard.”
Industrial Automation Configuration Profiles
This chapter discusses several common configuration profiles for industrial automation:
•
"Serial Bridge Profile: Master and Slave Connected to Digi Ports" on page 73
•
"Modbus Profile: Serial-Connected Slave" on page 74
•
"Modbus Profile: Serial-Connected Master" on page 75
•
"Omron Family Profile: Serial-Connected Slave" on page 78
•
"Omron Family Profile: Serial-Connected Master" on page 79
•
"Other Serial Port Protocol Profile: Serial-Connected Slave" on page 80
•
"Other Serial Port Protocol Profile: Serial-Connected Master" on page
Industrial Automation Configuration Procedures
This chapter presents procedures for configuring these common industrial automation configuration profiles:
•
"Configure a Serial-Connected Slave: Generic Procedure" on page 82
•
"Configure a Serial-Connected Master: Generic Procedure" on page 82
•
"Configure a Serial-Connected Master: TCP/UDP Sockets" on page 83
•
"Configure a Serial-Connected Slave: Other IA Protocol" on page 83
•
"Configure a Serial-Connected Master: Other IA Protocol" on page 84
•
"Set Up COM Port Redirection" on page 85
72 Chapter 4 Configure Industrial Automation (IA)
Serial Bridge Profile: Master and Slave Connected to Digi Ports
Serial Bridge Profile: Master and Slave Connected to Digi Ports
When to Use
Use this profile to connect a protocol master to the serial port of one device server and the protocol slave (or slaves) to the serial port of another device server. This profile, which is often called a serial bridge, is applicable to environments that use most IA serial port protocols and to multi-master environments as well. The network is completely transparent to the serial devices, which means they do not have to be reconfigured.
Configuration Options
The serial port connections must be configured to meet the requirements of the attached device, which can be Modbus ASCII, Modbus RTU, DF1 Full-
Duplex, DF1 Half-Duplex, Omron Hostlink, Omron FINS, and Omron
CompoWay/F. It can also be a serial port protocol that meets Digi’s definition of a “user defined” protocol, that is, one that has fixed header and trailer strings that bound all message packets and where each protocol request is followed by a single response.
For the network connection, Digi recommends TCP sockets, which works regardless of the serial port protocol specified and provides an efficient and reliable network service. Another option is UDP sockets, which also works with all the serial port protocols, although it lacks TCP socket reliability. For
Modbus devices, Modbus/TCP is an option, and for DF1 Full-Duplex devices, Allen Bradley Ethernet and Ethernet/IP are options.
Setup Information: Slave Side
See "Configure a Serial-Connected Slave: Generic Procedure" on page 82.
Setup Information: Master Side
To configure TCP socket or UDP socket communication, see "Configure a
Serial-Connected Master: TCP/UDP Sockets" on page 83. To configure
any of the other network communication protocols, see "Configure a Serial-
Connected Master: Generic Procedure" on page 82.
Chapter 4 Configure Industrial Automation (IA) 73
Modbus Profile: Serial-Connected Slave
Modbus Profile: Serial-Connected Slave
When to Use
Use this profile to connect a slave device (or devices) using Modbus RTU or Modbus ASCII. This profile is applicable to environments in which multiple masters will control the slave or slaves.
Configuration Options
The serial port connection must be configured for the protocol required by the slave, in this case Modbus RTU or Modbus ASCII.
The network connection usually does not require configuration. The only exception is if the master requires COM port redirection. In this case, the master is an application that resides on a PC, such as a Microsoft Windows system, and communicates only with devices on COM ports.
Setup Information
• To configure the serial port for Modbus ASCII or Modbus RTU, see
"Configure a Serial-Connected Slave: Generic Procedure" on page 82.
• To setup a PC and the device server for COM port redirection using
RealPort, see "Set Up COM Port Redirection" on page 85.
74 Chapter 4 Configure Industrial Automation (IA)
Modbus Profile: Serial-Connected Master
Modbus Profile: Serial-Connected Master
When to Use
Use this profile to connect a master device using Modbus RTU or Modbus
ASCII to the serial port of the device server.
Configuration Options
The serial port connection must be configured for the protocol required by the master, in this case Modbus RTU or Modbus ASCII. If the remote slave supports TCP socket communication, which is the case if the remote slave is connected to another device server, Digi recommends this option.
Modbus/TCP is the other supported network option. This master can be configured to control up to 8 slaves.
Setup Information
• To configure the port for Modbus ASCII or Modbus RTU and the
network for TCP socket communication, see "Configure a Serial-
Connected Master: TCP/UDP Sockets" on page 83.
• To configure the port for Modbus ASCII or Modbus RTU and the
network for Modbus/TCP, see "Configure a Serial-Connected Master:
Generic Procedure" on page 82.
Chapter 4 Configure Industrial Automation (IA) 75
DF1 Profile: Serial-Connected Slave
DF1 Profile: Serial-Connected Slave
When to Use
Use this profile to connect a slave device (or devices if multiple slaves are connected) using DF1 Full-Duplex and DF1 Half-Duplex protocols.
Configuration Options
The serial port connection must be configured for the protocol required by the slave, in this case DF1 Full-Duplex or DF1 Half-Duplex.
The network connection usually does not require configuration. The only exception is if the master requires COM port redirection. In this case, the master is an application that resides on a PC, such as a Microsoft Windows system, and communicates only with devices on COM ports.
Setup Information
• To configure the serial port of the device server for DF1 Full-Duplex or
DF1 Half-Duplex, see "Configure a Serial-Connected Slave: Generic
• To set up a PC and the device server for COM port redirection using
RealPort, see "Set Up COM Port Redirection" on page 85.
76 Chapter 4 Configure Industrial Automation (IA)
DF1 Profile: Serial-Connected Master
DF1 Profile: Serial-Connected Master
When to Use
Use this profile to connect a master device using DF1 Full-Duplex and DF1
Half-Duplex protocols to the serial port.
Configuration Options
The serial port connection must be configured for the protocol required by the master, in this case DF1 Full-Duplex or DF1 Half-Duplex. If the remote slave supports TCP socket communication, which is the case if the remote slave is connected to another device server, Digi recommends this option.
For DF1 Full-Duplex users, Allen Bradley Ethernet and Ethernet/IP are other supported network options.
Setup Information
• To configure the port for DF1 Full-Duplex or DF1 Half-Duplex and the
network for TCP socket communication, see "Configure a Serial-
Connected Master: TCP/UDP Sockets" on page 83.
• To configure the port for DF1 Full-Duplex and the network for Allen
Bradley Ethernet or Ethernet IP, see "Configure a Serial-Connected
Master: Generic Procedure" on page 82.
Chapter 4 Configure Industrial Automation (IA) 77
Omron Family Profile: Serial-Connected Slave
Omron Family Profile: Serial-Connected Slave
When to Use
Use this profile to connect a slave device (or devices) using one of the
Omron serial port protocols, Hostlink, FINS, or CompoWay/F.
Configuration Options
The serial port connection must be configured for the protocol required by the slave, Hostlink, FINS, or CompoWay/F.
The network connection usually does not require configuration. The only exception is if the master requires COM port redirection. In this case, the master is an application that resides on a PC, such as a Microsoft Windows system, and communicates only with devices on COM ports.
Setup Information
• To configure the serial port of the device server for any of the Omron
protocols, see "Configure a Serial-Connected Slave: Generic
• To setup a PC and the device server for COM port redirection using
RealPort, see "Set Up COM Port Redirection" on page 85.
78 Chapter 4 Configure Industrial Automation (IA)
Omron Family Profile: Serial-Connected Master
Omron Family Profile: Serial-Connected Master
When to Use
Use this profile if you want to connect a master device to the serial port using one of the Omron serial port protocols, Hostlink, FINS, or
CompoWay/F.
Configuration Options
The serial port connection must be configured for the protocol required by the master, in this case Hostlink, FINS, or CompoWay/F. If the remote slave supports TCP socket communication, which includes a slave connected to another device server, Digi recommends this network option.
UDP Sockets is another supported network option.
Setup Information
To configure the port for one of the Omron protocols and the network for
TCP or UDP socket communication, see "Configure a Serial-Connected
Master: TCP/UDP Sockets" on page 83.
Chapter 4 Configure Industrial Automation (IA) 79
Other Serial Port Protocol Profile: Serial-Connected Slave
Other Serial Port Protocol Profile: Serial-Connected Slave
When to Use
Use this profile if you want to connect a slave device to the serial port using any IA serial port protocol not previously discussed.
Configuration Options
In this configuration, you do not set up the port of the device server for an
IA protocol. If you plan to use RealPort for COM port redirection, you simply set up the port for RealPort. If you plan to have the master access the device server using TCP or UDP sockets, you simply configure the standard serial port parameters required by the attached slave, such as line speed, number of data bits, and parity scheme. No special network configuration is required in either case.
Setup Information
•
To set up the device server for RealPort, see "Set Up COM Port
•
To set up the port for an “unsupported” IA protocol, see "Configure a
Serial-Connected Slave: Other IA Protocol" on page 83.
80 Chapter 4 Configure Industrial Automation (IA)
Other Serial Port Protocol Profile: Serial-Connected Master
Other Serial Port Protocol Profile: Serial-Connected Master
When to Use
Use this profile if you want to connect a master device to the serial port using any IA serial port protocol not previously discussed.
Configuration Options
In this configuration, you do not set up the port of the device server for an
IA protocol. You simply configure the standard serial port parameters required by the attached master, such as line speed, number of data bits, and parity scheme and then configure the port for autoconnection.
Setup Information
See "Configure a Serial-Connected Master: Other IA Protocol" on page 84.
Chapter 4 Configure Industrial Automation (IA) 81
Configure a Serial-Connected Slave: Generic Procedure
Configure a Serial-Connected Slave: Generic Procedure
When to Use
Use this procedure when a protocol slave is connected to the serial port of the device server. Use it except when the associated master requires COM
port redirection. (See "Set Up COM Port Redirection" on page 85 for
information.)
Procedure
1. Access the web interface by entering the device server IP address in a browser’s URL window.
2. Log in to the device server with the username root. The default password is dbps.
3. From the main menu, choose Setup Wizards > Industrial Protocols.
4. Choose the serial port protocol required by the slave that is connected to the serial port.
5. Choose Slave as the device type.
Any number of network masters can communicate with the slave.
Configure a Serial-Connected Master: Generic Procedure
When to Use
Use this procedure when a protocol master is connected to the serial port of the device server. Use it except when the master requires TCP socket or
UDP socket communication. (See "Configure a Serial-Connected Master:
TCP/UDP Sockets" on page 83 for information.)
Procedure
1. Access the web interface by entering the device server IP address in a browser’s URL window.
2. Log in to the device server with the username root. The default password is dbps.
3. From the main menu, choose Setup Wizards > Industrial Protocols.
4. Choose the serial port protocol required by the master.
5. Choose Master as the Mode.
6. Configure up to 8 network slaves.
82 Chapter 4 Configure Industrial Automation (IA)
Configure a Serial-Connected Master: TCP/UDP Sockets
Configure a Serial-Connected Master: TCP/UDP Sockets
When to Use
Use this procedure in the following situations:
• When a protocol master using one of the supported serial port protocols
(Modbus ASCII, Modbus RTU, DF1 Full-Duplex, DF1 Half-Duplex,
FINS, Hostlink, CompoWay/F or a protocol that meets Digi’s definition of a “user-defined” protocol) is connected to the serial port.
• When the master requires TCP or UDP sockets for network communication.
Procedure
1. Access the web interface by entering the device server IP address in a browser’s URL window.
2. Log in to the device server with the username root. The default password is dbps.
3. From the main menu, choose Setup Wizards > Industrial Protocols.
4. Choose the serial port protocol required by the master.
5. Choose Master as the Mode.
6. Configure up to 8 network slaves.
7. Change the default socket number only if required.
Configure a Serial-Connected Slave: Other IA Protocol
When to Use
Use this procedure in the following situations:
• When the device connected to the serial port is a slave that is using a
“non-supported” serial-port protocol, that is, the serial port protocol is not Modbus ASCII, Modbus RTU, DF1 Half-Duplex, DF1 Full-Duplex,
FINS, Hostlink, CompoWay/F, or a protocol that meets the definition of a “user-defined” protocol.
• When you do not want to set up the device server for RealPort COM
Port redirection.
• When multiple masters will not be communicating with this slave.
Chapter 4 Configure Industrial Automation (IA) 83
Configure a Serial-Connected Master: Other IA Protocol
Procedure
1. Access the web interface by entering the device server IP address in a browser’s URL window.
2. Log in to the device server with the username root. The default password is dbps.
3. From the main menu, choose Configure > Port.
4. From the Port configuration page, set the Device type to Printer, adjust other serial port communication parameters as required by the connected slave, and click Submit.
5. Choose Advanced, check Binary Mode, and click Submit.
Configure a Serial-Connected Master: Other IA Protocol
When to Use
Use this procedure when the device connected to the serial port is a master that is using a “non-supported” serial-port protocol, that is, the serial port protocol is not Modbus ASCII, Modbus RTU, DF1 Half-Duplex, DF1
Full-Duplex, FINS, Hostlink, CompoWay/F, or a protocol that meets the definition of a “user-defined” protocol.
Procedure
1. Access the web interface by entering the device server IP address in a browser’s URL window.
2. Log in to the device server with the username root. The default password is dbps.
3. From the main menu, choose Configure > Port.
4. From the Port configuration page, set the Device type to Modem In, adjust other serial port communication parameters as required by the connected master, then choose Submit.
The Terminal type field does not matter.
5. If you want to configure the port to launch an automatic connection to the slave, click Advanced.
6. Choose Enable Autoconnect.
7. Specify the IP address of the slave.
8. Specify a TCP port to use for this connection. If this is a connection to another device server, use 2101 as the TCP port number.
9. If you want the autoconnection to launch immediately, choose Force
DCD.
10. Choose Binary Mode.
11. If you want to enable UDP sockets (instead of TCP sockets), choose
UDP Serial, use the online help for information on completing configuration task.
12. When you complete configuration, click Submit.
84 Chapter 4 Configure Industrial Automation (IA)
Set Up COM Port Redirection
Set Up COM Port Redirection
When to Use
Use these procedures when a slave is connected to the serial port of the device server and the master, which must be an application residing on a
Microsoft Windows system, requires COM port redirection.
Setup Tasks: an Overview
To enable Com port redirection--which requires that RealPort software be running on the same PC as the master application--complete the following tasks:
1. Configure the serial port for RealPort.
See "Configure the Serial Port for RealPort" on page 86.
2. Install RealPort software on a host system.
3. Configure the port on the RealPort PC.
See the PC’s documentation for information on configuring serial ports.
Chapter 4 Configure Industrial Automation (IA) 85
Set Up COM Port Redirection
Configure the Serial Port for RealPort
Use this topic for information on configuring the Digi device.
1. Access the Digi device configuration from a web browser by entering the device’s IP address in the browser’s URL window.
2. Log on to the Digi device as the root user. The default password is
dbps.
3. Do one of the following:
If the slave is using a supported serial port protocol
Choose Port from the main menu.
Set the Device Profile to IA.
Click Apply and enter the protocol information.
If the slave is not using a supported serial port protocol
Install the RealPort driver on your
SCADA system. Refer to the RealPort
Installation Guide as needed.
4. Use the RealPort port profile and the associated help text to configure the RealPort driver with the IP address and TCP port number used by the device server.
5. Follow the prompts to complete configuration of the RealPort driver.
86 Chapter 4 Configure Industrial Automation (IA)
RealPort: Determining Whether to Install RealPort
RealPort: Determining Whether to Install RealPort
Chapter 4 Configure Industrial Automation (IA) 87
RealPort: Determining Whether to Install RealPort
88 Chapter 4 Configure Industrial Automation (IA)
Chapter 5
About MEI Settings
C o n f i g u r e M E I S e t t i n g s
This chapter describes configuring MEI (Multiple Electrical Interface) settings through the web interface for the PortServer TS 8 MEI* and
PortServer TS 16 MEI*. The internal MEI settings are switched to EIA-232 by default.
*Except for the PortServer TS 8 MEI and PortServer TS 16 MEI devices, the remaining Digi TS Family have external DIP switches for MEI settings.
About MEI Settings
PortServer TS 8/16 MEI devices are shipped with the ports switched to
EIA-232 by default. The 232 drivers will generate voltages of 6V max. This voltage is well within the tolerances of EIA 422/485. The 232 drivers are current limited so they can’t over-drive another EIA-422/485 output and damage their devices.
The same engineering applies if a port is set at EIA-422 and a 232 device is connected to it. The voltage generated is within the tolerance of the serial device and will not damage either device.
In either case, your serial device may or may not produce ‘data chatter’ - that is, text strings that have no meaning. This is an indication that the MEI settings are not in agreement and should be configured.
If there is a loss of power to the unit, the device will not lose the MEI configuration. After it boots up, it will recall and apply the last MEI settings.
Configure MEI Switches
1. Log into the Digi PortServer TS.
2. Click Serial Ports > port #.
3. Select your port profile for your environment and click Apply.
4. Click MEI Serial Settings.
5. Select the Tx Control setting for your scenario.
• Select Tx Control > Always on if this device is the only one transmitting on one wire pair, such as a single master in a master/slave configuration or if only two devices are attached.
• Select Tx Control > Auto if multiple devices need to share the bus in a dual master scenario or if the device is acting as slave in a mul-
6. Click Apply and the settings will take effect.
7. Repeat steps 2-6 for each port.
8. If you have not done so already, connect your serial device to the appropriate serial port.
Chapter 5 Configure MEI Settings 89
Four-Wire Multi-Drop Network Scenarios
Set the Supported Baud Rate for Multi-Drop Support
The PortServer TS 8/16 MEI requires setting a baud rate range in order to perform the automatic transmitter control. This setting does not influence the performance in EIA-232 mode or for EIA-422/485 configurations where the transmitter is always on.
The range supported by default is: 50 -230400 bps
To change the supported baud rate range
1. Select System > MEI.
2. From the Baud Rate drop-down box, select the appropriate baud rate.
3. Select Enable all serial ports (to enable the serial port transmitter) if appropriate.
4. Click Apply for configuration to take effect.
Four-Wire Multi-Drop Network Scenarios
There are two scenarios of devices on a four-wire multi-drop network: the
Master and the Slave. A Master has a dedicated pair of wires to talk to the
Slaves. The Slaves share a return pair to the Master and need to control their transmitters so that only one device at a time uses that pair. Following are the specific procedures to set up a Master or Slave MEI setting.
MEI Configuration for a Single Master
1. Click Serial Ports > port # > MEI Serial Settings.
2. Select 422/485, Tx Control > Always on.
3. Select Enable alternative pinout (altpin). This option is only enabled with 4 Wire. See the Table for Pin Outs for more information.
4. Click Apply for settings to take effect.
MEI Configuration for a Slave
1. Click Serial Ports > port # > MEI Serial Settings.
2. Select 422/485, Tx Control > Auto.
3. Select Enable alternative pinout (altpin). This option is only enabled
with 4 wire. See the "MEI Configuration for a Slave" on page 90 for
more information.
4. Click Apply for settings to take effect.
Note: You do not need to reboot after you click Apply for MEI settings to take effect.
90 Chapter 5 Configure MEI Settings
Pinouts
Four-Wire Multi-Drop Network Scenarios
05
06
07
08
01
02
03
04
09
10
Pin
Number
RI
DSR
RTS
CGND
/TxD
/RxD
SGND
CTS
DTR
DCD
EIA-232
Signal
Standard 10-Pin
EIA-422/485
Signal
(4/8 Wire)
TXD- (B)
RxD- (B)
RTS+ (A)
CGND
TxD+ (A)
RxD+ (A)
SGND
CTS+
RTS- (B)
CTS- (B)
Optional 8 pin
EIA-422/485
Signal
(Alt-4-Wire)
RxD- (B)
TxD+ (A)
CGND
RxD+ (A)
SGND
TxD- (B)
EIA-485 Signal
(2-Wire Mode)
Data- (B)
CGND
Data+ (A)
SGND
Chapter 5 Configure MEI Settings 91
Four-Wire Multi-Drop Network Scenarios
92 Chapter 5 Configure MEI Settings
About Embedded Modem Products
Chapter 6
C o n f i g u r e E m b e d d e d M o d e m
About Embedded Modem Products
The PortServer TS 1 M MEI and PortServer TS 3 M MEI function as both terminal server and modem. The embedded modem can be used with PPP, dial-in, dial-out, or auto answer and conforms to the standard AT command interface.
The PortServer TS 1 M MEI and PortServer TS 3 M MEI allow:
• Remote monitoring
• Diagnostics
• Data collection
• Dial-up or Ethernet connectivity
For a complete AT command reference, see the AT Command Reference
(Digi part number 90000270) on the Digi website.
The remaining ports can be configured the same as any Digi TS Family product, either through the web interface or command line.
Connect Hardware
The PortServer TS 1/3 M MEI comes with a bidirectional cable for connecting the modem (port 1) to the phone line.
1. Plug the cable with the ferrite end into the modem port.
2. Plug other end into phone line.
3. Connect Ethernet.
4. Connect power supply.
Chapter 6 Configure Embedded Modem 93
Configure Device Settings
Configure Device Settings
1. Assign an IP address to the Digi device; see "Configure the IP Address" on page 23.
2. Open a web browser. Enter the device’s IP address in the URL bar. The device’s web interface is opened.
3. Select Serial Ports > Change profile
4. Select the appropriate port profile (Custom shows all options)
5. Enter the appropriate parameters and click Apply to save.
6. Click Reboot for changes to apply.
94 Chapter 6 Configure Embedded Modem
Serial Power Feature
Chapter 7
C o n f i g u r e P o w e r O v e r S e r i a l P o r t s
Serial Power Feature
The Serial Power feature available for the PortServer TS P MEI Series allows the Digi device to power a serial device (power out) or use a serial device to power the Digi device (power in). The advantage of this feature is to eliminate an external power supply.
Power out is available on all ports through Ring Indicator (RI) or Data
Terminal Ready (DTR). Power in is available only through RI and only on port one (1). The Serial Power feature is active on a specific port when that port is configured for RS 232 operation.
• The power out budget equals one (1) watt (the total amount of power available). The available power can be divided in any combination between the ports but the following rules must be observed:
• RI = 5 volts @ up to 200 mA (max)
• DTR = 9 volts @ up to 100 mA (max)
• You may use DTR or RI as the source of power (power out) on any port but you may not use both DTR and RI on the same port.
• Pinout information:
• RI is pin 1
• DTR is pin 9
• RI signaling is lost when the pin is used for power.
Chapter 7 Configure Power Over Serial Ports 95
Configure Ring Indicator (RI) Power
Configure Ring Indicator (RI) Power
RI Power In
Ring Indicator (RI) power in accepts power into the Digi device only on port one. Power in is available using the RI pin. The Digi device requires power in the range of 9-30 VDC @ 525mA (max). Ports 2, 3, and 4 can still supply power to a serial device through the RI or DTR pins for each port. When using power in through the RI, the external power supplies (both powered
Ethernet and the barrel connector power supply) are inoperative. Altpin will not work for RI power in.
1. Open the device case and move the black jumper to the following settings:
P-6 jumper on pins 1 and 2
Note When the jumper is placed correctly for power in, the jumper will set on the pins closest to the edge of the board. The left arrow indicates the open pin and the right arrow is pointing to the jumper.
RI Power Out
96
2. Close the device unit enclosure.
RI power out is available on all ports. The total power budget for this feature is one (1) watt not to exceed 5 volts @ up to 200mA on any single port. The following procedure assumes the unit will only be used for RI power out.
1. Set the port DIP switches to the following places: switch 1 and 3 are up
and 2 and 4 are down (see "Serial Power Table" on page 98 for
illustration).
2. Enable the RI power through the web interface.
3. Connect power supply with the barrel-connector power supply provided with the device or use powered Ethernet.
Note: If the unit will be used with RI power in (port 1 only), set the jumper to the following setting:
P-6 jumper on pins 1and 2 and do not use an external power source. Port 1 cannot be used for both power in and power out.
Chapter 7 Configure Power Over Serial Ports
Configure DTR Power
Configure DTR Power
Power Out
Data Terminal Ready (DTR) power out is the factory default on the Digi device. Total power budget for this feature is one (1) watt not to exceed 9 volts @ up to 100mA to any single port.
1. Set the port DIP switches to EIA 232 (switch 1 is up, 2, 3, and 4 are down) to enable DTR power.
Open the port and set DTR high.
Note Here are the pins to verify the jumper position. The
default position has the jumper on the two pins furthest from the edge. DO
NOT MOVE THE JUMPER
FROM THE DEFAULT
UNLESS USING RI POWER
IN.
If you are having trouble with your unit after using the Power over port feature, you may have tripped the circuit breaker in the unit. You can identify this by the RI or DTR signal indicators found in the System
Information under Administration on the main menu in the web interface.
Click the port number using serial power. (Remember serial power out is unavailable if the MEI settings are not 232.)
Under serial power will be a message if the breaker is tripped. Follow the instructions to reset.
From the command line, issue the two commands below for additional information.
• “display circuitbreaker” to display the status of the circuit breaker
• “set config circuitbreaker=reset” to reset the circuit breaker.
“set config” also displays the status of the circuitbreaker state.
Chapter 7 Configure Power Over Serial Ports 97
Serial Power Table
Serial Power Table
Use this table for summary information for a serial power setup.
.
DTR power
OUT
RI power
OUT IN
Switch settings
DTR setting
Ports allowed
Jumper pin settings
Power budget
DTR ON
1, 2, 3, 4
P-6 jumper on pins
2 & 3
(Factory Default)
9v @ up to 100mA one watt
DTR OFF
1*, 2, 3, 4
*unless port 1 is used for power in
P-6 jumper on pins
2 & 3
(Factory Default)
5v @ up to 200 mA one watt
DTR OFF
1
P-6 jumper on pins
1 & 2
9 -30 v @ up to
525mA (max)
98 Chapter 7 Configure Power Over Serial Ports
Chapter 8
D i g i R e m o t e P o w e r M a n a g e r ( D i g i R P M )
Digi Remote Power Manager (Digi RPM) is an intelligent power distribution unit for remote power management that can be used with PortServer TS
Family products. When integrated with PortServer TS products, Digi RPM allows power management and device configuration from anywhere across the corporate LAN/WAN. It provides an easy solution for the supervisory control and management of attached electrical devices.
A Digi RPM integrated with your PortServer TS product can be used to:
• Remotely power on/off/reboot devices. Power control consists of three basic functions: on, off, and reboot (power cycle).
• Measure electrical load and monitor ambient temperature.
• Configure alarms for 24/7 “real-time” monitoring and notification of out-of-spec conditions, including load and ambient temperature. A user interface is provided for configuring these alarms. Digi RPM also provides statistics on average/apparent power, RMS voltage/current, circuit breaker status and maximum current.
• Integrate with select PortServer TS terminal servers and device servers for console and power management over Ethernet.
Digi RPM is available in both eight-port 1U rack-mountable and ten-port 0U rack-mountable versions.
Chapter 8 Digi Remote Power Manager (Digi RPM) 99
Configuration Scenarios Using Digi RPM
Configuration Scenarios Using Digi RPM
There are two typical scenarios when using Digi RPM and the power management feature with PortServer TS Family products:
• A non-serial device connected to Digi RPM
• A serial device managed by a PortServer TS device, but powered by
Digi RPM
Non-Serial Device Connected to Digi RPM
The simplest scenario is a non-serial device connected to the Digi RPM; for example, an environmental sensor controller or a tape backup device. The
Digi RPM’s power-management settings are configured and accessed through the web interface for the PortServer TS device to which it is connected. This illustration shows a Digi RPM configured through a
PortServer TS 16 for use in powering non-serial devices.
D i g i R P M 8
POWER
ALARM FACTORY RESET
ON
UNIT ID CASCADE CONSOLE
100 Chapter 8 Digi Remote Power Manager (Digi RPM)
Digi RPM Configurable from Web Interface or Command Line
Serial Device Managed by PortServer TS but Powered by Digi RPM
The second configuration scenario involves a serial device, such as a router or server, that is managed through a port on a Digi PortServer TS device, but has its power supply mapped through the Power Management feature. The Digi RPM and power-management settings are configured and accessed through the web interface for the PortServer TS device.
After configuration of the devices in this scenario is complete, you need only reference the console management port on device server to also manage power. The Power Management feature handles the relationship of a specific outlet to a serial device as if the power supply were also connected to the same port as the serial device. In other words, you do not need to see the physical connection or remember which outlet controls a specific serial device after configuration - the PortServer TS device server does that for you. The following illustration shows a Sun server configured through a serial port connection on the PortServer TS 16.
S un
S erver
Digi RPM 8
POWER
ALARM FACTORY RESET
ON
UNIT ID CASCADE CONSOLE
Digi RPM Configurable from Web Interface or Command Line
Power management through the Digi RPM can be configured from either the web interface or command-line interface for your PortServer TS device that is connected to the Digi RPM.
From the web interface, which this guide emphasizes, power management is configured through the serial port settings:
Configuration > Serial Ports > port > Port Profile >
Power Management
Once set up, power management equipment is monitored and controlled at:
Management > Power
From the command line, the “set powerunit” command configures power management options, and the “power” command controls and displays the status of the Digi RPM. See the Digi One and PortServer TS Family
Command Reference for these command descriptions.
Chapter 8 Digi Remote Power Manager (Digi RPM) 101
Process for Configuring and Managing Digi RPM
Process for Configuring and Managing Digi RPM
From the web interface, configuring and managing the Digi RPM involves these steps:
1. Connect the Digi RPM to the PortServer TS device and power up.
2. Configure Digi RPM settings, including optional thresholds and alarms.
3. Configure outlets on the Digi RPM, including user access permissions to the outlets.
4. Manage power devices and power controllers.
• Manage power devices: view status of outlets and change status as needed (on, off, reboot).
• Manage power controllers: manage individual outlets or all outlets, view current settings in the Digi RPM, including current voltage and temperature status.
Connect Digi RPM to PortServer TS Device and Power Up
To connect the Digi RPM to your PortServer TS device, use the PortServer
TS to SunNetra (P/N 63000222-02) cable provided with the Digi RPM unit.
Plug one side into the “Console” port of the Digi RPM unit and the other into any port of the PortServer TS product.
Make sure that the DIP switches of the unit are set to “Off.” Plug the Digi
RPM into an appropriate power source and turn it on.
Configure Digi RPM Settings
A Power Management port profile is available for use to configure your Digi
PortServer device and its serial ports for use with the Digi RPM. This port profile is used to control and manage the Digi RPM in its power-control actions (on, off, reboot).
1. Log in to the Digi PortServer TS unit (username root, password dbps).
2. Select Configuration > Serial ports.
3. Select the port number of the serial port you want to connect to the Digi
RPM.
4. The Power Management port profile has configuration settings appropriate for a serial port connected to a Digi RPM power controller. If the Power Management port profile has not already been associated with the port through the Digi Device Setup Wizard, click
Change Profile. Select Power Management from the list of port profiles and click Apply.
102 Chapter 8 Digi Remote Power Manager (Digi RPM)
Configure Digi RPM Settings
5. In the Profile Settings part of the page, select whether the power controller settings will be automatically detected or whether you will configure the settings yourself.
• Automatically Detect Power Controller: Configuration settings for the Digi RPM are automatically detected after clicking Apply. Once the Digi RPM is detected, the settings are populated on the page.
The Manually Configure Power Controller option is selected, allowing you to edit the settings as needed. You can correct the number of ports, if necessary, or edit the port title.
• Manually Configure Power Controller: Configuration settings for the Digi RPM power controller are manually entered. Enter the following, then click Apply:
Manufacturer: Select the manufacturer of the power controller.
Outlets: Enter the number of outlets on the Digi RPM power controller.
Chapter 8 Digi Remote Power Manager (Digi RPM) 103
Configure Digi RPM Settings
6. Optionally, set thresholds and alarms for the Digi RPM and click Apply.
Digi RPM can be configured to generate an audible alarm and an
SNMP trap when either of the following types of thresholds are reached on the unit:
• Current Alarms (amps): The current alarm threshold monitors the electric current on the Digi RPM. You can set up to four thresholds, depending on the number of current sensors on the Digi RPM.
When the sensor's specified amperage level is reached, the Digi
RPM will emit an audible alarm. Current alarm thresholds are configurable in the range of 0.1 to 99.9 Amps.
To generate current alarm threshold SNMP traps, you must also go to the System > SNMP configuration page and select Generate
Power Unit Current Threshold Traps option, and specify a destination IP address for the SNMP trap.
• Temperature (°C): This alarm threshold monitors the temperature on the Digi RPM. You can set up to four thresholds, depending on the number of temperature sensors on the Digi RPM. When the sensor's specified temperature is exceeded, the Digi RPM will emit an audible alarm.
Temperature alarm thresholds are configurable in the range of 0.1 to
99.9 °C
To generate temperature threshold traps, you must also go to the
System > SNMP configuration page, select Generate Power Unit
Temperature Threshold Traps option, and specify a destination IP address for the SNMP trap.
104 Chapter 8 Digi Remote Power Manager (Digi RPM)
Configure Outlets
Configure Outlets
Next, configure the PortServer TS to link serial ports to outlets on the Digi
RPM. From each outlet on the Digi RPM, you can set a name for it, tie its use to a serial port, and control user access to the outlet for power management.
1. On the Port Profile page, click Controller Outlets. A list of other Digi
RPM power controller’s outlets is displayed, along with a summary of each outlet’s current configuration. The number of outlets displayed is the same as the value entered for Outlets on the Controller Settings page.
2. You can either edit outlet settings or clear them.
• To edit the settings of a power outlet, click on that outlet's link under the Outlet or Device Name heading.
• To clear the settings of a power outlet, click on Unplug Device... under the Action heading, and confirm that you want to clear the settings.
Chapter 8 Digi Remote Power Manager (Digi RPM) 105
Configure Outlets
3. The Power Outlet Configuration page is displayed.
106
• In the Device Name field, enter a name for the device plugged into this power outlet. If you give the same device name to multiple devices, such as “router,” they can be managed as a single entity.
For example, multiple servers that have been assigned the same
Device Name can be shut down or rebooted.
• If the powered device is a serial device, in the Serial Port field, specify the serial port to which the powered device is connected.
• In the Power Management Access section, configure user access permissions to the outlet.
Users can be assigned permission to manage the outlet. A user with access permissions to the outlet will have the option to power a connected device on or off or reboot the device.
Individual users must already be configured before they can be assigned to manage power outlets. To add users, go to
Configuration > Users.
Users that currently have permission to control the outlet are listed in the Username/Action table.
To allow a user access permissions to the outlet: In the bottom row, select a Username and click Add.
To restrict a user from accessing the outlet: Click Remove.
Apply these users to all outlets with the same device name:
Apply these users to all outlets with the same serial port:
These options allow you to easily assign the same users to manage each outlet with the same device name or serial port.
4. Click Apply and repeat steps 2-3 for each outlet you want to configure.
Chapter 8 Digi Remote Power Manager (Digi RPM)
Manage Power Devices and Power Controllers
Manage Power Devices and Power Controllers
After power devices and controllers are configured, you can manage them.
From the web interface, go to Management > Power. From the commandline interface, issue the “power” command.
In the web interface, there are two power-management actions:
Manage Power Devices and Manage Power Controllers.
Manage Power Devices
The Manage Power Devices page shows the status of outlets and allows you to change the power-cycle action of each outlet (on, off, reboot).
To change the power-cycle action, click Power and choose the available action. This change affects the power-cycle action for all outlets assigned the same device name.
Chapter 8 Digi Remote Power Manager (Digi RPM) 107
Manage Power Devices and Power Controllers
Manage Power Controllers
The Manage Power Controllers page allows you to get a quick update of the status of Digi RPM power controllers configured for use with your
PortServer TS device, and to power all outlets for each Digi RPM power controller.
.
108 Chapter 8 Digi Remote Power Manager (Digi RPM)
Manage Power Devices and Power Controllers
Display Power Controller Status
In the list of power controllers, the Status field shows the brief status of the
Digi RPM power controller, such as whether it is connected or disconnected.
For more detailed status of the power controller, click the power controller’s name, for example, Digi RPM on Port 2. The Controller Status page displays the current state of the Digi RPM power controller, including circuit breaker condition, temperature threshold, current temperature,
RMS voltage, alarm threshold, RMS current, and the maximum current detected.
Clicking the Reset button resets the Max Current Detected value to 0.0 amps.
The Refresh button refreshes the status values.
.
Chapter 8 Digi Remote Power Manager (Digi RPM) 109
Manage Power Devices and Power Controllers
Manage All Outlets at Once
From the Manage Power Controllers page, you can power all outlets for the
Digi RPM by clicking Power all Outlets.
Depending on what you want the outlets to do, click Turn On, Turn Off,
Reboot, or cancel the operation.
110 Chapter 8 Digi Remote Power Manager (Digi RPM)
Chapter 9
About SNMP and the Digi Device Agent
C o n f i g u r e S N M P
This chapter describes configuring Simple Network Management Protocol
(SNMP), the network management protocol that governs the exchange between nodes and stations.
About SNMP and the Digi Device Agent
This section introduces SNMP and network management in TCP/IP networks and it describes the device server agent, including:
• Network management components
• SNMP agent
• SNMP traps
• MIB (management information base) support of the Digi device agent
• Support traps of the Digi device agent
SNMP Version Support
Devices in the Digi One and PortServer TS Family support SNMP
Version 1.
Network Management Components
The TCP/IP network management architecture contains the following components:
• Managed nodes such as host systems, routers, terminal and communications servers (such as device server) and other network devices.
• One or more network managers (also called network management stations), which are the points from which the network is managed
• Agents that reside on managed nodes and retrieve management information and communicate this information to network managers.
• The network management protocol, SNMP, which governs the exchange of information between the nodes and stations.
• Management information, which is the database of information about managed objects. This database is called the management information
base (MIB).
SNMP Management Agent
Each managed node contains at least one agent—a component that responds to requests from the network manager—that retrieves network management information from its node and notifies the manager when significant events occur.
Chapter 9 Configure SNMP 111
About SNMP and the Digi Device Agent
SNMP Traps
An ‘eventing’ mechanism defined by SNMP is called a trap, which is a report or “alarm” from a managed node to an SNMP manager that a significant event has occurred.
MIB Support
The SNMP management agent supports the following MIBs. Digi-specific
MIBs are available for downloading on the Digi Support site.
• Read-write for MIB II (RFC 1213), which is an Internet-standard MIB, consisting of managed objects from the systems, interfaces, IP, ICMP,
TCP, UDP, transmission, and SNMP group.
• Read-write for the character-stream devices using SMIv2 MIB (RFC
1658).
• Read-write for the RS-232-like hardware devices MIB (RFC 1659).
• Read-write for the device server IP Network Control Protocol of the
Point-to-Point Protocol MIB (RFC 1473).
Message Support
The SNMP agent supports the Set, Get, GetNext, and Trap messages as defined in RFC 1157. These messages are used as follows:
• Set, which means set the value of a specific object from one of the supported MIBs.
• Get, which means retrieve the value of a specific object form one of the supported MIBs.
• GetNext, which means retrieve the value of the next object in the MIB.
• Trap, which means send traps to the manager when a particular type of significant event occurs.
Supported Traps
The agent can send traps when any of the following occur:
• Cold starts (device server initializes)
• Authentication failures
• Login attempts
112 Chapter 9 Configure SNMP
Configuring SNMP from the Web Interface
Configuring SNMP from the Web Interface
1. In the main menu, under System, click SNMP.
2. Fill in the configuration fields and click Apply to save settings.
3. Click Reboot for changes to take effect.
Chapter 9 Configure SNMP 113
Configuring SNMP from the Web Interface
114 Chapter 9 Configure SNMP
What Is Latency?
Chapter 11
L a t e n c y T u n i n g
This chapter discusses latency and a recommended process for defining and addressing latency issues in your network and application.
What Is Latency?
Latency is the amount of time it takes a packet to travel from source to destination. Together, latency and bandwidth define the speed and capacity of a network.
Several factors influence latency, including the traffic pattern and traffic generated by an application, the physical wiring for the network, the use of various TCP/IP timers, and the amount of additional traffic on the network besides that generated by the application.
Recommended Process for Latency Tuning
Following is a process recommended to achieve deterministic Ethernet networking behavior. It uses Digi commercial off-the-shelf (COTS) firmware and hardware, and not any specialized products specifically designed to reduce latency. By following this process, you should be able to define and address latency issues at multiple levels in your network and application.
In summary, the process involves five steps:
1. Determine the characteristics of your application, in terms of traffic pattern and amount of traffic generated.
2. Determine the latency budget and the type of latency in which you are interested.
3. If applicable, depending on the results produced in steps 1 and 2, optimize the physical layer.
4. If applicable, depending on the results produced in steps 1, 2, and 3, optimize the network and transport layer.
5. If applicable, depending on the results produced in steps 1, 2, 3, and 4, optimize the application layer.
Best-Case Scenario
The best-case scenario for achieving deterministic Ethernet networking behavior with DIGI COTS firmware and hardware is a unidirectional master-slave application running over an isolated Ethernet network that is built around Ethernet switches instead of Ethernet hubs. In other words, the best-case scenario is a network that eliminates unnecessary traffic and minimizes Ethernet collisions.
Chapter 11 Latency Tuning 115
Recommended Process for Latency Tuning
Step 1: Determine the Characteristics of Your Application
The first step in addressing latency is to consider the characteristics of your application in terms of traffic pattern and amount of traffic generated.
• What is the main purpose of the application, and the primary activities?
• Traffic pattern: Is it peer-to-peer or master-slave application?
• Amount of traffic generated (x bytes every y minutes): How much data is being transmitted from and received by the application, and over what amount of time? For example, 200 bytes of data sent over 500 milliseconds.
Step 2: Determine Latency Budget and Type of Latency
Identifying the latency budget for your application involves defining what latency means for your network and the application running on it. This latency budget influences how much optimization you may need to perform at the physical, data link/network, and application layers.
• Define how much latency is acceptable.
• Is the latency one-way or round-trip?
Step 3: Optimize the Physical Layer
Depending on the results produced in steps 1 and 2, optimize the physical layer; that is, address the physical-layer characteristics that can affect latency.
Optimizing the physical layer, may include, but is not limited to, these recommendations:
• Use Ethernet switches instead of Ethernet hubs to minimize unnecessary traffic and minimize collisions.
• Use industrial-strength cabling and make sure the wiring is sound. Bad wiring can result in increased collisions.
• Eliminate impedance mismatches.
• Avoid running communications cabling on the same tracks with power cabling or other cabling exhibiting fast voltage swings
• Use a smaller less noise-induced error-prone Ethernet, or data rate.
Lower Ethernet speeds have higher voltages, at which background noise is less relevant and has less of an impact on latency. Voltages associated with 10, 100, and 1000 mbps Ethernet speeds are:
• 10 mbps: 2.3V (CAT5)
• 100 mbps: 0.8V (CAT5)
• 1000 mbps: 0.5V (CAT5E/CAT6)
• Ground to earth all your networking equipment, including the Digi device.
• Use only networking equipment that is certified or known to operate well within the required ranges for vibrations, shock, operating temperature, relative humidity, etc.
116 Chapter 11 Latency Tuning
Recommended Process for Latency Tuning
Step 4: Optimize the Network and Transport Layers
Depending on the results produced in steps 1, 2, and 3, optimize the network and transport layers. Optimizing the network and transport layers, may include, but is not limited to, these recommendations:
• Isolate any unnecessary TCP/IP traffic from the network.
• Choose smaller packets to reduce transit times through intermediate networking devices, as most of these devices are store-and-forward.
• Increase the TCP/IP responsiveness to incoming/outgoing traffic by choosing appropriate values for various TCP/IP timers, such as the retransmission timer, the gratuitous ARP timer, and delayed acknowledgment timer.
• Avoid the use of time-consuming encryption facilities.
Command Options for Optimizing Network and Transport Layers
A major contributor to latency for the network and transport layers is unnecessary retransmissions of data. The command-line interface has several command options to help you reduce these unnecessary retransmissions. Most of these options are available through the command-line interface only, and not the web interface.
For complete descriptions of these commands and options, see the Digi
One and PortServer TS Family Command Reference.
There are several considerations for using these latency-related command options:
• Changing the options from their defaults may violate RFCs.
• Decrementing the values for these options increases the amount of network activity, for example, there will be increased retransmissions.
• For a peer-to-peer application, you need to consider both sides of the connection and how options are set. For example, if the setting for the
“rto_min” option for the Digi device is set to a value that is less than the setting for the “delayed_ack” option for the other side of the connection, then there will be a forced retransmission of every packet of data. For a master-slave application, this consideration does not apply.
Chapter 11 Latency Tuning 117
Recommended Process for Latency Tuning
Command
set tcpip set config
Option
garp=30-3600 rto_min=30-1000 optimize={latency|throughput}
This option is also available in the web interface at:
Configuration > System >
Optimization setting.
Description
The frequency of Gratuitous ARP (GARP) announcements. A Gratuitous ARP is a broadcast announcement to the network of a device’s MAC address and the IP address being used for it. This allows the network to update its ARP cache tables without performing an ARP request on the network.
Gratuitous ARP announcements can affect latency in a limited way, because some systems stall or dispose of data that is transmitted during an ARP cache refresh. If this happens, setting the Gratuitous ARP frequency to be more often than the problem system’s time-to-live variable can cause it to refresh the cache without needing to perform a request.
The TCP minimum retransmission time out (RTO), in milliseconds.
TCP uses progressively larger retransmit values, starting at a minimum value that is calculated from a sliding window of ACK response round-trip times that is bounded at the bottom by “rto_min.” So, essentially,
“rto_min” is not necessarily the timeout that will be used as the starting retransmit timeout, but it is the smallest such value that could be used.
This affects latency, because lowering “rto_min” ensures that retransmits take place in less time if they occur. By occurring sooner, the network is able to recover the lost data in less time at the expense of possibly retransmitting data that is still in-flight or successfully received by the other side, but unacknowledged due to a “delayed ACK” mechanism or something similar.
Configures how the Digi device handles network latency.
If your Digi device handles delay-sensitive data, choose “optimize=latency.” If overall network throughput is more important than latency,
choose “optimize=throughput.” For the Digi One
IAP, the default is “latency.” For all other models, the default is “throughput.”
Step 5: Optimize the Application Layer
Optimizing the application layer may include, but is not limited to, these recommendations:
• Avoid having more than one application/network node generating timesensitive traffic in the network Have one traffic generator in a masterslave setup on the network.
• Avoid running other (management) applications, such as email, image or mp3 downloading, etc., while time-sensitive traffic is running.
• Check whether the application itself has timers that cause retransmissions of data.
• Use firewalls.
118 Chapter 11 Latency Tuning
Upgrade Firmware using TFTP
Chapter 10
C o n f i g u r a t i o n M a n a g e m e n t
This chapter describes configuration management activities, including firmware upgrades, backup/restore operations for device configuration files, and restoring the device configuration to defaults.
Upgrade Firmware using TFTP
Firmware upgrades can be performed from the web interface, using TFTP.
If your hardware is connected correctly, make sure you are running the latest firmware version available. Check the Digi Support site for the latest firmware and/or POST updates for your device:
1. Download a copy of the firmware file.
2. Access the Digi device’s web interface by entering the Digi device’s IP address in a browser’s URL window and log on (username root, password dbps).
3. From the main menu, choose Administration > Update Firmware.
4. Browse to the location on your system where the firmware has been saved, select the correct file, and click Update.
5. Reboot the device when prompted.
6. Important: Do not leave your browser until you are prompted to reboot.
7. Access the Digi device’s web interface and verify on the Information
Page that the Firmware version has been successfully updated.
Chapter 10 Configuration Management 119
Backup/Restore Device Configuration Settings
Backup/Restore Device Configuration Settings
You can backup a device's current configuration settings and use them to restore the device’s configuration settings or configure another device. The device configuration settings can be saved to a file on your PC or to TFTP server.
A typical use for this backup/restore operation is when you have several device servers with similar configurations and want to keep a master configuration on a remote host, from which you can easily create variations for downloading to individual device servers.
If you are familiar with the command-line interface, you can also use a backup file to configure the Digi device remotely by entering commands in a text file and then copying the file to the Digi device.
You can copy settings to another device by restoring settings from this backup file to the other device. If you are using static IP addresses you will want to edit the backup file with a text editor to modify or remove the
set config command containing the ip and submask options.
Backup Device Configuration Settings to a File
1. Access the web interface by entering the Digi device’s IP address in a browser’s URL window.
2. Log in to the device server with the username root. The default password is dbps.
3. From the main menu, choose Administration > Backup/Restore.
4. Click Backup. Enter or confirm the filename and location for the backup file location and filename for saving the configuration, and click Save.
Restore Device Configuration Settings from a File
1. Access the web interface by entering the Digi device’s IP address in a browser’s URL window.
2. Log in to the device server with the username root. The default password is dbps.
3. From the main menu, choose Administration > Backup/Restore.
4. In the Restore From File field, enter the name of the backup file, using the Browse button as needed to locate the file.
5. Click Restore.
120 Chapter 10 Configuration Management
Backup/Restore Device Configuration Settings
Backup/Restore to and from a TFTP Server
1. Ensure that TFTP is running on the remote host.
2. Access the web interface by entering the Digi devices’s IP address in a browser’s URL window.
3. Log in to the device server with the username root. The default password is dbps.
4. From the main menu, choose Backup/Restore > TFTP Server.
5. Enter the name of the file and the IP address of the TFTP server and click Backup (to save the file) or Restore (to apply the file).
Chapter 10 Configuration Management 121
Reset Device Configuration to Factory Defaults
Reset Device Configuration to Factory Defaults
Caution: Resetting your Digi device configuration to factory defaults causes it lose all configuration changes, including IP address settings. If you have a complex configuration, contact Digi about saving your configuration before resetting the configuration to factory defaults. See
Chapter 12, "Specifications, Certifications, and Troubleshooting" for
information.
1. Locate the Reset button on your Digi device. The Reset button is in one of four common locations, shown in the figures below.
Digi One SP and Digi One SP/IA Products
Digi One IA and Digi One IAP Products
PortServer TS 8/16 Products
Reset button
122
Reset button
Chapter 10 Configuration Management
PortServer TS 1/2/4 Products
Reset Device Configuration to Factory Defaults
Reset button
2. Use a pen, the point of a paper clip, or some other device to press the
Reset button. Although the object used to access the Reset button must be pointed, be sure it is not sharp or it may damage the Reset button.
3. While holding down the Reset button, power on the Digi device.
4. Release the Reset button after 30 seconds.
5. It may take approximately two minutes for the Digi device to boot up.
Chapter 10 Configuration Management 123
Reset Device Configuration to Factory Defaults
124 Chapter 10 Configuration Management
Chapter 12
Specifications
S p e c i f i c a t i o n s , C e r t i f i c a t i o n s , a n d
T r o u b l e s h o o t i n g
Specifications
Following are the hardware specifications for Digi One and PortServer TS products.
Power Requirements
•
•
•
•
Product
• PortServer TS
• PortServer TS MEI
• PortServer TS M MEI
• PortServer TS P MEI
PortServer TS 8
PortServer TS 8 DC
• PortServer TS 16 DC
• PortServer TS 8 MEI
• PortServer TS 16
• PortServer TS 16 MEI
• PortServer TS 16 Rack DC
Digi One SP
Digi One IA
• Digi One IAP
• Digi One IAP Haz
Typical Power Consumption
DC Current @ 120 Vac (mA)
4W (330mA @ 12 Vdc)
6W (500mA @ 12Vdc)
6W (125mA @ 48Vdc)
10W (200mA @ 48Vdc)
10W (85mA @ 120Vdc)
Max Power
Consumption
(watts)
12W (1A @ 12Vdc)
Recommended Power
Supply Input Rating
(watts)
42W (120V * 35A)
External power supply provided with product purchase
12W (1A @ 12Vdc)
12W (.25A @
48Vdc)
42W (120V * 35A)
External power supply provided with product purchase
20W (.4A @ 48Vdc)
External power supply provided with product purchase
20W (.4A @ 48Vdc) 25W (.45A @ 48Vdc)
20W (.17 A
@12Vdc)
96W (120V * 8A)
12W 2 (250mA @ 48Vdc) 29W (600mA @
48Vdc)
34W (700mA @
48Vdc)
Device is intended to be powered by a listed LPS or Class II power supply rated.
9-30 VDC (barrel connector), 0.37 A minimum or its equivalent.
Chapter 12 Specifications, Certifications, and Troubleshooting 125
Specifications
•
•
Product
Digi One IAP
PortServer TS P MEI
• PortServer TS 1 H MEI
• PortServer TS 2 H MEI
• PortServer TS 4 H MEI
• PortServer TS 1 H cc
MEI
• PortServer TS 2 H cc
MEI
• PortServer TS 4 H cc
MEI
• PortServer TS 1 Haz MEI
• PortServer TS 2 Haz MEI
• PortServer TS 4 Haz MEI
(H - High Temperature Models)
Typical Power Consumption
DC Current @ 120 Vac (mA)
Max Power
Consumption
(watts)
Recommended Power
Supply Input Rating
(watts)
Power over Ethernet IEEE 802.3af:
IEEE 802.3af defines two types of power source equipment: end-span and mid-span.
• End-span refers to an Ethernet switch with embedded
Power over Ethernet technology. These new switches deliver data and power over the same wiring pairs - transmission pairs 1/2 and 3/6.
Mid-span devices resemble patch panels. They are placed between legacy switches and the powered devices. Each of the mid-span ports has an RJ-45 data input and data/power
RJ-45 output connector. Mid-span devices tap the unused wire pairs 4/5 and 7/8 to carry power, while data runs on the other wire pairs.
Digi One IAP and PortServer TS P MEI and are mid-span and end-span.
Typical: 4 watts
Max: 6 watts
Device is intended to be powered by a listed /CN ITE power supply rated 12
VDC (barrel connector), 1.0 A minimum.
126 Chapter 12 Specifications, Certifications, and Troubleshooting
Specifications
Physical Requirements
Attributes
Length
Width
Height
Weight
Ambient
Temperature
Relative humidity
Altitude
13.31cm
5.24 in
8.46 cm
3.3 in
2.42 cm
.952 in
189.9 g
6.1oz
0-60° C
32-122° F
12 cm
4.7 in
2.3 cm
0.9 in
9.4 cm
3.7 in.
4.3 cm
1.72 in.
21.08 cm
8.3 in
9.4 cm
3.7 in
34.04 cm
13.4 in
10.1 cm
4 in
64 g
2.25 oz
0-60° C
32-140°
F
2.3 cm
0.93 in.
59.5 g
2.1 oz
10-45° C
50-113° F
2.54 cm
1 in
1.39 kg
3.05 lbs
5%-90% non-condensing
42.7 cm
16.8 in
16.76 cm
6.6 in
3.6 cm
1.4 in
2.4 kg
5.3 lbs
0-55° C
32-131° F
16.76 cm
6.6 in
4.06 cm
1.6 in
3.2 kg
7.05 lbs
18.44 cm
7.26
13.31 cm
5.24 in
8.46 cm
3.3 in
2.42 cm
.952 in
189.9g
6.1 oz
-35-75° C
-31-167°
F
0 to 12,000 feet
0 to 3,658 meters
Chapter 12 Specifications, Certifications, and Troubleshooting 127
Specifications
Digi One IA DB9 and Screw Terminal Pinouts
4
5
2
3
DB9
Pin
1
8
9
6
7
EIA-232
DCD
RxD
TxD
DTR
GND
DSR
RTS
CTS
NA
EIA-422/485
Full-Duplex
CTS-
RxD+
TxD+
RTS-
GND
RxD-
RTS+
CTS+
TxD-
EIA-485 Half-
Duplex
Not used
RxD+
TxD+
Not used
GND
RxD-
Not used
Not used
TxD-
7
1
2
5
8
4
9
6
3
Screw
Terminal
PortServer TS 1 M MEI and PortServer TS 3 M MEI
• ITU-T V.92/V.90/56K (-92 build option)
• V.34/V.33.6 (-34 build option)
• V.32 bis/14.4K (-32 build option)
• V.22 bis/2400 baud (-22 build option)
• V.22
• V.23
• V.21
• Bell 212A and Bell 103
• V.44 Error Correction
• V.42 LAPM, MNP 2-4 Error Correction
• V.42 bis and MNP Class 5 data compression
128 Chapter 12 Specifications, Certifications, and Troubleshooting
Certifications
Certifications
Following are the product certifications applicable to Digi One and
PortServer TS products.
FCC Part 15 Class A
Applicable to these products:
• Digi One IA
• Digi One IAP
• Digi One IAP Haz
• Digi One SP
• PortServer TS 8
• PortServer TS 8 MEI
• PortServer TS 16 MEI
These devices comply with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) These devices may not cause harmful interference, and (2) These devices must accept any interference received, including interference that may cause harmful operation.
Radio Frequency Interference (RFI) (FCC 15.105)
This equipment has been tested and found to comply with the limits for
Class A digital devices pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential environment. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try and correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Labeling Requirements (FCC 15.19)
This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Modifications (FCC 15.21)
Changes or modifications to this equipment not expressly approved by Digi may void the user's authority to operate this equipment.
Chapter 12 Specifications, Certifications, and Troubleshooting 129
Certifications
Cables (FCC 15.27)
Shielded cables must be used to remain within the Class A limitations.
ICES 003 Class B
Applicable to these products:
• Digi One TS
• PortServer TS 2/4 MEI
• PortServer TS 16
This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference
Regulations of the Canadian Department of Communications.
Le present appareil numerique n'emet pas de bruits radioelectriques depassant les limites applicables aux appareils numeriques de la class B prescrites dans le Reglement sur le brouillage radioelectrique edicte par le ministere des Communications du Canada.
130 Chapter 12 Specifications, Certifications, and Troubleshooting
Certifications
Declaration of Conformity
(in accordance with FCC Dockets 96-208 and 95-19)
Digi International declares, that the product:
Manufacturer's Name:
Digi International
Corporate Headquarters: Manufacturing Headquarters:
11001 Bren Road East
Minnetonka MN 55343
10000 West 76th Street
Eden Prairie MN 55344
Product Name
PortServer TS 1
PortServer TS 2
PortServer TS 4
PortServer TS 1 MEI
PortServer TS 2 MEI
PortServer TS 4 MEI
PortServer TS 1 M MEI
PortServer TS 3 M MEI
PortServer TS 1 P MEI
PortServer TS 2 P MEI
PortServer TS 4 P MEI
PortServer TS 1 H MEI
PortServer TS 2 H MEI
PortServer TS 4 H MEI
PortServer TS 1 H cc
MEI
PortServer TS 2 H cc
MEI
PortServer TS 4 H cc
MEI
PortServer TS 1 Haz MEI
PortServer TS 2 Haz MEI
PortServer TS 4 Haz MEI
PortServer TS 16
PortServer TS 16 Rack
PortServer TS 16 DC Rack
PortServer TS 16 Enterprise to which this declaration relates, meets the requirements specified by the
Federal Communications Commission as detailed in the following specifications:
Model Number
50000836-13
50000836-14
50000836-15
50000836-25
50000836-26
50000836-27
50000836-28
50000836-29
50000836-47
50000836-48
50000836-49
50000836-41
50000836-42
50000836-43
50000836-38
50000836-39
50000836-40
50000836-51
50000836-52
50000836-53
50001207-01
50000854-01
50000722-01
50000855-01
Chapter 12 Specifications, Certifications, and Troubleshooting 131
Certifications
• Part 15, Subpart B, for Class B Equipment
• FCC Docket 96-208 as it applies to Class B personal
• Computers and Peripherals
The products listed above have been tested at an External Test Laboratory certified per FCC rules and have been found to meet the FCC, Part 15,
Class B, Emission Limits. Documentation is on file and available from the
Digi International Homologation Department.
European Compliance
Applicable to these products:
• PortServer TS 8
• PortServer TS 16
• PortServer TS 8/16 MEI
Warning:
This is a Class A product. In a domestic environment, this product may cause radio interference in which case the user may be required to take adequate measures.
132 Chapter 12 Specifications, Certifications, and Troubleshooting
Safety Statements
Safety Statements
PortServer TS 8/16 Safety Statements
WARNING: To prevent electric shock, do not remove the cover of this module while unit is powered up. There are no user-serviceable parts inside. Refer servicing to qualified personnel.
WARNING: Product sold outside the USA or Canada will need to provide appropriate foreign power cord set.
Power Cord Requirements:
• Listed, detachable, maximum 4.5m (14.7 ft) long.
• Rated minimum 125v or 250v, 10A Type SJT or Type SUT flexible cord
• Terminated with IEC320 type appliance plug
Rack Mounting Installation (PortServer TS 16 Rack and DC Rack) Safety Statements
• Distribute weight evenly in the rack to avoid overloading.
• Check equipment nameplate ratings before connecting to the supply circuit to avoid overloads which may damage over-current protection devices and supply wiring.
• Maintain reliable earthing for rack-mounting equipment, especially for supply connections.
• Install equipment in Restricted Access Areas only (dedicated equipment rooms/closets) in accordance with Articles 110-16,
110-17, and 110-18 of the National Electrical Code, ANSI/NFPA 70.
• Connect equipment to a DC supply source (reliably earthed) that is electrically isolated from the AC source.
• Directly connect the equipment chassis to the DC supply systemgrounding electrode conductor or a bonding jumper from a grounding terminal bar (or bus) that is connected to the DC supply system grounding electrode conductor.
• Contain equipment that has a connection between the grounded conductor of the same DC supply circuit, the grounding conductor, and also the point of grounding of the DC system in the same immediate area. Do not ground the equipment elsewhere.
• Locate the DC supply source within the same premises as the equipment.
• Route away and secure all DC input wiring from sharp edges to prevent chaffing as well as provide strain relief.
Provide a readily accessible disconnect device and protective device a fixed wiring for a DC power supply suitable for the specified rated voltage and current. Disconnect and protective devices to be rated 2A Amps maximum.
Chapter 12 Specifications, Certifications, and Troubleshooting 133
Safety Statements
PortServer TS 1/3 M MEI Safety Statements
To avoid contact with electrical current:
• Never install electrical wiring during an electrical storm.
• Never install telephone jacks in wet locations unless that jack is specifically designed for wet locations.
• Use caution when installing or modifying telephone lines.
• Use a screwdriver and other tools with insulated handles.
• You and those around you should wear safety glasses or goggles.
• Do not place telephone wiring or connections in any conduit, outlet or junction box containing electrical wiring.
Do not work on your telephone wiring if you wear a pacemaker. Telephone lines carry electrical current.
• Installation of inside wire may bring you close to electrical wire, conduit, terminals and other electrical facilities. Extreme caution must be used to avoid electrical shock from such facilities. You must avoid contact with all such facilities.
• Telephone wiring must be at least 6 feet from bare power wiring or lightning rods and associated wires, and at least 6 inches from other wire (antenna wires, doorbell wires, wires from transformers to neon signs), steam or hot water pipes, and heating ducts.
• Before working with existing inside wiring, check all electrical outlets for a square telephone dial light transformer and unplug it from the electrical outlet. Failure to unplug all telephone transformers can cause electrical shock.
• Do not place a jack where it would allow a person to use the telephone while in a bathtub, shower, swimming pool, or similar hazardous location.
• Protectors and grounding wire placed by the service provider must not be connected to, removed, or modified by the customer.
Do not touch uninsulated telephone wiring if lightning is likely!
External Wiring
Any external communications wiring you may install needs to be constructed to all relevant electrical codes. In the United
States this is the National Electrical Code Article 800.
Contact a licensed electrician for details.
134 Chapter 12 Specifications, Certifications, and Troubleshooting
Safety Statements
Class I Division 2, Groups A,B,C,D Hazardous Location
Applicable to these products:
• Digi One IA
• Digi One IAP
• Digi One IAP Haz
• PortServer TS 1 Haz MEI
• PortServer TS 2 Haz MEI
• PortServer TS 4 Haz ME
This equipment is suitable for use in Class I, Division 2, Groups A, B, C and
D or Non-hazardous locations only.
Warning: Explosion Hazard – Substitution of components may impair suitability for Class I, Division 2.
Warning: Explosion Hazard – Do not disconnect equipment unless power has been switched off or the area is known to be non-hazardous.
Wiring Terminals for Digi One IA
Wiring terminals shall be plainly marked in the instruction manual delivered with base product, or the device shall be provided with a wiring diagram to indicate the proper connections. Wiring terminals shall also be marked with the tightening torque in 5 lb. in. and “Use Copper Conductors Only.”
Wiring Terminals for Portserver TS 1,2,4 Hcc MEI and Portserver TS 4 Haz MEI
Wiring terminals shall be plainly marked in the instruction manual delivered with base product, or the device shall be provided with a wiring diagram to indicate the proper connections. Wiring terminals shall also be marked with the tightening torque in 2.5 lb. in. and “Use Copper Conductors Only.”
Chapter 12 Specifications, Certifications, and Troubleshooting 135
Regulatory Notices
Regulatory Notices
Product
PortServer TS 1
PortServer TS 2
PortServer TS 4
PortServer TS 1 MEI
PortServer TS 2 MEI
PortServer TS 4 MEI
PortServer TS 1 M MEI
PortServer TS 3 M MEI
PortServer TS 1 P MEI
PortServer TS 2 P MEI
PortServer TS 4 P MEI
PortServer TS 1 H cc
MEI
PortServer TS 2 H cc
MEI x x x x x x x x x x x x x
-
-
-
-
-
-
x x x x x x x x x x x x x
-
-
-
-
-
-
x x x x x x x x x x x x x
-
-
-
-
-
-
x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
x x x x x x
x x x x x x
-
-
-
-
-
-
-
-
PortServer TS 4 H cc
MEI
PortServer TS 1 H MEI
PortServer TS 2 H MEI
PortServer TS 4 H MEI x
PortServer TS 1 Haz MEI x
PortServer TS 2 Haz MEI x x x x -
PortServer TS 4 Haz MEI x
PortServer TS 16 x -
PortServer TS 8
PortServer TS 8 MEI -
-
x x
-
x x x x x x x x
-
-
x x
-
x x x x x x x x -
-
x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x
-
-
-
-
-
-
-
-
-
-
PortServer TS 16 MEI
PortServer TS 16 Rack
DC
x x x x x x x -
x x x x x x x -
Digi One IA
Digi One SP
Digi One IAP
Digi One IAP Haz
PortServer TS 16
Enterprise
x x x x x x -
x x x x x x x -
x x x x x x x x x x x x x -
-
-
-
-
-
-
-
x x x x x x x x x x x x -
x -
x x x x x x x x x
-
-
x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x -
-
-
x x x x x x x x x x -
-
x x x x x x x x x x x x x x x x x x x
136 Chapter 12 Specifications, Certifications, and Troubleshooting
Troubleshooting
Troubleshooting
LEDs for PortServer TS 1/2/4-Port and Digi One Family Products
LED
Power
LEDs
Ethernet
LEDs
Power
(labeled
PWR)
Color
Green
State
On
Steady blinking
Digi One
SP PWR
LED is red
Blinking 1-1-1
Blinking 1-3-1
Blinking 1-5-1
Blinking 9-1-1
Indicates
Power detected
Waiting for an IP address or seeking an IP address from a DHCP server
Starting the EOS
Starting the TFTP process
Configuration returned to factory defaults
Contact Tech Support for help.
1-952-912-3444 or outside the U.S.
+1 (952) 912-3444
No power detected
Signal strength relates to brightness or dimness of the light
Modem is online
Radio Signal
Strength
(Labeled
CD/ACT for
Embedded
Modem)
Yellow
Off
Varying brightness
Modem- Carrier detected
Link
(labeled
Link)
ACT
(labeled
ACT)
Green
Yellow
On
Off
On
Off
Blinking
Physical network detected
No physical network detected
Bad initialization
Ready
Network activity
Note: For all PortServer TS and PortServer TS MEI product families, if LED activity is solid, it means the boot completed successfully.
Chapter 12 Specifications, Certifications, and Troubleshooting 137
Troubleshooting
LEDs for PortServer TS 8/16 Products
LED
Power
Color
Green On
Blinking
State
Link
10/100
ACT
COL
Green
Green
Green
Amber
On
Off
On
Off
On
Off
Blinking
On
Off
Indicates
Power detected.
Indicates that there is data stored in the error log for the PortServer TS device.
To view and clear the error log, go to the command-line interface for the PortServer TS device. To view the error log, enter display error.
To clear the error log, enter display error clear.
Physical Network detected.
No physical network detected.
100Mbit Ethernet detected.
10Mbit Ethernet detected.
Bad initialization.
Ready.
Network activity.
Ethernet collision detected.
No Ethernet collision detected.
138 Chapter 12 Specifications, Certifications, and Troubleshooting
Troubleshooting
Device EIA 232/422/485 Switch Settings
Note: MEI Switch settings apply only to devices with external MEI switches.
Function
EIA-232
EIA-422/485 fullduplex
EIA-485 half-duplex
1
Up
Down
Down
2
Down
Down
Down
Switch settings
3
Down
Down
4
Down
If up, termination.
If down, no termination
Up
Chapter 12 Specifications, Certifications, and Troubleshooting 139
Troubleshooting
RJ-45 Pinouts
Pin number
EIA-232 signal
Standard 10pin EIA-422 signal
(4/8 wire)
Optional 8-pin
EIA-422 signal
(alt-4wire)
PortServer TS
8/16 MEI only
EIA-485 signal
(2-wire mode)
05
06
07
08
01
02
03
04
09
10
RI
DSR
RTS
CGND
/TxD
/RxD
SGND
CTS
DTR
DCD
TXD- (B)
RxD- (B)
RTS+ (A)
CGND
TxD+ (A)
RxD+ (A)
SGND
CTS+
RTS- (B)
CTS- (B)
RxD- (B)
TxD+ (A)
CGND
RxD+ (A)
SGND
TxD- (B)
Data- (B)
CGND
Data+ (A)
SGND
140 Chapter 12 Specifications, Certifications, and Troubleshooting
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