Cisco Systems 3750-X Switch User Manual

Xtreme/104 Isolated User's Manual
Connect Tech Inc.
Industrial Strength Communications
Xtreme/104 Isolated
12 Port, Electrically Isolated Serial Communications Adapter
User’s Manual
Connect Tech Inc
42 Arrow Road
Guelph, Ontario
N1K 1S6
Tel: 519-836-1291
800-426-8979
Fax: 519-836-4878
Email:sales@connecttech.com
support@connecttech.com
Web: www.connecttech.com
CTIM-00025, Revision 1.02, November 2005
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Xtreme/104 Isolated User's Manual
Limited Lifetime Warranty
Connect Tech Inc. provides a Lifetime Warranty for all Connect Tech Inc. products. Should this
product, in Connect Tech Inc.'s opinion, fail to be in good working order during the warranty
period, Connect Tech Inc. will, at its option, repair or replace this product at no charge, provided
that the product has not been subjected to abuse, misuse, accident, disaster or non Connect Tech
Inc. authorized modification or repair.
You may obtain warranty service by delivering this product to an authorized Connect Tech Inc.
business partner or to Connect Tech Inc. along with proof of purchase. Product returned to
Connect Tech Inc. must be pre-authorized by Connect Tech Inc. With an RMA (Return Material
Authorization) number marked on the outside of the package and sent prepaid, insured and
packaged for safe shipment. Connect Tech Inc. will return this product by prepaid ground
shipment service.
The Connect Tech Inc. Lifetime Warranty is defined as the serviceable life of the product. This
is defined as the period during which all components are available. Should the product prove to
be irreparable, Connect Tech Inc. reserves the right to substitute an equivalent product if
available or to retract Life Time Warranty if no replacement is available.
The above warranty is the only warranty authorized by Connect Tech Inc. Under no
circumstances will Connect Tech Inc. be liable in any way for any damages, including any lost
profits, lost savings or other incidental or consequential damages arising out of the use of, or
inability to use, such product.
The latest manuals, installation guides and drivers are located on the Connect Tech website.
Please visit the download zone for more information:
http://www.connecttech.com/asp/Support/DownloadZone.asp
If you have any questions, please contact Connect Tech Customer Support.
Email: support@connecttech.com
Phone: 1-800-426-8979 (within North America)
Outside North America: 1-519-836-1291
Fax: 1-519-836-4878
Copyright Notice
The information contained in this document is subject to change without notice. Connect Tech
shall not be liable for errors contained herein or for incidental consequential damages in
connection with the furnishing, performance, or use of this material. This document contains
proprietary information that is protected by copyright. All rights are reserved. No part of this
document may be photocopied, reproduced, or translated to another language without the prior
written consent of Connect Tech, Inc.
Copyright © 2005 by Connect Tech, Inc.
Trademark Acknowledgment
Connect Tech, Inc. acknowledges all trademarks, registered trademarks and/or copyrights
referred to in this document as the property of their respective owners.
Not listing all possible trademarks or copyright acknowledgments does not constitute a lack of
acknowledgment to the rightful owners of the trademarks and copyrights mentioned in this
document.
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Table of Contents
Limited Lifetime Warranty ...................................................................... ii
Copyright Notice...................................................................................... ii
Trademark Acknowledgment................................................................... ii
Table of Contents.................................................................................... iii
Figures .................................................................................................... iii
Tables...................................................................................................... iii
Product Overview .....................................................................................1
Electrical Isolation ....................................................................................1
Hardware Installation................................................................................3
Port Addresses.................................................................................3
Status Port Addresses ......................................................................3
Custom Port Addresses....................................................................3
Interrupt Selection ...........................................................................5
Baud Rate Selection ........................................................................5
Software Installation .................................................................................6
Specifications............................................................................................6
Operating Environment ...................................................................6
Power Requirements........................................................................6
PC Bus Interface..............................................................................6
Communications..............................................................................6
UARTs ...................................................................................6
RS-232.............................................................................................7
RS-422/485......................................................................................7
Control Signals ................................................................................7
Electrical Isolation...........................................................................7
Dimensions......................................................................................7
Xtreme/104 Isolated Main PCB.......................................................7
Daughter Board ...............................................................................7
Connectors/Interface........................................................................7
RS-232/422/485 ports......................................................................7
RS-232 ports....................................................................................7
Cabling ............................................................................................7
Connectors/Pinouts..........................................................................8
RS-232/RS-422/485 Interfaces .................................................................9
Electrical Interface Selection...........................................................9
Full Duplex Mode (four wire) ........................................................9
Half Duplex RS-422/485 (two wire) ...............................................9
Multi-drop Mode (four wire) ...........................................................9
Line Bias and Termination ..............................................................9
Figures
Figure 1: Xtreme/104 Isolated 12 port serial adapter ..................................................................................... 2
Figure 2: Port Control, Group A (ports 1 to 4) ............................................................................................... 4
Figure 3: Port Control, Group B (ports 5 to 8) ............................................................................................... 4
Figure 4: Jumpers JG12, JG13 and JG14 ...................................................................................................... 4
Figure 5: Address and IRQ Setup, JG3 .......................................................................................................... 5
Figure 6: IRQ Selection, JG1 and JG2 ........................................................................................................... 5
Figure 7: Pinouts ............................................................................................................................................ 8
Figure 8: Common Jumper Configurations, Example 1 ............................................................................... 11
Figure 9: Common Jumper Configurations, Example 2 ............................................................................... 12
Tables
Table 1: Port Address Settings ....................................................................................................................... 3
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Xtreme/104 Isolated User's Manual
Product Overview
The Xtreme/104 Isolated adapters are high density, high performance, 12 port serial adapters
that fully comply with PC/104 form factor specifications.
Your Xtreme/104 Isolated product consists of the following components:
●
Xtreme/104 electrically isolated adapter
●
Xtreme/104 Isolated Windows 98/Me, Windows CE/CE .NET, XP/XP Embedded,
Windows 2000 and QNX 4.X device drivers.
Xtreme/104 Isolated adapters include unique features such as:
●
Twelve asynchronous I/O ports
• Eight selectable RS-232/422/485 ports
• Four dedicated RS-232 ports
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Support for all three RS-422/485 modes
• Full duplex (four wire)
• Half duplex (two wire, with automatic data direction control)
• Multi-drop (four wire)
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Electrical isolation on each port using Analog Device’s iCoupler® technology, providing
up to 1 kV AC peak to peak of protection
●
Each port is electrically isolated from one another
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Data communication speeds up to 460.8 Kbps (RS-422/485) and 115.2 Kbps (RS-232)
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16C2850 dual UARTs control each port providing 128 bytes of TxD/RxD FIFO buffers
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Eight jumper selectable I/O address ranges
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Driver support for Linux, QNX, Solaris, SCO Unix, Windows 98/Me, Windows CE/CE
.NET, Windows XP/XP Embedded and Windows NT/2000
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Space saving, 12-port design
Electrical Isolation
The Xtreme/104 Isolated uses electrical isolator technologies to provide 1.0 kV AC peak to peak
isolation between each port and also between each port and your system. However there are
some considerations to note:
1.
2.
3.
4.
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Isolation can degrade if the board is subjected to high humidity, especially conditions that
are right for condensation to occur.
Isolation can degrade if airborne dust is allowed to accumulate on the surface of the board.
An electrical shock hazard could exist depending on what equipment is connected to the
Xtreme/104 Isolated. Under these circumstances the wiring and/or cabling leading to the
serial port connections may have high voltages on them. You must use appropriately
insulated cables in these situations.
Please contact your Connect Tech Technical Support Specialist for any questions related to
the application of optical isolation.
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Figure 1: Xtreme/104 Isolated 12 port serial adapter
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Hardware Installation
Port Addresses
Port addresses are configured with the jumper block JG3 on the Xtreme/104 Isolated adapter.
Use jumpers A, B, and C to select a range of port addresses for the ports. Please refer to Figure
5 for positions.
Status Port Addresses
Some operating system device drivers can utilize an Interrupt Status Port, for example, Linux.
This will improve your Xtreme/104 Isolated’s performance. The Xtreme/104 Isolated offers a
status port and this port is enabled and disabled using jumper D on jumper block JG3.
Please refer to Table 1 for a list of supported status port addresses.
Technical Tip:
Please make certain that the Status Port Enable jumper is disabled if
your application is not using the Status Port. This eliminates the
possibility of an address conflict with another device in your system.
Custom Port Addresses
If you require specific port addresses not listed in Table 1 please contact Connect Tech
Technical Support for further information.
Table 1: Port Address Settings
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Figure 2: Port Control, Group A (ports 1 to 4)
Figure 3: Port Control, Group B (ports 5 to 8)
Figure 4: Jumpers JG12, JG13 and JG14
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Interrupt Selection
You can configure the interrupt request lines (IRQ) with the jumper blocks JG1 and JG2 on the
Xtreme/104 Isolated adapter. (Please refer to Figure 6.) You can configure the board to use
three, four, five or six interrupts; or configure all ports to share one interrupt.
Baud Rate Selection
The Xtreme/104 Isolated is capable of baud rates up to 460.8 Kbps (4X oscillator) or 115.2 Kbps
(1X oscillator) depending on whether a jumper block is installed across position JG3-E. (Please
refer to Figure 5.)
Custom baud rates are also available. Contact Connect Tech Inc. for further details about our
Custom Product Program.
Figure 5: Address and IRQ Setup, JG3
Figure 6: IRQ Selection, JG1 and JG2
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Software Installation
Xtreme/104 Isolated adapters are standard multi-port serial adapters that utilize 16C2850
UARTs. In many cases, users have software that will interface directly to the Xtreme/104
Isolated adapters. Many operating systems come with a driver to control access to multiple 8250
style UARTs. Xtreme/104 Isolated adapters currently have device drivers for the following
operating systems:
●
●
●
●
●
●
●
●
●
●
Linux
QNX
SCO Unix/Openserver
Windows 2000
Windows 98/Me
Windows CE
Windows CE .NET
Windows NT
Windows XP
Windows XP Embedded
The latest manuals, installation guides and drivers are located on the Connect Tech website.
Please visit the download zone for more information:
http://www.connecttech.com/asp/Support/Download Zone.asp
If you have any questions, please contact Connect Tech Customer Support.
Email: support@connecttech.com
Phone: 1-800-426-8979 (within North America)
Outside North America: 1-519-836-1291
Fax: 1-519-836-4878
Specifications
Operating Environment
●
Storage temperature:
●
Operating temperature:
• -40° C to 70° C
• -40° F to 158° F
Humidity: 0 to 90% relative humidity, non-condensing
●
-40° C to 150° C
-40° F to 302° F
Power Requirements
●
+5 V DC
500mA (typical), 1A (max)
PC Bus Interface
●
●
Base address for UARTs is jumper selectable. Each UART requires 8 I/O addresses,
96 I/O addresses required
One PC/104 16-bit expansion connector
Communications
UARTs
●
XR16C2850 dual UART communication controllers
●
On chip 128 byte TxD and RxD FIFO buffers per port
●
Automatic RTS/CTS (Hardware) flow control
●
Automatic XON/XOFF (Software) flow control
●
Compatible with 16550 style software drivers
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RS-232
●
●
Programmable baud rate generator - up to 115.2 Kbps on all dedicated RS-232 ports
230.4 Kbps on all switchable ports
RS-422/485
●
●
●
●
●
●
Programmable baud rate generator - up to 460.8 Kbps on all RS-422/485 ports
Full duplex (four wire)
Half duplex (two wire)
Multi-drop (four wire)
Jumper selectable Automatic direction control for two-wire half duplex
Jumper selectable RxD/TxD line/bias termination resistors
Control Signals
●
●
RS-232
RS-422/485
TxD; RxD; RTS; CTS, ISOGND
TxD±; RTS±; CTS±; RxD±, ISOGND
Electrical Isolation
●
1.0 kV AC peak to peak on every signal of every port
Dimensions
Xtreme/104 Isolated Main PCB
●
●
Length: 10.10 cm (3.55 inches) – includes connectors
Width: 9.60 cm (3.78 inches)
Daughter Board
●
●
Length: 5.80 cm (2.27 inches)
Width: 5.50 cm (2.18 inches)
Height is fully compliant with PC/104 Specification 2.3
Connectors/Interface
RS-232/422/485 ports
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Ten pin right angle 2mm connectors
RS-232 ports
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Six pin right angle 2mm connectors
(Please refer to Figure 7 for pinouts)
Cabling
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304 mm DB-9 male cables
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Xtreme/104 Isolated User's Manual
Connectors/Pinouts
Connect Tech recommends using the following mating connectors for your Xtreme/104 Isolated
product:
●
●
●
10 pin:
Hirose part number
DigiKey part number
6 pin:
Hirose part number
DigiKey part number
Crimping sockets:
DF11-10DS-2C
H2023-ND
DF11-6DS-2C
H2021-ND
DF11-2428SCA
Individual wire assemblies for the DF11 series can be found in DigiKey’s online
catalogue at www.digikey.com
Figure 7: Pinouts
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RS-232/RS-422/485 Interfaces
Electrical Interface Selection
The Xtreme/104 Isolated adapter provides jumper selectable RS-232 and RS-422/485 electrical
interfaces on eight of its 12 ports.
Position D on jumper blocks J1 through J11 determines the individual electrical interfaces for
the ports. Group “A” ports are controlled by jumper blocks J4 through J7: J4 for Port 1, J5 for
Port 2, J6 for Port 3 and J7 for Port 4. Jumper blocks J8 through J11 determine the electrical
interfaces for the “B” group of ports: J8 for Port 5, J9 for Port 6, J10 for Port 7 and J11 for Port
8. Jumpers installed across position D on any of these jumper blocks enable the RS-232 interface
for that port; otherwise the RS-422/485 interface will apply. (Please refer to Figure 9 for
examples of various electrical interface selections.)
Full Duplex Mode (four wire)
By making sure that there are no jumpers on positions B and C of jumper blocks J4 to J11 you
can run the individual RS-422/485 ports in full duplex mode. In this mode, TxD & RxD are
active all the time. This mode is typically used in point to point situations much like RS-232.
(Please refer to Figure 2 and Figure 3.)
Half Duplex RS-422/485 (two wire)
By jumpering positions B and C of jumper blocks J4 to J11, along with the corresponding
position on JG12, you can run the individual RS-422/485 ports in half duplex mode. In this
mode your Xtreme/104 Isolated adapter controls the transmitter and receiver circuits. RTS is
turned on prior to and during transmission to enable the transmit driver and disable the receiver.
RTS is turned off when not transmitting to disable the transmit driver (tri-stated) and enable the
receiver. The Xtreme/104 Isolated adapter is responsible for timing the RTS toggle. (Please refer
to Figure 2 and Figure 3.)
Multi-drop Mode (four wire)
Placing a jumper on position B of jumper blocks J4 to J11 and on the corresponding Auto-enable
on JG12, allows you to run the individual RS-422/485 ports in multi-drop mode. In this mode
the TxD line driver is enabled only when data is transmitted and RxD is enabled all the time.
(Please refer to Figure 2 and Figure 3.)
Line Bias and Termination
The RS-422/485 ports of the Xtreme Isolated adapter feature jumper selectable line bias and
termination resistors across RxD+/- and jumper selectable 150 Ohm termination resistors across
TxD+/-.
Termination resistors are installed to improve the electrical performance of the RS-485
network. RS-485 networks are always wired in a daisy chain, from point-to-point-to-point and
so on. Termination resistors are installed at the most extreme ends of that network; they can not
be installed in the middle of the network. No more than two termination resistors can reside in
the network. Termination resistors are useful in the following situations:
●
●
●
Where long cabling 30m (100ft) or greater is used.
Where the cable is of poor quality.
When the application is using a high baud rate, 115.2 Kbps or greater.
For short point-to-point RS-485 networks, termination resistors are not usually required. While
this may reduce power consumption of your adapter, be aware that you may risk poor or
intermittent communications without the termination resistors.
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Xtreme/104 Isolated User's Manual
To install a termination resistor across TxD+/- on your Xtreme Isolated adapter, install the
appropriate jumper for a given serial port. (Please refer to Figure 2 and Figure 3.)
Bias and Termination resistors are applied across the RxD+/- pins. The bias resistors provide
a valid differential voltage across the RxD+/- pins when there is no voltage applied across the
RxD+/- input. The termination resistor has the same uses and the TxD+/- terminator as above.
The RxD+/- bias and termination resistors are used whenever your application requires the
following:
●
●
A terminator resistor across RxD+/The Xtreme serial port is configured as the master in a 2-wire (Half Duplex)
multi-drop network.
To install a bias and termination resistor across RxD+/- on your Xtreme/104 Isolated adapter
install the appropriate jumpers, a total of two, for a given serial port. (Please refer to Figure 2
and Figure 3.)
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Figure 8: Common Jumper Configurations, Example 1
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Figure 9: Common Jumper Configurations, Example 2
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