ABB 500NMD11, EDS500 Series Operating

Managed Ethernet switch 500NMD11

EDS500 series - Ethernet & DSL switches

Application, characteristics and technical data have to be taken from the hardware data sheet:

500NMD11 Data sheet 1KGT 150 792

Operation

The compact modem 500NMD11 has one SHDSL wide area interface, one optical interface as SFP plug-in and four Ethernet interfaces. There are two serial interfaces for configuration or process interface (e.g.

to connect telecontrol units). A configurable alarm relais and an extension interface (e.g. to use the configuration stick) complete the device.

2-wire Cu

DSL 1

SHDSL-Interface

RS-232/

RS-485

RS-232

Console0

Tunnel CFG

Console1

Tunnel

Configuration and Monitoring

CFG

Intelligent Switch

(Layer 2 or 3)

8 1

6

7

4

5

8

Pin allocation Ethernet interface (RJ-45)

1

2

3

Pin assigned as data transmission device (MDI)

Tx+

Tx-

Rx+ assigned as network termination device

(MDI-X)

Rx+

Rx-

Tx+ n.c.

n.c.

Rxn.c.

n.c.

n.c.

n.c.

Txn.c.

n.c.

SFP Interfaces (Fo1)

All SFP interfaces are designed according to Small

Form-Factor Pluggable (INF-8074i).

WARNING

Only transceivers up to laser class 1 according to

EN 60825-1 are allowed to be used for the SFP interfaces.

1 2 3 4 5

WAN local LAN

Figure 1: 500NMD11 Block diagram

ADVICE

Any warranty claims can only extend to SFPs delivered by ABB.

Connections

Ethernet interfaces (Port1 - Port4)

Every Ethernet interface detects automatically whether the connected counterpart works as transmission or network termination device. This way both normal and crossover cables can be used (MDI/

MDI-X).

The Ethernet interface can operate at transmission rates of 10 or 100 Mbps, depending on the connected devices in half duplex or full duplex mode. The operation mode is detected and set automatically by the EDS500 devices. A manual configuration is possible.

DSL interface (X3)

The data transmission method SHDSL "Single-pair

High-speed Digital Subscriber Line" has been specified by the International Telecommunications Union

(ITU recommendation G.991.2) and  represents a modern, high performance, comfortable and secure communication method. SHDSL works with data rates from 192 kbps up to 5.696 Mbps on a copper pair in full duplex mode. EDS500 devices additionally use a proprietary extension of the SHDSL standard and can reach data rates of up to 15.000 Mbps. Wires with a diameter of 0.8 mm give a range of 13 km at 2.048

Mbps or 25 km at 192 kbps.

Pin allocation DSL interface (X3)

3 2 1 Pin Signal

1

2

3

Line A (DSL A)

Line B (DSL B)

Functional earthing and cable shield

ADVICE

The signal lines are short-circuit protected and may be connected while the module is powered and working.

Pin allocation serial interface RS-485 full duplex

(RJ-12)

RS-485 full duplex / 4-wire

Pin Signal

1

Direction

6 1

4

5

2

3

6

B (-)

B (-)

GND

A (+)

A (+)

-

Input

Output

Input

Output

ADVICE

The SHDSL interface is designed as a 2 wire interface. For an effective overvoltage protection it is mandatory to connect the functional earthing as well as the cable shield.

ADVICE

Any SHDSL port supports auto-crossover detection and correction, so signals A and B may be interchanged.

Serial Interfaces (Con0 - Con1)

The serial interfaces of the devices are signal compatible to RS-232. The connector is a RJ-12 female plug. The factory pre-sets are speed 57600 Baud, no parity, 1 stop bit, no flow control. On delivery, the management console can be accessed via the serial interface.

Pin allocation serial interface RS-232 (RJ-12)

6 1

5

6

3

4

1

2

RS-232 RS-232 PC SUB-D9

Pin SignalDirection Pin SignalDirection

DCD Output

CTS Output

1

8

DCD Input

CTS Input

RTS Input

GND -

RxD Output

TxD Input

7

5

2

3

RTS Output

GND -

RxD Input

TxD Output

Pin allocation serial interface RS-485 half duplex

(RJ-12)

RS-485 half duplex / 2-wire

Pin Signal

1

Direction

6 1

4

5

2

3

6

B (-)

GND

A (+)

bi-directional bi-directional

Power connector (X1)

The EDS500 devices are equipped with a wide range power supply for voltages between 24 and 60 Volts DC

(power consumption see device label). The connector is a 4-pin Phoenix plug with screw terminals.

Pin allocation power supply (X1)

Pin Signal

1 2 3 4

1

2

24-60 V DC

Functional earth (internally wired to pin 4)

3

4

GND

Functional earth (internally wired to pin 2)

ADVICE

Due to the internal overvoltage protection, interrupt any connection to ground of the device for the time of the measurement before you carry out isolation measurement. This includes the earthing of the hat rail as well as all shields of all transmission lines and supply feedings. RJ-12 plugs or RJ-45 plugs can establish earthing via the shield.

Extension interface (EXT)

The plug of the proprietary expansion bus is designed as USB type B but uses a manufacturer specific protocol.

The configuration parameters are stored directly on the device. In addition, a configuration stick can be connected to the expansion bus to save data externally, in example to exchange defective devices easily.

ADVICE

Danger of damaging the device

Do not connect any USB devices!

Alarm-Relay (X2)

The devices are equiped with a potential free alarm output (relay with isolated switchover contact). This output corresponds to a device alarm and is activated when the device looses the power supply or the alarm

LED is constantly on. The reason for the signalling of an alarm can be referenced in the system alarm table.

Pin allocation alarm output (X2)

1 2 3 4

Pin Signal

1 & 2 Normal state

1 & 3 Alarm state

4 Common contact (connected to 1)

The relay is designed for switching only safe low voltages.

WARNING

LED

L

S

Description Function

Ethernet connection off No connection green Link established flash Activity (send or receive)

Ethernet data rate off Data rate 10 Mbps orange Data rate 100

Mbps

During start-up all displays light up shortly for about

1 second. As soon as the start-up has been finalized successfully (about 30 seconds after switching on the device) the LED "Ready" switches to green.

Signaling

LED

Power

Ready

DSL Master DSL Master

DSL Link

Description Function

Voltage

Supply off Device is without power supply green Power supply switched on

Ready

DSL link off Hardware fault or booting green Device ready off DSL unit in slave mode green DSL unit in master mode off No active DSL link

DSL Activity DSL Activity

Fo Module

Fo Link

Fo Activity

SFP Module

SFP link

SFP activity green DSL link established off No activity on the

DSL interface green Data is transmitted via DSL off SFP not plugged green SFP plugged off no optical link active green Optical link established off No activity on the optical interface green Data is transmitted via the optical interface

Con DCD Con DCD

Con Activity Con activity

Alarm

Fo Alarm

Alarm

SFP Alarm off DCD inactive on

Con interface green DCD active off No activity on the

Con interface green Data is transmitted via Con off No alarm flash Warning or configuration error red off red alarm

No alarm

Alarm about the

SFP interface(s)

Device configuration

The 500NMD11 can be configured locally as well as from remote. In the following some methods are introduced, for a complete description please see

EDS500 Manual - Part 2: Functions (1KGT151021).

Configuration using a serial configuration cable

In delivery status all serial interfaces are in configuration mode to provide access to the command line. Using a serial configuration cable (500CAB06

1KGT038912R0001), the device can be connected to a serial port of a PC/notebook.

The default configuration for the serial connection is:

57600 Baud 8N1 (8 data bits, no parity, 1 stop bit), no hardware flow control.

IP based configuration, remote configuration

After establishing a network connection to the device and configuring IP addresses as required (i.e.

“the device can be pinged”), the following remote configuration features can be used:

•

Telnet

Telnet clients like HyperTerminal, PuTTY or telnet.exe (on the PC command line interface) can be used to establish a telnet session with the device. The IP address of the unit has to be used as Telnet target. Telnet access can be disabled by a configuration command.

•

SSH

Suitable SSH clients on the PC side are programs like Tera Term or PuTTY. The tar-get address is the device’s IP address. During the connection you will be prompted for authentication credentials. The default login name is edslogin , the password is empty when in delivery status. SSH access can be disabled by configuration.

•

Webserver

With the webserver activated (default setting) browsers like Firefox, Opera, Safari, Chrome or the Internet Explorer can be used to configure the devices using the web interface. To do so enter the device IP into the browser address field. The device will subsequently request authentication credentials. The default login name is edslogin , the password is empty when in delivery status. Webserver access can be disabled by a configuration command.

The command line interface

The command line of the 500NMD11 is similar to the

(DOS) command line known from the PC. All device properties can be set and shown here.

•

Commands are typed into the console, pressing

< { E n t e r } >

will start execution.

•

Commands can be abbreviated as soon as they are unambiguous, i.e.

< s h s y >

is equivalent to

< s h o w s y s t e m >

,

< s e s w p 1 n s > is equivalent to

< s e t s w i t c h p o r t 1 n o s h u t d o w n >

.

•

A command overview can be listed on every level by typing

< ? >

. Example:

< s h s y ? >

translates to

< s h o w s y s t e m ? >

and results in s n m p s n t p s s h s y s l o g t e m p e r a t u r e

being shown as command keywords to follow, i.e. one possible command is

< s h o w s y s t e m t e m p e r a t u r e >

.

•

There are two authentication levels on the command line: Login authentication and Enable authentication. Login authentication can be described as a read only mode and is accessible directly after establishing a serial connection with the PC. Enable authen-tication is required once you need to change system settings or show the complete system parameter set.

Enable authentication is reached by entering the

< e n a b l e >

command. Both authentication levels can be protected by a password, the respective commands are

< s e t l o g i n p a s s

{ s t r i n g 2 0 } >

and

< s e t e n a b l e p a s s

{ s t r i n g 2 0 } >

.

•

Configuration commands entered on the command line interface are stored in the running configuration of the device, which represents the current state of the system. To preserve this status after a reboot, the running configuration must be transferred to the startup configuration using the command

< w r i t e >

. During system startup all commands from the startup configuration are being executed and thus create the running configuration. When a configuration stick is attached to the device, executing the

< w r i t e > command results in the running configuration being copied not only to the startup configuration but also to the stick configuration (unless the stick is set to “read only”). During system startup with attached config stick, the stick configuration overwrites the startup configuration.

•

The current configuration (running configuration) can be displayed using the command

< s h o w r u n n i n g - c o n f i g >

(only with Enable authentication). The start configuration may be shown using

< s h o w s t a r t u p - c o n f i g >

.

When a config stick is attached, its content can be shown using

< s h o w s t i c k - c o n f i g >

.

Interface configuration

SHDSL interfaces

The DSL interfaces of the 500NMD11 work as pointto-point connections over two-wire copper lines.

One side needs to be configured as master, the other one as slave. The current master/ slave setting is indicated through the interface’s “Master” LED on the front panel and can be displayed using the command

< s h o w i n t e r f a c e { d s l 1 | d s l 2 } > respectively. To change the master / slave setting use

< s e t i n t e r f a c e { d s l 1 | d s l 2 } m o d e m a s t e r > achieved.

[dB]

35

30

25

20

15

10

5

and d s l 2 } m o d e s l a v e >

In delivery status, the speed of the DSL interfaces defaults to 192 kbps. However, depending on wire length, condition of the line and the desired signal quality, signif-icantly higher speed rates can be

0

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Figure 2: Signal quality with 0,8mm cable diameter, no additive noise

[km]

After activating interfaces on both sides of the line using the command

< s e t i n t e r f a c e { d s l 1 | d s l 2 } n o s h u t d o w n >

automatic connection establishment will be initiated (this setting is already activated when in delivery status). Depending on line length, line condition and speed settings, this procedure might need some time and several attempts before a successful connection can be established. The negotiation phase is signaled through the front panel

LEDs: the DSL activity LED is blinking while DSL link

LED is off.

Generally automatic speed negotiation is configured on the less accessible end of the DSL line (

< s e t i n t e r f a c e { d s l 1 | d s l 2 } s p e e d a u t o > or

< s e t i n t e r f a c e { d s l 1 | d s l 2 } s p e e d e x t - a u t o >

, see following table), while a fixed speed value is applied to the better reachable end of the line.

Speed: local fixed, remote auto

< s e t i n t e r f a c e { d s l 1 |

.

Signal quality (SHDSL.bis)

Local setting

192, 256, 512,

768, 1024, 1280,

1536, 1792, 2048,

2304

192... 2304, step size 8 kbps

192 kbps

256 kbps

512 kbps

768 kbps

1024 kbps

1536 kbps

2048 kbps

3072 kbps

4096 kbps

5696 kbps

8192 kbps

10240 kbps

11400 kbps

Remote setting auto

Speed: local fixed remote fixed

Speed: local fixed, remote ext-auto

Speed: local fixed, remote fixed

Table 1:

192, 256, 512,

768, 1024, 1280,

1536, 1792, 2048,

2304, 2560, 3072,

3584, 4096,

4608, 5120, 5696

192...11400, step size 8 kbps

192... 2304, step size 8 kbps ext-auto

192...11400, step size 8 kbps

Speed settings for the DSL interfaces

With matching interface speed configuration and after successful connection negotiation (signaled through the DSL link LEDs) the status of the connection

(including the signal quality) can be shown using

the command

< s h o w i n t e r f a c e { d s l 1 | d s l 2 } >

.

ADVICE

•

The DSL link state can be associated with the alarm relay: (

< s e t i n t e r f a c e { d s l 1 | d s l 2 } a l a r m - i f - d o w n >

).

•

Upon detection of poor signal quality on a DSL interface, the alarm relay can be set, before a complete connection loss occurs ( i n t e r f a c e { d s l 1 | d s l 2 } s q t h r e s h o l d { t h r e s h o l d } >

).

•

The DSL link state can be monitored using the

IEC 60870-5-104 protocol.

•

The DSL link state and the signal quality can be communicated and moni-tored using the SNMP protocol.

< s e t

Ethernet Interfaces

The Fast Ethernet interfaces (IEEE802.3 compliant,

10Base-T/100BaseTX) support auto MDIX, therefore terminal devices and network equipment can be connected both with regular and crossover cables.

Cable connection uses conventional 8P8C connectors

(RJ45). Auto negotiation as well as static speed and duplex settings are supported. In delivery state all interfaces are activated and auto negotiation is con-figured. If you need to configure, for instance, a 10 Mbps half duplex connection for port 2, the following commands must be issued:

< s e t s w i t c h p o r t 2 d u p l e x h a l f >

,

< s e t s w i t c h p o r t 2 s p e e d 1 0 >

and

< s e t s w i t c h p o r t 2 n o s h u t d o w n >

.

•

•

< s e t s w i t c h p o r t 2 t r u n k - v l a n 1 0 >

< s e t s w i t c h p o r t 2 t r u n k - v l a n 2 0 >

, configures port 2 as trunk port for VLANs 10 and 20

(secure trunk).

< s e t s w i t c h p o r t 3 t r u n k - v l a n a l l > configures port 3 as trunk for all VLANs.

System settings

Device IP Address

In delivery state the devices have following IP configuration:

I P A d d r e s s 1 0 . 0 . 0 . 2

I P S u b n e t M a s k 2 5 5 . 0 . 0 . 0

I P G a t e w a y 1 0 . 0 . 0 . 1

These parameters can be changed by commands listed below:

< s e t s y s t e m i p { I P a d d r e s s } >

< s e t s y s t e m s u b n e t m a s k { s u b n e t m a s k } >

< s e t s y s t e m g a t e w a y { I P a d d r e s s } >

System Identification Settings

For an easier identification of the devices several description parameters can be set:

•

Hostname: 

< s e t s y s t e m h o s t n a m e

{ n a m e } >

•

Contact:

< s e t s y s t e m c o n t a c t

{ c o n t a c t } >

•

Location:

< s e t s y s t e m l o c a t i o n

{ l o c a t i o n } >

•

Description:

< s e t s y s t e m d e s c r i p t i o n

{ t e x t } >

Optical Interfaces

The optical interfaces are realized as SFP module slots

(Small Formfactor Plugga-ble, INF-8074i) und can be equipped with different transceivers. The speed is fixed to 100 Mbps, the duplex setting can be changed

(full duplex, half duplex). Delivery configuration is 100

Mbps, full duplex.

ADVICE

When using a managed SFP unit, parameters of the optical interface like signal quality or temperature can be displayed and monitored.

VLAN configuration

The Ethernet, DSL and optical interfaces of the

EDS500 devices support virtual LANs complying with the IEEE 802.1Q standard. Thus it is possible to define logical sub-nets for different applications (for instance, one subnet for RTU communication, another subnet for voice-over-IP). The interfaces can be configured as trunk or access ports. In default state the DSL interfaces are configured as trunk.

Example:

• < s e t s w i t c h p o r t 1 a c c e s s - v l a n 1 0 > configures port 1 as access port for VLAN 10.

Device monitoring

For central processing of device syslog messages a syslog server can be configured with the following command:

< s e t s y s t e m s y s l o g s e r v e r { I P a d d r e s s } { { 0 - 7 } | a b b - s e c u r i t y e v e n t s } >

In order to provide “real” timestamps in the event log and the syslog messages a SNTP time server can be configured:

< s e t s y s t e m s n t p s e r v e r { I P a d d r e s s } >

< s e t s y s t e m s n t p t i m e z o n e { c e t | c e t - c e s t | e e t | g m t } >

Specifying a SNMP trap server:

< s e t s y s t e m s n m p t r a p - t a r g e t

{ I P a d d r e s s } [ { v 1 | v 2 c } ]

[ { c o m m u n i t y } ] >

Firmware Update

The firmware is updated by transferring a firmware image to the device. It can be downloaded with the help of the command line (Telnet, SSH, serial terminal) as well as with the help of the integrated web interface, scripts or a management program. It is mandatory that there is an IP connection to the device.

ADVICE

During a firmware update the power supply must not be interrupted or a reboot must not be triggered as this could leave the device in an inoperable state.

WARNING

An easy to access manual interrupter has to be installed into the power feed of the modem to be able to disconnect the modem from the power supply in the case of an emergency.

Reset Button

Pressing the reset button restarts the device and loads the saved configuration (startup-config or stickconfig). As a protection against accidental triggering, the reset button is in a concealed place and be reached with a pointed tool (e.g. paper clip).

ADVICE

If the running configuration (= running-config) does not match the saved configuration (= startupconfig) it is lost with the restart.

ADVICE

All established communication connections will be lost during restart.

WARNING

The DC power supply has to fulfil the following requirements in order to supply appropriate fire protection:

•

Limited power source according to IEC 60950-1 or PS2 classified according to IEC 62368-1

•

Short-circuit current < 8A

WARNING

The device shall be powered off while accessing any of the connectors X1 (power connector) or X2

(alarm relay). Any other connectors (e.g. Ethernet,

RS-232, RS-485 or DSL) are hot-pluggable while the device is operating.

WARNING

No plug shall be freely accessible in normal operation due to safety reasons.

Safety

DANGER

Interrupt the power supply before mounting or dismounting the device.

Figure 3: 500NMD11 Front plate

Figure 4: 500NMD11 Label

ABB AG

Power Grids

P.O. Box 10 03 51

68128 Mannheim, Germany

Tel. +49 621 381-3000 www.abb.com/remote-terminal-units

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