ABB EDS500 Series Operating Instruction

Operating instruction Operating instruction
Managed Ethernet switch 500NMD20 Managed Ethernet switch 500NMD20
EDS500 series - Ethernet & DSL switches EDS500 series - Ethernet & DSL switches
Application, characteristics and technical data have to
be taken from the hardware data sheet:
500NMD20 Data sheet 1KGT 150 894
Operation
The compact modem 500NMD20 has two 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.
Figure 1: 500NMD20 Blockschaltbild
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).
RS-232/
RS-485
Console0
Tunnel CFG Tunnel
Configuration
and Monitoring
Intelligent Switch
(Layer 2 or 3)
1 2 3 4
WAN WAN
RS-232
Console1
CFG
5 6
local LAN
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.
Pin allocation Ethernet interface (RJ-45)
Pin assigned as data
transmission
device (MDI)
1 Tx+
2 Tx-
3 Rx+
8 1
4 n.c.
5 n.c.
6 Rx-
7 n.c.
8 n.c.
SFP Interfaces (Fo1 - Fo2)
All SFP interfaces are designed according to Small
Form-Factor Pluggable (INF-8074i).
W A R N I N G
Only transceivers up to laser class 1 according to
EN 60825-1 are allowed to be used for the SFP
interfaces.
A D V I C E
Any warranty claims can only extend to SFPs
delivered by ABB.
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.
assigned as
network termi-
nation device
(MDI-X)
Rx+
Rx-
Tx+
n.c.
n.c.
Tx-
n.c.
n.c.