Westermo EDW-100 - Manual (Page 24)

24 6616-2203
* To minimise the risk of interference, a shielded cable is recommended when the cable is located inside 3 m
boundary to the rails and connected to this port.
The cable shield should be properly connected (360°) to an earthing point within 1 m from this port. This earthing
point should have a low impedance connection to the conductive enclosure of the apparatus cabinet, or similar,
where the unit is built-in. This conductive enclosure should be connected to the earthing system of an installation
and may be directly connected to the protective earth.
RS-232
Electrical specification
EIA RS-232
Data rate 300 bit/s – 115.2 kbit/s
Data format 7 or 8 data bits, Odd, even or none parity, 1 or 2 stop bits.
Protocol Transparent, optimised by packing algorithm
Retiming Not applicable
Circuit type SELV
Transmission range 15 m
Isolation to Power 2 kV
Ethernet 1; 1.5 kV
rms
Connection 9-pin D-sub male (DTE)
Shielded cable Not required, except when installed in Railway applications as
signalling and telecommunications apparatus and located close to
rails*
Conductive housing Isolated to all other circuits
Number of ports 1
Ethernet
Electrical specification
IEEE std 802.3. 2000 Edition
Data rate 10 Mbit/s or 100 Mbit/s, auto-negotiated or manually set by
DIP-switches
Protocol UDP, TCP, ICMP, HTTP and ARP
Duplex Full- or half duplex, auto-negotiated or manually set by DIP-
switches
Circuit type TNV-1
Transmission range 100 m
Isolation to Power 2 kV
rms
RS-232 1.5 kV
rms
RS-422/485 1.5 kV
rms
Connection RJ-45 shielded, auto MDI/MDI-X
Shielded cable Not required, except when installed in Railway applications as
signalling and telecommunications apparatus and located close
to rails*
Conductive housing Isolated to all other circuits