Westermo RFIR-127-F4G-T7G-DC User Manual page 16

10/100(/1000) Mbit/s, TX ports
Ethernet TX
Electrical specification
Data rate
Duplex
Circuit type
Transmission range
Isolation to
Connection
Shielded cable
Conductive housing
* NOTE! Railway installation close to the rails.
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 functional
earth. Refer also to "Safety" section.
10/100/1000 Mbit/s, TX
Position Direction*
1 In/Out
2 In/Out
3 In/Out
4 In/Out
5 In/Out
6 In/Out
7 In/Out
8 In/Out
Shield In/Out
* Direction relative this unit.
16
IEEE std 802.3. 2005 Edition
10 Mbit/s, 100 Mbit/s, (1000 Mbit/s), manual or auto
Full or half, manual or auto
TNV-1
Up to 150 m with CAT5e cable or better
All other
RJ-45 auto MDI/MDI-X
Not required, except when installed in Railway applications as
signalling and telecommunications apparatus and located close
to rails*
Yes
Description
BI_DA+
BI_DA–
BI_DB+
BI_DC+
BI_DC-
BI_DB-
BI_DD+
BI_DD-
Connected to
Functional earth
10/100 Mbit/s, TX
Position Direction*
1 In/Out
2 In/Out
3 In/Out
4 In/Out
5 In/Out
6 In/Out
7 In/Out
8 In/Out
Shield In/Out
* Direction relative this unit.
Description
TD+
TD–
RD+
Not connected
Not connected
RD-
Not connected
Not connected
Connected to
Functional earth
6641-22810