Westermo RFIR-xxx - Manual (Page 16)

16 6641-22810
Ethernet TX
Electrical specification
IEEE std 802.3. 2005 Edition
Data rate 10 Mbit/s, 100 Mbit/s, 1000 Mbit/s, manual or auto
Duplex Full or half, manual or auto
Circuit type TNV-1
Transmission range Up to 150 m with CAT5e cable or better
Isolation to All other
Connection RJ-45 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 Yes
* 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.
+DC1 +DC2 COM COM
RSTP FRNT
VPN
ON
DC1 DC2
1 2
1
1
10/100/1000
10/100/1000
10/100 Base-TX
POWER
CONSOLE
IO
2 3 4
5 6 7 8 2 3 4
1 5 6 7 8 2 3 4
Position Direction* Description
1 In/Out BI_DA+
2 In/Out BI_DA–
3 In/Out BI_DB+
4 In/Out BI_DC+
5 In/Out BI_DC-
6 In/Out BI_DB-
7 In/Out BI_DD+
8 In/Out BI_DD-
Shield In/Out Connected to
Functional earth
* Direction relative this unit.
10/100/1000 Mbit/s, TX ports