User Documentation

- 10 -
RJ45 (8-pin) to RJ45 (8-pin) Straight-Through Cable Wiring
RJ45 (8-pin) to RJ45 (8-pin) Cross-Over Cable Wiring
100/1000BaseSFP (mini-GBIC) Fiber Port
One of the Gigabit Ethernet ports on the IE-SW-BL05(T)-4GT-1GS is a
SFP slot, which requires 100M or 1G mini-GBIC fiber transceivers to
work properly. Weidmüller offers several SFP-transceiver models for
various distance requirements.
The concept behind the LC port and cable is straightforward. Suppose
you are connecting devices I and II. Unlike electrical signals, optical
signals do not require a circuit in order to transmit data. Consequently,
one of the optical lines is used to transmit data from device I to device II,
and the other optical line is used to transmit data from device II to device
I, for full-duplex transmission.
Remember to connect the Tx (transmit) port of device I to the Rx
(receive) port of device II, and the Rx (receive) port of device I to the Tx
(transmit) port of device II. If you make your own cable, we suggest
labeling the two sides of the same line with the same letter (A-to-A and
B-to-B, as shown below, or A1-to-A2 and B1-to-B2).
LC-Port Pinouts
LC-Port to LC-Port Cable Wiring