User Manual

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1000BaseT(X) Ethernet Port Connection
1000BaseT(X) data is transmitted on differential TRD+/- signal pairs over
copper wires. When connected to a 1000 Mbps Ethernet port, the pinouts
and cable wiring diagrams for both the MDI (NIC-type) and MDI-X
(HUB/switch-type) ports for both straight-through and crossover
Ethernet cables are:
MDI/MDI-X Port Pinouts
Pin
Signal
1
TRD (0) +
2
TRD (0) -
3
TRD (1) +
4
TRD (2) +
5
TRD (2) -
6
TRD (1) -
7
TRD (3) +
8
TRD (3) -
1000BaseSFP Fiber Port Connection
The Gigabit Ethernet ports on the IMC-21GA are 1000BaseSFP Fiber ports,
which require using Gigabit mini-GBIC fiber transceivers to work
properly.
The concept behind the LC port and cable is straightforward. Suppose you
are connecting devices I and II: contrary to 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 that you label
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