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10/100BaseT(X) Ethernet Port Connection
The 10/100BaseT(X) Ethernet ports located on CSM-400 are used to
connect to Ethernet-enabled devices.
Below, we show pinouts for both MDI (NIC-type) ports and MDI-X
(HUB/Switch-type) ports, and also show cable-wiring diagrams for
straight-through and crossover Ethernet cables.
10/100BaseT(X) RJ45 Pinouts
MDI Port Pinouts
MDI-X Port Pinouts
8-pin RJ45
Pin
Signal
1
Tx+
2
Tx-
3
Rx+
6
Rx-
Pin
Signal
1
Rx+
2
Rx-
3
Tx+
6
Tx-
RJ45 (8-pin) to RJ45 (8-pin) Straight-Through Cable Wiring
RJ45 (8-pin) to RJ45 (8-pin) Crossover Cable Wiring
100BaseFX Fiber Port Connection
The concept behind the fiber port and cable is quite 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 transmit data
from device II to device I, for full-duplex transmission.
All you need to remember is 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 are making 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).