Moxa EDS-518A-MM-SC [13/17] Attention

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100BaseFx Ethernet Port Connection

The concept behind the SC/ST port and cable is quite straightforward.

Suppose you are connecting devices I and II. As opposed 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 by the following illustration, or A1-to-A2

and B1-to-B2).

SC-Port Pinouts

SC-Port to SC-Port Cable Wiring

ST-Port Pinouts

ST-Port to ST-Port Cable Wiring

ATTENTION

This is a Class 1 Laser/LED product. To prevent damage to your

eyes, do not stare directly into the laser beam.