Cabletron Systems FOMIM-32 Manual De Usuario

Chapter 2: Network Requirements and Installation

Each fiber optic link consists of two strands of fiber optic cabling: the 
transmit (TX) and the receive (RX). The transmit strand from a module 
port connects to the receive port of a fiber optic Ethernet device at the 
other end of the segment. The receive strand of the applicable port on the 
module connects to the transmit port of the fiber optic Ethernet device.

Cabletron Systems recommends labeling fiber optic cables to indicate 
receive and transmit ends. Many cables are prelabeled, providing 
matching labels or tapes at both ends of each strand of cable.

1. Remove the protective plastic covers from the fiber optic ports on the 

applicable port on the module, and from the ends of the connectors on 
each fiber strand.

2. Attach one fiber to the applicable receive port on the module. Insert 

the ST connector into the port with the alignment slot on the connector 
clockwise to lock it down.

3. Attach the other fiber of the pair to the applicable transmit port on the 

module. Use the same procedure for insertion of the ST connector.

Do not touch the ends of the fiber optic strands, and do not let 
the ends come in contact with dust, dirt, or other contaminants. 
Contamination of the ends can cause problems in data 
transmissions. If the ends become contaminated, clean them 
with denatured alcohol using a soft, clean, lint free cloth.