Allied Telesis AT-2973T User Manual

Chapter 2: Installing the Hardware

38

After you install the adapter in your PC, attach the system to a compatible 
link partner or an IEEE 802.3z compliant Gigabit Ethernet switch. 

The AT-2973SX adapter has two fiber optic connectors, each with a 
transmit and receive connector. This adapter requires a fiber optic cable. 
For cable specifications, see the AT-2973SX adapter data sheet.

For information about cleaning a fiber optic connector, see Appendix 
B “Cleaning Fiber Optic Connectors” on page 171.

The AT-2973T adapter has two twisted-pair connectors and the 
AT-2973T/4 adapter has four twisted-pair connectors. Both adapters 
require twisted-pair cables. For pin signals and pinout information, see 
“10/100/1000Base-T Twisted-Pair Port Connectors” on page 168.

To connect the network cables to an AT-2973SX, AT-2973T, or 
AT-2973T/4 adapter, do the following: 

The fiber optic ports contain a Class 1 laser device. When the ports 
are disconnected, always cover them with the provided plug. 
Exposed ports may cause skin or eye damage

. 



 L4

1. Connect one end of the cable to the adapter. 

–

 For the AT-2973SX adapter, use a fiber optic 
cable.

–

 For the AT-2973T and AT-2973T/4 adapters, use 
a twisted-pair cable.

2. For the AT-2973SX adapter, connect the other end of the cable to the 

appropriate Ethernet fiber optic port. For the AT-2973T and 
AT-2973T/4 adapters, connect the other end of the cable to another 
twisted pair port.

After the cable is properly connected at both ends, the adapter port 
LEDs should be functional. See “AT-2973SX Adapter Physical 
Description” on page 17, “AT-2973T Adapter Physical Description” 
on page 18, or “AT-2973T/4 Adapter Physical Description” on 
page 21 for a description of LED operation for each adapter model.