3com 2500 Quick Setup Guide
D-8
A
PPENDIX
D: FDDI S
TANDARDS
To install the cables into a single mode keyed
transceiver:
transceiver:
1
Remove the A, B, or S key from the connector
housing. See
housing. See
Figure D-3 Single Mode Connector Housing
Before completing the next step, check to see
whether the transceiver is keyed. If you have
received a special unkeyed transceiver from 3Com,
go to step 3.
whether the transceiver is keyed. If you have
received a special unkeyed transceiver from 3Com,
go to step 3.
2
Remove the A, B, or M key from the keyed
transceiver. See
transceiver. See
. You may have to remove
the front panel on the module.
Figure D-4 Single Mode Keyed Transceiver (front view)
3
Plug the connector into the transceiver by turning
the connector upside down so that the slot that
normally accepts the A, B, or M key now accepts
the transceiver’s key. See
the connector upside down so that the slot that
normally accepts the A, B, or M key now accepts
the transceiver’s key. See
Figure D-5 Installing the Connector into the Transceiver
Remove A, B, or S key
Top
Remove A, B, or M key
Top
Connector
Transceiver
The connector's slot fits
the transceiver's key
the transceiver's key
Key removed