Cabletron Systems 100BASE-FX, Cabling Manual

Page: 165 / 192

FDDI 14-15
Connecting and Terminating
If a link indicator is present for the port, check that it is on. If the indicator is not
on, the port does not have a valid link. Perform each of the following actions until
you reach a resolution of the problem and achieve a link.
• Check that the FDDI device at the other end of the twisted pair segment is on.
• Verify that the RJ45 connectors on the twisted pair segment have the proper
pinouts.
• Check the cable for continuity.
• Check that the twisted pair connection meets dB loss and cable specifications
outlined in TP-PMD Network Requirements.
• If all else fails, contact Cabletron Systems Technical Support.
To remove the RJ45 connector from the port once it is locked in, grasp the cable
where it enters the network device. Using your finger or a non-conductive probe
(the cap of a ballpoint pen is a useful tool for recessed ports) pinch the exposed
arm of the locking clip towards the main body of the housing. When the arm
contacts the housing, the locking clip has been disengaged. Without releasing the
arm, gently pull the RJ45 connector directly out of the port.
If the connector will not come out, there may be damage to the locking clip.
Examine the arm of the locking clip. While pressing it back toward the shell of the
connector, verify that the clip, located within the port, is being moved. If the clip
is broken, you may need to use a non-conductive probe to disengage the locking
clip.
Do not place foreign objects into device ports while they are
connected to a power source.