Chapter Four Problem Determination; Procedure - Andrew 8212 User Manual

CHAPTER FOUR
Andrew LAUs are designed for ease of use. By using the following guide,
most problems can be quickly isolated and corrected.

Procedure

If an attaching device is correctly connected to the LAU and the LAU is
itself correctly connected to the MAU, both the port channel LED on the
LAU and the lobe/terminal port LED on the MAU will be on, and the
attaching device should be able to communicate properly on the network.
If the attaching device does not operate properly, first check to see that the
device is powered on and is set up to request network access.
Next, check to see if the lobe/terminal port LED on the MAU is on. If it is
on, the problem is likely to be one of the following:
•
The token ring adapter card in the attaching device is not
operating properly.
•
The software in the token ring adapter card is not set up
correctly.
•
There is a problem in the network itself. If this is the case, there
will probably be trouble elsewhere in the network.
If the lobe/terminal LED is not on, verify that the lobe cables are not too
long. Proper lobe cable lengths are covered in Chapter 3, Installation.
Problem
Determination
29