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The information displayed identifies the unit by its communications
address, type, and name. It also shows its status and, if a PRU, its
software revision number. If there are no faulty units, the display is
blank.
A <Next Page> softkey is displayed if the list of faulty units occupies
more than one screen.
(6)
At this point, you have several possible courses of action, depending
on what type of faults are listed and how you must resolve them. For
example, you might want to access more information about a particular
fault. In such a case, you would select the unit with the cursor control
keys and proceed as follows:
(a)
Press <Item Details>. This action presents a new screen showing
detailed information about the unit and its fault, including how
many faults it has had in the past 24 hours. Also important is the
notation of any alternative units, that is, another unit that can
perform this unit's functions if it is taken out of service.
(b)
To return to the Faulty Units screen, press <Return> at the Item
Details screen.
(7)
Having identified an alternative unit via the Item Details screen, you may
want to check the operating status of that unit. Also, you may want to
check the status of other units in the same cabinet, or of units that may
be affected if the unit is taken out of service. To do so, press <Cabinet
State>.
When you press <Cabinet State>, you are displaying the first of a series
of screens that are designed to show you the status of all SRUs, PRUs,
and RRUs in the system. The first screen displayed is a list of all SRUs
(excluding the Power Supply SRUs) in cabinet 1. Cabinet 1 is the left-
most cabinet of the system as viewed from the front. (The status of
PRUs and RRUs are detailed at lower levels in the screen hierarchy.)
Each SRU in the list has one of the following statuses:
•
Working: The unit is operating properly.
•
Trouble: The unit has an operating fault but it has not yet been
taken out of service.
•
Faulty: The unit has an operating fault and has been taken out of
service by the system.
•
Down: The unit has been taken out of service by the system
administrator.
•
Unloading: The unit is being taken out of service.
•
Preload: This applies to processor SRUs only. PRUs are about to
be loaded from disk into a processor SRU.
•
Loading: This applies to processor SRUs only. PRUs are being
loaded from disk into a processor SRU.
•
Offline: This applies to LIUs only. The port is functional, but no
connection has been made.
Troubleshooting and Fault Clearing Procedures 31
Practice 450-1011-501
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