Nortel Networks DCT1900 - Manual (Page 384)

Technical Product Manual - DCT1900
Maintenance, Fault Finding Procedures
6-2 Maint-DCT1900/R8/mw
© 2000-2005
6.3 How Defective Items are Indicated
When the flowcharts lead to a possible cause, this is indicated by a statement giving the name of
the defective part or the cause of the problem, e.g. a defective SPU board is indicated by the
statement “SPU.” When there are more possible items, they are listed in order of decreasing
probability.
6.4 Fault Finding Flowcharts
START
General Alarm
active?
Common user
complaint?
Individual user
complaint?
Yes GENERAL ALARM
No
COMMON USER
COMPLAINT
INDIVIDUAL USER
COMPLAINT
No
Yes
Yes
CSM PROBLEM
No