Nortel Meridian 1 Manual page 199

Index
Numerics
3PE (three-port extender) cards, 47
A
acronym definitions, 181
add-on module problems, 171
air probe, 20, 22, 23
alarm displays, 8
attendant console faults
callout/callin problems, 148, 150
equipment overview, 146
indicator or digit display problems, 152
list of symptoms, 145
operator cannot hear or be heard, 154
typical system messages for, 7, 147
typical user-reported problems for, 12, 147
typical visual fault indicators for, 8, 147
B
blower unit problems, 35, 43
blower units, 20, 22, 23
BTU (bus terminating unit), 46
C
calls
caller cannot hear or be heard, 164
callout/callin problems, 139, 142, 148, 150,
160, 162
conferencing problems, 115
no-ring problems (500 or 2500 models), 174
placement problems (2500 telephones and
some trunks), 117
processing problems (system option 21E), 51
processing problems (system option 51), 60
processing problems (system options 21A and
21), 49
processing problems (system options 61 and
71), 68
transfer problems, 115, 170
volume or noise problems, 166
cards, reseating/reenabling, 3
circuit breaker off, 27, 30, 36, 39
circuit breakers, 21, 22, 23
CMA (changeover and memory arbitrator) cards, 46
CMDU (Core Multi Disk Unit), 46
CMDU problems, 85
CNI (Core Network Interface) cards, 47
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Meridian 1 Fault clearing