Nortel 1000E Maintenance Manual page 161

maintenance hex display, 34
maintenance overlays, 23
maintenance telephone, 24
Major alarm, 68
Media Card, replacing, 146
Media card, replacing, 146
Media Card, testing, 149
Media Card, warm reboot, 149
Media Card error messages, 143
MG 1000E, faults, 76
MG 1000T, faults, 95
MG 1000T fault, 88
Midnight Routine, 56
monitor jacks, 41
MTA class of service, 23
Music-on-Hold, faults, 82
N
network fault indicators, 96
network loops, maintenance window, 53
NT4N48 System Utility card
features, 32
replacing, 117
NT4N64 CP PII Call Processor card
features, 31
replacing, 115
NTAK02
replacing, 127
NTAK10
faceplate LEDs, 34
replacing (DTI applications), 131
NTAK20
removing, 129
replacing, 130
NTAK79
faceplate LEDs, 35
replacing, 128
NTAK93
removing, 129
replacing, 130
NTBK50
faceplate LEDs, 37
removing daughterboards, 129
replacing, 128
replacing daughterboards, 130
NTBK51
removing, 129
replacing, 130
NTDK20
CPU or Memory fault, 88
faceplate LEDs, 41
replacing, 133
NTDK83, NTDK99
card circuit board LEDs, 44
NTDU64 alarm/fan module
LEDs, 28
replacing, 120
NTDU65 power supply module
replacing, 121
NTDU67 Drive Carrier card
replacing, 119
NTRB21
faceplate LEDs, 39
replacing (DTI applications), 131
O
Optivity Telephony Manager (OTM), 17
OTM alarm management, 18
OVD message, trunks, 102
Overlay Loader, 58
overlays, 54
access through the OTM system terminal, 19
overlays, maintenance, 19, 23, 52
overload (OVD) message, 78, 86
Overload Monitor, 58
Communication Server 1000E
Index Page 161 of 162
Maintenance