Instruction manual

MERLIN LEGEND Communications System Release 5.0
Maintenance and Troubleshooting
555-650-140
Issue 1
June 1997
Index
Page IN-9
voice transmission, 3-4
wiring, 3-2
Toll Fraud
detecting
, A-24
preventing, A-12
Toll fraud, 1-7
Toll fraud prevention, A-14
Top cover
Release 2.1 or later
, 5-41, 5-42
Top cover, Release
2.1 or later
, 1-18
Touch-tone receivers
calculating system requirements
, 3-8
list of modules supplying, 3-11
required by VMS, 3-9
system requirements, 3-8
Transient errors, checking procedure, 2-4
Transient/permanent error thresholds
table
, 2-2
Trouble reports, 1-21
Trunk
Busy-out
, 5-14
incoming, 5-4
maintenance-busy status, 5-5
manual correction of problems, 5-2
outgoing, 5-3
restoring, 5-22
symptom list, 5-2
testing automatically, 5-5
U
Unit loads, 1-30 to 1-31
Behind Switch mode, 1-31
Direct Inward Dialing (DID), 1-30
Hybrid/PBX mode, 1-31
Key mode, 1-31
Upgrading
power supply
, 1-31
Upgrading circuit module firmware, 4-66, 4-68 to 4-78
V
Voice transmission, 3-4