Nortel Meridian Meridian 1, Планирование, установка и инструкции по эксплуатации

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Chapter 25 — Fault locating and clearing Page 511 of 536
Option 11C Compact Planning, Installation, Fault Clearing and CCBR Guide
Use the following software programs to isolate attendant console faults:
• LD 31 to test sets and consoles
• LD 30 to perform signaling and continuity tests
Fault clearing procedures
Table 75 lists common attendant console fault indications. To clear faults,
select the symptom listed in this section that most resembles the fault
indications then go through the procedure for clearing each possible cause
until the fault is fixed. Once the fault is corrected, disregard the remaining
possible causes.
Clear any power or Common Equipment faults before you try to clear
attendant console faults.
If the fault is not cleared after you have gone through each possible cause,
check the most recent fault indications. Also check
“How to clear faults” on
page 458 to see if another type of fault is indicated.
After the fault is corrected, go to “Final maintenance procedure” on page 534
to completely restore normal operation.
Table 75
Common attendant console fault indicators
Indicator Possible indications
System messages
Visual indicators Red LED lit on associated circuit cards
User reports Trouble with calls
Trouble with equipment (such as handset,
headset, or display)