Nortel Meridian Meridian 1, Planning, Installation And Operating Instructions

Page: 514 / 556

Chapter 25 — Fault locating and clearing Page 495 of 536
Option 11C Compact Planning, Installation, Fault Clearing and CCBR Guide
Clearing Peripheral Equipment faults
Peripheral Equipment faults
Peripheral Equipment (PE) provides the interface between Network
switching and terminal equipment (such as trunks, telephones, data sets, and
attendant consoles). Peripheral Equipment faults can disable network and
terminal equipment.
Fault clearing procedures
Manual Continuity Tests can be used to isolate Peripheral Equipment faults.
System messages with the mnemonic BSD090 contain fiber interface related
information. They identify the link and its state.
Table 68 shows the Fiber
Interface messages output and their meaning.
Table 72
Fiber Interface messages
Table 73 lists common Peripheral Equipment (PE) fault indications (many
other system messages may be generated). To clear faults, select the symptom
listed in this section that most resembles the fault indications and 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 attempting to clear
peripheral equipment 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.
BSD655 message Problem
BSD090 FIBER 1 LINK DOWN Expansion cabinet Fiber Interface Link is
down.
BSD090 FIBER 1 LINK ESTABLISHED Expansion cabinet Fiber Interface Link is
reestablished.