Speech Path System Fault - Stby Side Has Become Fault - NEC Univerge SV8500 Operation And Maintenance Manual

4.5.4

Speech Path System Fault - STBY Side Has Become Fault

Faulty Situation:
• A fault has occurred in the STBY side of the Dual Configuration system.
• [1-B] TSW Failure (Permanent)
• [1-D] TSW Write Failure
• [1-F] TSW Clock Failure
• [4-D] TSW Ready Failure
(1) Check to see if the TSW circuit card is making poor contact.
(a) Set TSW MBR switch of the TSW circuit card UP.
(b) Set MB switch of the TSW circuit card UP and extract the circuit card from its mounting slot.
(c) Extract the TSW circuit card from its mounting slot and clean the contact portion. If cleaning cannot
be done, repeat insertion and extraction of the circuit card two or three times.
(d) Set TSW MBR switch and MB switch of the TSW circuit card UP and insert the circuit card into its
mounting slot.
(e) Set MB switch of the TSW circuit card DOWN.
(f) Set TSW MBR switch and PLO MBR switch (1-IMG only) DOWN.
(g) Check if a station-to-station connection can be normally set up.
(2) Check PCM cables.
(a) Check the PCM cables.
(b) Initialize the system by depressing the INIT button on the EMA card and see if a station-to-station
connection can be set up.
CHAPTER 5 Operation Procedure for System with PIR
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