Avaya S8700 - Page 2570

Maintenance-Object Repair Procedures
555-233-143
8-1848 Issue 1 May 2002
System Technician-Demanded Tests:
Descriptions and Error Code
Control Channel Loop-Around Test (#52)
See the repair procedure described in ‘‘XXX-BD (Common Port Circuit Pack)’’ as
‘‘Control Channel Loop-Around Test (#52)’’.
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND
1
1. D = Destructive; ND = Nondestructive
Control Channel Loop-around test (#52)
2
2. See repair procedures described in ‘‘XXX-BD (Common Port Circuit Pack)’’.
!
CAUTION:
If the TN788 Voice Conditioner circuit pack (VC-BD) is not
Vintage 2 or later, it must be replaced.
XXND