VC-BD
Issue 5 October 2002
1887
555-233-119
i. The circuit pack is hyperactive — it is flooding the switch with messages
sent over the control channel. The circuit pack is taken out of service when
a threshold number of these errors is reported to the switch. Clear the
alarm by using busyout board PCSS, reset board PCSS, test board
PCSS long clear, and release board PCSS. If the error recurs within 10
minutes, then replace the circuit pack.
System Technician-Demanded Tests: Descriptions
and Error Code
!
CAUTION:
If the TN788 Voice Conditioner Circuit Pack (VC-BD) is not Vintage 2 or
later, it must be replaced.
Note:
a. Refer to the repair procedure described in the
‘‘XXX-BD (Common Port
Circuit Pack)’’
) maintenance documentation for a description of this test.
Control Channel Loop Around Test (#52)
Refer to the repair procedure described in the XXX-BD (Common Port Circuit
Pack) maintenance documentation 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) (a)
X
X
ND