DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-1257VC-BD
3
VC-BD
!
CAUTION:
If the TN788 Voice Conditioner Circuit Pack (VC-BD) is not Vintage 2 or
later, it must be replaced.
The TN788 Voice Conditioner Circuit Pack (VC-BD) is a service circuit pack that
provides conditioning for the audio signals from multimedia equipment based on
the CCITT H.221 standard. The TN788 transcodes, gain adjusts, and bridges the
audio bit streams demultiplexed by the TN787 (MMI) circuit pack and transmits
encoded, exclusive audio conference sums onto the TDM bus so that the MMI
can multiplex the audio, video, and data streams for the H.221 endpoints.
MO Name (in
Alarm Log)
Alarm
Level Initial Command to Run
1
1. Where P is the port network number (1 for PPN); C is the carrier designation (for example, A, B,
or C); and SS is the address of the slot in the carrier where the circuit pack is located (for
example, 01, 02, ...).
Full Name of MO
VC-BD MAJOR test board PCSS l r# Voice Conditioner Circuit Pack
VC-BD MINOR test board PCSS l r# Voice Conditioner Circuit Pack
VC-BD WARNING
2
2. Refer to XXX-BD (Common Port Board) Maintenance documentation.
test board PCSS s r# Voice Conditioner Circuit Pack