DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1909VC-BD
9
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 circu it pack that

provides cond itioning for the audio signal s from multimedia equipment b ased on

the CCITT H.221 standard. The TN788 transcodes, gain adjusts, and bridges the

audio bit streams demultip lexed by the TN787 (MMI) circuit pack and transmits

encoded, exc lusive audio conference sums onto the TDM b us so that the MMI

can multiplex the audio, vi deo, and data streams for the H.221 end points.

Error Log Entries and Test to Clear Values
MO Name (in
Alarm Log) Alarm
Level Initial Command to Run1
1. Where UU is the universal cabinet number (1 for PPN and 2-44 for EPN); C is the carrier
designation (for example, A, B, C, D, or E); SS is the address of the slot in the carrier where
the circuit pack is located (for example, 01, 02, ...); and p p is the two digit port number (01,
02, 03,...).
Full Name of MO
VC-BD MAJOR test board UUCSS l r# Voice Conditioner Circ uit Pack
VC-BD MINOR test board UUCSS l r# Voice Conditioner Circuit Pack
VC-BD WARNING2
2. Refer to XXX-BD (Common Port Board) Maintenance documentation.
test board UUCSS s r# Voice Conditioner Circuit Pack
Table 9-705. VC-BD Error Log Entries
Error
Type Aux
Data Associated Test Alarm
Level On/Off
Board Test to Clear Value
010 Any Any Any test board UUCSS sh r 1
1 (a) Any None MIN ON
18 (b) 0 busyout board UUCSS WNG OFF release board UUCSS
257 (c) Any Control Channel Loop
Test (#52) MIN ON test board UUCSS r 20
513 (d) 4352 to
4357
769 (e) 4358
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