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ISDN-PLK (ISDN-PRI Signaling Link Port)
Issue 5 October 2002
1283
555-233-119
Figure 32.
ISDN-PRI Signaling Link Port Interactions (24 Channel -
TN767/464C)
ISDN-PLK handles maintenance and recovery for the D-channel port on the DS1
carrying the signaling link. A problem with the ISDN-PRI Signaling Link Port
(D-channel) has an effect on all of the associated DS1 ISDN Trunks or PRI
endpoint ports (B-channels) since no call control information can be conveyed to
the far-end switch or Terminal Adapter without it. Stable calls may remain
operational, but no new calls can be made.
If there are problems with the ISDN-PLK, also investigate the TN464 UDS1
interface circuit pack (UDS1-BD).
Figure Notes:
1. B- and D-channel messages are
routed over the TDM Bus. For
additional reliability, a duplex
D-channel can be administered for
a signaling group and located on a
different TN464C (or higher) circuit
pack.
2. TN767B (or higher) or TN464C (or
higher)
Processor
(TN798)
Slot 1
DS1
Interface
circuit pack
TN767
T
D
M
b
u
s
2
(Port 24)
Pimary
signaling link
Voice or data
(Port 1)
Voice or data
(Port 23)
ISDN -TRK
(B-Channel)
ISDN -TRK
(B-Channel)
ISDN -PLK
(D-Channel)
cydfisd3 RPY 061297
Содержание DEFINITY Server CSI
Страница 1: ...Maintenance for Avaya DEFINITY Server CSI Volumes 1 and 2 Release 1 2 555 233 119 Issue 5 October 2002...
Страница 6: ......
Страница 20: ...Contents 555 233 119 20 Issue 5 October 2002...
Страница 30: ...About this Book 555 233 119 30 Issue 5 October 2002...
Страница 944: ...Maintenance Objects 555 233 119 944 Issue 5 October 2002...
Страница 1397: ...MMI BD Issue 5 October 2002 1397 555 233 119 Figure 44 TN787 Multimedia Interface MMI Circuit Pack...
Страница 1409: ...MMI PT Issue 5 October 2002 1409 555 233 119 Figure 45 TN787 Multimedia Interface MMI Circuit Pack...
Страница 1891: ...VC DSPPT Issue 5 October 2002 1891 555 233 119 Figure 63 VC Circuit Pack DSP Port Local TDM Loopback Test...
Страница 1902: ...Maintenance Objects 1902 Issue 5 October 2002 Figure 65 VC Circuit Pack Summer Port Loopback Test...