
Maintenance Objects
555-233-119
820
Issue 5 October 2002
ISDN-BRI endpoints come in a number of configurations. All endpoints require the
D-channel to convey signaling information to the switch. A voice-only set requires
only one B-channel. A voice and data-capable set requires both B-channels (one
for voice and one for data). Therefore, each TN556 port can support either two
voice-only sets or one voice and data-capable set. Only a single ASAI or adjunct
may be connected to an ISDN-BRI port. Multiple adjuncts per line are not
supported.
Figure 24
illustrates the physical connection (solid line) between an ISDN-BRI
Circuit Pack and a voice or voice/data set. Each physical connection allows for
two B-channels, as stated above, plus one D-channel. Each ISDN-BRI circuit
pack can support up to 12 of these PHYSICAL connections to different voice and
voice/data sets or ASAI and adjuncts.
Figure 24.
ISDN-BRI Set Interactions
This section contains the ISDN-BRI Set, ASAI Adjunct, and Adjunct Maintenance
documentation. Some of the results of maintenance testing of the ISDN-BRI Set
or the ASAI and Adjunct may be affected by the health of the ISDN-BRI circuit
pack and Port. These interactions should be kept in mind when investigating the
cause of ISDN-BRI Set problems.
BRI Line
Circuit Pack
P
O
R
T
D-Channel
B-Channel
B-Channel
PHYSICAL CONNECTION
VOICE
or DATA
SET
Logical Connection
VOICE
or DATA
SET
PBX
Physical Connection
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...