DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-734ISDN-TRK (DS1 ISDN Trunk)
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Figure 3-25. DS1 ISDN Trunk Interactions (24 Channel - TN767/464C)
On 32 channel interfaces, any of p orts 1-15 and 17-31 on the DS1 interface
circuit pack c an be a B-channel. The 16th port may b e used as a B-channel or as
a D-channel depend ing on the type of ISDN-PRI Signaling Group (ISDN-SGR) to
which it belongs. For more details, refer to the ISDN-SGR and DS1-BD/UDS1-BD
Maintenance documentatio n.
Figure Notes
1. B- and D-channel messages are
routed over the TDM Bus. For
additional reliability, a dup lex
D-channel can be ad ministered for
a signaling group and located on a
different TN464C (or higher) circuit
pack.
2. TN767B (or higher) for DS1;
TN464C (or higher) for UDS1
Processor
(TN798)
Slot 1
DS1
Interface
circuit pack
TN767
T
D
M
b
u
s
2
(Port24)
Pimary
signalinglink
Voice o r dat a
(Port1)
Voice o r dat a
(Port23)
ISDN- TRK
(B-Channel)
ISDN- TRK
(B-Channel)
ISDN-PLK
(D-Channel)
cydfisd3 RPY 06129
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