Avaya Definity SI - Page 1745

ISDN-SGR (ISDN-PRI Signaling Group)
Issue 4 May 2002
10-959555-233-123
Figure 10-49. NFAS Duplex ISDN-PRI Over PACCON Signaling Group (24
Channel)
Packet Bus
Packet Bus
D-Channel
D-Channel
TDM Bus
Processor
(TN786)
Packet
Control
Circuit
Pack
(TN778)
UDS1
Interface
Circuit
Pack
(TN464*)
DS1/UDS1
Interface
Circuit
Pack
(TN464*)
UDS1
Interface
Circuit
Pack
(TN464*)
B-Channels
B-Channels
B-Channels
*TN464 C or later
Physical connection
Logical connection
ISDN-TRK
(B-Channel)
Voice or Data
(Port 1)
ISDN-TRK
(B-Channel)
Voice or Data
(Port 24)
ISDN-TRK
(B-Channel)
Voice or Data
(Port 1)
ISDN-TRK
(B-Channel)
Voice or Data
(Port 2)
ISDN-PLK
(D-Channel)
Primary Signaling
Link
(Port 24)
ISDN-TRK
(B-Channel)
Voice or Data
(Port 23)
ISDN-TRK
(B-Channel)
(Port 1)
ISDN-TRK
(B-Channel)
(Port 2)
ISDN-PLK
(D-Channel)
Secondary Signaling
Link
(Port 24)
ISDN-TRK
(B-Channel)
(Port 23)