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Introduction
1-73000-A2-GA31-80 December 1994
Table 1-1
(5 of 6)
Technical Specifications for the COMSPHERE 3000 Series Carrier
Technical Specifications Criteria
NETWORK INTERFACE
Digital/Lease Network Interface
Network Interface Module:
Dial
4-wire Switched 56 (U.S. only)
2-wire Switched 56
Model 3151 and 3161 Physical Interface
USA
Canada
Full Compliance with AT&T Technical Reference
62310–1987, ‘‘Digital Data System Channel Interface
Specification,” November 1987; and Bell Canada ‘‘Digital
Circuit Terminating Equipment (DCTE) Specifications,”
July 1989, Issue 1
(2) 50-pin connector
Digital: USOC RJ48T
Lease: 50-pin to 8-pin cable; JM8
(1 or 2) 50-pin connector
Permissive: USOC RJ21X
Programmable: USOC RJ27X
(1 or 2) 50-pin connector; USOC SJA57
(1 or 2) 50-pin connector
(1 or 2) 50-pin connector; RJ48H (T1)
CA81A (T1 with adapter cable)
DTE INTERFACE
Model 3151
Physical Interface
Framing Format
Coding Format
DTE Line Equalization
Send AIS
Model 3161 (DSX-1)
Physical Interface
Framing Format
Coding Format
DTE Line Equalization
Send AIS
DB15S
D4, ESF
AMI, B8ZS
5 selectable ranges from 0 to 655 feet (0 to 196.5 meters)
Selectable
DB15S
D4, ESF
AMI, B8ZS
5 selectable ranges from 0 to 655 feet (0 to 196.5 meters)
Selectable
MODEL 3161 PORT INTERFACE
Standards
Rates
EIA 530A, V.35, RS-449, V.11
Nx64 – 64-1.536 Mb
Nx56 – 56-1.344 Mb