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C-2
7984-A2-GB20-10February 1999
T1 Network Interface
The T1 network interface is an RJ48C, 8-position, unkeyed modular connector for
a 100-ohm balanced interface (Table C-1, Figure C-1).
Table C-1. T1 100-Ohm Balanced Interface
Connector
Signal
Pin Number
Receive Ring (Data out from 7974) 1
Receive Tip (Data out from 7974) 2
Receive Shield 7
Transmit Ring (Data in from 7974) 4
Transmit Tip (Data in from 7974) 5
Transmit Shield 8
98-16139
11
3
2
9
1
4
Receive Ring
Receive Tip
Shield Ground
Transmit Ring
Transmit Tip
Shield Ground
Twisted Pair
Twisted Pair
DB15
Socket
1
2
7
4
5
8
3
6
8-Position
Modular
Plug Unkeyed
No Connection
No Connection
Receive Ring
Receive Tip
Shield Ground
Transmit Ring
Transmit Tip
Shield Ground
Figure C-1. T1 Network Interface Adapter Cable (Feature Number 3100-F1-517)