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ACCULINK 317x E1 DSU/CSU
D-2 December 1996 3170-A2-GB20-20
E1 Network Interface
The E1 network interface is either two BNC connectors
(Transmit and Receive) for a 75 ohm unbalanced
interface, or an RJ48C, 8-position, unkeyed modular
connector (Table D-1) for a 120 ohm balanced interface.
The E1 120 ohm network interface adapter cable is
shown in Figure D-1.
Table D-1
E1 120 Ohm Balanced
Interface Connector
Signal Pin Number
Receive Ring 1
Receive Tip 2
Receive Shield 3
Transmit Ring 4
Transmit Tip 5
Transmit Shield 6
Figure D-1. E1 120 Ohm Network Interface Adapter Cable