RJ-48C interface

An RJ-48C interface is an RJ-45 connector with pin assignments specified by ANSI to have a single 4-wire T1/E1 connection.

RJ-48C interfaces use the following pin assignments:

Pin assignments

The RJ-48C interface uses the following pin assignments:

Pin

Description

1

Receive from network (ring).

2

Receive from network (tip).

3

No connection.

4

Transmit to network (ring).

5

Transmit to network (tip).

6

No connection.

7

Optional shield, not used.

8

Optional shield, not used.