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The SS7 4-port module provides support for SS7 ISUP signaling protocols, and contains dual Ethernet ports (not supported), an RJ48T trunk connector, and software selectable T1/E1.

T1/E1 RJ-48 Connector

RJ-48 Connector

Connector Pinouts

EIA 5681B (RJ-48)

Pin#

T/R Pair

Tx+ (transmit-positive)

1

5R

Tx- (transmit-negative)

2

2T

Rx+ (receive-positive)

4

5R

Rx- (receive-negative

5

2T

No connection

3, 6, 7, 8