User guide

Signal Connection and LEDs

Multi Protocol Test Set 19

PRI - DUAL DS1/E1 Port

The AXS-200/855 module provides one RJ48 modular jack with EXFO

proprietary pin-out allowing ISDN PRI connection or dual

DS1/T1/E1connections (Port A and B). The port is labelled

PRI - DUAL DS1/E1.

ISDN PRI Connection

An EXFO proprietary RJ48 to RJ48 cable is supplied with every module

supporting the PRI hardware option.

Connect the ISDN PRI signal to be tested, using the supplied cable, to the

PRI - DUAL DS1/E1 port. Make sure to connect the cable RJ48 connector

identified TO AXS to the AXS-200/805/855 unit and the other end identified

TO DUT to the device under test.

Note: The EXFO proprietary RJ48 to quad Bantam or BNC cable supplied with the

unit can also be used for ISDN PRI testing using the port B (TX 2 and RX 2

labelling).

DUAL DS1/E1 Connection

An EXFO proprietary RJ48 to quad Bantam (TX and RX for both ports A and

B) cable is supplied with every module supporting DS1/T1 testing

capability.

An EXFO proprietary RJ48 to quad BNC (TX and RX for both ports A and B)

cable is supplied with every module supporting E1 testing capability.

Note: When using the EXFO proprietary RJ48 to quad BNC cable, consider that

the cable has an integrated 120 ohms to 75 ohms impedance converter.

This means that with the EXFO proprietary RJ48 to BNC cable, the Monitor

75 (ohm) and Term 75 (ohm) test modes should not be used.