- Hewlett-Packard Broadband Service Analyzer User's Guide

2-9

Using the Analyzer

To Connect to the System Under Test

2 Using the Analyzer

Transmit Loopback Test Connection

Transmit loopback is both an interface conﬁguration option and a test

connection.

Transmitted data is directed both out of the transmit connector and

internally (within the interface pod) to the measurement system.

The analyzer ignores external connections to the receive connector.

For E1 interface pods set for the transmit loopback interface

conﬁguration, you can select either the BNC or RJ-48 (equipment, or line

connector) as the transmitting connector. For all other interface pods,

you can only transmit using the connector labeled Out.

External Loopback Test Connection

Typical applications for this type of connection include calibration, self-

testing, troubleshooting, and demonstrations. This is an out-of-service

test that runs independently of a network. The analyzer acts as both the

transmitter and receiver.

Port 1 Port 2

Equipment under test