ADC Campus-REX RS Interface Card CONFIGURING LOOPBACKS

Configuring and Monitoring through the LCD

Configuring the Alarm

To enable or disable the remote Loss of Signal alarm:

1From the CURRENT ALARMS display, press Next three times. RMT I/F ALARMS displays.

2Press Enter. The current status of the remote alarm displays.

3Press Next. LOSS OF SIG ALM displays.

4Press Enter.

5Press Next to scroll through the settings for the alarm.

6Press Enter to select the desired setting. RMT LOSS OF SIG ALM displays.

CONFIGURING LOOPBACKS

Loopbacks provide a way to test the data communication path between the Campus unit, the remote unit, and the remote host equipment. The Campus-REX supports two types of loopbacks:

•Local to Remote loopbacks test the remote data port, the data path inside the remote Campus unit, the HDSL line, the HDSL transceivers of both units, and most of the internal data path inside the local unit. This loopback does not test the local data port drivers and receivers.

•Remote to Remote loopbacks test the remote data port and a small portion of the remote interface card.

If both the local and remote units have a Campus-REX interface card, no loopbacks are supported.

Once a loopback condition has been initiated, it remains in effect until cleared. You may also set a loopback timeout to clear the loopback automatically after a set period of time has elapsed.

4-10 Campus-REX RS Interface Card User Manual