Maintenance

Alarms

The DSU/CSU can be attached, either locally or

remotely, to an ASCII terminal or printer to display or print alarm messages. Alarms can also be displayed on a PC that is using a terminal emulation package.

For standalone DSU/CSUs, you can route these alarms to the MODEM port, the COM port, or both. For carrier-mounted DSU/CSUs, you can route them to the COM port or dial them out using an external device.

Each alarm message contains a customer identification to indicate which remote DSU/CSU is reporting an alarm. For information about customer identification, refer to the Displaying Unit Identity section in Chapter 3, Operation.

Possible alarm messages are as follows:

Continuous Loss Of Signal detected at the x Interface (where x is either Network or DTE).

Alarm Cleared. Loss Of Signal condition at the x Interface (where x is either Network or DTE).

Continuous Out Of Frame condition detected at the x Interface (where x is either Network or DTE).

Alarm Cleared. Out Of Frame condition at the x Interface (where x is either Network or DTE).

Alarm Indication Signal received at the x Interface (where x is either Network or DTE).

Alarm Cleared. Alarm Indication Signal at the x Interface (where x is either Network or DTE).

An Excessive Error Rate has been detected at the Network Interface.

Alarm Cleared. An Excessive Error Rate at the Network Interface.

Yellow Alarm signal received at the x Interface (where x is either Network or DTE).

Alarm Cleared. Yellow Alarm signal at the x Interface (where x is either Network or DTE).

Continuous Out Of Frame condition detected at synchronous data port n (where n is the port number).

Alarm Cleared. Out Of Frame condition at synchronous data port n (where n is the port number).

An Excessive Error Rate has been detected at synchronous data port n (where n is the port number).

Alarm Cleared. An Excessive Error Rate at synchronous data port n (where n is the port number).

If two alarm conditions are detected at once, the higher priority alarm is reported. However, if an even higher priority alarm is detected before the first alarm is cleared, the later alarm is not reported. (The alarms listed above are in priority order with the highest priority listed first.)

Alarms remain active until the alarm condition is cleared. Also, an alarm clear message is only sent when there are no other alarms active.

For information about alarm configuration options, refer to the Alarm Configuration Options section in Appendix C, Configuration Options.

For troubleshooting information, refer to the Troubleshooting section on page 4-11.

3160-A2-GB21-50

January 1997

4-9

Page 84
Image 84
Paradyne 3160-A2-GB21-50 manual Alarms