Paradyne 317x E1 manual Alarms

Maintenance

Alarms

The E1 DSU/CSU can be attached, either locally or remotely, to an ASCII terminal or printer to display or print alarm messages. The Communications (COM) port can be used as the destination for Alarm Set and Alarm Clear messages. This enables an ASCII terminal or printer to monitor the E1 DSU/CSU for alarm conditions. Alarms can also be displayed on a PC that is using a terminal emulation package.

Each alarm message contains a customer identification to indicate which remote E1 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.

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

•Alarm Cleared. Remote Alarm Indication 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: 1±2 for Model 3172 DSU/CSUs, or

1± 4 for Model 3174 DSU/CSUs).

•Alarm Cleared. Out Of Frame condition at synchronous data port n (where n is the port number: 1±2 for Model 3172 DSU/CSUs, or 1± 4 for Model 3174 DSU/CSUs).

•An Excessive Error Rate has been detected at synchronous data port n (where n is the port number: 1±2 for Model 3172 DSU/CSUs, or 1± 4 for Model 3174 DSU/CSUs).

•Alarm Cleared. An Excessive Error Rate at synchronous data port n (where n is the port number: 1±2 for Model 3172 DSU/CSUs, or 1± 4 for Model 3174 DSU/CSUs).

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.

3170-A2-GB20-20 December 1996 4-9