Avaya X330WAN Manual Do Utilizador

Handling E1/T1 Alarms

Avaya X330WAN User’s Guide

81

In addition to the alarms, X330W-2DS1 provides error messages when it can not 
establish a connection with the host P330 switch. In this case, verify that the 
appropriate software versions are installed in the host P330 switch.

Loss of Signal. This alarm is the result of a loss of the clock 

synchronization signal. The alarm severity is Major.

The alarm is indicated when the SIG LED is off and the ALM LED lights.

•

Check that the E1/T1 cable is properly connected to the E1/T1 ports at both 
ends of the connection.

•

Check the integrity of the cable and pinouts.

•

Ensure that the receiving and transmitting pairs are not reversed.

•

If regenerators are used, check the integrity of the regenerators.

Loss of Frame. This alarm is the result of a loss of the frame 

synchronization signal. The alarm severity is Major.

The alarm is indicated when the ALM LED lights and the ACT LED is 

off.

Ensure that the line settings are compatible on both sides of the line.
For example:
•

Ensure that both sides of the connection are configured to use the same line 
code and framing configuration. Use the 

 command to view 

the current line code. Use the 

 command to configure the framing mode 

and the 

 command to configure the line code.

•

For T1 lines, ensure that the line is configured for the cable length in use. Use 
the 

 command to view the current configuration. Use the 

and 

commands to change the cable 

length configuration.

For detailed information on CLI commands, see Chapter 6: X330WAN CLI 
Commands.

After clearing the condition causing the LOF alarm, the module continues to 

indicate an LOF condition for approximately 10 seconds.