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Troubleshooting T1/E1 & T3/E3 Links
Receive Remote Alarm Indication (RAI - Yellow Alarm)
1.
Insert an external loopback cable into the T1/E1 or T3/E3 port.
2.
Use the
analyze the log report of the XSR. If alarms are reported, contact your service provider.
3.
Remove the external loopback cable and the reconnect line.
4.
Check the cabling.
5.
Power cycle the XSR.
6.
Connect the T1/E1 or T3/E3 line to a different port and configure the port with the same
settings as the line. If the problem does not persist, then the fault lies with the port. In this
case, contact Technical Support for assistance.
Transmit Remote Alarm Indication (RAI - Yellow Alarm)
1.
Check the settings at the remote end to ensure that they match your port settings.
2.
Contact your service provider if the problem persists.
Transmit Sending Remote Alarm (Red Alarm)
1.
Ensure the framing format configured on the port matches the framing format of the line. If
not, change the framing format on the controller to match the format of the line.
2.
Check the settings at the remote end and ensure that they match your port settings.
3.
Contact your service/network provider if the problem persists.
Transmit Alarm Indication Signal (AIS - Blue Alarm)
1.
Ensure that the framing format configured on the port matches the framing format of the line.
If not, change the framing format on the controller to match the format of the line.
2.
Power cycle the XSR.
3.
Connect the T1/E1or T3/E3 line to a different port. Configure the port with the same settings
as the line. If the problem persists, perform an external loopback test on that port. If the
problem persists, contact Technical Support for assistance.
4-10 Configuring T1/E1 & T3/E3 Interfaces
show controller
command to check for alarms. To identify the type of the alarm,
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Table of Contents
Troubleshooting
