User`s guide

58 XSR User’s Guide
Troubleshooting T1/E1 Links Chapter 4
Configuring T1/E1 Interfaces
Receive Remote Alarm Indication (RAI - Yellow Alarm)
1 Insert an external loopback cable into the T1/E1 port.
2 Use the
show controller command to check for alarms. To identify
the type of the alarm, analyze the log report of the XSR. If alarms are
reported, contact your service provider.
3 Remove the external loopback cable and the reconnect T1/E1 line.
4 Check the cabling.
5 Power cycle the XSR.
6 Connect the T1/E1 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/E1 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.