User`s guide

XSR User’s Guide 57
Chapter 4 Troubleshooting T1/E1 Links
Configuring T1/E1 Interfaces
Complete the following steps if the receiver has a loss of signal:
1 Ensure the cable between the interface port and the T1/E1 service
provider equipment is connected correctly.
2 Check the cable integrity by looking for breaks or other physical
abnormalities in the cable.
3 Check the cable connectors.
T1/E1 Alarm Analysis
Perform the following steps to troubleshoot for various alarms that can occur
within the T1/E1 subsystem. The following troubleshooting flowchart
displays the procedures.
Figure 6 T1/E1 Alarm Analysis Troubleshooting Flowchart (Part 1)
Receive Alarm Indication Signal (AIS - Blue Alarm)
1 Check that the framing format of the T1/E1 controller port matches
the framing format of the line provided by your service provider.
If your T1/E1 controller still
does not function as desired,
contact your service/network provider
What kind of alarm is reported?
Alarm Analysis
Receive Remote Alarm
If a Transmit Remote Alarm
Indication (Yellow alarm)
If a Receive Alarm Indication
Signal (Blue alarm) is reported,
contact your service/network
If a Transmit Sending Remote Alarm
(Red alarm) is reported, check
your settings at the remote end
Transmit Alarm Signal
(Blue alarm)
Indication (Yellow alarm) is
reported, check your
settings at the remote site
provider
- refer to Figure 7
- refer to Figure 7