Red Alarm appears

A DataFire RAS PTE is alarming. This alarm is also referred to as Loss of Signal or Loss of Alignment (LFA). 

Cause Resolution
This indicates a loss-of-signal or out-of-frame condition. Do the following.
  1. Ensure that the cable is plugged in and configured correctly.
  2. Ensure that the driver is configured for the line encoding used by the telephone company.
  3. If the problem is still not resolved, call the telephone company.