User's Manual

TRACER 2 x E1 User’s Manual
61280004L2-1C
Section 4 Troubleshooting
35
“Test” Light is Lit or Blinking
The test alarm will remain on (solid) during power-up, indicating a self-test is in progress. The light will
flash or remain on (solid) if the self-test fails.
Recommended Action
Possible Cause (see list below)
• One-flash interval indicates a RAM test failure. ......................................... 1
• Two-flash interval indicates an internal mux failure. ................................. 1
• Three-flash interval indicates the E1-A framer failed. ................................ 1
• Four-flash interval indicates the E1-B framer failed. .................................. 1
• Five-flash interval indicates a DSP failure. ................................................. 1
• On (solid) indicates a faulty internal component. ....................................... 1
Recommended Actions:
1. Replace the BBP.
“TST” Light is Lit After Pressing “Remote Test” Button
The Remote Test light will activate during a remote test in progress. The Remote Test performs a
10-second bit error rate test (BERT) over the RF link to the far-end.
Recommended Action
Possible Cause (see list below)
• A Remote Test has been activated from the front panel “Remote Test”
button or the VT100 user interface. ............................................................. 1
Recommended Actions:
1. Allow the remote test to complete. If the Remote Test Fail light does not activate, the
remote test passed. If the Remote Test Fail light activates, see section on FAIL light is lit
after pressing Remote Test button.
I M P O R T A N T
If problems persist after you have followed the Recommended Actions, contact ADTRAN
Technical Support at [phone]-8716.