ADTRAN 1200070L2, 1200070L1 If SELF-TEST Fails, If the Express XL/XLT does not Read Ready

Chapter 4

Troubleshooting

When the Express XL/XLT powers up, it performs an internal self-test. This takes about 10 seconds. At the end of the test, the PWR LED should remain on.

IF SELF-TEST FAILS

If the PWR LED is not on or continuously flashes, the following steps will ver- ify whether or not the problem can be fixed locally.

1.Ensure the Express XL/XLT is receiving power.

2.Power off the Express XL/XLT while holding down SELECT and TEST; then power back up. This will reset all internal settings to their factory de- fault.

3.Continue holding the SELECT and TEST buttons until the Loop LED flashes once.

4.If the Express XL/XLT still does not pass self-test, call ADTRAN Technical Support for assistance. See the inside back cover of this manual for infor- mation on contacting ADTRAN.

IF THE EXPRESS XL/XLT DOES NOT READ READY

When the Express XL/XLT has been set up and connected to a line, but the Loop LED does not remain on after a few minutes, proceed with the following steps:

1.Cycle power on the Express XL/XLT, leaving it off for a minimum of two seconds; then turn the power on for one minute to ensure the Loop LED still doesn’t turn on.

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