6
Diagnostics
EQUIPMENT RETURN AND REPAIR
If faulty equipment is suspected, perform the tests in this section. If, after performing these tests, the DL3800E unit or any associated module is suspected to be faulty, call Quick Eagle Technical Support at (408)
RUNNING DIAGNOSTIC TESTS
You should test the DL3800E unit before you use it. If it, or an associated module, does not operate properly during or after testing, call Quick Eagle Networks Technical Support at: (408)
This chapter contains procedures for testing the DL3800E unit followed by suggestions for troubleshooting problems.
You use the DTE AND NETWORK TESTS MENU to initiate and terminate one DTE test and three network tests. The four tests are:
•DTE/NETWORK Loopback
•Payload Loopback
•LINE Loopback
•LOCAL Loopback
NOTE: You do not need to inform the telephone company that you’re running the tests. However, if the tests reveal a problem with a carrier’s service or with the DL3800E, you should inform the carrier that the DTE equipment or the DL3800E unit must be removed from service.
To initiate a loopback test in the DTE AND NETWORK TESTS MENU, select TESTS from the INVERSE MULTIPLEXER MAIN MENU, and press Enter to open the menu.
Select a test on a specific network port, set to ON, select CONFIRM, and press Enter.
To terminate or cancel the test, select it, set to OFF, select CONFIRM, and press Enter.
The example in Figure
