Quick Eagle Networks DL3800E manual DTE Tests

5

DTE TESTS

Only one loopback can be initiated through the DTE TESTS MENU, a bi- directional DTE/NET Loopback.

To access the DTE TESTS MENU from the TEST MENU, press Enter when DTE TESTS appears in the display.

When in the DTE TEST MENU, pressing Enter accesses the DTE/NET Loopback.

DTE/NET Loopback

The DTE/NET LOOPBACK is a bi-directional loopback that loops the received DTE signal back to the DTE and the signal from the E1 Main Board back towards the E1 Main Board. This loopback is used to verify the operation of the DTE and associated cabling, the DTE Board, and the link between the DTE Board and the E1 Main Board.

To initiate a DTE/NET LOOP from the DL3800E unit front panel, press Enter when DTE/NET LOOP appears in the display.

When a DTE/DTE LOOP is in operation, a “plus sign” will appear after DTE/NET LOOP in the display:

DTE/Net Loop +

To end the loopback, press Enter again while still in the DTE/NET

LOOPBACK MENU.

To cancel a test or loopback from any place in the Menu, press the END TEST button combination. However, this will cancel all tests and loopbacks currently in progress.

Only one test can be performed at a time. To start a new test, the previous test must first be terminated.

Use the Exit button to go out of the TEST MENU. Use the other buttons to go into the MONITOR or the CONFIGURATION MENUS to view the performance information or view and change the configuration of the unit while the test is in progress.

While the test is active, the front panel TEST LED is on, reminding you that the unit is out of normal service condition. The test is terminated by pressing the END TEST button combination at any point in the menus. When this combination is pressed, the currently active test is canceled and the front panel display returns to the TEST MENU to the test that was just terminated.

5-14 DL3800E Inverse Multiplexer User’s Guide — July 9, 2001