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18
Power-Up Routine
When power is applied, the DSU:
H Determines what options (DBM or TDM/Flex) are installed, if any.
H Runs a Device Test on itself and each of the installed options.
During the tests, all indicators on the DCP light briefly and the message Power-Up
Tests appears on the liquid crystal display (LCD).
H Displays the results of each test momentarily as Pass, Fail, or Abrt. (Abrt indicates
that the Device Test was aborted because a network loopback was in progress
during the power-up procedure.) These tests take about 20 seconds to complete.
If a TDM/Flex is installed, MUX is displayed as Pass or Fail.
If the DSU or DBM fails this test, follow the procedure below.
" Procedure
1. Press the key to return to the top-level menu.
2. Select Local (F1 key).
3. Press the key to scroll the Confg (Configuration) branch into view.
4. Press the function key directly below Confg.
5. Press the F1 key to select Opts (Configuration Options).
The
Load from
screen appears.
6. Press the
key to bring the factory-loaded unit configurations into view, and
select the appropriate configuration.
— PTPC for a point-to-point control
— PTPT for a point-to-point tributary
— MPTC for a multipoint control
— MPTT for a multipoint tributary
7. Press the F1 key to SAVE the selected configuration.
The
Save to
screen appears.
8. Save the selected configuration to Activ (F1 key).
9. Press the
key to return to the top-level menu, then select Local again.
10. Select the Test branch (F3).
The
Run Test on
screen appears.
11. Select the device that Failed: the DSU (or the TDM/Flex) or DBM.
12. Press the F2 key to run the Device Test again.
The device should pass.
13. Should the device fail, contact your service representative.