Lucent Technologies -48V CPS4000/CPS4000 PLUS Cabinet Power System
5 - 30 Installation and Testing Issue 13 December 2000
Initial Start-up and Test, continued
Self-Diagnostics Before running the self-diagnostics on the ES646 and ES648 control
units, determine whether you want to exercise only the Alarm LEDs or
if you want to test both the LEDs and the office alarm relays. With
SW1-position 6 closed (default), the office alarms are not affected by
the self-diagnostics. Opening SW 1-position 6 results in a momentary
transmission of each office alarm contact. See “Self-Diagnostics
Routine” in Section 7 for the order in which the tests are run.
Self-Diagnostics
Step Action
1
To perform self-diagnostics, depress the LED Test pushbutton
for 6 seconds until the diagnostics start. (Release the
pushbutton after the diagnostics start.) While each alarm is
tested, the LCD display is blank. If a test fails, a code appears
momentarily on the LCD. (See “Self-Diagnostics Routine” in
Section 7 for a list of the error codes.)
If the self-diagnostics pass, the Normal (green) LED will
light. Any test that fails results in a PMN alarm that is retired
only when the unit passes self-diagnostics or when the unit is
powered down and then powered up again.
2
Disconnect the thermal probe cables (P10-P13) on the
distribution module before adjusting the plant voltage.
3
Plug a digital multimeter (DMM) into the test jacks on the
control unit.
4
Set the plant voltage to 54.5 volts using the V Adj encoder
located on the control unit.
5
Reconnect the thermal probe cables (P10/P13) on the output
distribution module.
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