Lucent Technologies -48V CPS4000/CPS4000 PLUS Cabinet Power System
Issue 13 December 2000 Maintenance 8 - 3
Power Units, continued
LED Test Use the following test to determine if all front panel LEDs and the LCD
display are working properly.
LED Test
Step Action
1
Press the LED Test button on the MCU face plate.
2
While the LED Test button is depressed all front panel LEDs
should be illuminated.
3
To initiate self-diagnostics for the MCUs, depress the LED
Test button for 6 seconds. See “Self-Diagnostics Routine” in
Section 7.
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