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28 C1555M-G (12/07)
HOW TO TURN OFF THE AUDIBLE POWER SUPPLY ALARM
The power supply module contains an audible alarm, which operates in conjunction with the fault LEDs located on the power supply front panel.
To turn off this alarm, complete the following steps:
1. Turn off the matrix bay power.
2. Remove the power supply module from the matrix bay frame.
3. Move the speaker switch to the OFF position (refer to Figure 19).
4. Insert the power supply module back into the matrix bay frame.
5. Turn on the power.
Figure 19. Power Supply Alarm Speaker Switch
SPKR ON/OFF