Specifications

2. Installing a Switch
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3. Make sure the LED of the power supply module turns green (check the DC-OK LED for EPU-AM, and check
the AC-OK and DC-OK LEDs for EPU-BM).
Figure 2-42 Checking the LEDs (for EPU-AM)
Figure 2-43 Checking the LEDs (for EPU-BM)
If the LEDs (the DC-OK LED for EPU-AM, and the AC-OK and DC-OK LEDs for EPU-BM)
do not turn green, there might not be any power being supplied to the power supply module.
Make sure that the power switch of the power supply module is set to ON and that the power
supply module is installed correctly.
If the problem persists, see the AX6700S/AX6300S/AX3600S/AX2400S Troubleshooting
Guide.
If the LEDs (the DC-ALM LED for EPU-AM, and the DC-FAIL LED for EPU-BM) turn red, a
power supply module failure has occurred. If a failure has occurred, see the AX6700S/
AX6300S/AX3600S/AX2400S Troubleshooting Guide and take corrective action.