Troubleshooting Power Supply Units
PSU/1HU-R-AC and PSU/1HU-R-DC-200
This PSU/1HU-R-AC is available in the following variants:
• PSU/1HU-R-AC
• PSU/1HU-R-AC-200
In the following, PSU/1HU-R-AC refers to all its variants available with this release.
The PSU/1HU-R-AC and PSU/1HU-R-DC-200 have a single tri-color LED indicator marked “P”. The LED is
located on the faceplate of the PSU.
Please follow the troubleshooting steps in Table 15 based upon the states of the LEDs.
Note
If your module has an LED status that is not represented in Table 15, please contact your ADVA
Optical Networking Technical Services Representative.
WARNING
Hazardous voltage! Always disconnect the power cord from the appliance coupler before
removing the PSU/1HU-R-AC(-200) or PSU/1HU-R-DC-200 from the shelf.
LED
Name
LED Colors Potential Cause Solution for Troubleshooting
P Red Over-current Verify that the combined power consumption of the
modules present in the shelf does not exceed the
maximum output power of the PSU.
If the power consumption of the modules is within the
specification, remove and reinsert the PSU.
Please note, the module should lose power for at least 10
seconds to allow any and all capacitance to dissipate.
If the condition continues, the module has been removed
and inserted, it should be returned to ADVA Optical
Networking for repair.
Yellow 90% load achieved The PSU is operating close to its limits. Check if the
power consumption can be reduced. Do not introduce any
additional hardware which might increase the power
consumption.
Off Input power failure Make sure the PSU is supplied the correct power level.
Green The unit is receiving
the required power
level.
No action is required.
Table 15: LED Status of the PSU/1HU-R-AC(-200)and PSU/1HU-R-DC-200
FSP 3000R7 Maintenance and Troubleshooting Manual - Product Release 16.2 - Document Issue A 89
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