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Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
July 2010
Chapter 1 General Troubleshooting
1.10 Power Supply Problems
h.
If the DC power source is battery-based:
•
Check that the output voltage is in the specified range from –40.5 VDC to –72 VDC.
•
Check the age of the batteries. Battery performance decreases with age.
•
Check for opens and shorts in batteries, which might affect power output.
•
If brownouts occur, the power load and fuses might be too high for the battery plant.
Step 2
If multiple pieces of site equipment show signs of fluctuating power or power loss:
a.
Check the uninterruptible power supply (UPS) or rectifiers that supply the equipment. Refer to the
UPS manufacturer’s documentation for specific instructions.
b.
Check for excessive power drains caused by other equipment, such as generators.
c.
Check for excessive power demand on backup power systems or batteries when alternate power
sources are used.
Содержание Cisco ONS 15600 SDH
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Страница 30: ...xxx Cisco ONS 15600 SDH Troubleshooting Guide R8 0 July 2010 About this Guide ...
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