4-1
5160 Service Aggregation Switch Hardware Installation and Start-up Manual
009-3207-001 Standard Revision A
Copyright
©
2013 Ciena
®
Corporation September 2013
Maintenance 4-
The 5160 is designed so that the cabling, optics, and power supply units are
hot swappable. This means that the unit can remain powered for all these
maintenance tasks. There is no requirement to remove power from the unit
before performing these types of routine maintenance.
Note: The system can remain on, however, the power module being
removed and installed must be unpowered. In some configurations,
replacing a power supply can be a service impacting procedure.
Note: If you have opted to power both DC power supplies from the same
circuit, you will need to power down the system to replace a power supply.
Ciena recommends that each power supply be fed from a separate circuit
This chapter provides maintenance instructions related to the power supply
modules. It includes the following procedures:
• “Replacing an AC Power Supply”
• “Replacing a DC Power Supply”
Replacing a Power Supply Module
The 5160 has space for two power supply modules. The system can operate
with a single power supply or with redundant power supplies. An overview of
the power supply modules is included in 39XX/51XX Product Fundamentals.
Note: The system does not distinguish between a faulty and an
unpowered supply. As a result, if redundant power supplies are installed,
but only one supply is connected to a power source, the unpowered
supply will cause the system to report an alarm state (ALRM LED solid
yellow and STAT LED off). This alarm will be cleared when the power
supply is properly initialized.
Simplex Power
If a single power supply is used, replacing the power supply will be a service
impacting procedure.
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