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8800 Series Chassis Switch Hardware Installation Guide
Overview of the 100-240VAC Power Supply Unit
XCM88PS1
The following figure shows the 100-240VAC UL-listed accessory power supply unit (PSU).
The power supply bay in a 8800 series switch can accommodate up to six hot-swappable
PSUs.
Figure 9. Power Supply Unit XCM88PS1
The front panel on each PSU provides a handle for insertion and removal of the unit. Two
cooling fans draw air in through the front vents on the PSU and exhaust the air through the
rear vents of the switch. Airflow through the PSU is independent from the airflow through the
rest of the switch.
The AC input connection is located on the switch directly below each installed power supply.
WARNING!
Field operators must not attempt to open the PSU enclosure for
any reason; the PSU does not contain user-serviceable parts. In
the event of failure, return the defective PSU for repair or
replacement.
Chapter 3. Power Supply Units
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