CHAPTER
3-1
Catalyst 3750-E and Catalyst 3560-E Switch Hardware Installation Guide
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3
Power Supply and Fan Module Installation
This chapter describes how to remove and install a new or replacement power supply or fan module in
a Catalyst 3750-E or Catalyst 3560-E switch. See these sections:
• Installation Overview, page 3-1
• Installing an AC-Power Supply, page 3-3
• Installing a DC-Power Supply, page 3-4
• Installing a Fan Module, page 3-10
Installation Overview
This section describes the tools and equipment needed for installation, the applicable safety warnings,
and the installation guidelines:
• Tools and Equipment, page 3-1
• Installation Guidelines, page 3-1
Tools and Equipment
Obtain these necessary tools and equipment:
• Ratcheting torque screwdriver with a number-2 Phillips head that exerts up to 15 pound-force inches
(lbf-in.) or 240 ounce-force inches (ozf-in.) of pressure. For 1150-W power-supply modules, the
screwdriver shaft length should be at least 6-inches long.
• Power-supply power-cord retainer assembly in the switch accessory kit.
Installation Guidelines
Table 1-11 and Table 1-13 list the switches and the compatible power-supply modules. Observe these
guidelines when removing or installing a power supply or fan module:
• Do not force the power supply or fan module into the slot. This can damage the pins on the switch
if they are not aligned with the module.
• A power supply or fan module that is only partially connected to the switch can disrupt the system
operation.
