Cisco Systems 3560-X, 3750-X manual Switch Power Supply Modules

Chapter 1 Product Overview

Rear Panel Description

•CAB-STACK-50CM-NH= (0.5-meter cable, nonhalogen)

•CAB-STACK-1M-NH= (1-meter cable, nonhalogen)

•CAB-STACK-3M-NH= (3-meter cable, nonhalogen)

Power Supply Modules

The 24- and 48-port switches are powered through one or two internal power supply modules. The “Switch Power Supply Modules” section on page 1-17and Table 1-16describe the supported power supply modules.

Switch Power Supply Modules

The switch has two internal power supply module slots. You can use two AC modules, two DC modules, a mixed configuration of one AC and one DC power supply module, or one power supply module and a blank module.

The switch can operate with either one or two active power supply modules or with power supplied by an XPS-2200. A Catalyst 3750-X switch that is in a StackPower stack can operate with power supplied by other switches in the stack.

Table 1-1and Table 1-2show the power supply modules that ship with each switch model. All power supply modules (except the blank modules) have internal fans. All switches ship with a blank power supply module in the second power supply slot.

Caution Do not operate the switch with one power supply module slot empty. For proper chassis cooling, both power supply module slots must be populated.

The 350-W and 715-W AC power supply modules are autoranging units that support input voltages between 100 and 240 VAC. The 1100-W power supply module is an autoranging unit that supports input voltages between 115 and 240 VAC. The 440-W DC power supply module has dual input feeds (A and B) and supports input voltages between 36 and 72 VDC. The output voltage range is 51–57 V.

Each AC power supply module has a power cord for connection to an AC power outlet. The 1100-W and 715-W modules use a 16-AWG cord (only North America). All other modules use an 18-AWG cord. The DC-power supply module must be wired to a DC-power source.

The XPS-2200 powers connected switches when the power supply is removed or fails. When a new switch power supply is installed, the switch software polls the device. The switch power supply again provides power, and the XPS-2200 is available to power other devices.

Table 1-16shows the power supply modules available for Catalyst 3750-X and 3560-X switches and power supply configurations based on switch models.

	Table 1-16	Switch Power Supply Modules
					48-Port	24-Port
			48-Port PoE+	24-Port PoE+	Non-PoE+	Non-PoE+
	Power Supply Module		Switch1	Switch	Switch	Switch
	C3KX-PWR-1100WAC=		Primary or spare	Spare	Spare	Spare
	C3KX-PWR-1100WAC-JP=2
	C3KX-PWR-715WAC=		Spare	Primary or spare	Spare	Spare
			Catalyst 3750-X and 3560-X Switch Hardware Installation Guide
OL-19593-01							1-17