Cisco Systems OL-7821-04 Removing and Replacing a Power Supply Unit, Power Supply Specifications

Chapter 4 Installation and Maintenance

Removing and Replacing a Power Supply Unit

Power Supply Specifications

The following table lists the AC-input and DC-input power supply specifications for the SCE

1000 platform:

Table 4-7	SCE 1000 Power Supply Specifications
AC-input power		200W maximum
AC-input voltage rating		100 to 240 VAC
AC-input current rating		Rated for 4.5A when Vin = 100 VAC or 2A when Vin = 200 VAC
AC-input frequency rating		50 to 60 Hz
AC-input cable		18 AWG three-wire cable, with a three-lead IEC-320 receptacle on
		the power supply end, and a country-dependent plug on the power
		source end.
DC-input power		200W maximum
DC-input voltage rating		–48/-60 VDC nominal (–36 to–72 VDC supply tolerance)
DC-input current rating		7A at –48 VDC
DC-input cable		12 AWG or 2.5-mm copper installation wire with hex or loop
		connectors
DC-input circuit breaker		One Fast 10A for each power supply unit

Note For AC-input power, we recommend powering the SCE 1000 platform from a 120 VAC, 15A receptacle U.S. (240 VAC, 10A international) at the power source.

Removing and Replacing a Power Supply Unit

The procedures for removing and replacing the AC-input or DC-input power supply are explained in the following sections:

•Powering Down the Power Supply Unit and Disconnecting Input Power (on page 4-15)

•Removing the Power Supply Unit (on page 4-16)

•Replacing the Power Supply Unit (on page 4-17)

•Reconnecting the Power (on page 4-17)

ESD Warning Do not remove or install modules without using appropriate anti-static guard measures. The SCE 1000 includes an anti-static wrist strap in the accessory kit. Attach the copper tape strap to an unpainted metal surface on the chassis. You may leave the strap connected to the chassis when your have finished.

Cisco SCE 1000 2xGBE Installation and Configuration Guide

4-14 OL-7821-04