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Chapter 4 Installation and Maintenance
Removing and Replacing a Power Supply Unit
Cisco SCE 1000 2xGBE Installation and Configuration Guide
4-14 OL-7821-05
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.