Appendix A Power Supply Specifications

400 W DC-Input Power Supply

Table A-1lists the specifications for the 400 W DC-input power supply (PWR-400W-DC).

Table A-1 400 W DC-Input Power Supply Specifications

Item

Specification

 

 

DC-input voltage

–48 VDC @ 37 A for nominal –48 V battery

 

 

backup system (operating range: –40.5 VDC to

 

 

–56 VDC)

 

 

–60 VDC @ 29 A for nominal –60 V battery

 

 

backup system (operating range: –55 VDC to

 

 

–72 VDC)

 

 

DC-input current

11 A @ -48 VDC

 

 

9 A @ -60 VDC

 

 

Power supply output capacity

400 W maximum

 

 

Power supply output

34 A @ +11.75 V

 

 

Output holdup time

4 ms

 

 

Heat dissipation

133.33 W per hour (454.92 BTU per hour)

 

 

Front panel LEDs

 

INPUT OK

Green—The source DC voltage is OK.

 

 

(-38.25 VDC or greater.)

 

 

Off—The source DC voltage has dropped below

 

 

-33 VDC or is not present.

 

 

Note In dual power supply configurations with the

 

 

alternate power supply powered up, the INPUT

 

 

OK LED may be lit red to indicate that the DC

 

 

input voltage is less than -33 VDC or that the

 

 

power supply is switched off.

FAN OK

Green—The power supply fan is operating

 

 

properly.

 

 

Red—A power supply fan failure is detected.

OUTPUT OK

Red—A problem with the DC-output voltage from

 

 

the power supply is detected.

 

 

Green—The DC-output voltage is within

 

 

acceptable margins.

 

 

Weight

4.41 lb (2.0 kg)

 

 

 

Cisco ME 6500 Series Ethernet Switch Installation Guide

 

A-2

OL-8900-03

 

 

 

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Cisco Systems ME 6500 manual Fan Ok

ME 6500 specifications

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