Cisco Systems WSC4500XF16SFP User Manual download pdf (Page 61)

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Catalyst 4500 Series Switches Installation Guide

78-14409-08

Chapter 1 Product Overview

Power Supplies

The maximum total input current is 42.5A and the maximum ambient temperature

is 55 C. To determine total maximum input power to a supply, add up the active

individual module input power ratings. Table 1-9 provides output information for

these modes, given two supplies working in combined mode. Table 1-10 provides

output information for these modes, given two supplies working in redundant

mode.

Note In a redundant configuration with all inputs supplied, there must be a 100 W

minimum system load or the OUTPUT FAIL LED shows a false failure.

The C4500 1400 W DC Triple Input SP Power Supply requires a minimum draw

from the system that it is installed in. Table 1-11 shows

Table 1-9 Combined Mode Power Supply Configuration

(2450 W Max Output Power)

Input

Number Maximum Input Current

Maximum Input

Power @ –44 V DC

1 12.5 A @ –44 V DC 550 W

2 15 A @ –44 V DC 660 W

3 15 A @ –44 V DC 660 W

Table 1-10 Dual Redundant Mode Power Supply Configuration

(1400 W Max Output Power)

Input

Number

Approximate

Input Current

Approximate Input

Power @ –40.5 V DC

Approximate Input

Power @ –44 V DC

16.25 A @

–40.5 / –44 V DC

253 W 275 W

2 7.5 A @ –40.5 /

–44 V DC

304 W 330 W

3 7.5 A @ –40.5 /

–44 V DC

304 W 330 W

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Cisco Systems WSC4500XF16SFP User Manual Page 61