Cisco Systems 124778 User Manual

1-6

Cisco AC/DC Power System User Guide, R1.0

May 2006

Chapter 1 Introduction

1.1.6 General Specifications

Table 1-2

provides cabling specifications for the Cisco AC/DC Power System.

Table 1-3

provides electrical specifications for the Cisco AD/DC Power System.

Table 1-4

provides protection specifications for the Cisco AC/DC Power System.

Table 1-1

System Configurations

Configuration

Rectifiers

Distribution

Output at
220V AC

Output at
110V AC

Small Systems

2 CSCO-PWR-RECT Modules

10-position GMT Fuse
Block

32A

13.3A

Medium Systems

3 CSCO-PWR-RECT Modules

10-position GMT Fuse
Block

4- position 1RU DC
Distribution Shelf

64A

26.6A

Large Systems

4 CSCO-PWR-RECT Modules

10-position GMT Fuse
Block

4- position 1RU DC
Distribution Shelf

96A

40A

Table 1-2

Cabling Specifications

From

Wire Gauge

Ampacity

System Shelf

1U DC Distribution
Shelf

4 x 6AWG (16mm²)

(intra-shelf cabling)

96A (max)

Circuit Breakers

Load

10 - 8AWG

(6mm² - 10mm²)

30A (max)

GMT Fuse Block

Load

16 - 14AWG

(1.5mm² - 2.5mm²)

15A (max)

AC Service Panel

System Shelf

3 conductor 14AWG
(2.5mm²) per AC input

9.1A x (4) inputs

<37A Total

Table 1-3

Electrical Specifications

Electrical

Value

Input Voltage

(A) 100-120VAC
(B) 200-250VAC

Input Frequency

44-66 Hz.

Transient Response

+/- 4%, recovery time 2ms

Load Sharing

+/- 5% of nominal current