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Cisco ASR 9000 Series Aggregation Services Router Overview and Reference Guide
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Chapter 1 Overview and Physical Description
Power System
AC and DC Power ModulesEach AC or DC power tray houses up to four power modules.
• The AC and DC power trays in the Cisco ASR 9006 Router and Cisco ASR 9904 Router provide
N+1 redundancy.
• The AC power trays in the Cisco ASR 9010 Router, Cisco ASR 9922 Router, and Cisco ASR 9912
Router provide N+N redundancy. The DC power trays provide N+1 redundancy.
The power trays drive a single output bus that delivers –54 V to all cards and fan trays that are plugged
into the backplane.
Figure 1-29 shows a front view of six version 1 power modules in the Cisco ASR 9010 Router.
Figure 1-29 Front System View of Power Trays—Cisco ASR 9010 Router with Version 1 Power
Tray s
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