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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 Modules
Each 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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