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MGX 8230 System Overview
Figure 1-5
Cooling System
The MGX 8230 incorporates a fan tray assembly (with eight fans) located on the left side of the card
cage to pull ambient cooling air into the system through openings between front card faceplates, over
the boards in the card cage, and out through air exhaust openings on the left side of unit. Figure 1-6 is
an illustration of the MGX 8230 fan tray assembly. The cooling system incorporates the following design
features:
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Cisco MGX 8230 Edge Concentrator Installation and Configuration
1-8
MGX 8230 DC Power Entry Module
-48 VDC fans with rotation sensing
N+1 fan redundancy
Hot pluggable (if done quickly) Fan Tray Assembly
Noise level < 65 dBA
Chapter 1
Introducing the MGX 8230
Release 1.1.31, Part Number 78-11215-03 Rev. B0, May 2001
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