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Cisco MGX 8800/8900 Series Hardware Installation Guide
Releases 2 - 5.2, Part Number OL-4545-01, Rev. H0, May 2006
Chapter1 Product Overviews
Cisco MGX 8880 Media Gateway
For more information about DC power requirements, see the “Power Requirements” section on
page 3-62.
Exhaust Plenum/Fan Tray
The 2RU exhaust plenum/fan tray for the MGX 8880 is installed above the chassis (see Figure 1-46 for
location). The plenum/fan tray pulls air up through the modules to cool the modules . Then the air is
forced out of the exhaust plenum/fan tray, as shown in Figure 1-49.
Caution If a fan tray fails, replace it immediately.
MGX 8880 Redundancy Connector
The MGX 8880 Media Gateway ships with two built-in redundancy connectors (RCONs). These RCONs
are installed on the upper right and lower right bays of the c hassis when viewed from the rear, They
support cards in slots 1–6 and 17–22. These RCONs are keyed to ensure cards are inserted properly (see
Figure 1-53).
Figure1-53 RCON-1TO5-8850 RCON Connector

How the Built-in MGX 8880 Redundancy Connector Affects Module Configurations

You can order two more connectors (RCON-1TO5-8850) for the upper left and lower left bays, if you
wish to fill the entire chassis with redundant connectors.
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