Figure 5-11 Lower Fan Tray Air Flow Direction; Install The Mgx 8850 Or Mgx 8850/B Switch Without A Mechanical Lift - Cisco MGX MGX 8800 Hardware Installation Manual

Chapter 5 Installing the Cisco MGX Switch or Gateway
Ensure that the air flow direction arrow on the back of the lower fan tray is pointing up, as shown in
Figure
Figure 5-11
Step 3 Use four mounting screws and a Phillips-head screwdriver to bolt the lower fan tray in the rack. See
Figure 5-5
Step 4 If you are installing the fan tray in a 19-inch cabinet, attach the rear-mounting brackets to the rack and
use screws to secure the fan tray to the rear-mounting brackets.

Install the MGX 8850 or MGX 8850/B Switch without a Mechanical Lift

Because of the risk of damage to the cards, modules, and backplane, it is strongly recommended that a
Caution
mechanical lift be used. Using a lift greatly simplifies the installation and reduces the risk of damage.
See
more information about installing the MGX 8850 or MGX 8850/B switch with a mechanical lift.
If a mechanical lift is not available for installation, the switch must be manually lifted into place. Since
the switch is shipped with all components preinstalled, you must remove the cards and modules from the
switch so that you can lift it into the rack.
The following sections contain instructions for installing a switch without the use of a mechanical lift:
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Tip If a component requires more than two screws for installation in the rack or cabinet, install the two
bottom screws first.
Releases 2 - 5.2, Part Number OL-4545-01, Rev. H0, May 2006
Installing the MGX 8850 (PXM1E/PXM45) Switch, MGX 8850/B or MGX 8880 Media Gateway
5-11.
Lower Fan Tray Air Flow Direction
UP
AIR FLO W
DIRE CTIO N
for the correct placement of the lower fan tray.
"Install the MGX 8850 or MGX 8850/B Switch with a Mechanical Lift" section on page 5-30
Prepare for Installation, page 5-22
Remove the Front Cards, page 5-22
Remove the Back Cards, page 5-23
Remove the Back Cards from an APS Assembly, page 5-24
Install the Switch in the Rack, page 5-24
Install the Switch in a 19-Inch or 23-Inch Rack, page 5-25
Install the Switch in a 19-Inch Cabinet, page 5-25
Reinstall the APS Assembly, page 5-26
Reinstall the Back Cards, page 5-27
Reinstall the Front Cards, page 5-29
Cisco MGX 8800/8900 Series Hardware Installation Guide
for
5-21