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Cisco MGX 8950 Hardware Installation Guide
Release 3, Part Number 78-14147-02 Rev. A0, November 2002
Chapter 3 Installing a Cisco MGX 8950
Installation Procedures
Install the Upper Fan Tray
Complete the following steps to install the upper fan tray:
Tip
If a component requires more than two screws to install it in the rack or cabinet, install the two bottom
screws first.
Step 1
Place the upper fan tray on a flat and stable surface (for example, a table top) and use mounting screws
and a Phillips-head screwdriver to attach the front-mounting brackets to the upper fan tray if you are
installing the system in a 23-inch rack.
Step 2
Place the upper fan tray on a flat and stable surface (for example, a table top) and use mounting screws
and a Phillips-head screwdriver to attach the mid-mounting brackets to the upper fan tray if you are
installing the system in a 19-inch rack.
Step 3
Position the upper fan tray, which occupies 1 RU of space, directly above the Cisco MGX 8950 switch.
Ensure that the air flow direction arrow on the back of the upper fan tray is pointing up, as shown in
Figure 3-14 Fan Tray
Step 4
Use four mounting screws and a Phillips-head screwdriver to bolt the upper fan tray in the rack. See
for the correct placement of the upper fan tray. Verify that the base at the back aligns with the
top-rear edge of the card cage.
Install the Exhaust Plenum
Complete the following steps to install the exhaust plenum:
Tip
If a component requires more than two screws to install it in the rack or cabinet, install the two bottom
screws first.
Step 1
Place the exhaust plenum on a flat and stable surface (for example, a table top) and use mounting screws
and a Phillips-head screwdriver to attach the front-mounting brackets to the exhaust plenum if you are
installing the system in a 23-inch rack.
Step 2
Place the exhaust plenum on a flat and stable surface (for example, a table top) and use mounting screws
and a Phillips-head screwdriver to attach the mid-mounting brackets to the exhaust plenum if you are
installing the system in a 19-inch rack.
Step 3
Position the exhaust, which occupies 3 RUs of space, directly above the upper fan tray.
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UP
AIR FLOW
DIRECTION
