Cisco MGX 8950 Installation Manual page 17

Chapter 3 Installing a Cisco MGX 8950
Figure 3-8
Grip the handle and carefully remove the AC power supply by pulling it toward you.
Step 6
Repeat
Step 7
Install the AC Power Tray
For optimum performance, Cisco recommends installing dual AC power systems for full redundancy.
Note
Perform the following steps to install the AC power trays:
Use mounting screws and a Phillips-head screwdriver to attach the front-mounting brackets to the AC
Step 1
power supply tray if you are installing the system in a 23-inch rack.
Use mounting screws and a Phillips-head screwdriver to attach the mid-mounting brackets to the AC
Step 2
power supply tray if you are installing the system in a 19-inch. Insert each mounting screw from the
inside of the AC power supply tray so that the nut is on the outside of the tray.
Position the AC power supply tray, which occupies 3 RUs of space, at the bottom of the rack.
Step 3
Use four mounting screws and a Phillips-head screwdriver to bolt the AC power supply tray in the rack.
Step 4
See
While you secure the front of the AC power supply tray with the front screw, hold the adjacent front
Step 5
flange of the tray slightly to the outside so that the hinged door can freely open and close. (See "Front
flange" in
door should be approximately 0.030 inches (about the thickness of a thumbnail).
Release 3, Part Number 78-14147-02 Rev. A0, November 2002
AC Power Supply
W
1 2 0 0
Step 5 and Step 6 for each AC power supply present in each AC power supply tray.
Figure 3-4 for the correct placement of the AC power supply tray.
Figure 3-9.) The space between the right-angle edge of the flange and the edge of the hinged
DC okay LED
AC okay LED
Handle
Captive screw
Cisco MGX 8950 Hardware Installation Guide
Installation Procedures
3-17