2-16
Section 2 — Installation
Switcher Frame Redundant Power Supply Installation The Redundant Power Supply Option consists of the following
components:
■Power Supply Chassis (identical to the Frame Power Supply)
■Pair of Red cables
■Pair of Black cables
■2 Threaded Standoffs
■4 Lock Washers
■2 Nuts
WARNING
To reduce the risk of electric shock, do not perform any servicing other than
that contained in the operating instructions unless you are qualified to do so.
Perform the following procedure to install the redundant Power Supply.
1. Ensure that the Primary and Redundant Power Supplies are
disconnected from all power sources.
2. Remove the rear panel access covers (right and left sides) of the
Redundant and (if necessary) the Primary Power Supply.
3. Remove the hex nuts and lock washers that secure the red and black
power cables on the Primary power supply. Do not discard. (Leave the
cables positioned over their respective studs.)
4. Install the new lock washers and posts over the threaded ends of the
existing studs. Using a deep well 3/8 in (10mm) socket and torque
wrench, torque the posts to 80 inch pounds (6.7 foot pounds)
(9 Newton Meters).
5. Remove the connector and cable slot covers from the bottom of the
Primary Power Supply (see Figure 2-10).
6. Mount the Redundant Power Supply chassis underneath the Primary
Power supply in the same manner as the Primary Power Supply was
installed (see Step 3 through Step 9 of the previous section).
7. Tighten the 8 captive screws that secure the Redundant chassis to the
Primary chassis