Catalyst 6500 Series Switches Installation Guide - Ipland

Chapter 4
Removal and Replacement Procedures
Removing and Installing the DC-Input Power Supplies
Figure 4-51
DC-Input Wire Connections for 2700-W DC-Input Power Supply, Right Side of Power
Bay
Terminal
block cover
Input power
module
Power
switch
RUN
INSTALL
CISCO SYSTEMS, INC
1 2 3 4
INPUT OK
Power leads
attached to
terminal block
( - ) Negative
(+) Positive
( - ) Negative
(+) Positive
Captive
installation
screw
FAN
OK
OUTPUT
FAIL
( ) Ground
191290
b. From the right side of the power supply, connect the DC-input wires to the terminal block (see
Figure 4-47 and Figure 4-51) in this order:
Negative (-)
Positive (+)
Note
When you tighten the terminal nuts, make sure they are snug. Do not over tighten them.
Recommended torque strength is 20 inch-pounds. Over tightening the terminal nuts can break
the terminal block (Maximum torque: 36 inch-pounds).
c. Secure outer block cover.
Note
For proper 2800W DC-input redundant power configuration, both pairs of input wires for one
6000W DC-input power supply must come from the same battery system (A feed); both pairs of
input wires for the other 6000W DC-input power supply must come from another battery system
(B feed).
OL-5781-08
Catalyst 6500 Series Switches Installation Guide
4-71