Cisco 6503 - Catalyst Firewall Security Sys Installation Manual page 277

Chapter 4 Removal and Replacement Procedures
Figure 4-51
Input power
module
From the right side of the power supply, connect the DC-input wires to the terminal block (see
b.
Figure 4-47
Note
Secure outer block cover.
c.
Note
OL-5781-08
DC-Input Wire Connections for 2700-W DC-Input Power Supply, Right Side of Power
Bay
Terminal
block cover
Power
CI SC O SY
ST EM S, IN
C
switch
Captive
installation
screw
and Figure 4-51) in this order:
Negative (-)
Positive (+)
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).
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).
Removing and Installing the DC-Input Power Supplies
1
2
3
IN PU T
OK 4
FA N
OK OU TP UT
FA IL
( ) Ground
Catalyst 6500 Series Switches Installation Guide
Power leads
attached to
terminal block
( - ) Negative
(+) Positive
( - ) Negative
(+) Positive
4-71