Catalyst 6500 Series Switches Installation Guide - Ipland

CISCO SYSTEMS, INC
1 2 3 4
INPUT OK
FAN
OK
Removing and Installing the DC-Input Power Supplies
Chapter 4
Removal and Replacement Procedures
b. From the right side of the power supply, connect each of the DC-input wires to the terminal block
(Figure 4-47 and Figure 4-53) 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).
Note
For proper 6000W DC-input redundant power configuration, all four pairs of input wires for one
6000W DC-input power supply must come from the same battery system (A feed); all four pairs
of input wires for the other 4000W DC-input power supply must come from another battery
system (B feed).
Note
For multiple DC input power supply, each DC input must be protected by dedicated circuit
breaker or fuse. The circuit breaker or fuse should be sized according to the power supply input
rating and local or national electrical code requirements.
Warning When installing the unit, always make the ground connection first and disconnect it last. Statement 42
Caution
Step 12
To prevent a short circuit or shock hazard after wiring the DC-input power supply, reinstall the terminal
block covers.
If you are installing a previously-wired IPM, insert the IPM firmly into the power supply and tighten the
IPM captive screws. (See Figure 4-54.)
Figure 4-54
Inserting Previously-Wired IPM (2700W DC-input shown)
RUN
INSTALL
OUTPUT
FAIL
191292
4-74
Catalyst 6500 Series Switches Installation Guide
OL-5781-08