4-25
Catalyst 6500 Series Switches Installation Guide
OL-5781-08
Chapter 4 Removal and Replacement Procedures
Removing and Installing the DC-Input Power Supplies
Step 7
Attach the appropriate lugs to the DC-input wires. The maximum width of a lug is 0.300 inch (7.6 mm).
Note
The wire should be sized according to local and national installation requirements and electrical
codes. Use only copper wire. For North American installations of 2500 WDC-input power
supplies, use fine-stranded copper conductors rated for 90°C.
Step 8
Attach the source DC cables to the terminal block (see
Figure 4-16
for the 1300 W DC power supply or
Figure 4-17
for the 2500 W DC power supply) in this order:
1.
Source ground cable to the power supply terminal block ground post
2.
Source DC negative (–) cable to the power supply terminal block negative (–) post
3.
Source DC positive (+) cable to the power supply terminal block positive (+) post
Note
The terminals on the 1300 W DC power supply DC power cable terminal block are labeled (from
top to bottom) +, –, ground. The terminals on the 2500 W DC power supply DC power cable
terminal block are labeled (from top to bottom) –, +, ground.
Step 9
After ensuring that all wire connections are secure, reinstall the terminal block cover.
Caution
To prevent a short circuit or shock hazard after wiring the DC-input power supply, you must reinstall the
terminal block cover.
Caution
In a system with dual power supplies, connect each power supply to a separate power source. In case of
a power source failure to one supply, the second power source should still be available.
Step 10
Remove any safety flag and lockout devices or any tape from the circuit breaker switch handle, and
restore power by moving the circuit breaker switch handle to the on (|) position.
Step 11
Turn the power switch to the on (|) position on the power supply. Turning on the power switch also
engages a pawl that locks the power supply in the chassis.
Step 12
Verify the power supply operation by ensuring that the power supply front panel LEDs are in these states:
•
INPUT OK LED is green
•
FAN OK LED is green
•
OUTPUT FAIL LED is not lit
If the LEDs indicate a power problem, see the
“Identifying Startup Problems” section on page E-3
.
