Cisco 6503 - Catalyst Firewall Security Sys Installation Manual page 239

Chapter 4 Removal and Replacement Procedures
Figure 4-22 Installing the Power Supply in the Chassis
P W R -2
7 0 0 -D C
/4
Power Supply 1
Determine whether you will be routing the source DC cables on the left- or right-side of the power
Step 6
supply. Loosen and remove the two screws securing the top half of the fixed cable guide on the side you
will be routing the source DC cables. Remove the top half of the cable guide and set it and the screws
aside.
Step 7 Attach the appropriate size and type of lugs to the source DC cables and the ground cable.
The maximum width of a lug is 0.300 inch (7.6 mm). The source DC cables and the ground cable must
be sized according to local and national installation requirements. Use only copper wire. The power
supply terminal block lug opening width is 0.62 inch (15.8 mm). The terminal posts are centered
0.63 inches (15.88 mm) apart and have a 1/4-20 thread. We recommend that you use an appropriately
sized industry standard 2-hole, standard barrel compression lug. The power supply ground posts also
have 1/4-20 threads and require two 1/4-inch split-ring washers and two 1/4-20 hex nuts (one for each
post).
Note
Note
Note
OL-5781-08
Power Supply 2
(redundant)
P W R -2
7 0 0 -D C
/4
+V E- 1
-V E- 1
+V E- 2
-V E- 2
AL L FA
ST EN ER
PR IO R
S MU ST
TO OP BE FU
ER AT ING
TH E PO
+V E- 1
INP UT
1
INP UT
2
+V E- 1 OK FA N
OU TP UT
48 V-6 0V OK
OK
-V E- 1 48 V-6 0V
FA IL
=4 0A
=4 0A
-V E- 1
+V E- 2
+V E- 2
-V E- 2
-V E- 2
AL L FA
ST EN ER
PR IO R S MU ST
TO OP BE FU
ER AT ING
LL Y EN
GA GE
TH E PO
WE R SU D
PP LY
For 2700 W power supplies, use fine-stranded copper conductors that are rated for 90°C Celsius
for North American installations.
For proper 2700 W DC-input redundant power configurations, all of the source DC for one
2700 W DC-input power supply must come from the same battery system (A feed); all of the
source DC for the other 2700 W DC-input power supply must come from another battery system
(B feed).
For multiple DC-input power supplies, each DC input must be protected by a dedicated circuit
breaker or a fuse. The circuit breaker or fuse must be sized according to the power supply input
rating and the local or national electrical code requirements.
Removing and Installing the DC-Input Power Supplies
INP UT
+V E- 1
1 INP UT
OK 2 FA N
OU TP UT
OK
48 V-6 0V
OK
48 V-6 0V FA IL
=4 0A
=4 0A
-V E- 1
+V E- 2
-V E- 2
LL Y EN
GA GE
WE R SU D
PP LY
Catalyst 6500 Series Switches Installation Guide
4-33