Brocade BigIron RX Series Hardware Reference Manual - Manual (Page 36)

24 Brocade BigIron RX Series Hardware Installation Guide
53-1002483-03
Installing a BigIron RX-4 switch
2
CAUTION
For the DC input circuit to the system, make sure there is a UL-Listed 30 amp circuit breaker,
minimum -48Vdc, double pole, on the input to the terminal block. The input wiring for connection
to the product should be Listed copper wire, 8 AWG, marked VW-1, and rated minimum 9
o C.
Installing a BigIron RX-4 switch
This section describes the steps you will perform to install a BigIron RX-4 switch:
• “Preparing the installation site”
• “Unpacking a BigIron RX-4 switch”
• “Chassis lifting guidelines for BigIron RX-4 switches”
• “Installing a BigIron RX-4 chassis in a rack”
• “Installing BigIron RX-4 modules”
• “Installing power supplies in a BigIron RX-4 chassis”
• “Connecting AC power to a BigIron RX-4 chassis”
• “Connecting DC power to a BigIron RX-4 chassis”
• “Final steps”
Preparing the installation site
Cabling infrastructure
Ensure that the proper cabling is installed in the site.
For information on cabling, refer to “Installing power supplies in a BigIron RX-4 chassis” on
page 30, “Attaching a management station” on page 54, and “Connecting a BigIron RX Series
switch” on page 71.
TABLE 9 The American Wire Gauge (AWG) guidelines
AWG Ohms per 100 feet Maximum Amps for chassis wiring Maximum Amps for power
transmission
5 0.3133 118 47
6 0.3951 101 37
7 0.4982 89 30
8 0.6282 73 24
9 0.7921 64 19
10 0.9989 55 15
11 1.26 47 12
12 1.588 41 9.3