Installation guide

CAUTION
For the DC input circuit to the system, make sure there is a 20 Amp circuit breaker, minimum
60 VDC, double pole, on the input terminal block to the power supply. The input wiring for
connection to the product should be copper wire, 12 AWG, marked VW-1, and rated minimum
90°C.
CAUTION
For DC system, use grounding wire of at least 12 American Wire Gauge (AWG). The grounding
wire should be attached to the DC input connector; the other end connects to the building
ground.
NOTE
AC and DC power supplies cannot be installed and used in the same device. Mismatched power
supplies in the same device cause continual reboot on power up.
FIGURE 16 DC power supply unit
You need a #2 Phillips screwdriver and a flat-head screwdriver for installation.
Brocade recommends using an ESD wrist strap during installation.
DANGER
For safety reasons, the ESD wrist strap should contain a series 1 megaohm resistor.
1. Remove the previously installed power supply from the appropriate slot by removing the chassis
attachment screws located in the upper right and lower left of the power supply unit using a flat-
head screwdriver.
Installing the Brocade ICX 6650
36 Brocade ICX 6650 Hardware Installation Guide
53-1003398-01