Broadcom Brocade G620 - Connecting a DC Power Cord to a 250 W DC Power Supply

53-1003990-22 Installation Guide Brocade
®
G620 Switch Hardware Installation Guide
Connecting a DC Power Cord to a 250W DC Power Supply
Perform the following steps to connect a DC power cord to a 250W DC power supply:
1. Remove the DC wiring assembly from the front of each DC power supply.
Figure 38: DC Wiring Assembly
1. Wire Tightening Screws
2. DC Power Source Wires
3. Earth Ground Wire
2. Loosen the wire tightening screws and insert the wires from the DC power source into the wiring assembly. Connect
the –48V source cable to the negative terminal and the 0V cable to the positive terminal as marked on the harness
assembly.
3. Tighten the wire tightening screws and reinstall the wiring assembly onto the power supply.
4. Connect the wires from the power supply wiring assembly to your DC power source. See Precautions Specific to the
Power Supply and Fan Assemblies.
5. Follow these additional precautions when making connections to DC power supplies:
NOTE
The equipment installation must meet NEC/CEC code requirements. Consult local authorities for regulations.
CAUTION
For the DC input circuit to the system, make sure there is a 10-Amp circuit breaker, a maximum of 60 VDC,
double pole, on the input terminal block to the power supply. The input wiring for connection to the product
must be copper wire, 16 AWG, marked VW-1, and rated a minimum of 90°C.
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