Dell Force10 S55 Podręcznik - Strona 28

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NOTE: For a NEBS compliant installation, the AC power connections must use a surge protection device

(SPD) to protect the AC power supplies from damage to excessive power line surges.

NOTE: To comply with the GR-1089 Lightning Criteria for Equipment Interfacing with AC Power Ports, an

external surge protection device (SPD) is intended to be used at the AC input of the router.

WARNING: Prevent exposure and contact with hazardous voltages. Do not attempt to operate this system

with the safety cover removed.

CAUTION: The DC power supply comes with a 6-8inch cord with a snap-in plug that attaches to the DC

power supply and screw terminals that attach to the main power. Dell Force10 recommends using a longer

cable, to ensure sufficient room.

CAUTION: Note is that the power supply is marked + 48V - . Connect the + (plus sign) to the red cable on the

6-8 inch cord; the - (minus sign) connects to the black cable. BE SURE TO to connect the RED to RETURN

and connect the BLACK to -48V.

Power Supply 0 (PSU0) is on the left; Power Supply 1(PSU1) is on the right.

Figure 5-1. DC Power Supply

PSU0

Figure 5-2. AC Power Supply

PSU0

To install a new power supply, follow the steps below:

The power supply modules should slide into the slots smoothly. Do not force a module into a slot. This

may damage the power supply or the S55 chassis.

Step

Task

Take the power supply unit out of the shipping box.

Power Supplies

Fan Module

Optional Module

Cable

Connector