Connecting Power and Replacing Power Supply

To reduce the risk of electric shock or energy hazards:

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This equipment must be installed by trained service personnel, as defined by the NEC and IEC 60950-1, Second Edition, the standard for Safety of Information Technology Equipment.

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Connect the equipment to a reliably grounded secondary circuit source. A secondary circuit has no direct connection to a primary circuit and derives its power from a transformer, converter, or equivalent isolation device.

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Connect both power supply modules (1 and 2). Connect each module to a different AC power source. Two power supplies provide 1+1 load-sharing and redundancy. The AC power sockets are located on the device's rear panel.

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Ensure that both AC power sources have the same ground potential.

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Connect the device to a socket outlet that has a protective earth connection.

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Use only the certified 3-conductor power cord supplied with the unit.

To reduce the risk of personal injury from hot surfaces, let the power supply or power supply blank to cool before touching it.

Before you remove a power supply module:

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Disconnect the power cord from the module.

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After you disconnect the power cord, wait at least three seconds for the capacitors to discharge.