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DC power supply option

Adding an additional power supply provides redundant power support to the unit if the primary power supply fails. You do not have to power down the server before removing or installing a redundant hot-plug power supply.

WARNING: To reduce the risk of electric shock, fire, and damage to the equipment, you must install this product in accordance with the following guidelines:

  • This power supply is intended only for installation in Hewlett Packard Enterprise servers located in a restricted access location.
  • This power supply is not intended for direct connection to the DC supply branch circuit. Only connect this power supply to a power distribution unit (PDU) that provides an independent overcurrent-protected output for each DC power supply. Each output overcurrent-protected device in the PDU must be suitable for interrupting fault current available from the DC power source and must be rated no more than 60A.
  • The PDU output must have a shut-off switch or a circuit breaker to disconnect power for each power supply. To completely remove power from the power supply, disconnect power at the PDU. The end product may have multiple power supplies. To remove all power from the product, disconnect the power for each power supply.
  • In accordance with applicable national requirements for Information Technology Equipment and Telecommunications Equipment, this power supply only connects to DC power sources that are classified as SELV or TNV. Generally, these requirements are based on the International Standard for Information Technology Equipment, IEC 60950-1. In accordance with local and regional electric codes and regulations, the DC source must have one pole (Neutral/Return) reliably connected to earth ground.
  • You must connect the power supply ground screw located on the front of the power supply to a suitable ground (earth) terminal. In accordance with local and regional electric codes and regulations, this terminal must be connected to a suitable building ground (earth) terminal. Do not rely on the rack or cabinet chassis to provide adequate ground (earth) continuity.

WARNING: To reduce the risk of personal injury from hot surfaces, observe the thermal labels on each power supply or module.

WARNING: To reduce the risk of injury from electric shock hazards, do not open power supplies. Refer all maintenance, upgrades, and servicing to qualified personnel.

WARNING: Remove power from the power supply before performing any installation steps or maintenance on the power supply.

CAUTION: Electrostatic discharge (ESD) can damage electronic components. Be sure that you are properly grounded (earthed) before beginning any installation procedure.

The following optional input can be purchased from an authorized reseller:

J6X42A—3 m (9.85 ft) 48 VDC Power Cable Kit

If you are not using an optional input cable, then cabling should be made in consultation with a licensed electrician and be compliant with local code.

To install the component:

  1. Remove the blank.

    Removing the power supply blank

  2. Remove the ring tongue from the top of the PSU.

    Removing the ring tongue from the PSU

  3. Crimp the ring tongue to the ground cable from the 48 V power source.

    Crimping the ring tongue to ground cable

  4. Remove the black connector from the rear of the PSU.

    Removing the black connector from rear of PSU

  5. Loosen the screws on the connector.

    Loosening the screws on the connector

  6. Attach the ground (earthed) wire to the ground screw and washer and tighten to 13 lb-in of torque. The ground wire must be connected before connecting the positive or negative lead wires.

    Attaching the ground wire to the ground screw

  7. Insert the wires into the connector block and tighten the screws to 10 lb-in of torque.

    Inserting the wires into the connector block

  8. Insert the connector into the PSU.

    Inserting the connector into the PSU

  9. Attach the cables to the power supply handle with the hook-and-loop strap.

    Attaching the cables to the power supply handle

  10. Insert the power supply into the power supply bay until it clicks into place.

    Inserting the power supply into the power supply bay

  11. Route the power cord. Use best practices when routing power cords and other cables. A cable management arm is available to help with routing.
  12. Make sure the 48 V DC power source is off or the PDU breaker is in the off position, and then connect the power cord to the 48 VDC power source or PDU.
  13. Turn on the 48 V power source or switch the PDU breaker to the on position to supply 48 V to the power supply.
  14. Be sure that the green power supply LED is on.