Connecting the power cords

Two power supply units are located in each enclosure. Ensure that the power switches for each power supply unit are off.

Note: Each power supply unit comes with an attached cable retention bracket that fastens around the power cord to prevent the cord from being removed accidentally.

Do the following steps when you attach the power cord to each power supply unit:

  1. Straighten the cable tie on the cable retention bracket. The cable retention bracket is attached to the power supply unit.
  2. Open the cable retention bracket, refer to Figure 1.
    Figure 1. Unlocking the cable retention bracket
    This figure shows how to unlock the cable retention bracket.
  3. Slide the cable retention bracket away from the power supply unit until there is enough room to attach the cable retention bracket to the cable. When sliding the bracket away from the cable plug-in, pull the lever on the bracket that controls the cable tie slightly towards the center of the canister. You do not need to pull the lever to slide the bracket towards the cable plug-in.
  4. Attach a power cord to each of the two power supply units in each enclosure. Ensure that cables are installed in an orderly way to reduce the risk of cable damage when replaceable units are removed or inserted.
  5. Place the cable retention bracket around the end of the cable that plugs into the power supply unit.
  6. Slide the cable retention bracket along the cord until it fits snugly against the plug end of the cable. Refer to Figure 2.
    Figure 2. Sliding the cable retention bracket directly behind the power cord
    This photograph shows how you slide the cable retention bracket behind the power cord using the lever to release the cable tie.
  7. Tighten the fastener around the plug.
  8. Repeat the steps for each additional power cord.
  9. Plug the power cords into a properly grounded electrical outlet. To provide power failure redundancy, plug the power cords for the individual power supply units for each enclosure into separate power distribution units, if possible.