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Maintaining the RPS Power System

 

Removing a Power Supply from the EX Series RPS

As soon as power is connected to the middle power supply, the RPS is powered on. You can remove and replace the power supplies in the other two RPS slots without powering off the connected switch or disrupting switch functions. The power supplies in the EX Series Redundant Power System (RPS) are hot-insertable and hot-removable field-replaceable units (FRUs).

Caution

Before you remove a power supply installed in the RPS, ensure that no switch connected to the RPS needs that power.

Ensure you have the following parts and tools available to remove the power supply from the RPS:

  • Phillips (+) screwdriver, number 1

  • Replacement power supply or a cover panel for the power supply port

  • An antistatic bag or an antistatic mat

To remove a power supply from the RPS (see Figure 1):

  1. Place the antistatic bag or the antistatic mat on a flat, stable surface.
  2. Disconnect power from the AC power source outlet by performing one of the two following tasks:
    • If the AC power source outlet has a power switch, set it to the OFF position.

    • If the AC power source outlet has no power switch, gently pull the plug end of the power cord connected to the power source outlet out of the outlet.

  3. Remove the power cord from the AC appliance inlet on the power supply faceplate.
  4. Loosen the locking lever screw on the left front of the power supply by using the screwdriver.
  5. Push down on the locking lever until it is in its lowest position.
  6. Grasp the power supply handle and pull firmly to slide it halfway out of the chassis.
  7. Place one hand under the power supply to support it and slide it completely out of the chassis.
  8. Place the power supply in the antistatic bag or on the antistatic mat placed on a flat, stable surface.
  9. If you are not replacing the power supply, install the cover panel over the port.
Figure 1: Removing a Power Supply
Removing a
Power Supply

Installing a Power Supply in the EX Series Redundant Power System

The Redundant Power System (RPS) accommodates up to three EX-PWR3-930-AC hot-insertable and hot-removable field-replaceable unit (FRU) power supplies. As soon as power is connected to the middle power supply, the RPS is powered on. You can install, remove, or replace additional power supplies in the RPS without powering off the RPS or disrupting RPS functions. For ease of installation, we recommend that you install the RPS first, then install the power supplies into the RPS, starting with the middle power supply.

Before you install a power supply in the RPS chassis:

Ensure you have the following parts and tools available to install the power supply in the RPS:

  • Phillips (+) screwdriver, number 1

Note

Each RPS power supply must be connected to its own dedicated power source outlet.

Warning

An RPS has one power cord for each power supply. Disconnect all power supply cords before you service the RPS, to avoid electric shock.

Attention! Cet appareil comprote plus d’un cordon d’alimentation. Afin de prévenir les chocs électriques, débrancher tout cordon d’alimentation avant de faire le dépannage.

Install from one through three power supplies. You must first install a power supply in the middle slot to power on the RPS. You can install remaining power supplies in any order.

  1. Start with the middle power supply slot—this slot has no cover. The other two slots are shipped with covers. If you are installing a power supply in either of those slots, loosen the locking lever screw on the left of the cover panel using the screwdriver, remove the cover panel, and save it for later use.
  2. Taking care not to touch power supply components such as pins, leads, or solder connections, remove the power supply from its bag.
  3. Loosen the locking lever screw on the left front of the power supply by using the screwdriver—see Figure 2.
  4. Push down on the locking lever until it is in its lowest position—see Figure 2.
  5. Using both hands, slide the power supply into the uncovered slot on the power supply side of the RPS until it is fully seated.
    Figure 2: Installing a Power Supply in the RPS
    Installing a Power Supply in
the RPS
  6. Push the locking lever up to its highest position—see Figure 2.
  7. Tighten the locking lever screw by using the screwdriver—see Figure 2.
  8. Repeat these steps for up to three power supplies.