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Maintaining the EX6210 Power System

 

Removing an AC Power Supply from an EX6200 Switch

The AC power supply in an EX6200 switch is a hot-removable and hot-insertable field-replaceable unit (FRU). You remove AC power supplies from the front of the chassis.

Caution

Before you remove a power supply, ensure that you have power supplies in the chassis sufficient to power the switch. See Calculating Power Requirements for an EX6210 Switch.

Before you remove an AC power supply from the switch:

Ensure that you have the following parts and tools available to remove an AC power supply from an EX6200 switch chassis:

  • ESD grounding strap

  • Phillips (+) screwdriver, number 2

  • Replacement power supply or the appropriate cover panel for the power supply slot

Caution

Do not leave the power supply slot empty for a long time while the switch is operational. Either replace the power supply promptly or install the appropriate cover panel over the empty slot.

To remove an AC power supply from an EX6200 switch (see Figure 1 and Figure 2):

  1. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.
  2. Flip the Enable switch on the power supply faceplate to the Standby position.
  3. Disconnect power from the power supply 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 does not have a power switch, gently pull the male end of the power cord connected to the power source outlet out of the outlet.

  4. Remove the power cord from the AC appliance inlet on the AC power supply faceplate. Note

    The 5000 W AC power supply has two AC appliance inlets. You must remove power cords from both appliance inlets, if connected, to completely disconnect power from the power supply.

  5. Turn the adjustment nut of the power cord retainer counterclockwise till you can see the power cord. Pull the power cord out of the slot in the adjustment nut.
  6. Squeeze the two sides of the power cord retainer clip, and remove the L-shaped ends of the clip from the holes around the AC appliance inlet to completely remove the power retainer clip.
  7. Repeat Steps 4 through 6 if a power cord is installed in the second appliance inlet on the 5000 W AC power supply.
  8. Unscrew the two captive screws counterclockwise using the screwdriver, till they are completely unseated.
  9. Taking care not to touch power supply components, pins, leads, or solder connections, place one hand under the power supply to support it. Grasp the power supply handle with your other hand and pull the power supply completely out of the chassis.
  10. If you are not replacing the power supply, install the correct power supply cover panel over the slot, using the screwdriver to tighten the captive screws on the front top of the cover panel.Note

    The power supply cover panels for the 2500 W AC power supply and 5000 W AC power supply are different. You must use the correct power supply cover panel to ensure power airflow of the power supplies installed in the switch. See AC Power Supplies in an EX6200 Switch for details about the different power supply cover panels.

    Caution

    Do not overtighten the screws. Applying excessive force might damage the screws or power supply.

Figure 1: Removing a 2500 W AC Power Supply from an EX6200 Switch
Removing a 2500 W AC
Power Supply from an EX6200 Switch
Figure 2: Removing a 5000 W AC Power Supply from an EX6200 Switch
Removing a 5000 W AC Power Supply
from an EX6200 Switch

Installing an AC Power Supply in an EX6200 Switch

The AC power supply in an EX6200 switch is a hot-insertable and hot-removable field-replaceable unit (FRU). Up to four AC power supplies can be installed in an EX6200 switch. All AC power supplies install in the front of the chassis in the slots provided at the bottom. See Slot Numbering for an EX6210 Switch.

Caution

Mixing different types of power supplies (AC and DC or AC power supplies of different wattage) in the same chassis is not supported.

Mixing low-voltage input line and high-voltage input line power feeds in the same chassis is not supported.

Before you install an AC power supply in the switch:

Ensure that you have the following parts and tools available to install an AC power supply in an EX6200 switch chassis:

  • ESD grounding strap

  • Phillips (+) screwdriver, number 2

Note

Each AC power supply must be connected to a dedicated AC power source feed.

To install an AC power supply in an EX6200 switch (see Figure 4 and Figure 5):

  1. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.
  2. Determine which power supply you will install in the switch:
    • If you are installing 2500 W AC power supplies in the switch, do not remove the power supply blank shelf (see Figure 3 ) from the switch. If the power supply blank shelf is not installed in the chassis, install it before installing the power supplies.

    • If you are installing 5000 W AC power supplies in the switch, remove the power supply blank shelf (see Figure 3 ) from the switch by unscrewing the three screws on the faceplate of the shelf with the screwdriver. Save the power supply blank shelf for later use.

    Figure 3: Power Supply Blank Shelf on an EX6200 Switch with 2500 W AC Power Supplies
    Power Supply Blank
Shelf on an EX6200 Switch with 2500 W AC Power Supplies
  3. If the power supply slot has a cover panel on it, unscrew the two captive screws on the front top of the cover panel in the counterclockwise direction using the screwdriver, and remove the cover panel. Save the cover panel for later use.
  4. Taking care not to touch power supply components, pins, leads, or solder connections, remove the power supply from its bag.
  5. Flip the Enable switch next to the AC appliance inlet on the power supply to the Standby position.
  6. Using both hands, place the power supply in the power supply slot on the front of the switch. Slide the power supply straight into the chassis until the power supply is fully seated in the slot. Ensure the power supply faceplate is flush with any adjacent power supply faceplates or power supply cover panels. Note

    Power supplies can be installed in any slot. You need not install the power supplies in serial order.

  7. Push the two captive screws on the front top of the power supply into the power supply faceplate. Ensure that the screws are seated inside the corresponding holes on the chassis.
  8. Tighten the captive screws by turning them clockwise using the screwdriver. Caution

    Do not overtighten the screws. Applying excessive force might damage the screws or power supply.

    When the screws are tight enough, the power supply locks into the switch chassis.

To connect power to an AC power supply, see Connecting AC Power to an EX6200 Switch.

Figure 4: Installing a 2500 W AC Power Supply in an EX6200 Switch
Installing a 2500
W AC Power Supply in an EX6200 Switch
Figure 5: Installing a 5000 W AC Power Supply in an EX6200 Switch
Installing a 5000 W AC Power Supply
in an EX6200 Switch

Removing a DC Power Supply from an EX6200 Switch

The DC power supply in an EX6200 switch is a hot-removable and hot-insertable field-replaceable unit (FRU). You remove DC power supplies from the front of the chassis.

Caution

Before you remove a power supply, ensure that you have power supplies sufficient to power the switch left in the chassis. See Calculating Power Requirements for an EX6210 Switch.

Before you remove a DC power supply from the switch:

Ensure that you have the following parts and tools available to remove the DC power supply from the switch chassis:

  • Electrostatic discharge (ESD) grounding strap

  • Phillips (+) screwdriver, number 2

  • 3/8 in. (9.5 mm) nut driver or socket wrench

  • Multimeter

  • Replacement power supply or cover panel for the power supply slot

Caution

Do not leave the power supply slot empty for a long time while the switch is operational. Either replace the power supply unit promptly or install a cover panel over the empty slot.

To remove a DC power supply from the switch (see Figure 6):

  1. Attach the electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.
  2. Make sure that the voltage across the DC power source cables leads is 0 V and that the cables do not become active during the removal process.
  3. Flip the Enable switch on the power supply to the Standby position.
  4. Unscrew the screw on the plastic cable cover that shields the input terminal studs, counterclockwise using the Phillips (+) screwdriver, number 2 .
  5. Remove the plastic cable covers from the input terminal studs.
  6. Unscrew the nuts counterclockwise using the 3/8 in. (9.5 mm) nut driver or socket wrench from the input terminal studs.
  7. Remove the cable lugs and washers from the input terminal studs.
  8. Unscrew the two captive screws on the top front faceplate of the power supply counterclockwise using the Phillips (+) screwdriver.
  9. Taking care not to touch power supply components, pins, leads, or solder connections, place one hand under the power supply to support it. Grasp the power supply handle with your other hand and pull the power supply completely out of the chassis.
  10. If you are not replacing the power supply, install the cover panel over the slot, using the Phillips (+) screwdriver to tighten the screws on the top front faceplate of the cover panel.Caution

    Do not overtighten the screws. Applying excessive force might damage the screws or power supply.

Figure 6: Removing a DC Power Supply from an EX6200 Switch
Removing
a DC Power Supply from an EX6200 Switch

Installing a DC Power Supply in an EX6200 Switch

The DC power supply in an EX6200 switch is a hot-removable and hot-insertable field-replaceable unit (FRU). Up to four DC power supplies can be installed in an EX6200 switch. All DC power supplies install in the front of the chassis in the slots provided at the bottom. See Slot Numbering for an EX6210 Switch.

Before you install a DC power supply in the switch:

Ensure that you have the following parts and tools available to install a DC power supply in an EX6200 switch chassis:

  • Electrostatic discharge (ESD) grounding strap

  • Phillips (+) screwdriver, number 2

To install a DC power supply in an EX6200 switch (see Figure 7):

  1. Attach the electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.
  2. If the power supply slot has a cover panel on it, unscrew the two captive screws on the front top of the cover panel in the counterclockwise direction using the Phillips (+) screwdriver, and remove the cover panel. Save the cover panel for later use.
  3. Taking care not to touch power supply components, pins, leads, or solder connections, remove the power supply from its bag.
  4. Flip the Enable switch on the power supply to the Standby position.
  5. Using both hands, place the power supply in the power supply slot on the front of the switch. Slide the power supply straight into the chassis until the power supply is fully seated in the slot. Ensure the power supply faceplate is flush with any adjacent power supply faceplates or power supply cover panels. Note

    Power supplies can be installed in any slot. You need not install the power supplies in serial order.

  6. Push the two captive screws on the front top of the power supply into the power supply faceplate. Ensure that the screws are seated inside the corresponding holes on the chassis.
  7. Tighten the captive screws by turning them clockwise using the Phillips (+) screwdriver, number 1. Caution

    Do not overtighten the screws. Applying excessive force might damage the screws or power supply.

    When the screws are tight enough, the power supply locks into the switch chassis.

To connect power to a DC power supply, see Connecting DC Power to an EX6200 Switch.

Figure 7: Installing a DC Power Supply in an EX6200 Switch
Installing a DC
Power Supply in an EX6200 Switch