Maintaining the EX8200 Power System

Removing an AC Power Supply from an EX8200 Switch

The AC power supply in an EX8200 switch is a hot-removable and hot-insertable field-replaceable unit (FRU). You remove AC power supplies from the front of the chassis.

Before you remove an AC power supply from the switch:

• Ensure you understand how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.

Ensure that you have the following parts and tools available to remove an AC power supply from an EX8200 switch chassis:

• Electrostatic discharge (ESD) grounding strap

• Phillips (+) screwdriver, number 1

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

To remove an AC power supply from an EX8200 switch (see Figure 1):

1. Attach the electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to the ESD point on the chassis.
2. Flip the Enable switch next to the appliance inlet on the power supply to the Standby position.
3. Disconnect power from the switch 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.
5. Turn the adjustment nut of the power cord retainer counterclockwise till you can see the power cord. Pull the power cord from the slot in the adjustment nut.
6. Squeeze the two sides of the power cord retainer clip, and pull the L-shaped ends of the clip from the holes on each side of the AC appliance inlet to completely remove the power retainer clip.
7. Unscrew the captive screw counterclockwise using the Phillips (+) screwdriver, number 1.
8. Pull the captive screw away from the faceplate of the power supply to release the latch.
9. Pull the handle away from the faceplate of the power supply until it is perpendicular to the faceplate.
10. 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.
11. If you are not replacing the power supply, install the cover panel over the slot, using the Phillips (+) screwdriver to tighten the screw on the side of the cover panel.

Figure 1: Removing an AC Power Supply from an EX8200 Switch

Installing an AC Power Supply in an EX8200 Switch

The AC power supply in an EX8200 switch is a hot-insertable and hot-removable field-replaceable unit (FRU). Up to six AC power supplies can be installed in an EX8200 switch. All AC power supplies install in the front of the chassis in the slots provided at the bottom. See Slot Numbering for an EX8208 Switch and Slot Numbering for an EX8216 Switch.

Before you install an AC power supply in the switch:

• Ensure you understand how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.

Ensure that you have the following parts and tools available to install an AC power supply in an EX8200 switch chassis:

• Electrostatic discharge (ESD) grounding strap

• Phillips (+) screwdriver, number 1

To install an AC power supply in an EX8200 switch (see Figure 2):

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 screw on the side of the cover panel in the counterclockwise direction using the Phillips (+) screwdriver, number 1, 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 next to the appliance inlet on the power supply to the Standby position.
5. Unscrew the captive screw in the counterclockwise direction using the Phillips (+) screwdriver, number 1.
6. Pull the captive screw away from the faceplate of the power supply to release the latch.
7. Pull the handle away from the faceplate of the power supply until it is perpendicular to the faceplate.Note

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

8. 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.
9. Push the handle towards the faceplate of the power supply until it is flush against the faceplate.
10. Push the captive screw into the power supply faceplate. Ensure that the screw is seated inside the corresponding hole on the faceplate.
11. Tighten the captive screw by turning it clockwise using the Phillips (+) screwdriver, number 1. When the screw is completely tight, the latch locks into the switch chassis.

Figure 2: Installing an AC Power Supply in an EX8200 Switch

Removing a DC Power Supply from an EX8200 Switch

The DC power supply in an EX8200 switch is a hot-removable and hot-insertable field-replaceable unit (FRU). You remove DC power supplies from the front of the chassis.

Before you remove a DC power supply from the switch:

• Ensure that you understand how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.

Ensure that you have the following parts and tools available to remove a DC power supply from an EX8200 switch chassis:

• Electrostatic discharge (ESD) grounding strap

• Phillips (+) screwdriver, number 1

• Phillips (+) screwdriver, number 2

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

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

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 there is no chance that the cables might become active during the removal process.
3. Flip the Enable switch on the power supply to the Standby position.
4. Unscrew the screw counterclockwise using the Phillips (+) screwdriver, number 2, on each of the plastic cable covers that shield the input terminal studs.
5. Remove the plastic cable covers from both pairs of input terminal studs. See Figure 3.

   Figure 3: Remove the Plastic Cable Cover

   

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 captive screw counterclockwise using the Phillips (+) screwdriver, number 1.
9. Pull the captive screw away from the faceplate of the power supply to release the latch.
10. Pull the handle away from the faceplate of the power supply until it is perpendicular to the faceplate.
11. 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.
12. If you are not replacing the power supply, install the cover panel over the slot, using the Phillips (+) screwdriver to tighten the screw on the side of the cover panel.

Figure 4: Removing a DC Power Supply from an EX8200 Switch

Installing a DC Power Supply in an EX8200 Switch

The DC power supply in an EX8200 switch is a hot-removable and hot-insertable field-replaceable unit (FRU). Up to six DC power supplies can be installed in an EX8200 switch. All DC power supplies install in the front of the chassis in the slots provided at the bottom. See Slot Numbering for an EX8208 Switch and Slot Numbering for an EX8216 Switch.

Before you install a DC power supply in the switch:

• Ensure you understand how to prevent ESD damage. See Prevention of Electrostatic Discharge Damage.

Ensure that you have the following parts and tools available to install a DC power supply in an EX8200 switch chassis:

• Electrostatic discharge (ESD) grounding strap

• Phillips (+) screwdriver, number 1

To install a DC power supply in an EX8200 switch (see Figure 5):

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 screw on the side of the cover panel in the counterclockwise direction using the Phillips (+) screwdriver, number 1, 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. Unscrew the captive screw in the counterclockwise direction using the Phillips (+) screwdriver, number 1.
6. Pull the captive screw away from the faceplate of the power supply to release the latch.
7. Pull the handle away from the faceplate of the power supply until it is perpendicular to the faceplate.Note

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

8. 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.
9. Push the handle towards the faceplate of the power supply until it is flush against the faceplate.
10. Push the captive screw into the power supply faceplate. Ensure that the screw is seated inside the corresponding hole on the faceplate.
11. Tighten the captive screw by turning it clockwise using the Phillips (+) screwdriver, number 1. When the screw is completely tight, the latch locks into the switch chassis.

To connect power to a DC power supply, see Connecting DC Power to an EX8200 Switch

Figure 5: Installing a DC Power Supply in an EX8200 Switch