Juniper EX8200 Series Manuale utente

Connecting AC Power to an EX8200 Switch

EX8200 switches can be configured with up to six AC power supplies. After you have

installed at least one power supply, you can connect power to the switch.

CAUTION: Mixing different types of power supplies in the same chassis is not a

supported configuration.

NOTE: Each power supply must be connected to a dedicated AC power source outlet.

Before you begin to connect power to the switch:

■Ensure you understand how to prevent ESD damage. See Prevention of

Electrostatic Discharge Damage on EX Series Switches.

■Ensure that you have connected the switch chassis to earth ground.

CAUTION: To meet safety and electromagnetic interference (EMI) requirements and

to ensure proper operation, EX8200 switches must be adequately grounded before

they are connected to power.

For installations that require a separate grounding conductor to the chassis, use the

protective earthing terminal on the EX8200 switch chassis to connect to the earth

ground. For instructions on connecting an EX8200 switch to ground using a separate

grounding conductor, see Connecting Earth Ground to an EX Series Switch.

An EX8200 switch gets additional grounding when you plug the power supply in the

switch into a grounded AC power outlet by using the AC power cord appropriate for

your geographical location. See AC Power Cord Specifications for an EX8200 Switch.

■Install power supplies in the switch. See Installing an AC Power Supply in an

EX8200 Switch.

Ensure that you have the following parts and tools available to connect power to the

switch:

■Electrostatic discharge (ESD) grounding strap

■Power cords appropriate for your geographical location. See AC Power Cord

Specifications for an EX8200 Switch.

WARNING: Ensure that the power cords do not block access to switch components

or drape where people can trip on them.

Connecting AC Power to an EX8200 Switch ■1

To connect AC power to an EX8200 switch:

1. Attach the electrostatic discharge (ESD) grounding strap to your bare wrist, and

connect the strap to the ESD point on the chassis.

2. Ensure that the power supply is fully inserted and latched securely in the chassis.

See Installing an AC Power Supply in an EX8200 Switch.

3. Flip the Enable switch, which is next to the appliance inlet on the power supply

faceplate, to the Standby position.

4. Squeeze the two sides of the power cord retainer clip, and insert the L-shaped

ends of the clip into the holes in the bracket on each side of the AC appliance

inlet on the AC power supply faceplate. See Figure 1.

Figure 1: Power Cord Retainer in an AC Power Supply

5. Locate the power cord or cords shipped with the switch; the cords have plugs

appropriate for your geographical location.

6. Insert the coupler end of the power cord into the AC appliance inlet on the AC

power supply faceplate.

NOTE: If the power cord tray is installed, you can thread the power cord through the

power cord tray. See Figure 2.

7. Push the cord (close to the coupler end) into the slot in the adjustment nut of

the power cord retainer. Rotate the nut until it is tight against the base of the

coupler and the slot in the nut is turned 90° from the top of the switch. See

Figure 2.

8. If the AC power source outlet has a power switch, set it to the OFF (0) position.

9. Insert the power cord plug into an AC power source outlet.

10. If the AC power source outlet has a power switch, set it to the ON (|) position.

11. Verify that the INPUT OK LED on the power supply faceplate is lit and is on

steadily.

12. Repeat steps 2 through 11 for the remaining power supplies.

2■Connecting AC Power to an EX8200 Switch

Figure 2: Connecting the Power Supply Cord to an EX8200 Switch

Related Topics Powering On an EX8200 Switch■

■AC Power Supply in an EX8200 Switch

■AC Power Supply LEDs in an EX8200 Switch

Published: 2010-05-07

Connecting AC Power to an EX8200 Switch ■3

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