Juniper EX8200 Series Connecting

EX 8200 series 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. CAUTION: To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, EX 8200 series 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 EX 8200 series switch chassis to connect to the earth ground. For instructions on connecting an EX 8200 series switch to ground using a separate grounding conductor, see Connecting Earth Ground to an EX-series Switch. An EX 8200 series 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 EX 8200 series Switch. 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. ■ Install power supplies in the switch. See Installing an AC Power Supply in an EX 8200 series 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 EX 8200 series 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 EX 8200 series Switch ■ 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. Ensure that the power supply is fully inserted and latched securely in the chassis. See Installing an AC Power Supply in an EX 8200 series 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 EX 8200 series Switch

Related Topics ■ Powering On an EX 8200 series Switch ■ AC Power Supply in an EX 8200 series Switch ■ AC Power Supply LEDs in an EX 8200 series Switch Connecting AC Power to an EX 8200 series Switch ■ 3