Juniper EX8200 Series Instruction Manual

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.
NOTE: EX8208 switches support 2000 W DC power supplies.
EX8216 switches support 3000 W DC power supplies.
Before you install a DC power supply in the switch:
■Ensure you understand how to prevent ESD damage. See Prevention of
Electrostatic Discharge Damage on EX Series Switches.
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 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. 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.
Installing a DC Power Supply in an EX8200 Switch ■1

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 1: Installing a DC Power Supply in an EX8200 Switch
Related Topics Removing a DC Power Supply from an EX8200 Switch■
■DC Power Supply in an EX8200 Switch
Published: 2009-10-08
2■Installing a DC Power Supply in an EX8200 Switch