Installing An Ac Power Supply In An Ex9214 Switch - Juniper EX9214 Hardware Manual

Installing an AC Power Supply in an EX9214 Switch

Before you install an AC power supply in the switch:
• Ensure you understand how to prevent Electrostatic discharge (ESD) damage. See
Electrostatic Discharge Damage
Ensure that you have the following parts and tools available:
• ESD grounding strap
• Phillips (+) screwdriver, number 1
The AC power supply in an EX9214 switch is a hot-insertable and hot-removable field-replaceable unit
(FRU) installed in the rear panel. Up to four AC power supplies can be installed in an EX9214 switch.
NOTE: Each AC power supply must be connected to a dedicated AC power source outlet and a
dedicated customer site circuit breaker.
To install an AC power supply in an EX9214 switch:
1. Attach the 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 AC input switch next to the appliance inlet on the power supply faceplate to the Off (O)
position.
5. Check whether the release lever below the empty power supply slot is locked in the
counterclockwise direction (see
in the release lever away from the chassis and turn the release lever in the counterclockwise
direction until it stops, and then let go of the locking pin in the release lever, and ensure that it is
seated in the corresponding hole in the chassis.
6. Using both hands, slide the power supply straight into the chassis until the power supply is fully
seated in the slot on the rear of the switch. The small tab on the metal housing that is controlled by
the release lever must be inside of the corresponding slot at the bottom of the power supply (see
.
Figure 68 on page 217). If it is not, pull the spring-loaded locking pin
Prevention of
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