Juniper EX9214 Hardware Manual page 216

EX9214 Switch Hardware Guide
192
Ensure you understand how to prevent Electrostatic discharge (ESD) damage. See
"Prevention of Electrostatic Discharge Damage" on page
Ensure that you have the following parts and tools available to remove an AC power
supply from an EX9214 switch chassis:
ESD grounding strap
Phillips (+) screwdrivers, number 1 and 2
Replacement power supply or a cover panel for the power supply slot
CAUTION: Do not leave the power supply slot empty for a long time while
the switch is operational. Either replace the power supply promptly or install
a cover panel over the empty slot.
To remove an AC power supply from an EX9214 switch (see
Switch off the dedicated customer site circuit breaker for the power supply and remove
1.
the power cord from the AC power source. Follow the instructions for your site.
Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD
2.
point on the chassis.
If you are using the power supply in one-feed mode, move the AC input switch located
3.
on the chassis above the power supply to the Off (
power supply in two-feed mode, set the power switch on the power supply faceplate
also to the Off ( O ) position.
If you are using the power supply in one-feed mode, remove the coupler end of the
4.
power cord from the AC appliance inlet located on the chassis above the power supply.
This is the recommended inlet when using the power supply in one-feed mode. If you
are using the power supply in two-feed mode, remove the coupler end of the other
power cord from the AC appliance inlet on the power supply faceplate also.
While grasping the handle on the power supply faceplate with one hand, use the other
5.
hand to pull the spring-loaded locking pin in the release lever away from the chassis
and turn the release lever in the counterclockwise direction until it stops. See
Figure 64 on page 193.
329.
Figure 64 on page 193):
) position. If you are using the
O
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