Removing An M40E Ac Power Supply - Juniper M40E Hardware Manual

M40e Multiservice Edge Router Hardware Guide
212
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Removing an M40e AC Power Supply

The AC power supplies are located at the bottom rear of the chassis, as shown in Figure
2 on page 10. Each AC power supply weighs approximately 15 lb (6.8 kg).
CAUTION: Do not leave a power supply slot empty for more than 30 minutes
while the router is operational. For proper airflow, the power supply must
remain in the chassis, or a blank panel must be used in an empty slot.
To remove an AC power supply (see Figure 118 on page 213):
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
1.
the strap to one of the ESD points on the chassis. For more information about ESD,
see "Preventing Electrostatic Discharge Damage to an M Series, MX Series, or T Series
Router" on page 232.
Press the power switch on the power supply faceplate to the
2.
NOTE: If you are not removing the power supply, but simply powering it
off, wait at least 60 seconds before turning it back on. If you need to power
it off again, wait for at least 60 seconds after powering it on.
Unplug the power cord from the appliance inlet on the faceplate.
3.
Loosen the thumbscrew at each corner of the power supply faceplate, using a Phillips
4.
screwdriver if necessary.
Grasp the handle or handles on the power supply faceplate and pull firmly to slide
5.
the unit about halfway out of the chassis.
Place one hand under the power supply to support it, then slide it completely out of
6.
the chassis.
WARNING: Do not touch the power connectors on the rear of the power
supply (see "Removing an M40e DC Power Supply" on page 216). They can
contain dangerous voltages.
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