Installing A Power Supply In An Ex4200 Switch - Juniper EX4200 Hardware Manual

Installing a Power Supply in an EX4200 Switch

The power supply in EX4200 switches is a hot-removable and hot-insertable field-replaceable unit (FRU):
You can remove and replace it without powering off the switch or disrupting switch functions.
All the EX4200 AC powered or DC powered switches, except the EX4200-24F-S and EX4200-48T-S
switches are shipped with one AC or DC power supply pre-installed in the rear panel of the switches.
EX4200-24F-S and EX4200-48T-S switches are not shipped with pre-installed power supplies; you must
order them separately.
Ensure that you have the following parts and tools available:
A Phillips (+) screwdriver, number 2
To install a power supply in the switch (see
1. Taking care not to touch power supply components, pins, leads, or solder connections, remove the
power supply from its bag.
2. Loosen the locking lever screw on the left front of the power supply by using the screwdriver.
3. Push down on the locking lever until it is in its lowest position.
4. Using both hands, place the power supply in the power supply slot on the rear panel of the switch and
slide it in until it is fully seated.
NOTE: The handle on the 320 W AC power supply is at the bottom of the power supply
faceplate, while the handle on the 600 W and the 930 W AC power supplies is at the top of
the faceplate. The handle on the 190 W DC power supply runs across the faceplate.
5. Push the locking lever up to its highest position (this action might pull the power supply in).
6. Tighten the locking lever screw by using the screwdriver.
Figure 58 on page 198):
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