Artesyn Centellis 2100 Shelf Release 3.0, Инструкция по установке и эксплуатации

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FRU Installation
Centellis 2100 Shelf Release 3.0 Installation and Use (6806800T37D )
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4.4 Replacing AC Power Supply Units
This section describes the procedure for replacement of the power supply units.
The shelf is equipped with up to two PSUs. They are installed in the middle of the shelf’s front.
Before replacing PSU, verify that a second PSU is present with its green notification LEDs lit. This
second PSU will provide a single power supply path during the replacement process.
If no second PSU is installed or operational, you have to power down the system before
exchanging the PSU (see section
Powering Down the System on page 91 ).
Replacement Procedure
To replace a PSU proceed as follows:
1. Put on an ESD wrist strap.
2. Connect the strap to the shelf by attaching the front or rear ESD jack/ESD snap.
3. Switch the external disconnect device of the PSU to be replaced to the OFF
(tripped) position, if it is not already in this position.
4. Unfasten the two captive screws of the PSU.
Damage of Circuits
Electrostatic discharge and incorrect blade installation and removal can damage circuits or
shorten their life.
Before touching the blade or electronic components, make sure that you are working in an
ESD-safe environment.
Personal Injury
Hot PSUs may cause injury.
Allow the PSU to cool before servicing.