Mitel 50005070 Instruction Manual download pdf (Page 201)

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Routine Maintenance

Installing FRUs

Only persons who have successfully completed a Mitel Installation and

Maintenance training course for the SX-200 ICP should perform removal

and replacement procedures.

Precautions

Observe the following precautions when working on the system,

particularly when handling PCB cards or using test equipment to measure

voltages.

• When installing or replacing PCB cards turn power off, but maintain

the ground connections to the equipment. Power must be OFF when

inserting or removing cards. These cards are identified with

appropriate warnings on their faceplates.

• Always wear an antistatic wrist strap when handling printed circuit

cards. Handle PCB cards only by the edges and avoid contact with any

exposed electrical connections. When removing a new card from its

package, touch the package to the cabinet frame first to release any

static voltage buildup, prior to removing the card and inserting it into

the equipment.

• Conductive packages (antistatic packaging) should be grounded prior

to opening them to remove the contents, and similarly grounded prior

to placing a card in the package. Place suspected faulty cards in

conductive packages to prevent further possible damage to the cards.

Cards that are not correctly packed in antistatic packaging when

returned will not be covered by any warranty.

WARNING:INSTRUCTIONS MUST BE FOLLOWED

EXPLICITLY WHEN THEY INVOLVE WORK WITH AND

CHANGES TO THE PRIMARY POWER SUPPLY OF THE UNIT.

Use proper fitting Phillips screwdrivers (#1 or #2) to prevent

damaging components and fasteners.

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Mitel 50005070 Instruction Manual Page 201

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