NEC 2400 ipx Bedienungsanleitung PDF herunterladen (Seite 103)

100

101

ND-71548 (E) CHAPTER 3

Page 85

Issue 2

INSTALLATION PROCEDURE

This NAP explains the following work items:

• Extraction of Mounted Circuit Cards

• Mounting of Circuit Cards

• Setting of Switch Positions on Circuit Cards

• Installation of CPR

1. PRECAUTIONS

1.1. Protection Against Static Electricity

When setting switches on circuit cards, use a Portable Field Service Grounding Kit in order to prevent damage

to static-sensitive components.

Example: 3M Model 8012, consists of:

•2 × 2 VELOSTAT

Work Mat

• 15 ft. (4.5 m) Ground Cord

• CHARGE-GUARD

Wrist Strap with alligator clip

Before handling any circuit cards, first spread out the work mat, then connect the ground cord to the frame or

other ground source.

If a CHARGE-GUARD wrist strap is to be used, connect the wrist strap to the frame or other ground using the

provided cable.

1.2. Handling Circuit Cards

Whenever possible, do not handle circuit cards with bare hands.

The only portion of the card that can be touched is its edge. Do not touch the surface or the mounted components.

Doing so may damage the card.

Handle circuit cards carefully. Never bang or drop them.

1.3. Mounting or Removing Circuit Cards when the System Is in Operation

Never mount or remove a circuit card without first setting its MBR and/or MB switch to the UP position.

NAP-200-009

Sheet 1/13

Setting of Switch Positions and

Mounting of Circuit Cards

ATTENTION

Contents

Static Sensitive

Handling

Precautions Required

1 2 ... 98 99 100 101 102 103 104 105 106 107 108 ... 427 428

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