CHAPTER 3 INSTALLATION
1.PRECAUTION IN HANDLING
When handling cards, the installer must wear a grounded wrist strap to protect the circuit card from static electricity, and the installer must engage in the work on a grounded conductive work surface. Figure
• When plugging/unplugging circuit card
PBX
FRAME GROUND SCREW
WRIST STRAP Connect ground wire to frame earth of equipment.
• When holding circuit card
Never touch components or soldered surface with bare hands.
CARD FRONT
Figure 3-1 Static Electricity Guard
ND-46550 (E)CHAPTER 3
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