CHAPTER 2 INSTALLATION
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NWA-008841-001 Rev.5.0
90ch2001.fm
CAUTION
1. You must hold the edge of a circuit card when plugging or unplugging the circuit card. If you
touch another area, you may be exposed to hazardous voltages.
2. You must wait for 30 seconds before plugging the circuit card again when unplugging the cir-
cuit card while the operating power is being supplied.
CARD FRONT
NEVER TOUCH THE COMPO-
NENTS OR SOLDERED SUR-
FACE WITH BARE HANDS.
PBX
JULY/1/2006
PRECAUTIONS