AT&T DEFINITY 7100 series Uživatelský manuál stáhnout pdf (Strana 91)

POWER UNITS

631DA1 Power Unit

Provides +5 volt DC 60-amp power on the backplane on the control

carrier and the port carriers.

631DB1 Power Unit

Provides -48 volt DC 8-amp and -5 volt 6-amp power on the back-

planes of the carriers.

644A1 Power Unit

Provides +5 volt DC 60-amp power on the backplane on the control

carrier and the port carriers of -48 volt DC powered cabinets.

645B1 Power Unit

Provides -48 volt DC 8-amp and -5 volt DC 6-amp power on the

backplanes of the carriers of -48 volt DC powered cabinets.

The control carrier contains one 645B Power Unit to power both the

control and port circuit packs.

WP-91153 L3 Power Supply

Provides +5 volt DC power, -5 volt DC power, -48 volt DC power,

+12 volt DC power, ringing voltage, and battery charge voltage for

single-carrier cabinets.

Provides circuit breakers and EMI filtering.

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AT&T DEFINITY 7100 series Uživatelský manuál Strana 91