AT&T DEFINITY 7100 series Manual de usuario Pagina 32

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POWER UNITS (Contd)
G1
631DA1 Power Unit (G1)
Provides +5 volt dc 60-amp power on the backplane on the control
carrier and the port carriers
631DB1 Power Unit (G1)
Provides -48 volt dc 8-amp and -5 volt 6-amp power on the
backplanes of the carriers
644A Power Unit (G1)
Provides +5 volt dc 60-amp power on the backplane on the control
carrier and the port carriers of -48 volt DC powered cabinets
645B Power Unit (G1)
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 the circuit
packs in all slots
WP-91153 L2 Power Supply (G1)
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
TN755B Power Unit (G1)
Supports applications requiring neon message waiting lamps
676B Power Unit (G1)
Provides +5 volt dc power, -5 volt dc power, -48 volt dc power, +12
volt dc power, and ringing voltage for -48 volt DC powered single-
carrier cabinets
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