
1 2 5 3 0 / 1 2 5 4 0 O W N E R ' S M A N U A L
P/N 447203 Issue I
II-10
Notification Appliance Circuits
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Four Class B, Style Y circuits
Convertible to Class A, Style Z circuits with optional adapter
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Expandable to 12 Class B, Style Y circuits
Convertible to Class A, Style Z circuits with optional adapter
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Power limited
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Supervised
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Maximum Standby Current: 3.4mA
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Alarm Voltage: 24 VDC nominal
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Maximum Alarm Current: 1.5 A
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Maximum Ripple: 1.5 VAC
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Maximum Loop Drop Voltage: 1.0 VDC
Status Relays
Includes alarm, supervisory, trouble, power failure and processor failure.
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Contact Rating:
2A, 30 VDC maximum, resistive
0.5A, 30 VDC maximum, resistive
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Contact Type:
Form “A” or “B” Contact for processor failure relay (jumper selected)
Form “C” Contact for alarm, supervisory, trouble and power failure relays.
RS485 Communications Circuit
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Power limited
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Supervised
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Voltage: 24 VDC nominal
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Current:
0.9 amp maximum for remote annunciators
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Maximum wire loop resistance: 25 ohms/line
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Communications: RS485
City Tie
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Reverse Polarity: Alarm with Trouble and/or Supervisory operation
Power limited
Supervised by receiver for short or open circuit.
Supervised by control unit for grounded circuit.
Voltage: 24 VDC nominal
Current: 0.014A maximum
Ripple: 1.5 VAC maximum
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Local Energy
Not power limited
Supervised for open or grounded circuit by control unit.
Voltage: 24 VDC nominal
Standby Current: 0.014A maximum
Alarm Current: 0.510A maximum
Ripple: 1.5 VAC maximum
Maximum wire loop resistance: 30 ohms
Trip coil impedance: 14.5 ohms
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Shunt
Not power limited
Contact Rating: 0.150A, 30VDC maximum, resistive
Maximum wire loop resistance: 6 ohms