411UDAC Document #51073 Rev. D 12/09/2008 P/N 51073:D 11
Specifications
1.2 Specifications
AC Power - TB3
120 VAC, 60 Hz, 0.3 amps
Wire size: minimum 14 AWG (2.00 mm
2
) with 600V insulation
Supervised, nonpower-limited
Battery (lead acid only) - J3
Maximum Charging Circuit: Normal flat charge - 13.7V @ 0.6 amps
Maximum Charger Capacity: 14 Amp Hour battery
Supervised, nonpower-limited
Channels/Inputs - TB2 Terminals 1 through 10
Programmable Channels 1 through 4
Power-limited circuitry
Fully supervised (monitored for opens, shorts and earth fault)
Normal Operating Voltage: 12.0 VDC (ripple = 100 mV maximum)
End-of-Line Resistor: 2.2K ohms, ½ watt (P/N 27070 UL listed)
Operation for each channel:
• Channel/Input 1, Style B (Class B) 2-wire smoke detector input and Channel/Input 3, Style B (Class B) 2-wire
smoke detectors or waterflows or Style D (Class A) waterflow input:
Note: Connecting 2-wire detectors on Channel/Input 3 requires NFPA Style B (Class B) only.
Alarm Current: 11 mA
Short Circuit Current: 24 mA maximum
Maximum Detector Current in Standby: 2 mA
Maximum Loop Resistance: 30 ohms
Detector Loop Current is sufficient to ensure operation of a minimum of one alarmed detector per
zone
Standby Current: 5.17 mA (including End-of-Line Resistor)
• Channel/Input 2 and Channel/Input 4 - Style B (Class B) contact closure input:
Short Circuit Current: 4.46 mA maximum
Maximum Loop Resistance: 100 ohms
Standby Current: 2.66 mA
Refer to Device Compatibility Document for listed compatible devices
Notification Appliance Circuit - TB4 Terminals 1(+) & 2(-)
The 411UDAC Notification Appliance Circuit may only be used to supplement host panel NACs
Style Y (Class B) power-limited and supervised circuit (monitored for opens, shorts and earth fault)
Maximum voltage drop in wiring: 2.0 VDC
Operating voltage nominal 13.8 VDC
Current for all external devices: 1.0 amp
End-of-line resistor: 2.2K ohms, ½ watt (P/N 27070)
Refer to Device Compatibility Document for listed compatible devices
Two Form-C Relays - TB1 Terminals 1 through 6
Operating voltage nominal 12 VDC
Contact rating: 2.0 amps @ 30 VDC (resistive) or 0.5 amps @ 30 VAC (resistive)
Nonsupervised
12 VDC Resettable Special Application Power - TB4 Terminals 3(+) and 4(-)
Operating voltage nominal 12 volts Maximum ripple voltage: 10 mV
RMS
Up to 200 mA is available for powering 4-wire smoke detectors
Power-limited and supervised circuitry. Recommended maximum standby current is 50 mA
Notes:
1. For power supply and battery calculations, refer to Chapter 6
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