Input Channels
24
411UDAC Document #51073 Rev. D 12/09/2008 P/N 51073:D
The factory default programming for each channel is as follows:
Channel 1 - fire alarm (2-wire smoke)
Channel 2 - pull station
Channel 3 - fire alarm (2-wire smoke)
Channel 4 - pull station
The following illustration shows Channel 1 connected to 2-wire smoke detectors, Channel 2 connected to manual pull
stations, Channel 3 connected to 2-wire smoke detectors and Channel 4 connected to waterflow devices. In this
example, the factory default programming for Channel 4 must be changed from pull station to waterflow device.
2-Wire Smoke
Detectors
(Class B)
2-Wire Smoke
Detectors
(Class A)
Manual Pull
Stations
(Class B)
Waterflow
Devices
(Class B)
411UDAC Main Circuit Board
Zone 1/Channel 1
Zone 2/Channel 2
Zone 3/Channel 3
Zone 4/Channel 4
FIGURE 2-6:Wiring Initiating Device Circuits
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