
FA-300-6L Installation and Operation Manual
19
Wiring Tables and Information
Table 3: Initiating Circuit Wiring
Table 4: Indicating Circuit Wiring
Four-Wire Smoke Power (regulated)
4-wire smoke power is provided for 4-wire smoke detectors. This filtered supply is supervised therefore a short will
disconnect the power through the relay until the “RESET” key is pressed. A trouble signal will be generated once
there is a short. This supply is rated at 22.3VDC regulated/300mA max/1V voltage drop maximum.
Supervised Auxiliary Power (regulated)
Supervised auxiliary power is used to power the remote annunciators and smart relay modules. This filtered circuit
is supervised therefore a short will disconnect the power through the relay until the “RESET” key is pressed. A
trouble signal will be generated once there is a short.This supply is rated at 22.3VDC regulated/500mA max/1V
voltage drop maximum.
Auxiliary Power (unfiltered)
This unfiltered supply is not supervised. This supply is rated at 24VDC FWR/1.7A max. If there is a short on this
circuit, the auxiliary power does not recover automatically when the short is removed. The main power must be
disconnected, then reconnected and the panel reset to re-establish the auxiliary power supply.
Wire gauge Maximum wiring run to last device
AWG Feet Meters
22 2990 910
20 4760 1450
18 7560 2300
16 12000 3600
14 19000 5800
12 30400 9200
Total
signal
load in
amperes
Maximum wiring run to last device
Max. loop
resistance
in ohms
18 AWG 16 AWG 14 AWG 12 AWG
Feet Meters Feet Meters Feet Meters Feet Meters
0.06 2350 716 3750 1143 6000 1829 8500 2591 30
0.12 1180 360 1850 567 3000 915 4250 1296 15
0.30 470 143 750 229 1200 366 1900 579 6
0.60 235 71 375 114 600 183 850 259 3
0.90 156 47 250 76 400 122 570 174 2
1.20 118 36 185 56 300 91 425 129 1.5
1.50 94 29 150 46 240 73 343 105 1.2
1.70 78 24 125 38 200 61 285 87 1.0
Notes:
• For Class A wiring the resistance in ohms is multiplied by two.
• Maximum voltage drop should not exceed 1.8 volts.
Notes:
• For Class A the maximum
wiring run to the last device is
divided by two.
• Maximum loop resistance
should not exceed 100 ohms.
• Maximum capacitance of
0.5uF total on each initiating
circuit.
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