
Model 5700 Installation and Operation Manual
4-34 151295
5. If necessary, adjust loop current using the potentiometer (R10) on the 5220 board . Normal
loop current is 2-to-8 mA with a 1k ohm remote station receiving unit. Maximum loop
resistance is 3k ohm.
Figure 4-35 Polarity Reversal Connection Using the 5220 Module
Note:
NAC circuit 1 and Relay 2
used as examples. Either
NAC circuit and Relay
Not suitable for remote station protected premises service
where separate transmission circuits are required for fire
supervisory (if applicable), and trouble signals.
circuit can be used.
Program Relay
for Alarm.
Max Voltage: 27.4 VDC
Max Current: 1 Amp
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