Johnson Controls easyIO FS-20 Quick Start Manual page 5

Figure 10: FS-20 wiring diagram
Table 1: FS-20 wiring inputs and outputs
Callout
1
2
3
4
5
6
7
8
Note: If you configure the controller as a subordinate device and it is at the end of a daisy chain, install a 120 ohm
resistor in parallel with the RS-485 terminal.
Description
Power input
24 VAC or 24 VDC
Pilot duty output
Current-controlled VSD
Voltage-controlled actuator
Connection to serial devices
Current transmitter
0 mA to 20 mA or 4 mA to 20 mA
Voltage transmitter
0 V to 10 V or 0 V to 5 V
Thermistor, RTD, or potentiometer
FS-20 Quick Start Guide 5