BAS-SVX090B-EN
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Figure 13. Variable resistance analog inputs
Zone Sensor Output Symbio 500 Termination Type Range
Zone Temp
AI1 Thermistor 10k Ω
Zone Temp Setpoint
AI2
Setpoint
189 Ω-889 Ω
Fan Mode AI3 Resistive 100 Ω-100k Ω
Comm+
(a)
IMC+
Comm- IMC-
(a)
For Comm+/- wiring, use 18 AWG, shielded, twisted-pair wire.
1. Connect the shield to a common terminal at the terminal board and tape it back at the input device.
Note: Do not use the shield as the common connection. For 3-wire applications, use a 3-conductor
cable with shield and for 2-wire applications, use a 2-conductor cable with separate shield.
2. Connect the signal wire to an available input terminal.
3. .Use the Tracer TU service tool to configure the input for analog operation.
Analog Outputs
The Symbio 500 has two analog outputs. These outputs can be used for 0–10 Vdc outputs or 0–20 mA
outputs, which can control actuators or secondary controllers. Output wiring specifications must comply
with the receiving device wiring requirements. The illustration below shows a typical wiring for analog
outputs.
Wiring
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