EasyIO FD-20i User Reference v1.2
Universal Input Connection
EasyIO FD-20i has ten (10) non-isolated universal inputs. The universal input supports either resistance or
digital voltage free contacts.
Resistance – The working range of resistance is 400 Ohm – 300 KOhms. If the input is configured as
Thermistor type, the system provides 10 customizable temperature lookup tables for resistance to
temperature translation. The commonly used Thermistor like 10K, 10K with Shunt.
Temperature table selection. Temperature table selection is via BACnet objects or Modbus register.
By default each UI channel temperature table is set to table 1.
Table
Number
Temperature Table VS Sensor
Type
Conversion
1
NTC 10K Type 2
Celsius
2
NTC 10K Type 2 Shunt 11K
Celsius
3
NTC 10K Type 3
Celsius
4
NTC 10K Type 3 Shunt 11K
Celsius
5
NTC 20K
Celsius
6
NTC 10K Type 2
Fahrenheit
7
NTC 10K Type 2 Shunt 11K
Fahrenheit
8
NTC 10K Type 3
Fahrenheit
9
NTC 10K Type 3 Shunt 11K
Fahrenheit
10
NTC 20K
Fahrenheit
Universal Input Connection
Digital Input Connection
EasyIO FD-20i has ten (10) non-isolated voltage free contacts digital inputs.