190-01553-00
GTR 200/200B Installation Manual
Rev. P
Page 4-7
4.14 Discrete Inputs
These discrete inputs are active low and are configurable.
Active-Low discrete inputs are considered active if either the voltage to ground is ≤3.5 VDC or the
resistance to ground is ≤375 Ω.
These inputs are considered inactive if the voltage to ground is 6.5-33 VDC or the resistance to ground is
>100 kΩ.
Pin Name
Pin
I/O
DISC 1*
2
In
DISC 2*
22
In
*Indicates Active Low
