Dragino LT Series User Manual

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LT Series LoRa IO controller User Manual 27 / 42
3.6.3 Digital Output Port: DO1/DO2 /DO3
NPN output: GND or Float. Max voltage can apply to output pin is 36v.
3.6.4 Analog Input Interface
The analog input interface is as below. The LT will measure the IN2 voltage so to calculate the
current pass the Load. The formula is:
AC2 = (IN2 voltage )/12
3.6.5 Relay Output
The LT serial controller has two relay interfaces; each interface uses two pins of the screw
terminal. User can connect other device’s Power Line to in serial of RO1_1 and RO_2. Such as
below:

Dragino LT Series Specifications

General

Brand	Dragino
Model	LT Series
Category	Controller
Language	English