LDSBus Isolated IO Controller Datasheet
Version 1.1
Document Reference No.: BRTSYS_000009 Clearance No.: BRTSYS#005
Copyright © BRT Systems Pte Ltd
9
7.1
Isolated IO Digital INPUT Setup
The 2CH isolated digital input supports external digital signals ranging from 1.8 to 12V. The two
options for connecting are as follows:
Note:
As each channel is independent, Channel 1 and Channel 2 can use different configurations.
IO Digital Input with 5V Application
IO Digital Input with External Pull-up
Use AWG 26~16; The RED wire
indicates that it comes from an
external IO source
→
Connect to the IN1- or IN2-
Use AWG 26~16; The BLACK wire
indicates that it comes from external
GND
→
Connect to the GND
Use AWG 26~16; The BLUE wire
connects to the 5V source on board
→
Connect to the IN1+ or IN2+
Use AWG 26~16; The BLACK wire
indicates that it comes from external
GND
→
Connect to the IN1- or IN2-
Use AWG 26~16; The RED wire
indicates that it comes from External
IO source
→
Connect to the IN1+ or IN2+