128 bright blue Installation Manual
Optional - Powering Directly From a Power Supply
If desired, the VRI-1S3 can receive power directly from a UL 294 Listed Power Limited power supply.
Communication between the
bright blue
controller and the VRI-1S3 remains via RS-485 protocol. Any one of the
Device connectors (Device 1-1 through 2-16) on the
bright blue
controller can be used to communicate with TB1
on a VRI-1S3. Power will be supplied independently from the power supply to TB2 on the VRI-1S3.
Data Communication between bright blue and VRI-1S3
bright blue
VRI-1S3
Power Supply
PIN 1
– A (Data A)
TB1 PIN 1
– TR+
PIN 2
– B (Data B)
TB1 PIN 2
– TR-
TB2 PIN1
– VIN
+ (Power)
TB2 PIN2
– GND
- (Ground)