PH-4x8R-HC (8 Relay Outputs)

 8 Isolated outputs (Relays)    

PH-4x8R-HC

Features:

• Footprint (4.5 x 6.7 inches)
• Connects to BrightSigns with Phoenix Connector
• 8 Relays for Isolated Outputs (Normally Open contacts only)
• AC/DC voltage snubber components (for reduced EMI/RFI noise)
• Requires 12Volt Power Supply for the relay power.

Inputs:

4 inputs available (terminal block) are provided to connect to GPIO 4 thru 7. If Driving all 8 relays, then no GPIO pins are free.  IF driving less than 8 relays, then those GPIO's can be used as inputs.
I.E. IF not using Relay8, then GPIO-7 is free to use as an input and so-on

Outputs:

These relays are used to supply isolated outputs to remote devices or lamps.  U.L. Single Contact Ratings: 10 amps 250VAC.  Relays are controlled by GPIO 0 thru 5 (low turns the relays on)

As the GPIO signals are set low, the relays are driven.  This scheme prevents relays from turning on as the BrightSign powers up with the GPIO outputs in high state.  Be sure to set the BrightAuthor to set the gpio's high then set as outputs.

Author: Richard Harkey
Revised: August 27, 2024