Brightsign 4x4 Interface Board

for BrightSign units Phoenix GPIO

PH-4x4-R4    

Features:

• Small footprint (4.0 x 4.0 inches)
• 4 Output Drivers for Lamps or Relays (2 amps maximum each output), logic compatible
• 4 Inputs (direct to the Brightsign)
• New: Internal/External Output Voltage Select
           (Internal = 3V)
           (External +V = 6V to 24V supplied by external Power Supply)
• On board LED to indicate BrightSign Power
• Mount Direct the BrightSign using the new 12 pin terminal block of the BrightSign.

This board solves the need for a simple 'low cost' I/O board for the Brightsign Video Player.  Four inputs go to the BrightSign and four of the Brightsign I/O pins (Btn-4 through Btn-7) drive the outputs.
This board has an inverter chip U1,  so that a low on the BrightSign Btn4 thru Btn7 turns on the outputs (drives the outputs low).

Maximum current output each driver is 2 amps.  To drive more than 5 amps total, use the 0V and +V of TB2 for high current connections.  8 amps maximum total current.  The outputs are logic compatible and can drive other BrightSigns (slaves).

Note: Connect the load from +V to 'Output' (The '-' end of the load connects to the output)

Note: For 3Volt lamps (low current), move the J2 jumper to the '3V' position.  For 6, 12, 24 volt lamps, move the jumper to the '+V' position and connect external power supply with 2.1 mm jack.

Author: Richard Harkey
Revised: August 27, 2024