BOPIXEL OPR405 Series, Operating Manual, Page: 7 / 22

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3.1.9 I2C connector——J36
Pin num Pin name Function
1 Proj_on_ext_in DMD stand by (active low)
2 SCL0 I2C0
3 SDA0 I2C0
4 SCL1 I2C1
5 SDA1 I2C1
6 GND GND
3.1.10 Fan connector——J37
Pin num Pin name Function
1 GND Fan power GND
2 12V Fan power 12V
3 FAN_LOCKED Fan stuck detection
4 PAN_PWM Fan speed signal
（
test version Not used
）
3.2 LED driver board port position description
Port Mates with part number Function
J1 MOLEX 87439-0900 RED LED Port
J2 MOLEX 51021-0800 LED Control signal input
J3 MOLEX 87439-1200 GREEN BLUE LED Port
J4 MOLEX 87439-0700 Drive power input