Board level cameras provide a GPIO interface through an 8-pin 1.25mm Molex connector and a powered I2C interface through a 6-pin 1mm JST connector located on the USB3.0 board. The mating connector for the GPIO interface is a Molex 51021-0800 receptacle with Molex 50079-8100 wire crimp terminals and the mating connector for the powered I2C interface is a JST SHR-06V-S-B receptacle with JST SSH-003T-P0.2 wire crimp terminals. 



GPIO Interface Pinout and Description


Pin
Pin Name
Function
Comments
1
3.3 V
+3.3 VDC power output
Maximum current available from this pin is 50mA. Maximum external capacitive load on this pin is 50uF.
2
TRIGGER or GPI
TRIGGER input
General Purpose Input

3
GROUND
Logic and chassis ground
0 V reference.
4
GPO1
General Purpose Output 1
5
GPO2
General Purpose Output 2
6
CLOCK
I2C Clock
  • Both have an internal 1.5K ohm pull up resistor to 3.3V
  • Pixelink API-Refer to I2C Bus Communications.
7
DATA
I2C Data
  • Both have an internal 1.5K ohm pull up resistor to 3.3V
  • Pixelink API-Refer to I2C Bus Communications.
8
 n/c
No connection
 


Notes 

  • Pin 2 can be used as Trigger or GPI. For Trigger and GPI implementation, review the Trigger and the General Purpose Input Output articles respectively.
  • If Pin 2 is used as GPI, only GPIO with the index 1 can be configured for reading and returning a GPI status value.
  • Pin 4 and Pin 5 cannot be used or modified for additional I2C communication interface.

Trigger Polarity


Powered I2C Interface Pinout and Description


Pin
Pin Name
Function
Comments
1
VBUS
Power output from USB3 cable, shared with camera, typically +5 VDC
Actual voltage level depends on the computer, cable length, and total current load. The maximum current available from this output pin is 100mA.
2
GROUND
Logic and chassis ground
0 V reference.
3
DATA
I2C Data
  • Both have an internal 1.5K ohm pull up resistor to 3.3V
  • PixeLINK API-Refer to I2C Bus Communications.
4
CLOCK
I2C Clock
  • Both have an internal 1.5K ohm pull up resistor to 3.3 V.
  • PixeLINK API-Refer to I2C Bus Communications.
5
 n/c
No connection

6
 n/c
No connection


Notes 

  • Pin 3 and Pin 4 are interconnected with Pin 6 and Pin 7 of the 8-pin Molex connector. Thus, only one I2C communication interface can be used.