Board level cameras with an EMV (Extended Machine Vision) interface on an 8-pin, 1.25mm header connector provide 3.3V TTL-level connections for one external trigger and four general purpose outputs.  The mating connector is a Molex 51021-0800 receptacle with Molex 50079-8100 wire crimp terminals.


EMV interface connector

EMV Connector reference J6

Use a 8-pin 1.25mm cable housing Molex 51021-0800 and crimp terminals Molex 50079-8100


EMV pinout description


 Pin
 Pin Name
 Function
 Comments
1
3.3 V
+ 3.3 VDC power output
Maximum current available from this pin is 50 mA. Maximum external capacitive load on this pin is 50 uF.
2
TRIGGER
TRIGGER input
  • 3.3V TTL input has internal 1 K ohm pull up resistor and HCMOS inverter.
  • A voltage transition from 3.3V to 0V will initiate a positive trigger.
  • PixeLINK API-Refer to the functions PxLSetFeature, PxLGetFeature and Trigger Types.
3
GROUND
Logic and chassis ground
0 V reference
4
GP1
General Purpose Output 1
  • 3.3V TTL outputs from HCMOS driver maximum current 5mA.
  • PixeLINK API-Refer to the functions PxLSetFeature, PxLGetFeature and GPIO Mode.
5
GP2
General Purpose Output 2
6
GP3
General Purpose Output 3
7
GP4
General Purpose Output 4
8
n/c
No connection

 

EMV interface schematic


 Schematic
 Comments


  • 3.3 V Power Output, 50 mA max
  •  Falling edge on /trigger input represents "positive" trigger in camera.

  •  Rising edge on GPO output represent "positive" outputs. Each 5mA max.

  • Use 8-pin 1.25mm cable housing Molex 51021-0800 and crimp terminals Molex 50079-8100.


See timing diagrams for the board level camera


For all cameras, the value of the trigger input at any given time can be read from the IIDC Trigger Inquiry register.  This can be used as a general purpose input if one is required.