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.