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VC4XXX_HW.pdf – Hardware Documentation VC4XXX Smart Cameras
1996-2014 Vision Components GmbH Ettlingen, Germany
31
Suggested Trigger Input Circuit PNP
The 1kΩ internal pull down resistor is not included in the initial hardware release (delivery until end of
2005). Please provide external pull down resistor in case the trigger input stays high.
Suggested Trigger Input Circuit NPN
Trig In, Pin 6
GND, Pin 3
1k
Ω
TTL Input
R
R
5V Out, Pin 2
Trig In, Pin 6
GND, Pin 3
1k
Ω
TTL Input
Camera Circuit
Trigger Input Circuit
Camera Circuit
Trigger Input Circuit
5V Out, Pin 2