Digital Input (Trigger) Circuit - THORLABS DCU223x Operation Manual And Sdk

5.5.2.3 Digital Input (Trigger) Circuit

Digital input specifications
Level low
Level high
Voltage range
Trigger pulse width (edge)
Trigger edge steepness
Breakdown voltage
Input current
For interpreting the trigger signal, either the negative or the falling edge can be used. The digital input is
galvanically isolated using an optocoupler to protect the camera and the PC against surges. Only DC voltages may
be applied to the digital input.
Digital input wiring
© 2013 Thorlabs GmbH
Min. Max.
0 1
5 24
0 -
10 -
35 -
- 50
10 -
Wiring of the trigger connector
V
V
V
µs
V/ms
V
mA
5 Specifications
493