User manual Cito 500
Hensel-Visit GmbH & Co. KG
47
COM Interface
Via the COM interface, the unit can be connected to a TTL
1
signal
transmitter for triggering flash discharge.
1
Here, the term TTL stands for “Transistor Transistor Logic“ and means signal levels as
they are common in logic circuits. The TTL signal must have a level of 0V (low) at
resting state. The positive 5V (high) edge triggers a flash.
BNC socket
Plug the BNC plug of the BNC
cord into the BNC socket of the
flash unit.
Connect the other end of the
BNC cord with the application
available with the TTL trigger
signal.
The duration time of the flash can be also set via the width of the TTL
pulse. Of course, this cannot be longer than the maximum flash duration.
Example: If you want to set off a flash with duration of 200
μ
s, you apply
a pulse with a width of 200
μ
s to the TTL socket (+5V).
You can set the time difference between flashes via the distance of the TTL
pulse.
Example: If you want a break of 200
μ
s between flashes, produce a pulse
sequence with 200
μ
s pulse distance.
Содержание CITO 500
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