Trigger Functionality Variocam ® Hr Head - InfraTec VarioCAM User Manual

User Manual for the Thermographic System VarioCAM
7 Starting up
Connection Breakout Box – Option 2
Fig. 23 Breakout Box – option 2 (power supply, camera connection, Trigger)
Fig. 24 Breakout Box – option 2 (BNC, RS232, S-Video)
7.7 Trigger Functionality VarioCAM
Triggering only affects the 16-bit data transmission via FireWire. A 14-core system cable transmits the
TTL/CMOS-signal from the interfaces "T1" and "T2" on the Breakout Box to the VarioCAM
the included trigger cables in order to connect the Breakout Box, see Fig. 19 and Fig. 22.
■ T1 Trigger channal 1 is used by software IRBIS
■ T2 Trigger channal 2 is reserved for SDK and further specific applications.
The voltage level of the trigger signals from VarioCAM
The VarioCAM ® hr head reacts to low-high trigger edges. The trigger event effects a tagging of the
FireWire header index of the next frame (IR image). This tag will be evaluated by the IRBIS
implemented IRBGRAB.DLL, which will then save the respective data. The minimum length of the trigger
signal is 10 ns. However, the impulse should not be shorter than approximately 3 ms in order to make for
a precise assignment to the current frame. Nevertheless, a cadence with a duty cycle of 1:1 is also
possible.
User Manual
®
hr head
Fig. 22
Power supply, 12 V DV supply voltage
Connection for system cable to the
VarioCAM
Trigger input/trigger output
BNC video connection (PAL/NTSC-FBAS)
Serial interface (RS232)
S-Video
® hr head
® 3.
® hr head is 5 V TTL/CMOS at the input and output.
© InfraTec GmbH 2015
Trigger Cable Breakout-Box -
Option 2
® hr head
® hr head. Use
® 3-
3