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AvaTrigger External trigger box



The AvaTrigger is a trigger source that can be easily attached to any  of the AvaSpecs product line. The AvaTrigger has 3 different settings for external triggering, i.e. an optical trigger, a TTL trigger from an external source and a pushbutton trigger. The optical trigger is useful to measure pulsed light sources, the AvaSpec can start integration time within microseconds after the optical signal starts. The optical trigger has an SMA905 connector to easily couple to our comprehensive line of light sources and accessories through SMA coupled fiber optics. An additional feature of the AvaTrigger in combination with the AvaSpec-USB1 platform is that it automatically generates multiple triggers, when the software settings require to do so, for example for multiple averages. Implemented is a feedback control loop that makes sure the total amount of spectra taken equals the number of averages set in the software. Internal timing is coordinated through the digital IO of the AvaTrigger and AvaSpec-USB1 platform spectrometer.

The AvaTrigger-USB1 comes with a IC-DB15-2 interface cable and needs no external power supply.

For the AvaSpec-USB2 platform the feedback control for multiple hardware trigger is obsolete, since this option is standard integrated in the AvaSpec-USB2 platform spectrometers. The AvaTrigger-USB2  comes with an IC-DB26-2 interface cable.

Technical Data
 
Trigger Input
Opto
External TTL
Pushbutton
Internal Delay time to TTL output
Ca. 300 ns*
50 ns
100 ns
Minimal pulse duration Trigger in
10 µsec
Power consumption
2 mA @ 5VDC (internal)
External IO connector
pin 4 (Ext. TTL), pin 10 GND
IO connector to AvaSpec
Pin 3 (5VDC), Pin 4 (hardware trigger to AvaSpec), pin 12 (data ready)**
Dimensions
82 x 110 x 44 mm

depending on the slew rate of the light source
** only for USB1 version



Ordering Information
AvaTrigger-USB1    External trigger source for all AvaSpec-USB1 spectrometers, incl IC-DB15-2
AvaTrigger-USB2    External trigger source for all AvaSpec-USB2 spectrometers, incl IC-DB26-2