The CT2 counter-timer module is for counting all sources of TTL pulses including all ET Enterprises TTL photon-counting modules and TTL amplifier-discriminators. It has an RS232 computer interface. View outline drawing.
- 100 MHz capability
- 32 bit count capability
- integral microcontroller and RS232 interface to the host computer
- trigger input for synchronous counting
The following operating modes are available with the software application provided:
- continuous readings
- fixed number of readings
- continuous readings with trigger high
- fixed number of readings - start on falling edge of trigger
Software and User Manual
A comprehensive manual giving installation, start up software and programming procedures is supplied on CD-Rom with every CT2 module.
An ActiveX ® control driver is also provided to allow users to develop their own control software using LabView ®, Visual Basic ®, etc.
An RS232 cable is included with every CT2.
Also, a cable LEADAD6CT2 is available to connect an AD6 amplifier discriminator. The CT2 supplies the AD6 power requirements through this cable.
|connector||2.1 mm power socket|
|voltage||+4.75 to 5.5 V|
|current||60 mA max at 5 V|
|edge speed||125mV / ns min, 0.8 to 2.0 V|
|minimum pulse width||5.0 ns|
|pulse pair resolution||8.3 ns|
|maximum frequency*||100 MHz|
|sample time||10 ms to 300 s|
|connector||9 pin 'D' socket|
|format||no parity, 8 data bits, 1 stop bit|
|connector||Hirose 6 pin chassis plug|
|out 1||TTL; sink 20 mA, source 80 µA|
|out 2||open drain FET**|
*with ultra fast photomultiplier, and using dead time correction
**sink 60 mA, on resistance 0.45 Ω max.