Not all machines need the full capability and functionality that PayLink delivers; kiosks, jukeboxes and some pay-to-play machines, for instance, often have only one or two input buttons or switches, with no payouts or other output requirements.
The answer for such machines is PayLink Lite, a physically smaller module that has two inputs and is available with a single protocol, ccTalk.
Voltage Input – USB powered
Input ports: 2 switch inputs 3V3 CMOS thresholds
with 3V3 pull-ups, 5mA max