Level 3 · terminal integration and scheme approval
PaytestMux
A multiplexer that switches test cards electronically, so testing continues without swapping cards by hand.
The testing problems this solves
Swapping cards one at a time costs time and invites mix-ups. The multiplexer holds several cards and switches between them electronically as each test case requires.
Connection and setup
It sits between the reader on the terminal side and the cards, selecting the target card on instruction from PaytestHub. Both contact and contactless are supported.
Where it is used
Regression testing that covers every card type, unattended continuous runs, and pre-certification checks where mix-ups must be prevented.
