Interchangeable kits (WS) are modular in design. They consist of a interchangeable kit bottom part (WSU) and a interchangeable kit top part (WSO). They can be mounted quickly and easily in a few simple steps, and have a impressive robust design for reliable, consistent contacting in the .
Interchangeable kits are not fully functional test fixtures in their own right. They do not have their own lifting mechanism, so that they cannot generate their own contacting stroke. The contacting stroke is generated by the inline test system in which the interchangeable kit is used. Inline test systems are primarily part of a fully automatic production line featuring the various processes necessary for printed circuit board production. The electrical test (ICT/FCT) for checking the finished printed circuit boards is carried out in the inline test system.