The CION Module™/FXT96 is a test board providing 96 bi-directional test channels with programmable I/O voltage between 1.8V and 5V in three groups of 32 channels each. It has been designed for mixed voltage applications using single ended signal transmission. Each channel can be configured independently as input, output, bi-directional or in high-impedance state, driving/sinking up to 24mA, and providing a special unstress feature to avoid interface destruction by high fault currents. Additionally, the module features hot swap capability. An advantage over other solutions is that the module’s connection setup can be done either by wire-wrap or via 50pin IDC cables. The design prepares for cascading multiple modules for configurations of more than 1000 I/O channels.