Report Supply Chain Risk Mitigation in Embedded Posted April 19 On 4/9/2022 at 7:24 AM, ShaunR said: [...] So he designed a 64 channel card with 32 digital in and 32 digital out that could sink 3 amps per channel. [...] I worked with an engineer named "Glen". Glen was the inventor of GXI, or "Glen's Expense-able Interface" with a small selection of I/O devices to choose from. It sounds similar to what your guy did, but for a different reason. None of his projects came with a budget for test equipment!