3-Channel C-Series Direct Injector Driver Module—The NI‑9751 can drive typical common rail diesel solenoid injectors, gasoline direct injectors, and piezo actuated injectors. It accommodates up to three solenoid direct injectors or two piezo injectors, but you must use the same injector type per module. You can individually control each NI‑9751 channel for timing and duration, but channel operation can not overlap. When you configure the NI‑9751 for piezo mode, channel 3 is not available and you must short its terminals together.