Generating a Digital Sample (Line)
You can use the digital lines in your DAQ device to generate a digital sample. This operation is based on software timing. Each line corresponds to a virtual channel in your task.
All E and M Series devices support TTL (transistor-transistor logic)-compatible digital signals. A TTL signal has two states, logic low and logic high:
Logic Low = 0 V to +0.8 V
Logic High = +2 V to +5 V
Common digital generation applications include controlling relays and driving external devices, such as an LED.