The OW-901-32 is a 32-channel bi-directional digital signal conditioning card that scales input and output digital signals from TTL lab equipment to application voltage ranges from 3 to 60 V. The OW-901-32 is designed as a general “supply ratiometric” digital I/O front end. It can be used in any situation where the output digital levels or input thresholds change or are “ratiometric” with the power supply. Typical output uses are to simulate devices that reference vehicle power, and typical input uses are to monitor devices that output a discrete signal referencing vehicle power, such as switches, or drive signals like fuel injectors.

The OW-701-16 is a 16-channel bi-directional current measurement card based on Hall-Effect sensors used to measure the current between an electrical source and a load. The channels support 17, 27, and 55 A measurement ranges and can output analog signals scaled to -10 to +10 V. The OW-701-16 can measure high side or low side signals, signals with alternating polarity, and signals with large common mode voltage swings. This makes it ideal for monitoring actuator drive signals, and the operating currents of most devices.

The OW-902-8 is an 8-channel digital signal conditioning card that acts as a front-end signal conditioner for NI real-time logic modules to simulate 2-wire wheel speed signals. When running a software model of a wheel speed sensor, the logic module produces low voltage logic signals, which the OW-902-8 converts into time-varying discrete current signals that simulate an operating wheel speed sensor signal and sensor diagnostic information.