TTS9011 is a 12-channel digital input/output board based on TTS chassis, specialized in TTS chassis integration, each channel supports high and low level outputs and acquisition, PWM outputs and acquisition, and it also supports output retrieval function when working in output mode. The board is based on CAN bus message control, bus rate of 1M bps, support Window, Linux system secondary program development, API interface makes the device can be easily integrated into other devices or software systems.