The micro rotary encoder contains a disc , PCB, and a plastic housing. It is the modular type of rotary encoder. It can be mounted to the motor shaft directly, which is very simple. Becauses of its macro size, it can be used to space limited mounting environment. The rotary optical encoder outputs A and B signals. The resolution is max 1024ppr. TTL and line driver outputs are the most popular signal format required by customers.