Absolute singleturn and multiturn (battery buffered) solid shaft rotary encoders are used for generation of coded output signals which provide information about controlled object absolute position. 
In singleturn version rotary encoder AK58 has resolution from 9 up to 21 bit per revolution. Output signals interface is BiSS or SSI. Operating principle is photoelectrical. 
In multiturn version AK58 has singleturn resolution from 9 up to 20 bit per revolution with 12/16/20/24 bit resolution of multiturn counter on BiSS C interface. With SSI interface the encoder AK58 has resolution from 9 up to 18 bit per revolution with 9 up to 40 bit resolution of multiturn counter. Battery is placed inside of encoder. Operating principle is photoelectrical and magnetic.
Absolute encoder is intended to use in robotics industry, automated and automatizated lines in industry, control devices of equipment and machines, various control systems, precise machine tools and others.