HEDS-9100 rotary digital encoder - Hewlett Packard

HEDS-9100 incremental rotary digital encoder by Hewlett Packard. 

Download Avago HEDS9100 datasheet:

quality item, usually mounted on the rear of positioning motors to sense direction and speed. 

Status: NOS ( New Old Stock) ex military supplier stores, part stored but not issued. 

RoHS compliant: tbc