The AEDB-9340 optical encoder series are six-channel optical incremental encoder modules with codewheel. The encoder is compliant to RoHS directive and had been declared as a lead free product. When used with codewheel, these modules detect rotary position. Each module consists of a collimated LED source and detector IC enclosed within a small plastic package. Due to highly collimated light source and unique photo detector array designs, these modules are extremely tolerant to mounting misalignment.