Available with Optolink technology, Models XHI 801and XHI 803 can transmit encoder position data using fiber optics. Optolink provides secure data transmission up to 1,500 m in harsh industrial environments where electrical noise and long cable lengths can be problematic, such as mining, cranes, wind turbines, and pulp/paper processing applications. Lighter than copper, optical fiber also offers galvanic isolation which can help prevent damage from lightning.