Our compact and rugged Fiber Optic Converters are designed for reliable performance in harsh environments. We offer a wide range of high-quality products for use across multiple industries. View Our Fiber Optic Converters Beginner's Guide See a demonstration of the RLH Contact Closure Over Fiber System on our YouTube Channel What type of Fiber Optic Converter are you looking for? Contact Closures 4~20mA/0~10V Phone (POTS) T1/4W Data Serial Data Ethernet Multiplexer Looking for accessories? Accessories Don't See What You're Looking For? Ask Our Experts.