The CL-850-DOM15-XT is a part from Intermatix's CL Series of "cold laser" data access modules. The CL-850-DOM15-XT consists of an 850 nm light source, a 15 cm fiber optic cable, and a mounting base. It is designed to provide precise, high-speed, high-performance optical data transfer over fiber optic cables. The module can be used to connect a range of RS-232, RS-485, and other control systems to long distances and with greater distances than conventional copper wiring. This allows for faster data transfer, greater distance coverage, and greater reliability than traditional copper wiring. The CL-850-DOM15-XT is designed for use in commercial and industrial settings, providing increased reliability and lower maintenance requirements.