The OH-TR-50-850-MM Data optical transceiver is a plug in option for select LYNX Technik yellobrik and Series 5000 products. This SFP module includes a receiver and a transmitter which facilitates the conversion of an electrical data signal into an optical signal for transmission over fiber, and will also receive an optical data signal for conversion to an electrical signal for further processing. Fixed TX wavelenght of 850nm suitable for distances up to 550m (multimode fiber).