Thor Fiber F-1VF-TxRx 1 Channel Composite Video over Fiber Transmitter and Receiver for easy transport of all your video over a singlemode(20km) or multimode(3000ft) fiber. There are many high end security cameras out there that still shoot in standard composite video. Thor's line of compact fiber transmitters/receivers are designed to extend the life of this equipment.Thor fiber optic security transmitters still use the same high end 10 bit digital encoding that our broadcast transmitters use, just in a less expensive chassis. Thor units come with standard singlemode optics with a transmittion distance of up to 20 km. Other options for special wavelength optics and power outputs are availible opon request. Easy to use and compact units make launching a scalable composite over fiber video solution easy and affordable.