Using latest technology, FHC developed the digital video optical transmitter/receiver by combining 1-84 channels video, 1-44 channels bi-direction audio & data, and 4E1, 10/100/1000Mbps ethernet to one fiber。The video signal is compatiable with PAL、NTSC and SECAM mode. The data channel support RS-232、RS-422 or RS485 standard signal. These devices are widely used in CCTV, video surveillance, homeland security, ITS etc. The Chassis expand the number of ports, and can be managed by the management system FHC-6000M which will be provided soon.