The Tiandy TC-FD4228T/R Series video/data transmitter and receiver support broadcast quality transmission of four channels of 8-bit digitally encoded video and two channels of bi-directional data and forward audio over one multimode and singlemode optical fiber. The modules are compatible with NTSC, PAL and SECAM CCTV camera systems and support RS-485 data protocol. Plug and Play design ensures adjustment-free installation and operation. LED Indicators are provided for instantly monitoring system status.