TRANSCOM 1-16CH HDTVI/CVI/AHD TO Fiber Converters is universal type supporting High Definition Analog video format HD-TVI / HD-CVI / AHD , can simultaneously transmit 1 channels video and 1-ch RS485 over one core multimode or single-mode optical fiber. It also supports the regular analog video format such as PAL / NTSC /SECAM , it is a kind of universal fiber transmission solution / product for CCTV analog video/data signals . Devices are available for either standalone or rack-mount installation, which is suitable for different working environment . Electronic and optical adjustments are never required. LED indicators are provided for instantly monitoring system status.