While many current video deployments are using newer digital transmission systems; legacy analog systems are still relevant and less expensive than their more current counterparts. Thor Fiber now has the F-4HD-1D-TVI-TX/RX, a commercial grade Video Over Fiber system in an easy to use kit. Electronic and optical adjustments are never required with these automated plug and play units. LED indicators are provided for instant monitoring of the system status. Devices are available for either standalone or rack-mount installation, which is suitable for different working environments. Compatible with AHD-H, AHD-M, AHD-L / HD-TVI 720P & 1080P / HD-CVI 720P & 1080P. The optical module and core circuit are high quality commercial level components that have unparalleled stability, and all optical & electrical interfaces match or exceed international standards.