Studio Technologies Model 412
Feb 10, 2014 1:00 AM, By Erin Shipps, senior associate editor
Fiber transport system
The Model 412 is a high-performance portable or rack-mounted router for transporting multiple serial digital video, MADI digital audio, as well as gigabit Ethernet signals over single-mode optical fibers. The Model 412 comes in three versions offering a range of SDI/MADI input and output configurations. It uses optical multiplexing to transport six SDI or MADI signals over two single-mode optical fibers. The SDI or MADI signals, at rates of up to 2.97Gb/s, are transported over the fibers at wavelengths of 1310, 1490, and 1550 nm. In typical applications, the launch power and receive sensitivity are such that signals can be transported over a minimum distance of 10 kilometers. SDI input signals can be SD (270Mb/s), HD (1.485Gb/s), or 3G (2.97Gb/s). The 3G signals can be in either Level A or Level B format. DVB-ASI (270Mb/s) signals are also compatible.
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