AJA FiDO-T-ST 3G-SDI to Single-Mode ST Fiber Transmitter
The FiDO-T-ST is the sending half of an AJA fiber link, taking a 3G-SDI signal and launching it onto single-mode fiber for runs a copper cable could never manage. It uses a simplex ST fiber connector and carries 3G/HD/SD video up to 10 km, automatically selecting between 3 Gb, 1.5 Gb, and 270 Mb formats and giving the electrical isolation that fiber provides between buildings and gear. A greater than 15 dB return loss across 270 Mb to 3 Gb keeps reflections down for a stable picture.
A looping 3G-SDI output lets you tap the input signal locally, for a nearby monitor or a second device, while the fiber output heads to a distant FiDO receiver. The unit sips about 1.5 watts, ships with the DWP-U-R1 universal 5-20 VDC power supply, and is built to work indoors or out. AJA backs it with a five-year warranty.
| Function | 3G-SDI to single-mode ST fiber transmitter |
|---|---|
| Input | One 3G / HD / SD-SDI |
| Outputs | One ST optical fiber, one looping 3G-SDI |
| Formats | Auto-select 3G / 1.5G / 270 Mb |
| Reach | Up to 10 km over single-mode fiber |
| Return Loss | Greater than 15 dB (270 Mb - 3 Gb) |
| Power | 5-20 VDC (DWP-U-R1 universal supply included), 1.5 W |
| Warranty | Five years |






