SDI adapters
============

To transmit video signals (e.g. ``HDMI``) over a long distance, we're using ``HDMI to SDI`` and ``SDI to HDMI`` adapters from the `ES 3C Boutique Store <https://www.aliexpress.com/store/4664031/search?origin=y&SearchText=sdi>`_.

According to the docs, the adapters support:

- HD source on two SDI displays
- HD inputs 480i, 576i, 720p, 1080i, 1080p
- 720p/1080i to HD-SDI (SMPTE 292M, at bitrates of 1.485 Gbit/s)
- 1080p to 3G-SDI (SMPTE 424M/425M-AB, at bitrates of 2.970 Gbit/s)
- Output distance of 100 meters (3G-SDI), 200 meters (HD-SDI), or 300 meters (SD-SDI)

micro USB hack
--------------

On the ``SDI to HDMI`` in the rack, we desoldered the **micro USB** ports and changed them to **JST** plugs for better reliability.