The open ephys acquisition system uses the SPI standard specified by Intan tech.
We're using standardized 12pin polarized omnetics nano connectors on all headstages, tethers and acquisition boards.
On top of ensuring compatibility , this means that multiple tethers can be daisy-chained to make long tethers.
LVDS (low voltage differential signalling) signals mean that long, unshielded tethers of 10m or even more are possible.
Comparison between standard (commercial from intan) open-ephys SPI tether, and a regular analog tether.
Hand-built fine wire (cooner) open-ephys SPI tether for use in freely behaving mice or songbirds.