Aviation Buses and Descriptions

Here is the main page that covers the topic of Avionics Data Buses. Normally an Avionic Interface is a cable bus, either copper or fiber. However; there are a number of Backplane buses used in the Avionics Industry.

Anyway I added more data to the Commercial Standard Digital Bus [CSDB]. CSDB is an Avionics data bus based on RS422 interface. The CSDB standard was released in 1983, while the last release or revision I've found is 1993. I'm sure that this copper wire interface is still in common use, if only based on the length of time planes are kept flying.

I also updated the page that lists data buses by letter; Interface Buses 'C'.

Data, information and specifications are hard to find for avionics buses.

The attached pic is under a GNU license, a 727 which were retrofitted with the then new CSDB interface. Of course there are other planes that used the CSDB interconnect.

Weight is the main issue, you want a serial bus using Fiber, not Copper wire.....