I recently bought a 8 pin M12 cable for interconnecting my two cases containing cadet+castle (soon also the sandins) modules.
For now i use an XLR cable cut in half for power, but wanted to get a cable that is not mixed up with other signal types (to avoid accidentally inputing +/-12 volts to some delicate equipment by mistake), and wanted to include the bus sync signals for my other case.
Initially i thought about hacking it in a much simpler way than what i can read in this thread.
I wanted to interconnect the bus sync by just plugging a 16 pin cable into one of the sockets in the busboard, and then use only the sync signals leads from the ribbon cable to feed the sync signals through the M12 interconnect cable (together with power: ground, syncs, and +12V, -12V), throught the interconnect cable, and then on to the next busboard by plugging the sync signals directly to the busboard through one of the 16 pin sockets,(again via a ribbon cable, but only using the sync pins) power goes through screwterminals on both busboards.
I dont se if this should not work, but havent tested it yet…
Will have to read through this thread a few times before i venture into cutting the cable in half and attaches it between my cases.
@creatorlars Would this (going directly between the sync pins on different busboards) be a viable way to get bus sync between cases?
The cable i bought might be of interest to you also. the connector type comes with all different pin numbers, i went for 8 pins.