[rescue] looking for cable for Sun Sbus Expansion

[Romain Dolbeau]

Le lun. 27 mars 2023 à 18:36, rescue via rescue <rescue at sunhelp.org> a écrit :
> I have 2 Sbus Expansion chassis, one Sun, and one Integrix (IIRC).

Lucky you, those must be quite rare. The Integrix one seems to have
left no mark on the Internet other than an old press release...

> I have the expansion chassis and the sbus controllers

Any chance of dumping & sharing the ROM on those ? I wonder how the
hierarchical SBus is implemented. There's some specs in the standard,
but an example (or two!) would make it easier to understand.

> but on both cases I do not have the cables.
> By looking at it, I believe they probably both use the same cable.

I'm presuming they are using quite a large parallel connector ? Do you
know what kind ? Perhaps you could share some pictures ?
I wouldn't expect some parallel-to-high-speed-serial, that didn't
become a thing until later.
If the plug itself follows some 'standard', it might just be a
straight-through cable that could be replaced by another/rebuilt.
SBus timings are tight but would probably work over a not-too-long
distance with a well-made parallel cable, so my guess (never seen the
box or controller) is that it's mostly just drivers/buffers to help
with signal integrity and the protocol is going through unchanged.

Cordially,

-- 
Romain Dolbeau