Yes, I’ve been experimenting with what few systems I have, and I’ve verified that the protocol is substantially more basic for the BeoCenter 7000, as an example. As I mentioned, this protoco document is the ‘BM5000/Other” configuration setting (also seen as simply ‘Other’ in older MCL boxes) . A BM5000 is probably the richest component of the overall protocol, without migrating to MCL 2A, which I’m guessing is plain-and-simple straight DL86, making it incompatible with a BM5000. Until I have a chance to experiment with more systems, I’d venture to say that MCL82 itself is primarily a kind of “communication facilitator”, or “glorified IR extender” with an attached speaker switch, which is hard set in advance to the capabilities and IR protocols of whatever master system is specified.
That said,the 2-way MCL82 box does a great job of exposing the BM5000 speakerlink interface and control protocols, which I needed to document. Armed with this syntax, I should be able to. test control of the BM5000 directly using an Arduino connected directly via the BM5000 speakerlink pin. Unlike an MCL2A, the Arduino can speak and understand both MCL82 and DL86, and would facilitate a proper integration between A BM5000 and any DL86-enabled products. Stay tuned, I’m nearly there!