I am trying to establish exactly what is supported by some of my equipment. As most of you know, it's not always easy to find answers to questions like these, so hope someone who already knows can help.

Obviously these all work with IR, but what about IP and/or RS232?

Yamaha:
- DSP-Z11. Has serial and ethernet ports and I believe it can be controlled through both. Does it use the same codes as the Z7?
- DSP-Z9. This only has RS232 (no ethernet, so no IP) but I've not found any codes. Are they the same as the Z11? Z9? Something else entirely?

Panasonic:
These both have ethernet, but no serial.
- DMR-BS850
- DMR-BWT800
Are either/both of these controllable via IP?

As has been said elsewhere, it's almost criminal that even in 2011 manufacturers are not universally including an ethernet port on all devices and even when they do, they may not have included IP control. In the meantime, we, the users are left trying to establish just what does actually work.

So would appreciate any info on the above.