RC: Integra CDC-3.4 RS-232 Commands

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Integra CDC-3.4 RS-232 Commands

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Integra CDC-3.4 RS-232 Commands

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Post 1 made on June 19, 2026 at 15:36

VirtualPnP

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I'm looking for the RS-232 protocol documentation for the Integra CDC-3.4 CD changer.

I've searched through the forums and found several posts referencing serial control of the CDC-3.4, but couldn't find any downloads. I've also tried contacting a few members who mentioned having the documentation, but unfortunately haven't received any replies.

I'm working on integrating the player into a Raspberry Pi-based home automation/control system and would love to take advantage of the serial interface.

If anyone still has the RS-232 protocol document, I'd greatly appreciate it if you could share it.

Thank you!

Post 2 made on July 5, 2026 at 12:33

PeterN

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I uploaded (I think) the Integra CDC protocol document to the files section, so it may be there in a few days.
In the meantime, you can find in the files section the Onkyo DVD player protocol, which includes commands for multi-disc units. The commands appear to be largely the same.

OP | Post 3 made on July 7, 2026 at 23:10

VirtualPnP

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Thank you very much, PeterN!

This is exactly what I've been looking for.

I really appreciate you taking the time to dig that up and upload it. I've been searching for this documentation for quite a while. It's great to finally have an original copy instead of incomplete information and dead links.

I'm looking forward to integrating this with my Raspberry Pi control system.

Thanks again for your help!

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