marantz remote control (M-BUS)?

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I have marantz ST-48 tuner, which has no ir remote. However it can be controlled by marantz preamplifier or integrated amplifier, thru M-BUS. I have tried to find any information about this protocol, but foud nothing.

Does anyone here know anything about this protol? any information is needed. What I want to do is to add this control feature to my preamp...
 
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This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.