Reading here the new post about SpeakerLink wiring reminds me that I will lose the BNC comms connection on my DSP7200SE when I trade them in for DSP9. That’s a problem because audio only comes from my DDC through the AES-to-Cat8 cable I made, while control is currently routed through a spare 568.2mm surround unit with a DIN-to-BNC. If DSP9 only gets wired control over SL, or via the supplied B-link adapter for Bluetooth (which needs the RJ45 jack, blocking my audio feed), what options do I have other than another MSR to the speakers’ IR receiver?

Two questions:
Is it possible to make use of the DSP9’s USB maintenance input?
Can a RS232 serial connector be wired to the Cat8 cable for me to continue with vMSR on my iPad?

Server: Audiolinux Roon NUC w/HAF room correction and crosstalk cancellation
Theater: 218, Allo Signature, miniDSP, HD621, C61R, DSP5200SEu, 420, 33, NHT subs
EtherREGEN w/Finisar fiber, Shunyata Denali
Living Room: RPi4 Diretta Host & Target, Ghent USB > Singxer SU-6 > AES NA M-Links > DSP9
Shunyata TritonV3, LHY lps, Farad Super3, Stack AUVA feet