I'm trying to connect a Presonus DP88 to add 8 channels to my Quantum 2626. I have the BNC cable (thanks for not providing it, Presonus) and Quantum 2626 shows up in UC and in Logic Pro works great BUT getting flashing lights on both Quantum and DP88. Why doesn't PRESONUS record a video showing this? The manual on DP88 is very light on setup - the DAW is Logic Pro.