How do I switch between Pro Tools HD card and Logic/Symphony 64?

To switch between Pro Tools HD card and Symphony 64 PCIe/Thunderbridge for Logic or other CoreAudio Apps, you will use the same Symphony Cable (also referred to as 'PC-32' or 'Digi-Link' cable) connected to the Main port on Symphony I/O and move the opposite end from the Pro Tools Core, HDX, or HD Native card's Primary port and connect to the Symphony 64 Thunderbridge or Symphony 64 PCIe card's Main port. Then on Symphony I/O’s front panel, press and hold the right-hand encoder to display the currently selected Audio Interface Mode, press the right-hand encoder again and turn to select “Symphony” as the mode.