Sync and Video : Working with Synchronization : Configuring Pro Tools for SMPTE

Configuring Pro Tools for SMPTE
For more information, see the following topics:
Synchronization and MachineControl system settings are enabled in the Pro Tools Peripherals dialog (Setup > Peripherals). These settings are system settings, and remain constant regardless of the particular session you are working on. Configure these settings before opening a session.
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MachineControl is supported on Avid HDX, HD Native, and Pro Tools|HD systems only.
Other settings are configured in the Session Setup window, such as the session Timecode rate, the Feet+Frames rate, the session start frame, and time display format. These settings are session-specific settings. These settings can only be configured when a session is open.