User`s guide

Chapter 4: Serial Control Mode and Transport Control 19
To enable Serial Time code:
1 In Pro Tools, choose Setups > Peripherals and
click Synchronization.
2 Make sure USD and DigiSerial Port are the se-
lected device and port.
3 Make sure the USD clock reference is set to
Video Ref.
4 Click Machine Control in the Peripherals win-
dow.
5 Select “Use Serial Time Code for Positional
Reference.” This option can only be selected if
the currently defined sync peripheral is the
USD.
Serial Time Code and USD Settings
When Serial Time Code is enabled, the Clock
Reference setting in the USD Setup section of
the Session Setup window switches to Video Ref-
erence/Video In/Word Clock 1x.
Additionally, the Positional Reference pop-up is
dimmed and displays Serial Time code.
Generate and Serial Time Code
Pro Tools automatically puts the USD in Gener-
ate mode and prohibits any changes to the USD
Positional Reference setting. While Serial Time
Code is being used, this Generate mode is en-
gaged to calculate frame-edge accuracy in
Pro Tools.
Synchronization settings for Serial Time Code.
Serial Time Code enabled in the Peripherals dialog
Session Setup when Serial Time Code is enabled