Specifications

Chapter 4: Using SYNC Peripherals 47
Bi-Phase/Tach Starting Frame
In order to use the Bi-Phase/Tach signal as a po-
sitional reference, the SYNC peripheral also
needs to know the timecode address for a partic-
ular frame of film. This positional relationship
is established by parking the film device at a
particular frame and setting the SYNC periph-
eral to the equivalent timecode value using the
Bi-Phase/Tach Starting Frame parameter.
To set the Bi-Phase/Tach start frame using
Pro Tools:
1 In Pro Tools, place the playback cursor at the
desired timecode location.
2 Choose Setup > Peripherals and click Synchro-
nization
.
3 Click the Reset Bi-Phase button.
The Timecode Display on the SYNC peripheral
updates to match the session timecode value.
To set the Bi-Phase/Tach start frame using the
front panel controls:
1 Press Set, and use the Up and Down switches to
display Set Gen (“SE7 6En”).
2 Press Set to display timecode numbers. One of
the timecode fields (hours:minutes:sec-
onds:frames) flashes.
3 Press the Up or Down switches to scroll
through the parameter values.
4 To set a timecode setting and advance to the
next field, press and release the Down and Up
switches simultaneously.
5 Repeat until you have finished setting the
SYNC peripheral to the desired generator start
time.
6 Press Set.
The LED Timecode Display stops flashing and
displays the start time.
To set the Bi-Phase/Tach start frame using the
SYNC Setup software utility (Windows only):
1 In the Generator/Bi-Phase Preset section, enter
the timecode value of the starting frame, in
hours:minutes:seconds:frames.
2 Click Set.
Bi-Phase/Tach Signal
The Bi-Phase/Tach signal can be set to any of the
following:
Bi-Phase: FWD = A leads B When the A square
wave is ahead of the B square wave, the direction
of the Bi-Phase signal is “Forward.”
FWD = B leads A When the B square wave is
ahead of the A square wave, the direction of the
Bi-Phase signal is “Forward.”
Tach: FWD = B is Low When the B signal is in a
“low” state, the rate and direction (“r–n–d”) of
the Tach signal is “Forward.”
Tach: FWD = B is High When the B signal is in a
“high” state, the rate and direction (“r–n–d”) of
the Tach signal is “Forward.”
To define the direction for a Bi-Phase/Tach input
signal using Pro Tools:
1 Choose Setup > Peripherals and click Syn-
choronization
.
2 Choose one of the following settings from the
Bi-Phase/Tach Wiring pop-up menu:
•
Bi-Phase: FWD = A leads B
• Bi-Phase: FWD = B leads A
• Tach: FWD = B is Low
• Tach: FWD = B is High
3 Click OK.