Avid Technology Digidesign USD User Manual page 64

Bi-Phase/Tach Pulses Per Frame
This selection is used for specialized appli-
cations that involve film or other equip-
ment that output Bi-Phase/Tach informa-
tion. The parameter values set the number
of Bi-Phase/Tach pulses per frame of time
code.
To set the pulses per frame value for a Bi-
Phase/Tach signal:
Select Bi-Phase/Tach Pulses Per Frame
1
(bIPH PPF), using the Set, Down, and Up
switches.
Press the Set switch again. The LED Time
2
Code Display will switch to display the cur-
rent parameter values, from 2 to 255 pulses
per frame. The readout will look something
like this:
0002
Use the Down and Up switches to scroll
3
through the parameter values. Pressing and
releasing the switches will change the
value by just one pulse per frame. Pressing
and holding the switches will scroll at a
faster speed.
When you have chosen your desired op-
4
tion, press Set. The LED display will return
to showing time code numbers. The USD
will retain the setting, even when the unit
is powered off and on again, until it is
changed.
Bi-Phase/Tach Input Signal
This selection is also used for specialized
applications that involve film or other
equipment that output Bi-Phase/Tach in-
60 Universal Slave Driver
formation. Here, the parameter values will
be used to define the direction of the Bi-
Phase/Tach signal.
For complete instructions, see "Bi-
Phase/Tach Signal" on page 43.
Video Format/System
Selects the format (NTSC or PAL) for both
the incoming and outgoing video signals.
NTSC The standard for North and South
America, Japan, and certain other parts of
the world
PAL Used in most of Europe, Asia, and Af-
rica. Users of SECAM video (for France, Rus-
sia, and certain other parts of the world)
should select PAL.
Please be sure you have selected the cor-
rect format! The USD will not warn you if you
have chosen the wrong one.
To select the desired video system:
Select Video System (VIdEo SY), using the
1
Set, Down, and Up switches.
Press the Set switch again. The LED Time
2
Code Display will switch to display one of
the two parameter values:
• NTSC (n75C)r
• PAL (PAL)