MICROTRONIX DX-4400 Series, User Manual

Page: 26 / 125

DX-4400
– 3G-SDI Text & Graphics Overlay Inserter – User Manual
Page 26 of 125
The SM command takes up to two arguments: the first is the mode to switch the DX-4400 into and the second is
to assign the Serial Command Port to use for Command parsing. Changing between Modes takes several
seconds during which time the output video is interrupted and no additional commands can be sent to the unit.
Table 6: Set Mode Command Syntax
Parameters Description of Command
SM
– Sets the Mode of Operation where <Serial> is optional and can be either RS232 or USB
SM DUAL <Serial> Selects the Dual Text Inserter Mode (Dual TI)
SM LDUAL <Serial> Selects the Low Latency Dual Text Inserter Mode (Dual TI)
SM ZDUAL <Serial> Selects the Dual Text Inserter Mode with Zoom (Dual TI)
SM PIP <Serial> Selects the PiP Text Inserter Mode (PiP TI)
SM 4K <Serial> Selects the 4K Text Inserter Mode (4K TI)
SM L4K <Serial> Selects the Low Latency 4K Text Inserter Mode (4K TI)
SM Z4K <Serial> Selects the Zoom 4K Text Inserter Mode (Z4K TI)
SM LPIP <Serial> Selects the Low Latency PiP Text Inserter Mode (LPiP TI)
SM <serial>
Assigns location of the Serial user connection of the Command Port
Where <Serial> can be either RS232 or USB
SM I Initialize Saveset Database to factory defaults
SM Restart the unit no changes
Notes:
1) The factory default configuration assigns the Serial Control Port to the RS232 Port (instead of the USB
Serial Port).
2) The commands accept the shortest unique string. For example, it is acceptable to specify SM LD instead
of SM LDUAL.
3) Use of the Set Mode (SM) Command does not clear the user information stored in the Saveset Database.
3.7.1.1 Example - Set Mode Command
To set the DX-4400 to operate as a PiP Text Inserter and to change the Serial Command port from the RS-232
Port (the factory default assignment) use the following command via the Control Port (Serial or Network):
SM PIP USB
3.8 Overview of Overlay Fields
To generate a Graphic Overlay / On Screen Display (OSD), Fields are defined to specify the parameters and
features (attributes) of each object displayed. Four types of Overlay Fields are available:
1) Text Fields
– display single line of ASCII characters and are defined using the ‘T’ Command.
2) Graphic Fields
– displays shapes (Circle, Ellipse, Line, and Rectangle) and defined by the
‘G’ Command.
3) Image Fields
– display an image from a user supplied file stored on the DX-4400 and are defined by the
"I" Command.
4) QML Fields
– run QML Script files stored on the DX-4400 and are defined by the "Q" Command.
All Fields are mixed together taking into account their transparency and position in the layer stack up (defined by
the Z parameter of the field) to generate a single blended Overlay Layer that is mixed on top of the SDI input
video channels.