MICROTRONIX DX-2200, Руководство пользователя

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DX-2200
– SD/HD-SDI Text & Graphics Inserter – User Manual
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2.0 to RS232 DB9 Serial Adapter Cable (StarTech PN: ICUSB232V2) and a 6 foot male to female DB9
RS232 serial cable. Refer to
Appendix B for more information.
4.8.1.2 DX-2200 Serial Port Control Commands
In the SERIAL mode, commands sent to the Serial Control Port control the operation of the DX-2200-TI.
Commands consist of ASCII alpha-numeric codes and are not case sensitive. All Serial Commands are
terminated with a carriage return (CR), a line feed (LF), or a semicolon. The use of a semicolon terminator
allows more than 1 command per line to improve readability of script files.
Commands may be sent directly to the DX-2200-TI one character at a time using a terminal program running
on a connected computer, or they may be developed in a text editor such as Notepad and then uploaded to
the DX-2200-TI by the terminal program. The second method has the advantage of allowing the commands
to be saved, viewed, edited and resent. The text editor used must save the configuration files as 8 bit ASCII
data.
Space or tab characters before a command or trailing a command are ignored, as are spaces or tabs
following a comma that separates parameters within a command. Any characters on a line following a tick (')
character are treated as comments. A comment may begin after a delimiter, or may follow a command with
or without spaces or tabs between the command and the comment.
ASCII string parameters are delimited with quotation marks. If a quotation mark or backslash character is
required within a string (for example to display as part of a text overlay), then it must be preceded by a
backslash character.
Valid and invalid Serial C
ommands are acknowledged with a ‘+’ and ‘-’ response respectively. Carriage
r
eturn, line feed, or semicolon characters without a preceding command are acknowledged with a ‘*’.
The command codes are extensible, additional commands and functionality can be added as required.
Contact Microtronix sales or technical support with your requirements.
Table 3: Serial Port Command Acknowledgement Codes
Response Code Mode of Operation
+ Valid command received
- Invalid command received
* Valid CR, LF, semicolon, or comment line received
4.8.1.3 Input Video Transparency SERIAL Command
The Input Video Transparency Commands set the transparency of the input 1 SDI video. By default the, the
SDI input video has no transparency. By using these commands, the input video can be made partially
transparent so that the black background layer becomes visible.
Table 4: Transparency SERIAL Command Codes
Command Code Mode of Operation
An
– Set transparency of the SDI input 1 video
A0 0% transparency
A1 12.5% transparency
A2 25% transparency
A3 37.5% transparency