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4.5
TEXT ARTICLES (STREAM MODE ONLY)
SERIAL PROTOCOL
Models 8084/8084AD/8085 Closed Caption Encoder Manual
When the Article state is active, text data can be entered and stored as
complete messages. These messages can be transmitted in any order,
any number of times in any of the text channels.
contained within the articles (such as colour, etc.) specifically coded for
one data stream will be translated into the appropriate codes for the text
channel they are ultimately inserted into.
The message can be kept in memory or deleted when you have finished
transmitting it. Articles will be lost from the article memory in the event of a
power loss. The 8084 and 8084AD use an advanced memory allocation
scheme that allow them to store a virtually unlimited number of articles at
one time. The only requirement is the maximum amount of random access
memory available.
The command protocol allows editing of each line of the message by use of
the ^H (backspace) and ^X (delete line) characters before the <cr> is input.
A delay of 1 to 9 seconds can be inserted into the article by inserting ^Bn
into the article. (n is the number of seconds of delay desired)
Once a text channel is put into Article state, upstream data on that channel
will be blocked from the output queue. A data channel will be in the article
state as long as any article is assigned to its output queue.
4.5.1
Input Article
This command allows the user to input an article to the article memory and
assign it to the output queue of one of the text data channels.
Command:
^A0<sp>name<sp>tc<sp>rc<sp>k/d<sp>o/h<sp>n/l<cr>
data<cr>data . . .data<cr>^C
Default
^A0<sp>name<sp>T1<sp>9999<sp>D<sp>O<sp>L<cr>
The parameter name identifies the name of the article. The article can
subsequently be referred to by its name. If the article name already exists,
the previous article with that name will be replaced by the new article.
The parameter tc identifies the text channel number that the article will be
placed into.
The parameter rc identifies number of times the article will be repeated.
Values of 9999 or FFFF indicate that the article should be repeated
indefinitely. An article's repeat count will be decremented each time the
article is output in each output data stream.
The parameter k/d identifies whether the article should be kept or deleted
when it has been transmitted the specified number of times.
Revision 1.6.6
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