Gilderfluke&Co BR-SDC Serial Device Controller - Manual (Page 20)

the input is currently closed, the small ʻcʼ will be printed as an upper case ʻCʼ. This al-
lows you to see if the external connections to the Br-SDC are working properly. The
screen will not be updated until it redraws. You can force the screen to redraw by hitting
the <space bar> or <ESC>ape keys.
In most cases, strings used in the Br-SDC first search for a specific ʻLDP Startʼ frame
number on the LaserDisk/DVD. As soon as it finds this frame, the next characters in the
string tell it to start the player ʻplayingʼ. At this point, you can either start a timer or start
polling the LaserDisk/DVD for the end frame of the show. When the timer times out or
the LaserDisk/DVD end frame is found, then the next characters in the string tell the
LaserDisk/DVD to stop (or ʻstillʼ). If all of this has completed successfully, then the Br-
SDC will play whatever show/string has been set for the ʻ@endʼ. If there is a failure
anywhere in the string, then the ʻ@failʼ show/string will be played.
If you want to tell the Br-SDC to send out a string on power-up, then all you need to
do is set the action you want to happen on any unused ʻopeningʼ input. When power is
applied to the Br-SDC, it will see that this input has ʻjust openedʼ, and send the string
you have requested.
To loop a single string, all you need to do is tell any show to use the same string as it
does when it starts as the string to play ʻ@endʼ. It will then play this same string over
again each time it finishes. If you have an initialization that needs to be done to a serial
device before the first loop of the day, you can use a string that initializes the device as
the ʻnormalʼ triggered string, and then use the string that ʻplaysʼ the serial device as the
string ʻ@endʼ. It will play the ʻnormalʼ string once, and then loop the ʻ@endʼ string for the
rest of the day.
If you are synchronizing multiple LaserDisk/DVD players, you will probably want to
use a single input (wired in parallel on all of the Br-SDCs) to tell all of the LaserDisk/
DVD players to their respective start frames. A second input, wired in parallel to all of
the Br-SDCs, then is used to simultaneously tell all of the players to start ʻplayingʼ. You
can then either start a timer or start polling the LaserDisk/DVD for the end frame of the
show. When the timer times out or the LaserDisk/DVD end frame is found, then the next
characters in the frame tell the LaserDisk/DVD to stop (or ʻstillʼ).
If the Br-SDC has been set for binary mode, then the screen will appear as follows:
Gilderfluke & Co.• 205 South Flower Street • Burbank, California 91502 • 818/840-9484 • 800/776-5972 • fax 818/840-9485
Br-SDC Manual / December 30, 2013 9:24 AM / page 20 of 62