Runco VISTAGE V-50HD - Manual (Page 78)

External Control
64 Vistage™ Series Flat-Panel Display Installation/Operation Manual
PRE
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IMINAR
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6.2
Using Discrete IR
Codes The DHD Controller accepts commands in the form of IR signals that conform to the
Phillips RC5 protocol. Each DHD Controller remote control button has an RC5 control
code associated with it.
You can use these codes to program a third-party, “universal” remote control unit to work
with the DHD Controller. These third-party products usually come with a computer
software application for this purpose. For more information, consult the documentation
provided with the remote control unit.
IR Command Protocol The IR control codes have the following characteristics:
• Each code consists of 14 bits:
• Two (2) start bits (always 1);
• A toggle bit. This bit is inverted every time a key is released and pressed again. This
allows the DHD Controller to distinguish between a button that remains down and
one that is pressed repeatedly.
• Five (5) address bits. The default address is 17 (binary 10001). To change it, select
Remote Code from the Miscellaneous menu (in the Service menu) and follow the
steps given on page 53.
• Six (6) data bits.
• The carrier frequency is 36 kHz, with the modulated pulses having a 25% duty cycle.
• Commands are sent at a maximum rate of 9 Hz.
The following serial commands are meant to emulate buttons on the remote control. Each button
has its own serial command, so effectively it is as if you were using the IR remote only you’ll be
doing so via serial commands. These commands provide active OSD responses just like the IR
remote.
DOWN NA NA Down-Arrow ( ) key
ENTER NA NA ENTER key
EXIT NA NA EXIT key
LEFT NA NA Left-Arrow ( ) key
MENU NA NA MENU
RIGHT NA NA Right-Arrow ( ) key
UP NA NA Up-Arrow ( ) key
Table 6-1. Serial Commands (continued)
Command
Parameter
(min/max)
Value
Stored?
Description
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