Remote Control Pass-Through Mode - ViewSonic IFP5550 Guia Del Usuario

9.3.3 Remote Control Pass-through mode

When PC sets the TV/DS to Remote Control Pass through mode, the TV/DS shall
send a 7-byte packet (followed by "CR") in response to RCU button activation. Note,
that in this mode the RCU shall have no effect on the TV/DS function. For example:
"Volume+" will not change the volume in the LCD but only sends "Volume+" code to
PC over the RS232 port.
IR Pass Through-Function format
Reply: (Command Type="p")
Name Length
Byte 1 Byte
Count
Bytes 1
order
Example1: Remote Control pass-through when "VOL+" key is pressed for TV-05
Send (Hex Format)
Name Length
Hex 0x36
Key
1
2
3
4
5
6
7
8
9
0
-
RECALL (LAST)
INFO (DISPLAY)
ASPECT (ZOOM, SIZE)
VOLUME UP (+)
VOLUME DOWN (-)
MUTE
CHANNEL/PAGE UP (+)/
BRIGHTNESS+
CHANNEL/PAGE DOWN (-)/
BRIGHTNESS-
ID Command
Type
2 Byte 1 Byte
2~3 4
ID Command
Type
0x30 0x70
0x35
Code (HEX)
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
11
12
13
14
70
RCU Code1 RCU Code2
(MSB) (LSB)
1 Byte 1 Byte
5 6
RCU Code1 RCU Code2
(MSB) (LSB)
0x31 0x30
CR
1 Byte
7
CR
0x0D