ViewSonic IFP7550 - Gen 1 IFP8650 Gen 1 User Guide Spanish - Page 102
Remote Control Pass-through Mode
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10.3.3 Remote Control Pass-through Mode When PC sets the Display to Remote Control Pass through mode, the Display shall send a 7-byte packet (followed by "CR") in response to RCU button activation. In this mode the RCU shall have no effect on the Display function. For example: "Volume+" will not change the volume in the Display but only sends "Volume+" code to PC over the RS232 port. IR Pass Through-Function format Reply: (Command Type="p") Name Length ID Command Type Byte Count 1 Byte 2 Byte 1 Byte Bytes 1 2~3 4 order RCU Code1 RCU Code2 (MSB) (LSB) 1 Byte 1 Byte 5 6 CR 1 Byte 7 Example1: Remote Control pass-through when "VOL+" key is pressed for Display (#5) Send (Hex Format) Name Length ID Command RCU Code1 RCU Code2 CR Type (MSB) (LSB) Hex 0x36 0x30 0x70 0x31 0x30 0x0D 0x35 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 (-)/ BRIGHTNESSPOWER SOURCES (INPUTS) SLEEP MENU Code (HEX) 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 Basic *3.1.1 V V V V V V V V V V V V V 14 15 V 16 V 17 18 19 1A V Optional *3.1.1 V V V V V V V 93