Interface specifications, 2 remote control protocol – EverFocus EDSR400M User Manual
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10.2 Remote Control Protocol
A computer or a terminal can be used to control the unit by sending the packet as following.
Interface Specifications
45
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Digital video recorder RS 485/232 Control Code Protocol
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1-1. Sample control code packets
Example1 : A packet that send "REC" key to Digital Video Recorder (ID=5)
0x85
(length)
0x00
(Receiver ID high byte)
0x05
(Receiver ID low byte)
0x4B
(OPcode = key )
0x08
(DATA1 = "Rec" keycode )
0x5D
(checksum)
Example2 : A packet that send "PAUSE" key to Digital Video Recorder (ID=4999)
0x85
(length)
0x27
(Receiver ID high byte)
0x07
(Receiver ID low byte)
0x4B
(OPcode = key )
0x0C
(DATA1 = "Pause" keycode )
0x0A
(checksum)
Example3 : A packet that send "PLAY" key to all Digital Video Recorder (broadcast)
0x85
(length)
0x7f
(Receiver ID high byte)
0x7f
(Receiver ID low byte)
0x4B
(OPcode = key )
0x0B
(DATA1 = "Play" keycode )
0x59
(checksum)