EverFocus EDSR-400, EDSR-600 Remote Control Protocol, Appendix C Serial Interface Specifications

Appendix C: Serial Interface Specifications

3. Remote Control Protocol

A computer or a terminal can be used to control the unit by sending the packet as following.

1-1. Sample control code packets

Example1 : A packet that send "REC" key to DVR (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 DVR (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 DVR (broadcast)

0x85	(length)
0x7f	(Receiver ID high byte)
0x7f	(Receiver ID low byte)
0x4B	(OPcode = key )
0x0B	(DATA1 = "Play" keycode )
0x59	(checksum)

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