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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