APPENDIX C: Remote control protocol
3. Remote control protocol
The following remote control protocol applies to RS232 and RS485 remote control. The EEPBus protocol is a universal control protocol for EDSR and EDR (MPEG4) series’ digital video recorders. Therefore, it may occur that some of the following commands are not available for all DVR types.
1-1. Sample control code packets
Example 1 : A packet that sends "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) |
Example 2 : A packet that sends "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 sends "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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