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Command
BT
16.1.7. RS-232C Communication Command (Digital Recorder Controller)
Commands are 2 bytes in length. Parameters (PARA) are also 2 bytes. They are followed by the multi-byte
DATA section.
Key response command
Operation
0:Power OFF, 1:Power ON
0:Standby or Stop
1:Pause
2:Playback
3:Fast Forward Playback
4 Reverse Playback
5:Rewind
6.Menu or Search Screen Display
7:Disk Error or disk operation such as disk recognition
0:Standby or Stop
1:Recording
2:Alarm Recording
3:Internal Timer Recording
0: No failure
1: Hard disk failure
2: Video loss failure
3: Fan failure
PARA
QT
DATA LEN
1
1
1
1
Contents
Operation Status
Status
Recording Status
Failure
16.1.6. RS-232C Communication Format (Digital Recorder Controller)
STX : Fixed to A0H.
LEN : The number of bytes from command to DATA
COMMAND : BT, MV, LG
PARA : Parameter
DATA : DATA section (variable depending on a command and parameter)
ETX : Fixed to AFH.
STX LEN
COMMAND PARA DATA ETX
Item
1 1 2 2 Variable 1No. of Byte