Sanyo DSR - 300 - Manual (Page 88)

INTERFACE SPECIFICATIONS 1
English
87
(when optional interface board is installed)
When the recorder is operated with the RS-485 interface in
use, it sends a 2-byte code indicating its setting.
First byte: Header (BEH or BFH)
Second byte: Mode change information
Bit assignments in second byte
When first byte is BFH
Bits 0, 1, 2, and 3 indicate the status.
Bits 5 and 6: Indicate start and end of alarm recording.
Bit 7: Indicates warning status.
Return codes
0,0,0,0 No change
1,0,0,0 Playback has stopped.
0,1,0,0 Still image is displayed.
1,1,0,0 Slow playback has started.
0,0,1,0 Reverse slow playback has started.
1,0,1,0 Playback has started.
0,1,1,0 Reverse playback has started.
1,1,1,0 Fast-forwarding has started.
0,0,0,1 Rewinding has started.
1,0,0,1 Normal recording has stopped.
0,1,0,1 Normal recording has started.
1,1,0,1 Timer recording has started.
0,0,1,1 Preparing to start timer recording.
1,0,1,1 Alarm recording has stopped.
0,1,1,1 Alarm recording has started.
1,1,1,1 Undefined
0,0 Normal
0,1 Alarm recording has started.
1,0 Alarm recording has ended.
1
Problem has occurred (recording failure, mechan-
ical problem or clog).
0 Normal
RXD
TXD BF
e00_l8had_us_7.book Page 87 Wednesday, March 10, 2004 2:47 PM