Sanyo DSR - 300 ユーザーズマニュアル

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INTERFACE SPECIFICATIONS
1
English
83
(when optional interface board is installed)
The received data/transmitted data (RXD/TXD) signal 
diagrams below are given from the point of view of the 
recorder.
z
Some commands consist only of a single byte.
The RXD/TXD signal diagrams for single-byte 
commands are as shown below. 
In the descriptions below, the RXD/TXD signal 
diagrams for commands of a single byte other than 
return codes have been omitted.
Precaution for RS-485 use
z
When a group number is set, the command will not 
execute if it does not match the group number.
The commands below are 1-byte commands. The recorder 
returns ACK (0AH) for these commands. Confirm that ACK 
has been received before sending the next command.
„
PLAY (3AH)
z
Starts playback.
„
STILL (4FH)
z
If sent during playback, starts still mode.
„
PLAY/STOP (3FH)
z
Stops the recorder.
„
ALARM  
(ABH)
z
If sent during playback of alarm image, playback 
skips to the next alarm.
„
ALARM  
(ACH)
z
If sent during playback of alarm image, playback 
skips to the previous alarm.
„
CHANNEL (8CH)
z
If sent during playback, displays the channel 
selection screen.
z
If sent while the channel selection screen is 
displayed, switches to the all-channel display.
„
COPY (8DH)
z
Copies the image to the backup area or Compact 
Flash card.
„
SEARCH (4AH)
z
If sent while the recorder is stopped, the <SEARCH> 
screen is displayed.
„
TIMER ON/OFF (60H)
z
Sets timer recording to “ON” (timer recording 
standby) or “OFF” (timer recording canceled).
„
SECURITY LOCK ON (69H)
z
Sets the security lock.
„
REC REQUEST (FAH)
z
Send this command immediately before sending the 
REC (CAH) command.
„
REC (CAH)
z
Starts recording.
z
If sent during single-image recording mode, records 
the set number of frames (fields).
z
Send this command after sending the REC 
REQUEST (FAH) command, and confirming that the 
recorder has returned the ACK response.
Use the STATUS SENSE (D7H) command to check the 
state of the recorder.
„
REC STOP (CFH)
z
Stops recording.
„
CHANGE DISK (7DH)
z
The HDD’s power must be turned OFF before it can 
be removed. (Removal is not possible with the power 
ON.)
Commands
Commands for recorder operation
RXD
TXD
0A
RXD
TXD
0A
CA
0A
FA
e00_l8had_us_7.book  Page 83  Wednesday, March 10, 2004  2:47 PM