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3
1. CONTROL INTERFACE OVERVIEW
The manual for the DTR-5.2 should also be used with this document to understand how
this protocol can be used the DTR-5.2.
1.1.Hardware Overview
・
3 wire RS-232C protocol
・
9 pin female D type connector
pin 2 = transmit, pin 3 = receive, pin 5 = signal ground
・
Communication Parameters
9600 baud
,8 data bits
,1 stop bit
no parity
,no xon/xoff
1.2.Message Overview
Receive Message Format
Note : The Interval Time Receiving the message need to take more than 50msec.
Send Message Format
Special Character
[CR]
Carridge Return
Ascii Code 0x0D
[LF]
Line Feed
Ascii Code 0x0A
[EOF]
End Of File
Ascii Code 0x1A
1st
2nd
3rd-5th
6th-
last
!
1
P
W
R
Q
S
T
N
[CR]
"[CR]"or"[LF]"
or"[CR][LF]"
Start Character
Send to AV Reciever Character
Command Characters
Parameter Characters
End Character
1st
2nd
3rd-5th
6th-
last
!
1
P
W
R
0
0
[EOF]
Start Character
Send to AV Reciever Character
Command Characters
Parameter Characters
End Character