Rs-232c cable spec, Rs-232c transmission spec, Rs-232c communication format – AVer CP300 User Manual
Page 29: Rs-232c command table
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R
R
S
S
-
-
2
2
3
3
2
2
C
C
C
C
a
a
b
b
l
l
e
e
S
S
p
p
e
e
c
c
Make sure the RS-232 cable matches the cable spec design.
PC COM Port
DSUB-9P (Female)
1
2
3
4
5
6
7
8
9
AVerVision RS-232 Port
DSUB-9P (Female)
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
CD
RXD
TXD
DTR
SG
DSR
RTS
CTS
RI (CI)
TXD
RXD
SG
R
R
S
S
-
-
2
2
3
3
2
2
C
C
T
T
r
r
a
a
n
n
s
s
m
m
i
i
s
s
s
s
i
i
o
o
n
n
S
S
p
p
e
e
c
c
Star bit
：
1 bit
Data bit
：
8 bit
Stop bit
：
1 bit
Parity bit
：
None
X parameter
：
None
Baud rate(Communication speed)
：
9600bps
R
R
S
S
-
-
2
2
3
3
2
2
C
C
C
C
o
o
m
m
m
m
u
u
n
n
i
i
c
c
a
a
t
t
i
i
o
o
n
n
F
F
o
o
r
r
m
m
a
a
t
t
Start Code(1 Byte)
: 0xFF
Type Code(1 Byte)
: 0x70
DataLength Code(1 Byte)
: 0x01
Data Code(1 Byte)
: See the Command Table for reference.
CheckSum Code(1 Byte)
: See the Command Table for reference.
Format : Start + Type + DataLength + Data + CheckSum
Example : 0xFF + 0x70 + 0x01+ 0x1 + 0x70 (Command Power)
R
R
S
S
-
-
2
2
3
3
2
2
C
C
C
C
o
o
m
m
m
m
a
a
n
n
d
d
T
T
a
a
b
b
l
l
e
e
FUNCTION
DATA CODE
CHECKSUM
CODE
POWER 0x1
0x70
ENTER 0x2
0x73
UP 0x3
0x72
DOWN 0x4
0x75
LEFT 0x5
0x74
RIGHT 0x6
0x77
MENU 0x7
0x76
AUTOFOCUS 0x8 0x79
SOURCE 0x9
0x78
AUTO IMAGE
0xA
0x7B
CAPTURE 0xB
0x7A
FREEZE 0xC
0x7D