Example of connector
< External View >
13
25
GY-8240
Pin No.
I/O
1
–
2
O
3
I
4
O
5
I
6
I
7
–
8
I
9
–
10
–
11
–
12
–
13
–
14
–
15
–
16
–
17
–
18
–
19
–
20
O
21
–
22
–
23
–
24
–
25
–
[Information]
[Information]
[Information]
[Information]
[Information]
Cable Connection
When connecting PC and GY-8240, connect the each
connector refering to the above information.
GY-8240UWD
GY-8240FC
1
14
Signal
Direction
GND
→
TXD
GY
PC
←
RXD
GY
PC
→
RTS
GY
PC
←
CTS
GY
PC
←
DSR
GY
PC
GND
←
DCD
GY
PC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
→
DTR
GY
PC
NC
NC
NC
NC
NC
1-5. Connector/Cable Information
PC side : RS-232C
25-pin
9-pin
1
2
(3)
3
(2)
4
(7)
5
(8)
6
(6)
7
(5)
8
(1)
9
10
11
12
13
14
15
16
17
18
19
20
(4)
21
22
23
24
25
( ) : Pin numbers is the case of 9-PIN
PC
Signal
GND
TXD
RXD
RTS
CTS
DSR
GND
DCD
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
DTR
NC
NC
NC
NC
NC
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