47
APPENDIX A: Pinouts
A.3.3 T
HE
S
ERIAL
C
ONNECTORS
Pin
Signal
Direction
1
(No connection)
2
RD (Receive Data)
Input to Remote, output from Local
3
TD (Transmit Data)
Output from Remote, input to Local
4
DTR (Data Terminal Ready)
Output from Remote, input to Local
5
SGND (Signal Ground)
N/A
6
DSR (Data Set Ready)
Input to Remote, output from Local
7
RTS (Request to Send)
Output from Remote, input to Local
8
CTS (Clear to Send)
Input to Remote, output from Local
9
(No connection)
On Remote Module
(DB9 male)
1
1
5
5
6
6
10
10
On Local Module
(DB9 female)