Pinouts
RS-232 Port Pinouts
RS-232 Connector (Female DB-9F)
Pin 1 DCD
Connected to Pin 6
Pin 2 TR1
Transmit Data (Output)
Pin 3 RC1
Receive Data (Input)
Pin 4 DTR
Connected to Pin 6
Pin 5
Ground
Pin 6 DSR
Connected to Pin 4
Pin 7 RTS
Connected to Pin 8
Pin 8 CTS
Connected to Pin 7
Pin 9
Not Connected
IO Port Terminal Interface
I/O Port Screw Terminal Connector (F
Pin 1
V+
Pin 2
Not connected
Pin 3
Not connected
Pin 4
Not connected
Pin 5
Not connected
Pin 6
Not connected
Pin 7
Not connected
Pin 8
Not connected
Pin 9
Not connected
Pin 10
Input 0
Pin 11
Input 1
Pin 12
Input 2
Pin 13
Input 3
Pin 14
V-
