8-14
PG 720 P Programming Device
C79000-G7076-C721-02
The serial port (COM2) on the PG 720 has the following pinout:
1
5
6
9
Figure 8-8
COM2 Serial Port (Connector)
Pin No.
Designation
Description
Input/Output
1
DCD (M5)
Data carrier detect
Input
2
RxD (D2)
Receive data
Input
3
TxD (D1)
Transmit data
Output
4
DTR (S1)
Data terminal ready
Output
5
GND (E2)
Ground
–
6
DSR (M1)
Data set ready
Input
7
RTS (S2)
Request to send
Output
8
CTS (M2)
Clear to send
Input
9
RI (M3)
Incoming call
Input
Serial Port
(RS-232/Mouse)
Hardware Information