7
7-12
PG 760 Programming Device
C79000-G7076-C761-01
The serial port (COM1) on the PG 760 has the following pinout:
1
13
14
25
Figure 7-6
Serial Port COM1 (Socket Connector)
Pin No.
Designation
Description
Input/Output
2
TxD (D1)
Serial transmit data
Output
3
RxD (D2)
Serial receive data
Input
4
RTS (S2)
Request to send
Output
5
CTS (M2)
Clear to send
Input
6
DSR (M1)
Data set ready
Input
7
GND (E2)
Functional ground (reference
potential)
-
8
DCD (M5)
Data carrier detect
Input
9
+TTY RxD
TTY receive
Input
10
-TTY RxD
TTY receive
Input
18
+TTY TxD
TTY send
Output
19
+20mA
Isolated current source
-
20
DTR (S1)
Data terminal ready
Output
21
-TTY TxD
TTY send
Output
22
RI (M3)
Incoming call
Input
1
-
Shield
-
11-17
-
Unassigned
-
23-25
-
Unassigned
-
Serial Port
(PLC/V.24/Modem)
Hardware Information