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Serial Port
The serial port (COM2) on the PG 720 has the following pinout:
(RS-232/Mouse)
Figure 8-8 COM2 Serial Port (Connector)
1
2
3
4
5
6
7
8
9
USB Port
The pin assignment of the Universal Serial Bus port is as follows:
Table 8-4
The plug is a type A connector.
PG 720 PII Programming Device
C79000-G7076-C756-02
Pin
Designation
No.
DCD (M5)
Data carrier detect
RxD (D2)
Receive data
TxD (D1)
Transmit data
DTR (S1)
Data terminal ready
GND (E2)
Ground
DSR (M1)
Data set ready
RTS (S2)
Request to send
CTS (M2)
Clear to send
RI (M3)
Incoming call
Universal Serial Bus Port
Pin No.
1
4
4
2
3
2
2
3
4
1
Hardware Information
5
9
6
1
Description
Input/Output
Input
Input
Output
Output
–
Input
Output
Input
Input
Signal
name
VCC
Cable power
– Data
+ Data
Ground
Cable ground
Meaning
8-13
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