Siemens 620 用户手册
Hardware Information
7-11
SIMATIC Box PC 620 Manual
A5E00131465-01
Gender Changer for COM1
You can convert the COM1/V24 / AG port of the SIMATIC PC family into the usual
25 pin male connector by means of the enclosed gender changer (25 pin / 25 pin).
For this, you only have to plug the gender changer onto the COM1 socket and
secure it with the two hexagon head screws.
25 pin male connector by means of the enclosed gender changer (25 pin / 25 pin).
For this, you only have to plug the gender changer onto the COM1 socket and
secure it with the two hexagon head screws.
The V24 and TTY interfaces for COM1 can be alternately used. The factory set
default value is V24 operation. Switching from V24 to TTY operation is described in
Section 5.1.2.
default value is V24 operation. Switching from V24 to TTY operation is described in
Section 5.1.2.
Serial Port COM2 (V24/Mouse)
The serial port (COM 2) on the Box PC has the following pinout:
1
5
6
9
Figure 7-2 Serial Port COM 2 (Connector)
Pin No.
Designation
Description
Input / Output
1
DCD (M5)
Receiving signal level
carrier
Input
2
RxD (D2)
Received data
Input
3
TxD (D1)
Transmitted data
Output
4
DTR (S1)
Terminal ready
Output
5
GND (E2)
Functional ground
(reference potential)
-
6
DSR (M1)
Readiness for operation
Input
7
RTS (S2)
Switch on transmitter
Output
8
CTS (M2)
Ready to transmit status
Input
9
RI (M3)
Incoming call
Input