Assignment Of The Com 1 Port, X10; Gender Changer For Com1 - Siemens SIMATIC RI 45 PIII Series Manual

Motherboard
2.7.6

Assignment of the COM 1 Port, X10

Pin No. Description
1 Shield
2 Transfer data
(TxD/D1)
3 Receive data
(RxD/D2)
4 Request to send
(RTS/S2)
5 Clear to send
(CTS/M2)
6 Data set ready
(DSR/M1)
7 Functional ground
(GND/E2)
8
Data carrier detect
(DCD/M5)
9 +TTY Receive data
(RxD)
10 -TTY Receive data
11 unassigned
12 unassigned
13 unassigned
2.7.7

Gender Changer for COM1

With the enclosed gender changer (25-pin plug/25-pin plug) you can ), you
can convert the COM1/RS232/programming device port for the SIMATIC PC
family device to the standard 25-pin plug connector.
All you have to do is insert the gender changer into the COM1 socket and
screw tight with the two hexagonal screws.
Pin-No. Meaning
1 Shield
2 Send data (TxD/D1)
3 Receive data (RxD/D2)
4 Switch on sender (RTS/S2)
5 Sender ready (CTS/M2)
6 Data set ready (DSR/M5)
7 Functional ground (GND/E2)
8 Receiver signal carrier (DCD/M5)
9 TTY_RXD +
10 TTY_RXD -
11 Unassigned
12 Unassigned
13
Unassigned.
2-14
Direction Pin No.
Ground 14
Output 15
16
Output 17
Input 18
Input 19
Ground 20
Input 21
Input 22
Input 23
(RxD)
24
25
Housing
Pin-No.
14
15
16
17
18
19
20
21
22
23
24
25
Description
unassigned
unassigned
unassigned
unassigned
+TTY transfer data
(TxD)
Current source, isolated
Data terminal ready
(DTR/S1)
-TTY transfer data
(TxD)
Incoming call (RI/M3)
unassigned
unassigned
unassigned
Ground
Meaning
Unassigned
Unassigned
Unassigned
Unassigned
TTY_TXD +
+ 12 V
End device ready (DTR/S1)
TTY_TXD -
Incoming call (R1/M3)
Unassigned
Unassigned
Unassigned
RI 45 PIII, Manual
C79000-G7076-C817-01
Direction
Output
positive
potential
Output
Output
Input