Siemens SIMATIC MV320 Operating Instructions Manual page 23

RS -232 cable
Example with connector assignments:
Figure 4-1
Table 4- 2
Connector
A
1
4
5
6
7
10
Housing
Description of the connector assignment of the reader (Page 24).
SIMATIC MV320 / SIMATIC MV325
Operating Instructions, 08/2015, C79000-G8976-C352-03
RS-232 cable with pin assignment
Connector table
Designation Wire Color
VIN 24 Red
AWG
TX 28 Brown
AWG
RTS 28 Orange
AWG
RX 28 Yellow
AWG
CTS 28 Green
AWG
GND 24 Black
AWG
- Shield
Connecting (SIMATIC MV320)
4.2 Connector assignment USB and RS-232 cable
Connector Wire
B
9 24 AWG
2
8
3
7
5 24 AWG
Shield
Color Connector
C
Red PIN
Black RING
23