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Communication Ports
3.2.1 RS232 Data Ports
Note
The RS232 port is intended for point-to-point applications only.
In adherence to the EIA/TIA guidelines for RS232 communications, the following is
recommended by Siemens:
• Always use shielded cabling to minimize the effects of ambient electrical noise
• Although greater distances are possible, limit the cable length to 15 m (49 ft) or
less for more reliable communications
• Use a baud rate of 120 kbps
The RS232 port can be wired to standard DB9 console port.
5
6
9
1
1
2
1
Serial Terminal
2
DB9 Console Port
Figure 3.4
RS232 Port to Console Port Pin Configuration
DB9 Pin
Name
Description
1
Reserved (Do Not Connect)
2
RD
Receive Data
3
TD
Transmit Data
4
Reserved (Do Not Connect)
5
SGND
Signal Ground
6
Reserved (Do Not Connect)
7
Reserved (Do Not Connect)
8
Reserved (Do Not Connect)
9
Reserved (Do Not Connect)
RUGGEDCOM RMC20
Installation Manual, 04/2021, C79000-G8976-1007-10
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