Siemens RUGGEDCOM RMC20 - 3.2 Serial Terminal

Communication Ports
3.2Serial Terminal
Available Ports
21
1
Tx Connector
2
Rx Connector
Figure3.2 ST Port
Specifications
For specifications on the available fiber optic ports, refer to "Fiber Optic Port
Specifications (Page 23)".
3.2 Serial Terminal
The RUGGEDCOM RMC20 is equipped with a seven-terminal Phoenix-style connector.
This connector can accommodate one RS232 connection, and one RS485/422
connection. The following is the pin-out for the serial terminal:
7
1
Figure3.3 Serial Terminal Pin
Configuration

Pin Name Mode Description
1 Rx RS232 Receive data
2 Tx RS232 Transmit data
3 COM Shared common
RS422 Receive data-4 -Rx
RS485 Transmit/
Receive data-
RS422 Receive data+5 +Rx
RS485 Transmit/
Receive data+
6 -Tx RS422 Transmit data-
7 +Tx RS422 Transmit data+
3.2.1 RS232 Data Ports
The serial terminal includes a single EIA/TIA RS232 compliant port, consisting of three
terminals: Transmit (Tx), Receive (Rx) and Common (COM).
18
RUGGEDCOM RMC20
Installation Manual, 04/2021, C79000-G8976-1007-10