Serial Rs232 Db9 Ports; Serial Rs232/Rs485/Rs422 Db9 Ports - Siemens RUGGEDCOM RS400 Installation Manual

RUGGEDCOM RS400
Installation Guide
Section 4.4.1

Serial RS232 DB9 Ports

Serial RS232 DB9 ports offer a female Data Communications Equipment (DCE) interface. When communicating
with a Data Terminal Equipment (DTE) device, such as a PC, a straight-through serial cable (3 pin or 9 pin) is
required. When communicating with an another DCE device, such as another RUGGEDCOM RS400, the RX and TX
pins must be crossed-over using, for example, a NULL modem cable.
The following is the pin-out description for the RS232 DB9 ports:
Figure 17: RS232 DB9 Serial Console Port
Section 4.4.2

Serial RS232/RS485/RS422 DB9 Ports

The RUGGEDCOM RS400 can be equipped with serial RS232/RS485/RS422 DB9 ports. Each port can be set
individually through the ROS operating system to operate in RS232, RS485 or RS422 mode. For more information,
refer to the ROS User Guide for the RUGGEDCOM RS400.
The following is the pin-out description for the RS232/RS485/RS422 DB9 ports:
Figure 18: RS232/RS485/RS422 DB9 Serial Console Port
Serial RS232 DB9 Ports
5 1
9 6
5 1
9 6
Pin Name
1 Reserved (Do Not Connect)
2 TX
3 RX
4 Reserved (Do Not Connect)
5 GND
6 Reserved (Do Not Connect)
7 Reserved (Do Not Connect)
8 Reserved (Do Not Connect)
9 Reserved (Do Not Connect)
a
Pin
RS232 Mode
1 CD (No
Connection)
2 TX
3 RX
4 DTR (No
Connection)
5 Common (Isolated Ground)
6 DSR (No
Connection)
c
7 CTS
c
8 RTS
Chapter 4
Communication Ports
Description
Transmit Data
Receive Data
Common Ground
Name
RS485 Mode RS422 Mode
— —
TX/RX+ TX+
— RX+
— —
b
— RX-
TX/RX- TX-
— —
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