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4.2

Serial Terminal

The RUGGEDCOM RMC30 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:

Figure 4.3

4.2.1

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).

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:

•

The RS232 port can be wired to standard DB9 console port.

RUGGEDCOM RMC30

Installation Manual, 04/2021, C79000-G8976-1008-10

Serial Terminal Pin

Configuration

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

Communication Ports

Name

Mode

RS232

COM

-Rx

RS422

RS485

+Rx

RS422

RS485

-Tx

RS422

+Tx

RS422

4.2 Serial Terminal

Description

Receive data

Transmit data

Shared common

Receive data-

Transmit/

Receive data-

Receive data+

Transmit/

Receive data+

Transmit data-

Transmit data+