Siemens eWON4002 - Manual (Page 16)

eWON4002™
Installation Guide
page 13 of 35
ver 2.04
5.4 Serial ports
The eWON4002™ is provided with 3 serial ports, 2 of which (port 1 and port 3) are configurable (RS485, RS422,
RS232), and one (port 2) is a full RS232 (with all control lines present).
5.4.1 Serial port #1
The configuration of the physical serial port 1 mode is done by a set of 4 dip switches that are located on the left face
from the unit. The settings of the switches are shown in the table below (note: please don’t forget that switch 1 is the
most right one on the dip switch panel that matches serial port 1: the dip switch panel stands at the bottom right from
the eWON®’s left face, just beside the serial port 1 connector, which stands at the bottom left from the eWON®’s
front face)
Figure 9: Serial port 1 connector and dip switch
Specification Value
Physical modes (configurable) RS232/RS485/RS422
Normal isolation
--- ISOLATED ---
Optocoupler 1kV
Pinout connector See label and appendix ( Relays output on page 30 )
Termination/polarization Selectable
Table 9: Serial port 1 specification
Serial port 1
Serial port 1
dip switch