RMS2-AI-IA3 Analog Variables Acquisition Module – User’s Manual
Exemys
www.exemys.com
Rev. 2
8
2.2.2
2.2.2
2.2.2
2.2.2
RS232
RS232
RS232
RS232 serial port
serial port
serial port
serial port wiring
wiring
wiring
wiring
To connect the device RS232 serial port to PC serial port or any other serial device, it must be
connected as can be shown in the following figure. You should consider RMS2-AI-IA3 is a
DTE device, which means it must cross wire with those of the PC.
2.2.3
2.2.3
2.2.3
2.2.3
RS
RS
RS
RS485
485
485
485 serial port connection
serial port connection
serial port connection
serial port connection
To connect the device RS485 serial port to PC serial port or any other serial device, it must be
connected as can be shown in the following figure.
2.3
2.3
2.3
2.3
LED
LED
LED
LEDs Indicators
s Indicators
s Indicators
s Indicators
RMS2-AI-IA3has two LEDsindicators.Power LED indicates that device is energized, whereas
Data LED shows activity of RS232 / RS485 port.
Power
Data
Description
Switched on
-
Energized device
-
Flashes turning off
Data Transmission or reception
Flashes alternately with
the Data LED
Flashes alternately with the
Power LED
Critical failure. Contact technical
support.