RME2-AI-IA3 Analog Variables Acquisition Module – User’s Manual
Exemys
www.exemys.com
Rev. 1
9
2.4.
Serial Port wirings
2.4.1.
RS232 serial port 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 image. You should consider
RME2-AI-IA3 is a DTE device, which means it must cross wire with those of the PC.
2.5.
LEDs indicators
RME2-AI-IA3has three LEDs, two of them on the Ethernet connector, one green and one
yellow. The yellow operation shows the connection to the network, while the green one
indicates the status of incoming and outgoing TCP connections. Power LED indicates that
device is energized.
Green
Yellow
Description
-
Continuously on
Looking for a DHCP server.
-
½
second on and
½
second off
Waiting serial console.
-
90% of a second off and the
remaining time on
Device has an IP address and a connection
bearer link. This is the normal operating state
-
10% of a second off and the
remaining time on
It has no IP address and cannot find the DHCP
server. It will search the DHCP server for in 60
seconds.
-
Flashing very fast
Ethernet cable disconnected
On
-
TCP connection set.
Flashing off
-
Data transmission or reception.
Flashing alternatively
with the Yellow LED
Flashing alternately with the
Green LED
Critical Failure. Contact technical support
