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Diagnostic LEDs
There are three LEDs located on the top of the EIM unit.
They can be useful in diagnosing proper operation as well
as troubleshooting if necessary. The EIM will indicate a valid
connection to the Ethernet in the following ways:
The Ethernet LED maintains a solid green color when
connected to a 100 Mbps Ethernet network
The Ethernet LED maintains a solid orange color when
connected to a 10 Mbps Ethernet network
The Ethernet LED will flash when Ethernet packets are
being transmitted or received
LED Name
LED Color
Red
Ready
Green
OFF
Orange
Green
Link
OFF
Orange
Green
Tx/Rx
OFF
Ethernet Interface Module
LED Function
Steady ON: Power is on and the EIM
is booting.
Blinking: Indicates an IP Conflict
Steady ON: Power is on and the EIM
is functioning normally
Power is OFF or power error
condition exists.
10 Mbps Ethernet Connection
100 Mbps Ethernet Connection
Ethernet cable is disconnected or has
a short.
Serial port is receiving data
Serial port is transmitting data
No data is being transmitted or
received through the serial port.

Reset Button

There is an onboard reset button located between the
power connection and Ethernet connection on the EIM.
Press the Reset button continuously for 5 seconds to
load factory defaults: Use a pointed object, such as a
straightened paper clip or toothpick, to press the reset
button.
This will cause the Ready LED to blink ON and OFF . The
factory defaults will be loaded once the Ready LED stops
blinking (after about 5 seconds). At this point, you should
release the reset button.
It is possible to limit the reset function for the first 60
seconds from initial power-up by accessing the Basic
Settings screen in the webserver configuration mode and
selecting the "Yes" option for Reset Button Protect.
Diagnostic LEDs
5

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