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6.3. Link/Activity (L/A) LEDs
The encoder provides two Duo LEDs to indicate the status of the Ethernet ports. The following table shows
the different possible states of the link/activity LEDs.
LED
Color
Status
Description
Link
(Port 1 and 2)
Green
On
The device is linked to
Ethernet.
Green
Off
The device has no link
to Ethernet.
Activity
(Port 1 and 2)
Red
Flickering
(load-dependent)
The device
sends/receives
Ethernet frames.
Red
Off
The device does not
send/receive Ethernet
frames.
If the device is linked to Ethernet and sends/receives Ethernet frames the related L/A LED will give a visual
impression of a mix of the colors green and red.