
EOTec 2104 User Manual
EOTec 2104 Ring Switch Hardware
LED
Function
Description
Backplane
Indicates status of the Ethernet backplane port connections.
Solid
Green
ON-connected – A proper Ethernet connection (Link) exists between
the port and another Ethernet device, but no communications activity
is detected.
Blinking
Green
BLINK-activity – A proper Ethernet connection (Link) exists between
the port and another Ethernet device, and there is communications
activity.
BP
OFF
Completely
A proper Ethernet connection (Link) does not exist between the port
and another Ethernet device.
Ring
Status
Indicates the status of your local ring connections.
Solid
Green
GRN
-normal – Its associated ring port is active and has a good link
status.
Solid Red
When both A1 and A2 are solid
red
, both ring ports have lost
communication and the ring switch will not be able to communicate
with other switches in the ring.
Blinking
Red
BLINK
RED
-ring port failure – A break has been discovered for its
associated ring port. The break is at this location. Diagnostically
speaking; in simple rings, the segment with the problem will be
between the two switches with their ring port LEDs in the blink state.
Also, you can ascertain the general location of where the segment
error has occurred with a HMI, a master controller, or some other
MODBUS Master through MODBUS/UDP polling.
A1, A2
OFF
Completely
The switch has not been configured for any rings.
Copper
Ports
Each RJ45 copper port has Activity and Link LEDs.
Green LED
Off: No link detected.
On: Link detected but no activity.
Flash: Activity at either 10 Mbps or 100 Mbps.
ACT/LNK
Yellow
LED
Off: Only 10 Mbps (10BaseT) connection is detected or no link
detected.
On: 100 Mbps (100BaseTX) connection is detected.
11