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Installation Guide for the Model EN516 Ethernet Hub
LED Indicators
There are six LEDs on the front panel of the hub and two on each port connector that allow you to
identify:
•
Status of the hub AC power supply
•
Operational status of the hub
•
Collision occurrence on an Ethernet segment indicating activity level
•
Partitioning of a port as a result of excessive collision occurrence
•
Data utilization of the Ethernet segment in a standalone hub or a stack of hubs
•
Link and receive activity status for all ports in the hub
Table 2-1 describes each LED on the front panel of the hub.
Table 2-1.
LED descriptions
Label
Power
BNC Rx
AUI Rx
Collision
BNC Partition
AUI Partition
Link/Rx (located on
top left corner of each
RJ-45 port)
Partition (located on
top right corner of each
RJ-45 port)
2-2
Color
Activity
Green
On
Green
Blinking
Green
Blinking
Yellow
Blinking
Yellow
On
Yellow
On
Green
On
Blinking
Yellow
On
Description
Power is supplied to the hub.
There is incoming data on the BNC port.
There is incoming data on the AUI port.
There is data collision on the network.
Note that occasional collisions are normal.
The BNC port is being partitioned because
of excessive collisions, or when the BNC
port is not connected.
The AUI port is being partitioned because of
excessive collisions.
The link between this port and the other
connecting port is good.
There is incoming data on the port.
The port is being partitioned because of
excessive collisions.
Physical Description
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