Filter
Top Products
Model EN516/EN524 Ethernet Hub Installation Guide
LEDs
The table below describes the activity of the LEDs.
Normal/Uplink Push Button
The Normal/Uplink push button allows you to select Normal (MDI-X) for direct PC connection.
The push button also allows you to select Uplink (MDI) wiring for connection to a hub or a switch
for port 16 on the Model EN516 hub and for port 24 on the Model EN524 hub. This uplink
configuration eliminates the need to use a crossover cable. Ports 1 through 15 on the Model
EN516 hub and ports 1 through 23 on the Model EN524 hub are permanently configured for
normal wiring for connection to a PC.
Rear Panel
The rear panel of each hub has two ports: the AUI port and the BNC port. You can use the AUI
port with the appropriate transceiver to connect the hub to a backbone network using thin coaxial
cable, thick coaxial cable, fiber optic cable, or 10BASE-T wiring. You can use the BNC port to
connect to a backbone network or other PCs using thin coaxial cable. The rear panel also includes
an AC power receptacle. The hub accepts between 100 and 240 V AC, 50/60 Hz.
Label Color Activity Description
Power Green On Power is supplied to the hub.
Collision Amber Blinking Data collision is occurring on the network. Note that
occasional collisions are normal.
BNC Rx Green Blinking There is incoming data on the BNC port.
Partition
(for BNC)
Amber On The BNC port is partitioned because of excessive
collisions or the BNC port is not connected.
AUI Rx Green Blinking There is incoming data on the AUI port.
Partition
(for AUI)
Amber On The AUI port is partitioned because of excessive
collisions or because the signal quality error (SQE) test
function is not disabled on the transceiver.
Link/Rx
(located on the top left
corner of each vista
10BASE-T port)
Green On
Blinking
The link between this port and the connected device is
good.
There is incoming data on the port.
Partition
(located on the top
right corner of each
vista 10BASE-T port)
Amber On The port is partitioned because of excessive collisions.
8143FA
AUI
BNC
100-240 VAC 50-60 Hz 0.2A
AUI port
BNC port Power receptacle