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Connecting Port
Connecting Device
on the Hub
Model EN104 hub:
Ports 1–3
PC, server, or router
Ports 1–3
Hub or switch
Model EN108 hub:
Ports 1–7
PC, server, or router
Ports 1–7
Hub or switch
Model EN116 hub:
Ports 1–15
PC, server, or router
Ports 1–15
Hub or switch
Set the Normal/Uplink Push Button
If you are connecting to port 4 on the Model EN104 hub, port 8 on the Model EN108 hub, or port
16 on the Model EN116 hub, use the following table. Determine the type of cable to use and how
to set the Normal/Uplink push button.
Connecting Port
Connecting Device
Port 4, port 8, or port 16
PC, server, or router
set to Normal
Port 4, port 8, or port 16
Hub or switch
set to Uplink
Cascade the Hub
The following illustration shows cascading hubs together in a hierarchical star through
the 10BASE-T ports and indicates the setting of the Normal/Uplink push button on each hub.
Pwr
Col
Model EN108 hub
EN108
TP
10 BASE-T HUB
Pwr
Col
1
2
3
4
5
6
Note:
Ethernet specifications limit the number of hubs with twisted pair links in any
communication path to five, as shown in the example. When PC "A" communicates
with PC "B," the communication path goes from hub 4 to hub 2, to hub 1, to hub 3,
and then to hub 5 (or five paths).
Model EN104/EN108/EN116 Ethernet Hub Installation Guide
Cable Used
Straight-through cable
Crossover cable
Straight-through cable
Crossover cable
Straight-through cable
Crossover cable
Cable Used
Straight-through cable
Straight-through cable
Model EN116 hub
10 BASE-T HUB
EN116
1
2
3
4
5
6
7
8
1
2
3
4
5
6
10 BASE-T HUB
Pwr
Uplink
Col
7
8
1
2
Model EN104 hub
Uplink
A
LINK
Rx
Normal
7
8
Model EN108 hub
EN108
TP
Uplink
3
4
5
6
7
8
Model EN104 hub
Uplink
B
8735FA
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