Model EN104/EN108/EN116 Ethernet Hub Installation Guide
AUI Connector
The AUI connector for the hub connects the hub through an external transceiver to other devices.
An inter-repeater fiber link using a 10BASE-F transceiver is an example of such an application.
BNC Connector
The BNC connector for the hub supports 10 Mbps data transmission and connects the hub to other
devices.
RJ-45 Connector
Pin Assignment
Normal Assignment:
Ports 1–3 on the
Model EN104 hub
Ports 1–7 on the
Model EN108 hub
Ports 1–15 on the
Model EN116 hub
Uplink Assignment:
Port 4 on the
Model EN104 hub
Port 8 on the
Model EN108 hub
Port 16 on the
Model EN116 hub
1
Input Receive Data +
Output Transmit Data +
2
Input Receive Data -
Output Transmit Data -
3
Output Transmit Data +
Input Receive Data +
6
Output Transmit Data -
Input Receive Data -
4, 5, 7, 8
Not used
Not used
AUI Connector Pin Assignment
Signal
1, 4, 11, 14, 15
Ground
2
CI-A
3
DO-A
5
DI-A
6
+ 12 V DC return
7, 8
Not used
9
CI-B
10
DO-B
12
DI-B
13
+ 12 V DC (500 mA maximum)
8148EA
1
8
15
9
AUI connector
8149EA
1
2
Center conductor
Ground shield
BNC connector
Summary of Contents for EN104 - Hub - EN
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