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Introduction 43
SmartNode 4120 User Manual C • Cabling
Introduction
This section provides information on the cables used to connect the SN4120 and the interface cards to the
existing network infrastructure and to third party products.
Ethernet
Ethernet devices (10Base-T/100Base-T) are connected to the SN4120 over a cable with RJ-45 plugs. All Ether-
net ports on the SN4120 are Auto-MDX and use any straight or crossover cable to connect to hubs, switches,
PCs or other devices.
Figure 9. Typical Ethernet straight-through cable diagram
Hub
RJ-45, male
1
2
3
6
RJ-45, male
1
2
3
6
Straight-through cable
Note: Other pins are not used.