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Rev.1 - YML671 www.netcomm.com.au
NP3005 - 5 Port Gigabit Switch Page 9
RJ-45 Network ports
All of the ports on the NP3005 are 10/100/1000 Mbps capable auto-sensing Ethernet ports.
Each port supports only unshielded twisted pair (UTP) cable using an 8-pin RJ-45 plug. The
Auto-uplink feature senses the connection of uplink (MDI-II) wiring using a straight-through
twisted pair cable to any of the 5 ports on the NP3005 switch to allow for connection to any
port of an addition switch or hub.
RJ-45 plug
attached to cable
Figure 3
Twisted pair cables
Figures 4 and 5 illustrate the use of straight-through and crossover twisted pair cables along with
the connector.
Figure 4
RJ-45 Connector
Pin Assignment Normal Assignment
1 Input Receive Data +
2 Input Receive Data -
3 Output Transmit Data +
6 Output Transmit Data -
4,5,7,8 Not used