Appendix E: Cable Connections; Network Ports; Twisted Pair Cables - NetComm NB5580 User Manual

Appendix E: Cable Connections

This cable information is provided for your reference only. Please ensure you only
connect the appropriate cable into the correct socket on either this product or your
computer.
If you are unsure about which cable to use or which socket to connect it to, please refer
to the hardware installation section in this manual. If you are still not sure about cable
connections, please contact a professional computer technician or NetComm for further
advice.
RJ-45 Network ports
All of the ethernet ports on the NP5580/W are 10/100 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 ethernet ports on the
NP5580 switch to allow for connection to any port of an ethernet adapter, ethernet
switch or hub.

Twisted pair cables

Figures 1 and 2 illustrate the use of straight-through and crossover twisted pair cables
along with the connector.
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RJ-45 Connector
Pin Assignment
1
2
3
6
4,5,7,8
Normal Assignment
Input Receive Data +
Input Receive Data -
Output Transmit Data +
Output Transmit Data -
Not used
Figure 1
RJ-45 plug
attached to cable
Figure 2
Rev.1 - YML686
NP5580/W User Guide