NetComm NP2500 manual RJ-45 Network Ports, Straight and crossover cable configuration

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APPENDIX B Cable Information

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 profes- sional computer technician or NetComm for further advice.

RJ-45 Network Ports

RJ-45 Network Ports can connect any networking devices that use a standard LAN interface, such as a Hub/ Switch Hub or Router. Use unshielded twisted-pair (UTP) or shield twisted-pair (STP) cable to connect the networking device to the RJ-45 Ethernet port. Depending on the type of connection, 10Mbps or 100Mbps, use the following Ethernet cable, as prescribed.

10Mbps:

Use EIA/TIA-568-100-Category 3, 4 or 5 cable.

100Mbps:

Use EIA/TIA-568-100-Category 5 cable.

Note:

To prevent loss of signal, make sure that the length of any twisted-pair connection does

 

not exceed 100 metres.

 

 

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

Figure 1

RJ-45 plug attached to cable

Figure 2

Straight and crossover cable configuration

There are two types of the wiring: Straight-Through Cables and Crossover Cables. Category 5 UTP/STP cable has eight wires inside the sheath. The wires form four pairs. Straight-Through Cables has same pinouts at both ends while Crossover Cables has a different pin arrangement at each end.

NP2500 24-Port 10/100 PoE + 2-Port 10/100/1000 WebSMART Switch User Guide

41

YML842 Rev1

 

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Contents Page Contents RJ-45 Network Ports Terms/Usage About this GuidePurpose Gigabit Ethernet Technology IntroductionFast Ethernet Technology Vlan Virtual Local Area Network Switching TechnologyPower over Ethernet PoE Features Unpacking Unpacking and InstallationInstallation Installing the Switch on a Rack Installing the Switch on a DesktopMount the Switch in the rack Connecting Network Cable Connecting Network CableAC Power Front Panel Identifying External ComponentsRear Panel Rear panel of the SwitchFast Ethernet PoE Port Status LEDs Port 1 ~ Understanding LED IndicatorsSystem LEDs Gigabit Ethernet Port Status LEDs Installing the Web Management Utility ConfigurationWeb Management Utility Discovery ListView Trap Monitor ListConfiguration Setting Device SettingAdd Item Delete ItemFirmware Upgrade Password ChangeWeb Access Login Configuring the SwitchSetup menu Setup MenuSetup menu Configuring Setup SettingPort Settings Flow Control Auto, and Disable-for speed or port disable selectionsManagement QoSVlan Group Settings Vlan Settings Virtual Local Area NetworkTrunk Settings Trunk SettingRX receive mode Mirror SettingForward it to the sniffer port Sniffer portSelected port PoE SettingPOE Port Status Power limit Select to enable or disable the PoE functionPOE System Setting CurrentSystem Status Device StatusStatistic StatisticServer System SettingAddress of the manager where the trap is to be sent Trap SettingFrom where the IP to be login Abnormal* Transmit ErrorFunction to change the password Set PasswordBackup Setting Logout Reset SettingGeneral Power over EthernetFCC Warning PerformanceCE Mark Warning Vcci WarningYML842 Rev1 Straight and crossover cable configuration RJ-45 Network PortsCross-Over Cabling Straight-Through CablingCustomer Information Contact InformationCopyright Information Product Warranty YML842 Rev1
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