3Com IntelliJack NJ225 User Manual

3Com IntelliJack NJ225 User Manual Manual pdf 75 page image

71A Troubleshooting the NJ225If you encounter problems with the IntelliJack: Verify the IntelliJack is receiving power by viewing the Power LED (it should be on). Ifthe Power LED is not on, make sure that: If using power over Ethernet, the other end of the network cable is pluggedinto a switch on the network that has Power Over Ethernet integrated into it,or one that feeds into an external midspan power supply that supports PowerOver Ethernet. The local power supply is plugged into the IntelliJack and into a workingelectrical outlet, if your network does not support Power Over Ethernet. Verify the IntelliJack is connected to the network properly by viewing the Link LED (itshould be on). If the Link LED is not on, make sure the network cable: Is terminated properly. Refer to the connector manufacturer’s instructions forterminating the cable. Be sure to test the connector and verify it is working. Has a valid connection to the network. Adheres to proper length and cabling specifications for your network. The IntelliJack is configured for manual MDI. Be sure to use a straight-through cable.If you want to use a cross-connect cable, you must change settings in theConfiguration Manager software.Troubleshooting MatrixEvent/Message Description SolutionPower LED is not on IntelliJack is not receivingpower Ensure power supply is properlyconnected. For power over Ethernet, make surethat the cable is connected to boththe LAN port on the back of theIntelliJack and to the workgroupswitch. Make sure the upstream switch isconfigured and activeLink LED is not on IntelliJack has no connectionto the network Make sure network cable is properlyterminated. Make sure the IntelliJack is connectedto the network. Make sure the cable is plugged intothe workgroup switch. Make sure the upstream switch isconfigured and active