Accton Technology FAST ETHERHUB-12S manual Verifying Port Status, Verifying System Operation

Fast EtherHub-12s User’s Guide

Verifying Port Status

Check each connection by viewing the port status indicators listed below. (For a more detailed description of these indicators, refer to Chapter 4.)

Link Indicates that the port has established a valid network connection.

Traffic Indicates traffic traversing the port.

Partition Indicates that the port has been isolated from the hub due to excessive errors.

If the Link status indicator is not functioning properly, or you experience any other difficulties in setting up the hub, refer to Appendix A.

Verifying System Operation

Verify that all attached devices have a valid connection. The hub monitors link status for each port. If any device is properly connected to the hub and transmitting a link beat signal, the Link indicator lights up for the corresponding port. If the Link indicator fails to light up when you connect a device to the hub, check the following items:

∙Be sure the twisted-pair cable is properly attached to the connected device and the hub. Verify that the RJ-45 plug snaps into place when attached.

∙See if the twisted-pair cable is functioning properly by using it for another port and attached device that already displays valid indications when connected to the network.

∙Check the length of the twisted-pair connection to be sure it does not exceed 100 meters. If you are using bit budget calculations to determine maximum cable lengths, then be sure you have not exceeded the maximum cable length calculated for any potential node pair.

2-6 Installing the System