9
Chapter 3
Troubleshooting
This chapter describes the procedures to test and troubleshoot the hub.
Connectivity Testing
In the following procedure, you will test each port for a valid connection
and to confirm the correct operation of the network.
1.
Start with Ports 1 and 2. Connect these two ports of a single hub to two
nodes or workstations and turn on the hub’s power supply.
2.
Make sure the Link/Activity and other LEDs of both hub ports are lit.
3.
After confirming that Port 1 and Port 2 are operational, reconnect one
of the nodes/workstations to another port, then repeat this
communications test with the hub’s remaining ports. Continue to
verify the connection in each port by checking the Link/Activity and
other activity LEDs.
Note
When testing the 100 Mbps ports with the MDI buttons connected to a
workstation, set the button to the To PC position.
If the port is auto-negotiable, wait approximately 1-3 seconds for
the process to complete after power-on or after the cables are
reconnected.
If the port has a manual configuration switch, use the DIP switch
to select the duplex mode. Reset the unit by unplugging the power
and then apply power to the hub again.
4.
When cascading hubs, set the MDI button to the To HUB position.