Allied Telesis AT-FH708E Installation Guide download pdf (Page 15)

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.

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Allied Telesis AT-FH708E Installation Guide Page 15