Enterasys Networks 24-Port Uživatelský manuál stáhnout pdf (Strana 22)

Troubleshooting

3-2 Troubleshooting

The Mid-Span Power Hub operates and the

load device works, but there is no data link.

Verify that the Detect/Power Forwarding (blue)

LED for the port is “on.” Verify that the Mid-Span

Power Hub is connected to the Ethernet

network with a good connection.

Verify that the Ethernet cable is Category 5, 5e,

or 6 and is less than 100 meters in length from

the Ethernet source to the load.

Try to connect a different device over the same

port. If it works and a link is established, there is

probably a faulty data link in the load.

Try to reconnect the load into a different output

port (remember to move the input port

accordingly). If it works, there is probably a

faulty output or input port in the Mid-Span

Power Hub or a bad RJ45 connection.

The Mid-Span Power Hub operates, but one of

the ports is powering a load without turning the

“Power” LED on.

Move the load into a different output port. If the

LED turns “on,” there is a fault in the previous

output port.

Table 3-1 Troubleshooting Checklist (continued)

Problem Recommended Action

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Enterasys Networks 24-Port Uživatelský manuál Strana 22