Port Status LED not lit for a 10BASE-T port that has a connection. There is a problem with this connection. Check that you are using a straight-through10BASE-T cable which is properly connected at both ends, and is not damaged. If the cable is connected to port 8, ensure that the Uplink/Normal switch is set to Normal (out). Also check that the equipment being connected to the hub is powered on and operating correctly. Refer to Figure 9 below to compare the wiring of a straight-through and a crossover cable.
Figure 9 Straight-through Cable/Crossover Cable
Normal | Pin | Pin | | Uplink | Normal | Pin | Pin | | Normal |
port | | port | port | | port |
Rx+ | | 1 | 1 | | Rx- | Rx+ | | 1 | 1 | | Rx+ |
| 2 | 2 | | | 2 | 2 | |
Rx- | | | Rx+ | Rx- | | | Rx- |
| 3 | 3 | | | 3 | 3 | |
Tx+ | | | Tx- | Tx+ | | | Tx+ |
| 4 | 4 | | | 4 | 4 | |
| | | | | | | |
| | 5 | 5 | | | | | 5 | 5 | | |
| | | | | | | |
Tx- | | 6 | 6 | | Tx+ | Tx- | | 6 | 6 | | Tx- |
| | | |
| 7 | 7 | | | 7 | 7 | |
| | | | | | | |
| | 8 | 8 | | | | | 8 | 8 | | |
| | | | | | | |
| | | | | | | | | | | |
| | | | | | | | | | | |
