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 4, 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 6 below to compare the wiring of a straight-through and a crossover cable.
Figure 6 Straight-through Cable/Crossover Cable
Straight-through
TxD+ 1 
1 TxD+
TxD- 2 
2 TxD-
RxD+ 3 
3 RxD+
RxD- 6 
6 RxD-
Pins 4, 5, 7 and 8 are not used
| | Crossover | |
TxD+ | 1 | 1 | TxD+ |
TxD- | 2 | 2 | TxD- |
RxD+ | 3 | 3 | RxD+ |
RxD- | 6 | 6 | RxD- |
Pins 4, 5, 7 and 8 are not used
