# Indicator Lights

The Intel® PRO/100+ adapter, PRO/100 S adapter, and PRO/100 VE and VM Desktop Adapters and Network Connections have the following indicator lights:

| Label | Indication | Meaning
ACT/LNK | On | The adapter and switch are receiving power; the cable connection between the switch and adapter is good.
| Off | The adapter and switch are not receiving power, or you have a driver configuration problem.
| Flashing | The adapter is sending or receiving network data. The frequency of the flashes varies with the amount of network traffic.
100TX | On | Operating at 100 Mbps.
| Off | Operating at 10 Mbps.

The PRO/100+ Dual Port Server adapter (with three LEDs per port) has the following indicator lights:

| Label | Indication | Meaning
LNK | On | The adapter and switch are receiving power; the cable connection between the switch and adapter is good.
| Off | The adapter and switch are not receiving power; the cable connection between the switch and adapter is faulty; or you have a driver configuration problem.
ACT | On or flashing | The adapter is sending or receiving network data. The frequency of the flashes varies with the amount of network traffic.
| Off | The adapter is not sending or receiving network data.
100 | On | Operating at 100 Mbps.
| Off | Operating at 10 Mbps.

The Intel® PRO/100 S Dual Port Server adapter (with 64 bit PCI Connector) has the following indicator lights:

| Label | Indication | Meaning
ACT/LNK | On | The adapter and switch are receiving power; the cable connection between the switch and adapter is good. NOTE: if only one port appears to be operating, go into the Network control panel (Windows) or a configuration file for other operating system, and check the status of the second port.
| Off | The adapter and switch are not receiving power, or you have a driver configuration problem.
| Flashing | The adapter is sending or receiving network data. The frequency of the flashes varies with the amount of network traffic.
100TX | On | Operating at 100 Mbps.
| Off | Operating at 10 Mbps.

`Last modified on 10/12/09 9:04p Revision 4`