Chapter 1: Overview
Table 4. LEDs for the 
| LED | State | Description | |
| 
 | 
 | 
 | |
| 
 | 
 | 
 | |
| Mode - 100 | OFF | Indicates that the port is operating at 10 | |
| 
 | Mbps. | ||
| 
 | 
 | 
 | |
| 
 | Green | Indicates that the port is operating at 100 | |
| 
 | 
 | Mbps. | |
| 
 | 
 | 
 | |
| Mode - SPD | OFF | Indicates that the port is operating at 10 | |
| 
 | Mbps. | ||
| and | 
 | 
 | |
| Green | Indicates that the port is operating at 100 | ||
| 
 | Mbps. | ||
| 
 | 
 | ||
| 
 | 
 | 
 | |
| Mode - FULL | OFF | Indicates that the port is operating in half- | |
| 
 | duplex mode. | ||
| 
 | 
 | 
 | |
| 
 | Green | Indicates that the port is operating in full- | |
| 
 | 
 | duplex mode. | |
| 
 | 
 | 
 | |
| MODE - FDX | OFF | Indicates that the port is operating in half- | |
| 
 | duplex mode. | ||
| and | 
 | 
 | |
| Green | Indicates that the port is operating in full- | ||
| 
 | duplex mode. | ||
| 
 | 
 | ||
| 
 | 
 | 
 | |
| Mode - ACT | OFF | Indicates that there is no activity on the port. | |
| 
 | 
 | 
 | |
| 
 | Flashing | Indicates that the port is transmitting and/or | |
| 
 | Green | receiving data packets. | |
| 
 | 
 | 
 | 
Table 5 describes the LEDs for the 
Table 5. LEDs for Ports 49R and 50R on the 
Switches
| LED | State | Description | 
| 
 | 
 | 
 | 
| 
 | 
 | 
 | 
| LINK | OFF | Indicates that there is no link between the | 
| 
 | 
 | port and the end node. | 
| 
 | 
 | 
 | 
| 
 | Green | Indicates a valid link has been established | 
| 
 | 
 | between the port and the end node. | 
| 
 | 
 | 
 | 
| Mode - COL | OFF | Indicates that no data collisions are occurring | 
| 
 | 
 | on the port. | 
| 
 | 
 | 
 | 
| 
 | Flashing | Indicates that data collisions are occurring on | 
| 
 | Green | the port. | 
| 
 | 
 | 
 | 
32
