ADTRAN NetVanta 3140
Normal Status Lights
                
                    | Light | STATUS | Description & Suggested Action | 
| STATUS (STAT) | Green (Flashing) | The unit is powering up. On power up the STAT LED flashes rapidly for five seconds. | 
Green (Solid) | The power is on and self-test passed. | Red (Solid) | The power is on, but the self-test failed or the boot mode (if applicable) code could not be booted. | | GIG 0/1 - GIG 0/3 | Unlit | The port is administratively disabled or does not have a link. | 
Green (Solid) | The port is enabled and the link is up. | Amber (Flashing) | The port has activity (transmit or receive) | Red (Solid) | The port is enabled but the link is down. // Check your ISP's equipment. | | USB | Unlit | The port is administratively disabled or does not have link. | 
Green (Solid) | The port is enabled and the link is up. | Amber (Flashing) | The port has activity (transmit or receive) | 
                
        For more information or to have your device listed please contact
            
            Infotel Systems
        
        The Story Behind "Status Lights"