Adtran NetVanta 3120 Normal Status Lights

Rear Panel
Light |
Status |
Description & Suggested Action (Likely Failures in Bold) |
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. | |
ETH1 | 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. | |
VPN | Unlit | VPN is down. (Takes 90 seconds to go dark after loss of Internet connectivity) |
Yellow (Flashing) | VPN is trying to connect. (20 second cycle then 2 second red error, if not sucessful, retry) | |
Red (Flashing) | VPN connection error. (see above) | |
Green (Solid) | VPN is up. (Takes 60 seconds to go green after Internet connectivity) | |
INET | Unlit | PPP or PPPoE is not connected, port has no IP address via DHCP or IP is static. |
Unlit | Comcast Modem with static IP or like: WAN Ethernet connection down. | |
Green (Solid) | PPP or PPPoE is connected or IP has an address via DHCP. | |
Green (Solid) | Comcast modem with static IP or like: WAN Ethernet connection up. | |
Green (Flashing) | WAN interface is attempting to obtain an IP address via DHCP. | |
SWITCH 1-4 | 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). |