Ultra VDSL2 Network Termination Unit Status Lights
The article will explain the status lights found on the Network Termination Unit (NTU) used on our high-speed Ultra VDSL2 plans.
Choose your NTU:
| Picture | NTU |
|---|---|
 |
ZyXel GM4100-B0 G.Fast NTU |
 |
Adtran® 422G G.Fast NTU |
ZyXel G.Fast NTU Status lights
| Light | States and meaning |
|---|---|
| Power | Off = No power. Green = Your NTU has power. Flashing green = Your NTU is booting up. Red = A system failure is detected. Please call us on 13 22 58. Flashing red = A firmware upgrade is in progress. |
| G.Fast | Off = No power. Green = Your NTU is operating normally. Flashing green = Your NTU is booting up. Slow blinking green = There may be a connection issue. Make sure cables are plugged in securely, and power cycle your NTU. Please call us on 13 22 58 if the light stays slow blinking. You must use the supplied 1-metre phone cable - longer cables can cause connections issues. |
| LAN 1 & LAN 2 | Off = There may be a connection issue. Make sure cables are plugged in securely, and power cycle your NTU. Replace the Ethernet cable if it has visible damage. Please call us on 13 22 58 if the light stays off. Green = Successful network connection. Flashing green = Data transfer. |
Adtran® 422G G.Fast NTU Status lights
| Light | States and meaning |
|---|---|
| Power | Off = No power. Green = Your NTU has power. |
| G.Fast | Off = No power. Green = Your NTU is operating normally. Flashing green = There may be a connection issue. Make sure cables are plugged in securely, and power cycle your NTU. Please call us on 13 22 58 if the light stays flashing. You must use the supplied 1-metre phone cable - longer cables can cause connections issues. |
| LAN | Off = There may be a connection issue. Make sure cables are plugged in securely, and power cycle your NTU. Replace the Ethernet cable if it has visible damage. Please call us on 13 22 58 if the light stays off. Green = Successful network connection. Flashing green = Data transfer. |