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All productsIndicators of Huawei GPON ONT have different meanings; and the light status represents whether the ONT work normally or not. For details, see the Quick Start delivered with an ONT.
| Table 1 Meaning of Indicators on an ONT | |||
| Indicator | Description | Status | Description |
| CATV | CATV port LED | Steady on | The CATV function is enabled and CATV signals are received. |
| Off | The CATV function is disabled or CATV signals are not received. | ||
| WPS | WPS LED | Steady on | The WPS function is enabled. |
| Blinking | A Wi-Fi terminal is accessing the system. | ||
| Off | The WPS function is disabled. | ||
| WLAN | WLAN LED | Steady on | The WLAN function is enabled. |
| Blinking | Data is being transmitted on the WLAN port. | ||
| Off | The WLAN function is disabled. | ||
| USB | USB port LED | Steady on | The USB port is connected and is working in the host mode, but no data is transmitted. |
| Blinks quickly (twice per second) | Data is being transmitted on the USB port. | ||
| Off | The USB port is not connected. | ||
| TEL1–TEL2 | Voice telephone port LED | Steady on | The ONT is registered with the softswitch but no service flows are transmitted. |
| Blinking | Service flows are transmitted. | ||
| Off | The ONTl is not powered on or fails to be registered to the softswitch. | ||
| LAN1–LAN4 | Ethernet port LED | Steady on | The Ethernet connection is in the normal state. |
| Blinking | Data is being transmitted on the Ethernet port. | ||
| Off | The Ethernet connection is not set up. | ||
| LOS | Connection LED | See Table 2. | |
| PON | Authentication LED | See Table 2. | |
| POWER | Power supply LED | Steady on | The ONT is powered on. |
| Off | The power supply is cut off. | ||
| Table 2 Meaning of PON and LOS Indicators | |||
| No. | Indicator Status | Description | |
| PON | LOS | ||
| 1 | Off | Off | The ONT is prohibited by the upper-layer device or blinks abnormally, contact the service provider for help. |
| 2 | Blinks twice a second | Blinks twice a second | |
| 3 | Blinks twice a second | Off | The ONT attempts to set up a connection with its upper-layer device. |
| 4 | Steady on | Off | A connection is set up between the PON terminal and its upper-layer device. |
| 5 | Off | Blinks once two seconds | The ONT is not connected to optical fibers or does not receive optical signals. |
| 6 | Blinks once two seconds | Blinks once two seconds | The hardware is faulty. |
If the Huawei ONT you used has some problem, firstly you can check the lights status, and check the problem according to above tables to do fault location. If still cannot check out the problem, you can contact supports@thunder-link.com.