Brand: ZTE
Category: Network Router
Document Type: Manual
Language: EN
Manual for ZXHN F680
Uploaded: April 20, 2026, 7:58 p.m.
Manual Publish Date: 2015-10-25
Warranty Information
None
- Safety Precautions: Read all safety cautions before use. Use only included accessories. Ensure correct power supply voltage. Keep power plug clean and dry. Disconnect cables during lightning storms. Power off when not in use. Do not open device covers. Avoid staring at optical interface. Power off and contact service provider for abnormal conditions.
- Environment Requirements: Ensure proper ventilation, avoid direct sunlight, and do not spill liquid. Do not place objects on the device. Keep away from heat and water sources. Avoid strong magnetic or electric fields.
- Cleaning Requirements: Power off and unplug all cables before cleaning. Use a soft, dry cloth; do not use liquid or spray.
- Environment Protection: Dispose of the device and battery properly according to local regulations.
- Package Content: Verify the package includes the ZXHN F680 unit, AC-DC power supply adapter, and RJ-45 Ethernet cable. Contact service provider if items are missing or damaged.
- Indicators: Understand the status of indicators (Power, PON, LOS, Internet, Phone, LAN, 2.4GHz, 5GHz, WPS, BBU, USB) on the front panel to diagnose device status and network connectivity.
- Interface: Familiarize yourself with the interfaces and buttons on the side (On/Off, WPS, Wi-Fi, USB2) and back (Power, USB1, Reset, LAN1-LAN4, Phone1, Phone2, PON, BBU) panels of the device.
- Product Features: The device supports GPON, Ethernet, Phone (SIP), and WLAN (IEEE 802.11ac/b/g/n) interfaces. Technical features include broadband and Ethernet service access, SIP-based phone service, WLAN connectivity, USB data sharing/backup/restoration, multi-level security, QoS, and network management.
- Technical Specification: Refer to Table 6-1 for specifications including dimension (220 mm (W) × 35 mm (D) × 310 mm (H) with antenna), rated current (2 A), rated voltage (12 V DC), operating temperature (0°C ~ 40°C), and operating humidity (5% ~ 95%).
- Cable Connection: Figure 7-1 illustrates the entire connection setup. Verify cable connections and press the On/Off button.
- Troubleshooting: Consult the troubleshooting section for issues like the Power indicator being off, LOS indicator issues, PON indicator issues, LAN indicator issues, and Phone indicator issues.
- FCC Statement: Read the FCC compliance and radiation exposure information.
Troubleshooting and error codes
| Troubleshooting Issue | Potential Cause | Solution |
|---|---|---|
| The Power indicator on the front panel is off after the power button is pressed. | The power adapter is not correctly connected to the device. | Be sure to use the power adapter supplied with the device. |
| The LOS indicator is flashing red or solid red after the device is powered on. | The optical fiber is not correctly connected to the ONT PON interface. | - |
| The optical fiber is broken or damaged. | - | |
| If the indicator is solid red or keeps flashing, please contact the service provider for maintenance. | Contact the service provider. | |
| The PON indicator on the front panel is off or flashing green after the device is powered on. | The GPON link is not established. | - |
| The ONT is not registered. | - | |
| Please contact the service provider for help. | Contact the service provider. | |
| The green LAN indicator on the front panel is off after the device is powered on. | The corresponding LAN link is not established. | - |
| The Ethernet cable is not correctly connected to the LAN interface. | - | |
| The network device connected to the LAN interface is not powered on. | - | |
| The Phone indicator on the front panel is off after the device is powered on. | The telephone function is abnormal. | Please contact the service provider for help. |