Troubleshooting; Fcc Statement - Zte ZXHN F680 User Manual

obstacles, obstacle material and density, and interference source. It is recom-
mended that you place the product in accordance with the following principles
to maximize the strength of wireless signals.
�
The product should be far away from the objects affecting wireless signal
propagation, for example, an object with a high reflectivity such as a metallic
object or a mirror.
�
The product should be far away from an electrical appliance with a strong
magnetic or electric field, for example, a microwave oven, a refrigerator, a
wireless router, a cordless phone, or a Bluetooth product.
�
The product should be installed on the same floor as the applied area.
�
Do not put other objects on the product. Try to reduce the number of obstacles
between the product and a wireless terminal.
�
Horizontally place the product in the middle of the applied area and do not
put it in a corner.
�
Do not place the product at a high position while it is placed horizontally. The
recommended height is 1.2 to 1.5 meters.
8

Troubleshooting

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.
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.
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.
9

FCC Statement

This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC rules. These limits are designed
to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency