ZyXEL Communications Corporation NBG4104 用户手册

Appendix G Legal Information

NBG4104 User’s Guide

If this device does cause harmful interference to radio/television reception, which can be 
determined by turning the device off and on, the user is encouraged to try to correct the 
interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and the receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is 
connected.

Consult the dealer or an experienced radio/TV technician for help.

• This transmitter must not be co-located or operating in conjunction with any other antenna or 

transmitter. 

• IEEE 802.11b or 802.11g operation of this product in the U.S.A. is firmware-limited to channels 1 

through 11. 

• To comply with FCC RF exposure compliance requirements, a separation distance of at least 20 

cm must be maintained between the antenna of this device and all persons. 

This device complies with RSS-210 of the Industry Canada Rules. Operation is subject to the 
following two conditions:

this device may not cause interference and

this device must accept any interference, including interference that may cause undesired 
operation of the device

This device has been designed to operate with an antenna having a maximum gain of 2dBi and 
5dBi.

Antenna having a higher gain is strictly prohibited per regulations of Industry Canada. The required 
antenna impedance is 50 ohms.

To reduce potential radio interference to other users, the antenna type and its gain should be so 
chosen that the EIRP is not more than required for successful communication.

This equipment complies with IC radiation exposure limits set forth for an uncontrolled 
environment. This equipment should be installed and operated with minimum distance 20cm 
between the radiator & your body.