Users Manual

SonicWall

SonicWave 231c

Safety and Regulatory Information

United States of America Authorized Channels

SonicWall declares that the APL57-0F2, APL57-101 (FCC ID: 2AKCZ-101) when sold in the USA is

limited to CH1‐CH11 by specified firmware controlled in the USA.

CAUTION: This device is restricted to indoor use due to its operation in the

5.15GHz to 5.25GHz frequency range. The FCC requires this product to be used

indoors for the frequency range 5.15GHz to 5.25GHz to reduce the potential for

harmful interference to co‐channel Mobile Satellite systems.

High power radars are allocated as primary users of the 5.25GHz to 5.35GHz and 5.65GHz to

5.85GHz bands. These radar stations can cause interference with this device or can cause

damage to this device, or both.

The APL57-0F2, APL57-101 device has been designed to operate with an antennas having a

maximum gain of 3.19 dBi 2.4 GHz and 5.85 dBi for 5 GHz with R-SMA connector. Antenna having

a higher gain is strictly prohibited. The required antenna impedance is 50 ohms..

Dynamic Frequency Selection (DFS) is required on all Wireless LAN Master devices (usually

Access Points) and Wireless LAN Clients (usually Wireless NICs) that operate within 5470MHz –

5725MHz. SonicWaves that have these frequencies and channels enabled in this range comply

with North American and International DFS requirements. Some frequencies are blocked, and

cannot be selected by the user per each specific regional approval.

Specific to the USA, at the urging of the Federal Communication Commission (FCC) user/installers

should avoid operation frequencies near Terminal Doppler Weather Radar (TDWR) systems

frequencies 5600‐5650 MHz when installing a SonicWave within 35km of line‐of‐site of TDWR

sites. If TDWR is within 35km the SonicWave, frequencies should be set to at least 30MHz above

or below any TDWR system frequency at that site. TDWR locations and specific frequencies used

can be found at http://spectrumbridge.com/udrs/home.aspx. Detailed current and background

information can be found at http://www.wispa.org/?page_id=2341.