User's Manual

ES520 Hardware Guide
iv
FCC CLASS A WARNING
MODIFYING THE EQUIPMENT WITHOUT FORTRESS
AUTHORIZATION MAY RESULT IN THE EQUIPMENT NO LONGER
COMPLYING WITH FCC REQUIREMENTS FOR CLASS A DIGITAL
DEVICES. IN THAT EVENT, YOUR AUTHORITY TO USE THE
EQUIPMENT MAY BE VOIDED UNDER FCC REGULATIONS, AND YOU
MAY BE REQUIRED TO CORRECT ANY INTERFERENCE TO RADIO
OR TELEVISION COMMUNICATIONS AT YOUR OWN EXPENSE.
TO COMPLY WITH FCC RF EXPOSURE COMPLIANCE
REQUIREMENTS, THE ANTENNAS USED FOR THESE
TRANSMITTERS MUST BE INSTALLED TO PROVIDE A SEPARATION
DISTANCE OF AT LEAST 20 CM FROM ALL PERSONS AND MUST
NOT BE CO-LOCATED OR OPERATED IN CONJUNCTION WITH ANY
OTHER ANTENNA OR TRANSMITTER.
CAUTION: A 4.4 GHZ MILITARY BAND RADIO IS OPTIONAL
EQUIPMENT IN THE ES520. THE 4.400 GHZ–4.750 GHZ
FREQUENCY RANGE IS REGULATED BY THE UNITED STATES
DEPARTMENT OF DEFENSE. THE FCC HAS NO REGULATORY
OVERSIGHT OR JURISDICTION ON PRODUCTS CONTAINING
RADIOS THAT OPERATE IN THIS RANGE. USE OF 4.4 GHZ RADIOS
IS STRICTLY FORBIDDEN OUTSIDE OF U.S. MILITARY
APPLICATIONS AND AUTHORITY.
WARNING: FORTRESS IS NOT RESPONSIBLE FOR ANY RADIO
OR TELEVISION INTERFERENCE CAUSED BY UNAUTHORIZED
MODIFICATION OF THE DEVICES INCLUDED WITH THE SECURE
WIRELESS ACCESS MESH POINT, OR THE SUBSTITUTION OR
ATTACHMENT OF CONNECTING CABLES AND EQUIPMENT OTHER
THAN THAT SPECIFIED BY FORTRESS. THE CORRECTION OF
INTERFERENCE CAUSED BY SUCH UNAUTHORIZED
MODIFICATION, SUBSTITUTION OR ATTACHMENT IS THE
RESPONSIBILITY OF THE USER. FORTRESS IS NOT LIABLE FOR
ANY DAMAGE OR VIOLATION OF GOVERNMENT REGULATIONS
THAT MAY ARISE FROM THE USER FAILING TO COMPLY WITH
THESE GUIDELINES.
ANTENNA RESTRICTIONS
THIS DEVICE HAS BEEN DESIGNED TO OPERATE WITH ANTENNAS
THAT HAVE A MAXIMUM GAIN OF 26 dB. ANTENNAS HAVING A GAIN
GREATER THAN 26 dB ARE STRICTLY PROHIBITED FOR USE WITH
THIS DEVICE. THE REQUIRED ANTENNA IMPEDANCE IS 50 OHMS.