Wireless N2-4XE1-5G3 Point to Point Transceiver User Manual revision need entire manual
Wireless Inc Point to Point Transceiver revision need entire manual
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Contents
- 1. user manual revision (need entire manual)
- 2. user manual revision
- 3. Updated user manual page re power into antennas
- 4. user manual
user manual revision (need entire manual)

vii
N2-4XE1 Installation and Operation Manual
Microwave Antenna Radiation Warning
Designed for point-to-point operation,an N2-4XE1 microwave radio system will use directional
antennas to transmit and receive microwave signals.These directional antennas are usually
circular or rectangular n shape,are generally located outdoors,and are usually mounted on a
tower or mast.
Referencing OET Bulletin 65 (Edition 97-01,August 1997)from the Federal Communication
Commission ’s Office of Engineering &Technology,limits for maximum permissible exposure
(MPE)to microwave signals have been adopted by the FCC for both Occupational/Controlled
environments and General Population/Uncontrolled environments. These limits are 5.0 mW/
cm2 and 1.0 mW/cm2 respectively.
The closer you are to the front center-point of a microwave antenna,the greater the power
density of its transmitted microwave signal.Unless you are very close,however,microwave
exposure levels will fall far below the MPE limits.To determine how close to a microwave
antenna you can be and still remain below the MPE limits noted above,“worst case ”predictions
of the field strength and power density levels in the vicinity of an N2-4XE1 ™ microwave
antenna
can be made from the following calculations.The equation is generally accurate in the far-field
of an antenna,and will over-predict power density n the near-field (i.e.close to the antenna).
S =PG/4 π R2
where:
S =power density (in mW/cm2)
P =power input to the antenna (mW)
G =power gain of the antenna in the direction of nterest relative to an isotropic
radiator
R =distance to the center of radiation of the antenna (cm)
Note that G,the power gain factor,is usually expressed in logarithmic terms (i.e.,dB),and must
be converted using the following equation:
G =10dB/10
In order to satisfy FCC RF ezposure requirements, the antennas used with this product must be
installed in such a way as to insure a minum separation distance between the antennas and all
persons of the amounts shown in the table below:
RF Exposure Safety Information
Max RF Power TX Antenna Uncontrolled Environment Controlled MPE 1 mW/cm2
P, dBm G, dBi MPE 1 mW/cm2 MPE 5 mW/cm2

P, dBm G, dBi Safe Distance, cm Safe Distance, cm
12.0 18.0 20* 20*
12.0 23.0 20* 20*
12.0 26.0 22.4 20*
12.0 28.5 29.9 20*
* For fixed and mobile antenna installations, FCC requires a minimum separation distance of 20 cm, regardless of whether
calculations would indicate a lesser distance.
Wireless,Inc.fully supports the FCC ’s adopted MPE limits,and recommends that personnel
maintain appropriate distances from the front of all directional microwave antennas.Should you
have questions about N2-4XE1 ™ microwave signal radiation,please contact the Wireless,Inc.
Customer Service Department.