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: dB/10 G =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 P, dBm G, dBi Uncontrolled Environment MPE 1 mW/cm2 Controlled MPE 1 mW/cm2 MPE 5 mW/cm2 P, dBm 12.0 12.0 12.0 12.0 G, dBi 18.0 23.0 26.0 28.5 Safe Distance, cm 20* 20* 22.4 29.9 Safe Distance, cm 20* 20* 20* 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.
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