Wireless N2X5-7S1-16B User Manual Info re manual modifications requested 22 Nov

Wireless Inc Info re manual modifications requested 22 Nov

Info re manual modifications requested 22 Nov

Page 1 of 3Please make the following changes to the N2-X Ethernet Extender Manual:Change antenna gain numbers (dBi) in Table 3.1 to values shown below, and add text between tableheading and table as shown:Table 3.1 - Maximum Transmit Power Level Setting vs. Antenna Type (for compliance with FCCEIRP limits) in the 5.3 GHz bandPer the following table, in the 5.3 GHz band the highest power setting (approximately +12 dBm) can onlybe installed with the lowest gain antenna which is the 6” Flat Panel Plane Polarized (DFPD.5-52) with 17.5dBi. Each radio is shipped from the factory with a standard 6’ coaxial cable for connection between theradio and the antenna. The cable has a nominal loss of approximately 2.6 dB.UNII radios are covered under CFR 47 FCC part 15, 15.407 Subpart E. 15.407.a.2 which statesPtransmit = 11 dBm + 10 log B where B is the -26 dB BW with a 6 dBi antenna. Above 6 dBi antenna gainthere is a 1:1 reduction in Ptransmit to maintain the same MAXIMUM EIRP. This is accomplished by thechanges in output power setting for the alternative antennas. The FCC EIRP limit for the 5.3 GHz band with our transmitter bandwidth is +28 dBm. With the transmitpower set to +12 dBm, the EIRP with the 6” Flat Panel antenna, and standard 6’ coaxial cable will be:12 dBm + 17.5 dBi –2.6 dB = 26.9 dBm.Antenna Type Manufacturer P/N Maximum TransmitPower Setting (dBm)2’ diameter dish with radome, Plane Polarized, 28.1 dBi Gabriel SSP2-52ARI 02’ diameter dish with radome, Dual Polarized, 28.1 dBi Gabriel SSD2-52ARI 06” Flat Panel, Plane Polarized, 17.5 dBi Gabriel DFPD.5-52 +1212” Flat Panel, Plane Polarized, 23 dBi Gabriel DFPD1-52 +424” Flat Panel, Plane Polarized, 27.5 dBi Gabriel DFPD2-52 0
Page 2 of 3Please insert the following in section 2.3 on page 10 between the last paragraph in the text that describesthe “outdoor unit” interfaces and Table 2.4. This is a duplicate of the above statements.Table X.X - Maximum Transmit Power Level Setting vs. Antenna Type (for compliance with FCCEIRP limits) in the 5.3 GHz bandPer the following table, in the 5.3 GHz band the highest power setting (approximately +12 dBm) can onlybe installed with the lowest gain antenna which is the 6” Flat Panel Plane Polarized (DFPD.5-52) with 17.5dBi. Each radio is shipped from the factory with a standard 6’ coaxial cable for connection between theradio and the antenna. The cable has a nominal loss of approximately 2.6 dB.UNII radios are covered under CFR 47 FCC part 15, 15.407 Subpart E. 15.407.a.2 which statesPtransmit = 11 dBm + 10 log B where B is the -26 dB BW with a 6 dBi antenna. Above 6 dBi antenna gainthere is a 1:1 reduction in Ptransmit to maintain the same MAXIMUM EIRP. This is accomplished by thechanges in output power setting for the alternative antennas. The FCC EIRP limit for the 5.3 GHz band with our transmitter bandwidth is +28 dBm. With the transmitpower set to +12 dBm, the EIRP with the 6” Flat Panel antenna, and standard 6’ coaxial cable will be:12 dBm + 17.5 dBi –2.6 dB = 26.9 dBm.Antenna Type Manufacturer P/N Maximum TransmitPower Setting (dBm)2’ diameter dish with radome, Plane Polarized, 28.1 dBi Gabriel SSP2-52ARI 02’ diameter dish with radome, Dual Polarized, 28.1 dBi Gabriel SSD2-52ARI 06” Flat Panel, Plane Polarized, 17.5 dBi Gabriel DFPD.5-52 +1212” Flat Panel, Plane Polarized, 23 dBi Gabriel DFPD1-52 +424” Flat Panel, Plane Polarized, 27.5 dBi Gabriel DFPD2-52 0
Page 3 of 3Table X.X - Maximum Transmit Power Level Setting vs. Antenna Type (for compliance with FCCEIRP limits) in the 5.7 GHz band, original and July 31, 1998 rulesPer the following table, in the 5.7 GHz band the highest power setting (approximately +12 dBm) can onlybe installed with the lowest gain antenna which is the 6” Flat Panel Plane Polarized (DFPD.5-52) with 17.5dBi. Each radio is shipped from the factory with a standard 6’ coaxial cable for connection between theradio and the antenna. The cable has a nominal loss of approximately 2.6 dB.UNII radios are covered under CFR 47 FCC part 15, 15.407 Subpart E. 15.407.a.3 which statesPtransmit = 17 dBm + 10 log B where B is the -26 dB BW with a 6 dBi antenna. Above 6 dBi antenna gainthere is a 1:1 reduction in Ptransmit to maintain the same MAXIMUM EIRP. This is accomplished by thechanges in output power setting for the alternative antennas. The original FCC EIRP limit for the 5.7 GHz band with our transmitter bandwidth is +33 dBm. With thetransmit power set to +12 dBm, the EIRP with the 6” Flat Panel antenna, and standard 6’ coaxial cable willbe: 12 dBm + 17.5 dBi –2.6 dB = 26.9 dBm. The corresponding settings are included in the following table.Antenna Type Manufacturer P/N Maximum TransmitPower Setting (dBm)2’ diameter dish with radome, Plane Polarized, 28.1 dBi Gabriel SSP2-52ARI 02’ diameter dish with radome, Dual Polarized, 28.1 dBi Gabriel SSD2-52ARI 06” Flat Panel, Plane Polarized, 17.5 dBi Gabriel DFPD.5-52 +1212” Flat Panel, Plane Polarized, 23 dBi Gabriel DFPD1-52 +824” Flat Panel, Plane Polarized, 27.5 dBi Gabriel DFPD2-52 +4The FCC will also allow higher EIRP for point to point links with higher gain antennas. Page 703 of theFCC document, CFR 47 FCC part 15, 15.407 Subpart E, FR 40836, July 31, 1998 has the provisions forthese power limits. The path length isn’t increased, since the 5.3 GHz transmitter isn’t allowed the higherEIRP. We recommend the higher power settings only when absolutely necessary.This rule states " fixed pt-pt U-NII devices operating in this band may employ transmitting antennas withdirectional gain up to 23 dBi without the corresponding reduction in transmitter peak output power or peakpower spectral density”. Also above 23 dBi antenna gain there is a 1:1 reduction in Pout to maintain thesame MAX EIRP.We are in compliance even at the maximum antenna gain and transmitter power, since thecorresponding output power is over +27 dBm in our BW and the resulting EIRP for a 6 dBi antenna is +33dBm. This EIRP limit is further extended to +44 dBm by a +23 dBi antenna. Our EIRP with a 23 dBiantenna at maximum output power is 12 dBm + 23 dBi –2.6 dB = +32.4 dBm. With the highest gainantenna and maximum output power the EIRP would be 12 dBm + 28.1 dBi –2.6 dB = +37.5 dBm.

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