Cambium Networks 58XX-T Wireless Ethernet Bridge User Manual 13

Cambium Networks Limited Wireless Ethernet Bridge 13

Contents

Handbook Annex A

13 Annex A - Gemini OS 58XXC 13.1 Scope This Annex details the changes and additional features relevant to the connectorised variant of the Gemini Product, OS 58XXC. 13.2 Product Description 13.2.1 Hardware The OS58XXC is a variant designed to provide the system integrator and installer with the ability to provide extra capability to cope with very difficult radio links compared to the basic Gemini product. The variant allows the use of a variety of externally mounted antennas, either Flat Plate or Dish, which have higher gains than provided by the integrated antenna that is normally used. The OS 58XXC is shown as Fig 38. Figure 1 : 58XXC Outdoor Unit 13.2.2 Antenna Choices The integrated antenna has a gain of 23dBi. External antennas from the list in Table 10 can be used with the OS58XXC. These are approved by the FCC for use with the product and are basically constrained by the following limits: • Single Polarisation Flat Plate Antennas – up to 28dBi per antenna • Single/Dual Polarisation Parabolic Dish Antennas – up to 37.7dBi per polarisation or antenna All external antennas – cable loss between OS 58XXC and the antenna ports must not be less than 1.2dB
13.3 Software/Features The variant operates in the same way as the basic Gemini product and is released initially with the feature set of the OS 5815 product. The areas where the functionality is modified are 13.3.1 Status Page The link loss calculation presented on the Status Page on the management interface has to be modified to allow for the increased antenna gains at each end of the link. The manufacturing process of the OS5815C configures the standard hardware of the unit for use with external antennas. The installer is prompted, as part of the installation process, to enter the gain of the external antenna(s) and cable losses at each end of the link. Peer-Peer messaging is used to pass the effective antenna gain to each end of the link so that the link loss calculations can be correctly computed. Figure 2 : Example Status Page (showing new hardware Version data for Connector Version)
13.3.2 Installation Pages The installer is prompted to enter the Antenna Gain and Cable Loss (OS 5815C to antenna) at each end of the link. The Installation Page(s) is shown as Fig 40/41 Figure 3 : Amended Installation Wizard Page Note: In the event that there is a significant difference in length of the antenna cables for the two antenna ports, then the average value should be entered.
Figure 4 : Amended ‘Disarm Installation’ Page
13.3.3 Configuration Pages The amended Configuration Web page is shown below as Figure 42. Figure 5 : Amended System Configuration Page 13.4 Gemini Path Calculator The Gemini Path Calculator described in Para 4.3 of the main user handbook is provided with additional functionality to allow for the higher gains of the external antennas permissible with OS 5815C. When the ‘Standard Antenna’ check box in the spreadsheet is de-selected, the user is offered a pull-down menu of allowed antenna options. When the required antenna is selected, the appropriate gain is entered in the spreadsheet. Alternatively, the user can select the ‘Other’ antenna option and enter a gain value to determine how much antenna gain would be required for a specific link. 13.5 Deployment Considerations The majority of radio links can be successfully deployed with the OS5815 product. It should only be necessary to use external antennas where the Link Budget Calculator indicates marginal performance for a specific link. Examples of this would be where the link is heavily obscured by dense woodland on an NLOS link or extremely long LOS links (>80km) over water.
The external antennas can be either dual-polarisation (as the integrated antenna) or two single polarised antennas can be used in a spatially diverse configuration. It is expected that the dual-polarisation antennas would normally be used to simplify the installation process; spatially diverse antennas may provide additional fade margin on very long LOS links where there is evidence of correlation of the fading characteristics on Vertical and Horizontal polarisations. Dual polarisation antennas (with a gain greater than the integrated antenna) are currently only available in parabolic dish form. 13.6 Regulatory Issues 1 This section applies to products deployed in the USA or where FCC Part 15 regulations are used for unlicensed radio equipments 13.6.1 Antenna Choice The antennas allowed to be deployed (in the USA) with the Gemini 5815C are shown in Table 10 13.6.2 Cable Losses The FCC approval for the product is based on tests with a cable loss between the unit and the antenna of 1.2dB at 5.8GHz. The use of lower cable losses with the highest gain antennas of either type would result in the installation being outside the FCC rules. As an indication, 1.2dB of cable loss corresponds to the following cable lengths excluding connector losses (source: Times Microwave). Cable Length for 1.2dB Cable Loss at 5.8GHz (ft/m) LMR100 1.9/0.6 LMR200 4.6/1.4 LMR300 7.25/2.2 LMR400 11.1/3.4 Table 1 : Cable Losses per Length 13.7 Regulatory Issues 2 In countries where FCC regulations are not relevant, installations should conform to any applicable local regulations for the Equivalent Isotropic Radiated Power (EIRP). 13.8 Link Budget This is increased by the additional gain of the external antenna(s) less the cable losses. The improvement in link budget is indicated in Table 9 for representative antennas when operating in the various modes.
14 inch, Dual Polar, 23.5dBi Integrated Antenna2ft Single Pol Flat Plat or Parabolic Dish, ~28dBi3ft Single/Dual Pol Parabolic Dish, ~31.5dBi4ft Single/Dual Pol Parabolic Dish, ~34.5dBi6ft Single/Dual Pol Parabolic Dish, ~37.7dBiBPSK 1/2 167 173.6 180.6 186.6 193QPSK 1/2 163 169.6 176.6 182.6 189QPSK 2/3 161.1 167.7 174.7 180.7 187.116QAM 1/2 156.6 163.2 170.2 176.2 182.616QAM 3/4 152.2 158.8 165.8 171.8 178.264QAM 2/3 146.7 153.3 160.3 166.3 172.764QAM 3/4 144.7 151.3 158.3 164.3 170.764QAM 7/8 140.5 147.1 154.1 160.1 166.5Static Link Budget (dB)Operating Mode Table 2 : Static Link Budget for Various Antenna Options Notes: Cable Loss is 1.2dB for the External Antennas Gains shown for external antennas are typical values; specific antennas may have different gains Maximum allowed gain is 37.7dBi for a parabolic dish, and 28dBi for flat plate antenna.
Manufacturer Antenna Type Gain (dBi) Flat Plate Parabolic DishAndrew Andrew 1-foot Flat Panel, FPA5250D12-N (23.6dBi) 23.6 YAndrew Andrew 2-foot Flat Panel, FPA5250D24-N (28dBi) 28 YGabriel Gabriel 1-foot Flat Panel, DFPD1-52 (23.5dBi) 23.5 YGabriel Gabriel 2-foot Flat Panel, DFPD2-52 (28dBi) 28 YMTI MTI 17 inch Diamond Flat Panel, MT-485009 (23dBi) 23 YMTI MTI 15 inch Dual-Pol Flat Panel, MT-485025/NVH (23dBi) 23 YMTI MTI 2 ft Directional Flat Panel, MT-20004 (28dBi) 28 YMTI MTI 2 ft Flat Panel, MT-486001 (28dBi) 28 YRFS RFS 1-foot Flat Panel, MA0528-23AN (23dBi) 23 YRFS RFS 2-foot Flat Panel, MA0528-28AN (28dBi) 28 YTelectronics Teletronics 2-foot Flat Plate Antenna, ANT-P5828 (28dBi) 28 YAndrew Andrew 2-foot Parabolic, P2F-52 (29.4dBi) 29.4 YAndrew Andrew 2-foot Dual-Pol Parabolic, PX2F-52 (29.4dBi) 29.4 YAndrew Andrew 3-foot Parabolic, P3F-52 (33.4dBi) 33.4 YAndrew Andrew 3-foot Dual-Pol Parabolic, PX3F-52 (33.4dBi) 33.4 YAndrew Andrew 4-foot Parabolic, P4F-52 (34.9dBi) 34.9 YAndrew Andrew 4-foot Dual-Pol Parabolic, PX4F-52 (34.9dBi) 34.9 YAndrew Andrew 6-foot Parabolic, P6F-52 (37.6dBi) 37.6 YAndrew Andrew 6-foot Dual-Pol Parabolic, PX6F-52 (37.6dBi) 37.6 YGabriel Gabriel 2-foot High Performance QuickFire Parabolic, HQF2-52-N 28.2 YGabriel Gabriel 4-foot High Performance QuickFire Parabolic, HQF4-52-N 34.4 YGabriel Gabriel 6-foot High Performance QuickFire Parabolic, HQF6-52-N 37.4 YGabriel Gabriel 2-foot High Performance Dual QuickFire Parabolic, HQFD2-52-N 28.1 YGabriel Gabriel 4-foot High Performance Dual QuickFire Parabolic, HQFD4-52-N 34.3 YGabriel Gabriel 6-foot High Performance Dual QuickFire Parabolic, HQFD6-52-N 37.3 YGabriel Gabriel 2-foot Standard QuickFire Parabolic, QF2-52-N 28.5 YGabriel Gabriel 2-foot Standard QuickFire Parabolic, QF2-52-N-RK 28.5 YGabriel Gabriel 2.5-foot Standard QuickFire Parabolic, QF2.5-52-N 31.2 YGabriel Gabriel 4-foot Standard QuickFire Parabolic, QF4-52-N 34.8 YGabriel Gabriel 4-foot Standard QuickFire Parabolic, QF4-52-N-RK 34.8 YGabriel Gabriel 6-foot Standard QuickFire Parabolic, QF6-52-N 37.7 YGabriel Gabriel 2-foot Standard Dual QuickFire Parabolic, QFD2-52-N 28.4 YGabriel Gabriel 2.5-foot Standard Dual QuickFire Parabolic, QFD2.5-52-N 31.1 YGabriel Gabriel 2-foot Standard Dual QuickFire Parabolic, QFD2-52-N-RK 28.4 YGabriel Gabriel 4-foot Standard Dual QuickFire Parabolic, QFD4-52-N 34.7 YGabriel Gabriel 4-foot Standard Dual QuickFire Parabolic, QFD4-52-N-RK 34.7 YGabriel Gabriel 6-foot Standard Dual QuickFire Parabolic, QFD6-52-N 37.7 YRadioWaves Radio Waves 2-foot Dual-Pol Parabolic, SPD2-5.2 (28.1dBi) 28.1 YRadioWaves Radio Waves 2-foot Parabolic, SP2-5.2 (29.0dBi) 29 YRadioWaves Radio Waves 3-foot Dual-Pol Parabolic, SPD3-5.2 (31.1dBi) 31.1 YRadioWaves Radio Waves 3-foot Parabolic, SP3-5.2 (31.4dBi) 31.4 YRadioWaves Radio Waves 4-foot Dual-Pol Parabolic, SPD4-5.2 (34.4dBi) 34.4 YRadioWaves Radio Waves 4-foot Parabolic, SP4-5.2 (34.8dBi) 34.8 YRadioWaves Radio Waves 6-foot Dual-Pol Parabolic, SPD6-5.2 (37.5dBi) 37.5 YRadioWaves Radio Waves 6-foot Parabolic, SP6-5.2 (37.7dBi) 37.7 YRadioWaves Radio Waves 2-foot Parabolic, SP2-2/5 (28.3dBi) 28.3 YRadioWaves Radio Waves 3-foot Parabolic, SP3-2/5 (31.4dBi) 31.4 YRadioWaves Radio Waves 4-foot Parabolic, SP4-2/5 (34.6dBi) 34.6 YRadioWaves Radio Waves 6-foot Parabolic, SP6-2/5 (37.7dBi) 37.7 YRFS RFS 2-foot Parabolic, SPF2-52AN or SPFX2-52AN (27.9dBi) 27.9 YRFS RFS 3-foot Parabolic, SPF3-52AN or SPFX3-52AN(31.4dBi) 31.4 YRFS RFS 4-foot Parabolic, SPF4-52AN or SPFX4-52AN(33.9dBi) 33.9 YRFS RFS 6-foot Parabolic, SPF6-52AN or SPFX6-52AN (37.4dBi) 37.4 YRFS RFS 2-foot HP Parabolic, SDF2-52AN or SDFX2-52AN (31.4dBi) 31.4 YRFS RFS 4-foot HP Parabolic, SDF4-52AN or SDFX4-52AN (33.9dBi) 33.9 YRFS RFS 6-foot HP Parabolic, SDF6-52AN or SDFX6-52AN (37.4dBi) 37.4 YStellaDoradus StellaDoradus 45 inch Parabolic Antenna, 58PSD113 33.8 Y Table 3 : Allowed Antennas for Deployment in USA/Canada

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