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

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Document ID	373209
Application ID	j80XN6aH5GftO9Ti8YAP4w==
Document Description	Handbook Annex A
Short Term Confidential	No
Permanent Confidential	No
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Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	82.02kB (1025208 bits)
Date Submitted	2003-11-13 00:00:00
Date Available	2003-11-13 00:00:00
Creation Date	2003-11-11 14:09:23
Producing Software	Acrobat Distiller 6.0 (Windows)
Document Lastmod	2003-11-11 14:10:07
Document Title	13
Document Creator	Acrobat PDFMaker 6.0 for Word
Document Author:	Clem

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. PeerPeer 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.
Static Link Budget (dB)
Operating Mode
BPSK 1/2
QPSK 1/2
QPSK 2/3
16QAM 1/2
16QAM 3/4
64QAM 2/3
64QAM 3/4
64QAM 7/8
14 inch, Dual
Polar, 23.5dBi
Integrated
Antenna
167
163
161.1
156.6
152.2
146.7
144.7
140.5
2ft Single Pol Flat 3ft Single/Dual Pol 4ft Single/Dual Pol 6ft Single/Dual Pol
Plat or Parabolic
Parabolic Dish,
Parabolic Dish,
Parabolic Dish,
Dish, ~28dBi
~31.5dBi
~34.5dBi
~37.7dBi
173.6
169.6
167.7
163.2
158.8
153.3
151.3
147.1
180.6
176.6
174.7
170.2
165.8
160.3
158.3
154.1
186.6
182.6
180.7
176.2
171.8
166.3
164.3
160.1
193
189
187.1
182.6
178.2
172.7
170.7
166.5
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
Andrew
Andrew
Gabriel
Gabriel
MTI
MTI
MTI
MTI
RFS
RFS
Telectronics
Andrew
Andrew
Andrew
Andrew
Andrew
Andrew
Andrew
Andrew
Gabriel
Gabriel
Gabriel
Gabriel
Gabriel
Gabriel
Gabriel
Gabriel
Gabriel
Gabriel
Gabriel
Gabriel
Gabriel
Gabriel
Gabriel
Gabriel
Gabriel
Gabriel
RadioWaves
RadioWaves
RadioWaves
RadioWaves
RadioWaves
RadioWaves
RadioWaves
RadioWaves
RadioWaves
RadioWaves
RadioWaves
RadioWaves
RFS
RFS
RFS
RFS
RFS
RFS
RFS
StellaDoradus
Antenna Type
Andrew 1-foot Flat Panel, FPA5250D12-N (23.6dBi)
Andrew 2-foot Flat Panel, FPA5250D24-N (28dBi)
Gabriel 1-foot Flat Panel, DFPD1-52 (23.5dBi)
Gabriel 2-foot Flat Panel, DFPD2-52 (28dBi)
MTI 17 inch Diamond Flat Panel, MT-485009 (23dBi)
MTI 15 inch Dual-Pol Flat Panel, MT-485025/NVH (23dBi)
MTI 2 ft Directional Flat Panel, MT-20004 (28dBi)
MTI 2 ft Flat Panel, MT-486001 (28dBi)
RFS 1-foot Flat Panel, MA0528-23AN (23dBi)
RFS 2-foot Flat Panel, MA0528-28AN (28dBi)
Teletronics 2-foot Flat Plate Antenna, ANT-P5828 (28dBi)
Andrew 2-foot Parabolic, P2F-52 (29.4dBi)
Andrew 2-foot Dual-Pol Parabolic, PX2F-52 (29.4dBi)
Andrew 3-foot Parabolic, P3F-52 (33.4dBi)
Andrew 3-foot Dual-Pol Parabolic, PX3F-52 (33.4dBi)
Andrew 4-foot Parabolic, P4F-52 (34.9dBi)
Andrew 4-foot Dual-Pol Parabolic, PX4F-52 (34.9dBi)
Andrew 6-foot Parabolic, P6F-52 (37.6dBi)
Andrew 6-foot Dual-Pol Parabolic, PX6F-52 (37.6dBi)
Gabriel 2-foot High Performance QuickFire Parabolic, HQF2-52-N
Gabriel 4-foot High Performance QuickFire Parabolic, HQF4-52-N
Gabriel 6-foot High Performance QuickFire Parabolic, HQF6-52-N
Gabriel 2-foot High Performance Dual QuickFire Parabolic, HQFD2-52-N
Gabriel 4-foot High Performance Dual QuickFire Parabolic, HQFD4-52-N
Gabriel 6-foot High Performance Dual QuickFire Parabolic, HQFD6-52-N
Gabriel 2-foot Standard QuickFire Parabolic, QF2-52-N
Gabriel 2-foot Standard QuickFire Parabolic, QF2-52-N-RK
Gabriel 2.5-foot Standard QuickFire Parabolic, QF2.5-52-N
Gabriel 4-foot Standard QuickFire Parabolic, QF4-52-N
Gabriel 4-foot Standard QuickFire Parabolic, QF4-52-N-RK
Gabriel 6-foot Standard QuickFire Parabolic, QF6-52-N
Gabriel 2-foot Standard Dual QuickFire Parabolic, QFD2-52-N
Gabriel 2.5-foot Standard Dual QuickFire Parabolic, QFD2.5-52-N
Gabriel 2-foot Standard Dual QuickFire Parabolic, QFD2-52-N-RK
Gabriel 4-foot Standard Dual QuickFire Parabolic, QFD4-52-N
Gabriel 4-foot Standard Dual QuickFire Parabolic, QFD4-52-N-RK
Gabriel 6-foot Standard Dual QuickFire Parabolic, QFD6-52-N
Radio Waves 2-foot Dual-Pol Parabolic, SPD2-5.2 (28.1dBi)
Radio Waves 2-foot Parabolic, SP2-5.2 (29.0dBi)
Radio Waves 3-foot Dual-Pol Parabolic, SPD3-5.2 (31.1dBi)
Radio Waves 3-foot Parabolic, SP3-5.2 (31.4dBi)
Radio Waves 4-foot Dual-Pol Parabolic, SPD4-5.2 (34.4dBi)
Radio Waves 4-foot Parabolic, SP4-5.2 (34.8dBi)
Radio Waves 6-foot Dual-Pol Parabolic, SPD6-5.2 (37.5dBi)
Radio Waves 6-foot Parabolic, SP6-5.2 (37.7dBi)
Radio Waves 2-foot Parabolic, SP2-2/5 (28.3dBi)
Radio Waves 3-foot Parabolic, SP3-2/5 (31.4dBi)
Radio Waves 4-foot Parabolic, SP4-2/5 (34.6dBi)
Radio Waves 6-foot Parabolic, SP6-2/5 (37.7dBi)
RFS 2-foot Parabolic, SPF2-52AN or SPFX2-52AN (27.9dBi)
RFS 3-foot Parabolic, SPF3-52AN or SPFX3-52AN(31.4dBi)
RFS 4-foot Parabolic, SPF4-52AN or SPFX4-52AN(33.9dBi)
RFS 6-foot Parabolic, SPF6-52AN or SPFX6-52AN (37.4dBi)
RFS 2-foot HP Parabolic, SDF2-52AN or SDFX2-52AN (31.4dBi)
RFS 4-foot HP Parabolic, SDF4-52AN or SDFX4-52AN (33.9dBi)
RFS 6-foot HP Parabolic, SDF6-52AN or SDFX6-52AN (37.4dBi)
StellaDoradus 45 inch Parabolic Antenna, 58PSD113
Table 3 : Allowed Antennas for Deployment in USA/Canada
Gain (dBi)
23.6
28
23.5
28
23
23
28
28
23
28
28
29.4
29.4
33.4
33.4
34.9
34.9
37.6
37.6
28.2
34.4
37.4
28.1
34.3
37.3
28.5
28.5
31.2
34.8
34.8
37.7
28.4
31.1
28.4
34.7
34.7
37.7
28.1
29
31.1
31.4
34.4
34.8
37.5
37.7
28.3
31.4
34.6
37.7
27.9
31.4
33.9
37.4
31.4
33.9
37.4
33.8
Flat Plate
Parabolic Dish

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