BS Installation
Copyright Alvarion Ltd.
1Objectives
Upon completion of this module students will know the following: BS installation
Installation procedure Shelf installation - Indoor Outdoor installation Grounding issues Grounding issues
2Installation Process
Site Survey andPreparation
LOS Evaluation
Base StationInstallation
Access Unit
Subscriber UnitInstallation
Subscriber Unit
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SitePreparation
LOS EvaluationSite EvaluationRadio Survey
Base StationIndoor Unit Installation
Access UnitOutdoor UnitInstallation
Subscriber UnitIndoor Unit Installation
Subscriber UnitOutdoor UnitInstallation
3Site Survey
Check line of sight conditions between the Access unit and Subscriber unitsNote: BreezeMax CPE can also associate in Non-LOS conditions
Estimate the distance between the AU and SUs Map radio interference
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Map radio interference Validate the basic environmental conditions
Poles position Power lines Grounding IF cable length Air conditioning etc.
4Site Survey - Distance and LOS
Compass
BinocularGPS
Azimuth to BS ()
Distance From BS (Km)
SU Name
SU Nu.
1.
2.
3.4.
5.
6.7.
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5Site Survey - Radio Survey
Provide RF spectrum information of the installation site at the selected frequency range
Antenna Band Pass Filter Amplifier Spectrum Analyzer
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6Site Preparation
Verify the following: Safe and free of obstacle access to the Mast Mast and ODU are properly grounded
Install antenna mast according to the site plan and site survey Position the antenna on the mast so that nothing can cross the
air link Rack Preparation
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Placement of the rack based on the proposed Shelf location Preparation of the required screws Verify existence of grounding bar -48 VDC power supply Cable ducting for the following:
IF cable Power cable Ethernet cables
Ventilation Verify proper grounding of all indoor devices
7Site Preparation
Power Distribution Lines for the ShelfA separate circuit breaker for each PIUPolarity check
For detailed information about the next slides please refer to the : BreezeMAX TDD Base Station Installation & Maintenance Manual
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for each cable
AU IDU-ODU IF Cable - according to the specifications
8"H" Type Antennas Mounting Bracket
H shaped metal barUp to 4 ODUs can be installedDiversity of 1.3 meters/4.26 feet between AntennasDesigned to be installed on different types of structures:
MonopolesMasts Towers
Lightning Rod
ODU
9Types of H adaptors
Mast
Tower Leg
Monopole 3 sectors
Monopole 4 sectors
10Types of H adaptors
DescriptionProductP/NH shaped metal bar, for installation of up to 4 Radios on
the Base Station Tower (Required Adapter).BMAX-BST-H-Kit735218
Lightning protection for installation in H shaped metal barBMAX-BST-H-LP735219
Monopole adapter for H shaped metal bar installation for 3 sector 6" - 10"
BMAX-BST-MON-ADA-A735220
Monopole adapter for H shaped metal bar installation for 3 sector 10" - 14"
BMAX-BST-MON-ADA-B735221sector 10" - 14"
Monopole adapter for H shaped metal bar installation for 3 sector 16" - 20"
BMAX-BST-MON-ADA-C735222
Monopole adapter for H shaped metal bar installation for 3 sector 24" - 30"
BMAX-BST-MON-ADA-D735223
Monopole adapter for H shaped metal bar installation for 4 sector 10" - 14"
BMAX-BST-MON-ADA-E735224
Monopole adapter for H shaped metal bar installation for 4 sector 16" - 20"
BMAX-BST-MON-ADA-F735225
Monopole adapter for H shaped metal bar installation for 4 sector 24" - 30"
BMAX-BST-MON-ADA-G735226
Tower adapter for H shaped metal bar installation (2"-4")BMAX-BST-TOW-ADA735227Mast adapter for H shaped metal bar installation (0"-2") BMAX-BST-MAS-ADA735228
11Lightning protection - Grounding
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GroundingScrew
12ODU Positioning
The ODU can be either pole/tower or wall mounted Easy access to the unit for installation and testing Installed as close as possible to the antenna (if there is one) Antenna position make sure coverage will not be affected by
environmental conditions For instructions on installing the antenna, refer to the
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For instructions on installing the antenna, refer to themanufacturers manual
Higher antenna placement ,better achievable link quality The antenna of the Access Unit should be installed so that it will
provide coverage to all Subscriber Units within its service area Minimum distance between two antennas is 1 meter/3.28 feet The antenna should be installed to provide a direct, or near line of
sight with the coverage area
13ODU Installation
The Outdoor Unit can be mounted on a pole using one of the following methods:
On a pole, using the clamps and threaded rods.
Special clamps and open-ended bolts are supplied with each unit.
There are two pairs of threaded holes on the back of the unit, enabling the special clamps back of the unit, enabling the special clamps to be mounted on diverse pole widths
Insert the open ended bolts with the grooves pointing outward since these grooves will enable you to use a screwdriver to fasten the bolts to the unit
Installing an outdoor unit on a pole, using the metal bands
Insert the bands into their designated place at the ODU (at the top and at the bottom)
Attach the bands to the pole by fastening the bands' screw
14ODU Installation
Use isolation material (such as tar bands) to cover all outdoor connectors to prevent water penetration into the cablesUsing 3M's cold shrink tube 8426-9 as a solution for sealing is recommendedThis solution requires no training or special toolsIf you are using the 8426-9 cold shrink, leave a 10 cm/0.32 feet space to
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If you are using the 8426-9 cold shrink, leave a 10 cm/0.32 feet space to keep the cable flexible
15Other devices installation
GPS and Adaptor
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16Antenna Positioning
When the BS antenna is installed outside the boundaries of the roof The minimum distance
between the antenna and the railing or building side is 25
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building side is 25 cm/0.82 feet
The angle between the antenna and the roof is 22
25 CM
22
17Antenna Positioning
When the BS antenna is installed on a pole on top of the railing, the antenna is not blocked by anything on the roof, or on adjacent roofs It is essential to 1.5 M
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It is essential to maintain a minimum distance of 1.5m/4,92 feet between the lower part of the antenna and the top of the roof, fence or railing, whichever is closer to the antenna
1.5 M
18Antenna Positioning
When the BS antenna is installed on a pole and the pole is installed towards the center of the roof, the antenna may be blocked by objects on the roof or by the railing or fence It is essential to maintain a
Blocking object
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It is essential to maintain a minimum distance between the lower part of the antenna and fence or railing, in order to minimize disturbance of the antennas lobe
The distance to the roofs floor and the fence depends on the distance of the antenna from the railing
The farther the horizontal distance of the antenna from the raising, the larger the vertical distance
19BS Antenna Alignment
Identify a reference point on the landscape Add or subtract 90to/from the Base Station azimuth Using the compass, align the outer frame of the antenna
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20BS Antenna Alignment
Magnetic North
Do not align using a compass when you are on top of the tower, due to interference with the magnetic field of the compass
True North definition - navigational term referring to the direction of the North Pole
Magnetic North definition the point where the geomagnetic field points vertically downwards, i.e.
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Sector #1Antenna Direction
Magnetic North 45
SU Antenna
360 - 45 = 315 Variations is defined as the
angular difference between these two directions
The compass is always referring to the Magnetic North while a GPS can point either to the True North or to the Magnetic North depending on the GPS type and configuration
21Base Station IDU Installation
Attach the cable guide to the top panel of the chassis Install the chassis in a 19" cabinet
Note: For installation in a ETSI rack a suitable adaptors should be installed on the chassis
Leave a space of at least 1U between the upper covers of the
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Leave a space of at least 1U between the upper covers of the chassis and other units in the cabinet
Connect the grounding cable to the ground terminal located on the rear panel of the chassis and
Connect the opposite end of the grounding cable to a ground connection or to the cabinet
22Base Station IDU Installation
Carefully insert the modules into the relevant slots Secure the modules in their intended locations Place blank covers over all of the unused slots Connect the DATA port of the NPU to the backbone (use a
straight Ethernet cable to connect to a hub/switch and a cross for a router )
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Note: The maximum length of the Ethernet cable is 100m/328 feet when operating at 100 Mbps and 70m/230 feet when operating at 1 Gbps
If the MGMT port will be used for remote management, connect it to the appropriate data equipment (use a straight Ethernet cable to connect to a hub/switch/ and a cross for a router
Note: The maximum length of the Ethernet cable is 100 m/328 feet
23Base Station IDU Installation
Connect the DC power cable to the power jack of the PIU module
If a redundant PIU is installed, connect a DC power cable also to the second PIU module
Connect the power cord(s) to the -48 VDC power source(s), as follows: Connect the black wire to the -48 VDC contact of the power source
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Connect the red wire to the + (Return) contact Connect the ground wire to the ground Any BS installation using AC-DC converter (rectifier, ups), must
be approved by electrician for clean AC and DC inputs, including proper grounding
24Base Station IDU Installation
Connect the IF cable(s) To avoid transmissions at undesirable frequencies, verify that
the frequency and bandwidth parameters are properly configured before connecting the IF cables
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25Base Station IDU Installation
Each shelf contains the following equipment BMAX-BST-SH-SP Base Station Chassis BMAX-BST-AVU Air Ventilation Unit (installed) BMAX-BST-PIU (1 or 2 per Base Station chassis) Power Interface
Unit(s) BMAX-BST-PSU (up to 4 per Base Station chassis) Power Supply
Unit(s)
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BMAX-BST-NPU Network Processing Unit BMAX-BST-AU-IDU (up to 6 per Base Station chassis) Access Unit
Indoor Unit(s)
26Base Station IDU Installation
Additional equipment and accessories Ethernet cable (straight) for connecting the NPU to a Hub/Switch DC power cable(s) Shielded with 2 10AWG conductors A ground cable with appropriate terminations for connecting the
chassis to the rack ETSI rack adaptors (if required)
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Portable PC for configuring parameters using the Monitor cable
27Base Station IDU Installation
Cable Tray
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Mounting Holes
Mounting Holes
The cable tray should be installed on the top of the chassis front to enable convenient routing of cables connecting to power source(s), outdoor unit(s) and other equipment
28Base Station IDU Installation
Hold the ejector levers and insert the card to its designated place in the shelf
Slide the card fully into its place Push ejector levers in the inner
direction (towards the card)
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direction (towards the card)
A "click" sound indicates that the ejector levers are locked and the card is fully inserted
Fasten the two (or one) captive screws of the card
29Base Station Card Removal
Loosen the two (or one) captive screws of the requested card
Unlock the ejector levers by pressing the red button
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Pull the ejector levers outwardly (from the card out)
Pull the card out by its ejector levers and remove it from the shelf
Thank you