Nokia Solutions and Networks BTS2400A Non-Line of Site Wireless Data Link User Manual LowPowerBase

Nokia Solutions and Networks Non-Line of Site Wireless Data Link LowPowerBase

Users Manual

iInstalling the Low Power Base StationBroadband Wireless Access SystemPart Number: 104-0046-0001
iiBaseConnect, Expedience, NetProvision, and ProvisionLink are trademarks of NextNet Wireless, Inc.©2004 NextNet Wireless, Inc. All rights reserved.The Low Power Base Station must be professionally installed to ensure that all regulatory requirements are met. These include but are not limited to: local building and safety codes, National Electrical Code, and the FCC rules and regulations.The NextNet Wireless Low Power Base Station is a fixed product that operates as a point-to-point wireless data link. As such, this product is only authorized to operate as manufactured by NextNet Wireless and cannot be modified to operate in any other manner. Installers must ensure that this product complies with the FCC rules. Modifications to this product would be in violation of the FCC rules detailed in 47CFR15.247(b)(3)(iii) which states: Fixed, point-to-point operation, as used in paragraphs (b)(3)(i) and (b)(3)(ii) of this section, excludes the use of point-to-multipoint systems, omnidirectional applications, and multiple co-located intentional radiators transmitting the same information. The operator of the spread spectrum intentional radiator or, if the equipment is professionally installed, the installer is responsible for ensuring that the system is used exclusively for fixed, point-to-point operations.WARNING: This equipment has been tested and found to comply with the FCC guidelines as found in 47CFR1.1310 for Radio Frequency Radiation Exposure Limits as detailed below. A minimum of 36 centimeters or 14 inches of separation between the base station antenna and all persons must be maintained.Radio Frequency Radiation Exposure Limits (FCC Rules 47CFR1.1310)f = frequency in MHz* = Plane-wave equivalent power densityNOTE 1 TO TABLE 1: Occupational/controlled limits apply in situations in which persons are exposed as a consequence of their employment provided those persons are fully aware of the potential for exposure and can exercise control over their exposure.Limits for occupational/controlled exposure also apply in situations when an individual is transient through a location where occupational/controlled limits apply provided he or she is made aware of the potential for exposure.NOTE 2 TO TABLE 1: General population/uncontrolled exposures apply in situations in which the general public may be exposed, or in which persons that are exposed as a consequence of their employment may not be fully aware of the potential for exposure or can not exercise control over their exposure.Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential or commercial installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a TABLE 1. Limits for Maximum Permissible Exposure (MPE)Frequency range (MHz)Electric field-strength (V/m)Magnetic field-strength (A/m)Power density (mW/cm 2)Averaging time (minutes)(A) Limits for Occupational/Controlled Exposures0.3-3.0 614 1.63 *(100) 63.0-30 1842/f 4.89/f *(900/f2)630-300 61.4 0.163 1.0 6300-1500 — — f/300 61500-100,000 — — 5 6(B) Limits for General Population/Uncontrolled Exposure0.3-1.34 614 1.63 *(100) 301.34-30 824/f 2.19/f *(180/f2)3030-300 27.5 0.073 .2 30300-1500 — — f/1500 301500-100,000 — — 1.0 30
iiiparticular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:- Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. - Consult the dealer or an experienced radio/TV technician for help. WARNING: Changes or modifications to this equipment not expressively approved by NextNet Wireless could void the user's authority to operate this product.THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRENTY OF ANY KIND. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCT.NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE ARE PROVIDED "AS IS" WITH ALL FAULTS. NEXTNET WIRELESS DISCLAIMS ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FOM A COUSRE OF DEALING, USAGE, OR TRADE PRACTICE.IN NO EVENT SHALL NEXTNET WIRELESS OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OF DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF NEXTNET WIRELESS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.TABLE 2. Technical InformationFrequency band 2400-2483 MHz TX/RXTransmitting power Up to 0.5 wattsNumber of channels 13Frequency stability ±1.0 ppmChannel bandwidth 6 MHzOperating voltage 120 VAC nominalModulation Orthogonal Frequency Division MultiplexTransmission Time Division Duplex/Time Division Multiplex
iv
vCONTENTSWelcome ..............................................................................................1LPB product overview .........................................................................1Before you begin ..................................................................................1Additional material required for installation .....................................................1Before you begin ...................................................................................................2Installation overview ........................................................................... 2Cabling overview ................................................................................ 3Attaching the LPB to a tower or pole ................................................. 4Installing the LPB inside the mounting bracket ............................... 5Setting the LPB inside the mounting bracket ...................................................5Connecting the cable harness to the LPB .......................................... 7Connecting the GPS unit to the base station ..................................... 8GPS equipment mounting tips ...........................................................................8Connecting the GPS unit to the LPB and daisychaining other LPBs in cell .......................................................................................................................9GPS connectors .....................................................................................................9Powering the LPB .............................................................................10Grounding the LPB ........................................................................... 11Connecting to the backbone network ............................................... 11
vi Installing the lower power base station
1WelcomeThis document describes how to install and use the Expedience low power base station (LPB). The LPB provides wireless high-speed Internet access to CPEs installed at your subscribers’ sites. This document is intended for use by professional equipment installers. Service providers should not attempt to install the LPB. This guide describes how to install the low power base station (LPB). It explains:• How the LPB cables connect the device to your network• How to install the LPB into the mounting bracket• How to install the LPB on a pole.LPB product overviewThe LPB maintains contact with CPEs at your subscribers’ sites. The LPB integrates the transceiver, modem, and a 90 degree antenna into one device. The LPB is designed to be mounted on a pole. The LPB operates in the ISM frequency band (2400-2483.5 MHz). Under typical configurations, the LPB covers an approximate radius of 2 to 3 miles, with a 5 mile maximum. If desired, network access providers can configure their base stations to cover a maximum radius of 20 miles. To cover up to 20 miles, the network access provider enables the extended range feature.Before you beginThis section describes items the installer must gather and things to consider before beginning the LPB installation.Additional material required for installation• Switches for the site and the backbone.• Ground wire of sufficient length to run between the LPB and a ground rod.• It is recommended that the ground wire be an 8 AWG, solid aluminum or copper wire.• It is recommended that the ground rod used be 8 feet (2.5 m) copper. Note that most buildings have an existing ground rod outside, at the main power connection site. If desired, you can install a rod into the ground outside the building. • Anti-seize compound to be applied to the stainless steel screws that hold the LPB to the mounting bracket.
2Installing the low power base stationBefore you beginBefore you install LPBs:• It is recommended that you assign a name to the LPB. For more information refer to the NNOS User Guide.• It is also a good idea to configure the base station with channel, VLAN, power, and other parameters, as described in the guide “NNOS User Guide.” Installation overviewThis section provides an overview of the tasks you will perform when installing LPBs. To install the lower power base station:1Attach the mounting bracket to pole. 2Install the LPB inside the mounting bracket. 3Connect the LPB cable harness to the connector on the back of the LPB. 4If you are using more than one LPB, connect the GPS daisychain cable to the to next LPB in the cell. 5If necessary, adjust the slide bracket to provide the necessary downward tilt. 6Ground the LPB.7Run the LPB power/Ethernet cable to your equipment room. 8Plug the power/Ethernet cable into the data line protector. 9Properly ground the data line protector, by using the grounding cable provided with the data line protector. 10Plug a jumper cable into the other end of the data line protector. Plug the jumper cable to the appropriate jack on the power supply.11Plug one end of an Ethernet cable into the other connector on the power supply. 12Plug the other end of the Ethernet cable into the switch. 13Power on the LPB, by plugging in the power supply.For further information about these tasks, refer to the sections in this chapter.
3Cabling overviewFigure 1 illustrates how cables connect the cell site.Figure 1 LPB cabling diagramSwitchData line protector Power cabletermination boxGPSGPS daisychain cableAC powerBuilding’s wallGround wireLPB power/Ethernet cable
4Installing the low power base stationAttaching the LPB to a tower or poleYou can use clamps to mount the bracket to a tower or pole. Figure 2 shows the clamps wrapped around a pole and screwed to the mounting bracket. Note: You can also use the mounting bracket that ships with the OSU to attach the LPB to a wall. Two u-clamps on the back of the mounting bracket and 4 bolts hold the mounting bracket on a pole or tower. The bracket, like the LPB itself, must be installed vertically.To install the mounting bracket on a pole:1Slide the u-clamps on the back of the mounting bracket around the pole. 2Insert the bolts through the openings in the back of the mounting bracket. 3Screw the bolts into the u-clamps. Figure 2 Mounting bracket and LPB mounted on pole
5Installing the LPB inside the mounting bracketThe LPB must be installed vertically. The LPB has a peg on the top, and a peg on the bottom. The upper and lower pegs snap into the mounting bracket’s peg holes.In addition to the pegs on the LPB, screws hold the LPB securely inside the mounting bracket. Slots in the mounting bracket allow you to tilt the LPB’s internal antenna from 0 to 7 degrees.Setting the LPB inside the mounting bracketYou must install the LPB vertically. To install the LPB in the mounting bracket:1On the bottom arm of the mounting bracket, snap the LPB’s peg into the peg hole. 2On the top arm of the mounting bracket, snap the LPB’s upper peg into the adjustment arch. To accommodate the height of the peg, you may need to lift the mounting bracket’s edge up slightly.3Two sets of screw assemblies attach the top of the LPB to the mounting bracket. For the top of the mounting bracket, assemble the screw (coated with anti-seize compound), split lock washer and flat washer as shown in Figure 3.Figure 3 Mounting bracket screw assembly
6Installing the low power base station4Two sets of screw assemblies attach the bottom of the LPB to the mounting bracket. For the bottom of the mounting bracket, assemble the screw (coated with anti-seize compound), split lock washer, flat washer, ground wire, and double-tab washer, as shown in Figure 3.Let the ground wire dangle to the ground. 5Tighten the screw inserted through the upper bracket and into the LPB in order to hold the LPB in place.6On the bottom arm of the mounting bracket, tighten the bolt on the bottom of the LPB. 7If you need to tilt the LPB’s internal antenna, loosen the screws in the adjustment arch, then realign the screws with the degree of tilt you desire. The degrees (0 through 7) are marked on the mounting bracket.8Plug in the circular end of the LPB communication cable in the bottom of the LPB.
7Connecting the cable harness to the LPBThe cable harness plugs into the lower corner of the LPB. Figure 4 shows the connector and describes the function of the pins in the connector.Table 1 describes the LPB connector’s pins.Figure 4 LPB connectorTable 1 Wiring diagram for LPB connectorPin number Purpose1ENRX+2ENRX-3ENTX-4GND5GND6 -1 PPS7ENTX+8GND9GND10 GND11 +1 PPS12 +19.5 V13 +19.5 V14 GND123671112151618
8Installing the low power base stationConnecting the GPS unit to the base stationThis section provides you with GPS equipment mounting tips. It also explains how to connect the GPS to the LPB and how to daisy chain other base stations in the cell so that they can receive GPS information. Most Expedience system deployments use multiple base stations, at multiple cell sites. As such, these service providers must use a global positioning system (GPS) device to set the date on the LPBs. If you are using multiple base stations at multiple cell sites, you need one GPS device per cell. You then directly connect one base station within that cell to the GPS device. Next, the other base stations are connected to each other, using a daisy chain wiring scheme, so that all base stations in the cell can receive a GPS signal.You can choose the length of the cable that connects the base station to the GPS receiver.Note: If you are not deploying multiple base stations at multiple cell sites, you can set up one LPB to provide a time signal to the other base stations in the cell site. For more information about how to configure an LPB to supply a time pulse to other LPBs in a cell, refer to the NNOS User’s Guide. GPS equipment mounting tipsYou must use the NextNet Wireless supplied GPS system to supply a time synchronization signal to the base stations in a cell. You cannot use a GPS from another manufacturer. The GPS does not ship with mounting accessories. You can obtain these accessories from many suppliers around the world, especially distributors of marine products.Follow these tips when mounting the GPS:• Mount the GPS unit on a threaded pipe or pole.• The GPS mounting socket accepts a 1.0000 x 14 straight thread. It is recommended that the pole/pipe you use be 1.000 inch. • Secure the pipe or pole to the building or other support structure. • Ensure at least half of the sky is clearly visible to the unit.• Expose the unit to the southern portion of the sky. GPS satellites move generally from the southwest to the northeast.15 -422DATA16 +19.5 V17 GPS_V+18 +422DATATable 1 Wiring diagram for LPB connectorPin number Purpose
9Connecting the GPS unit to the LPB and daisychaining other LPBs in cellOne GPS unit can support numerous LPBs in the same cell. 1When you connect the cable harness into the back of the LPB, the GPS unit is able to receive its power from the base station. The GPS device uses 18 volts DC at 150 milliamperes.2So that the remaining LPBs in the cell can receive a GPS signal, connect an LPB adjacent to the LPB you just connected to the GPS unit. Continue to use the daisy chain wiring scheme to connect the remaining LPBs, until all of the LPBs within the cell are connected to each other.On the last LPB in the daisy chain, connect the load termination on the open GPS connection.GPS connectorsFigure 5 displays the front view of the connectors on the GPSTable 2 lists the purpose of the pins that fit into the connector.Figure 5 GPS connectorsTable 2 GPS connector pinsPin number Purpose1+1 PPS2 -1 PPS3 +422 data4 -422 data5GPS V+6GND145362
10 Installing the low power base stationPowering the LPBAfter you have run the cable from the LPB into the appropriate building, provide power to the LPB. To provide power to the LPB:1Plug the LPB communication cable running from the LPB into the end of the data line protector which is labelled as unprotected. Figure 6 illustrates the data line protector.Note: One side of the data line protector is marked “protected side” and the other side is marked “unprotected side”. The protected side plugs to the direction of the power supply. The unprotected side plugs to the direction of the LPB.2Use the ground cable provided with the data line protector to properly ground it. You can use either ground terminal on the data line protector. 3Plug a jumper cable into the end of the data line protector that is labelled as protected. Insert the other end of the jumper cable into the power supply, in the jack labelled “OSU/Power.”4Plug the power supply cord into a power source. The LPB uses standard AC power. Figure 6 Data line protectorGrounding terminals
11Grounding the LPB1Connect the ground wire from the LPB to the ground rod in the ground next to the building.2Attach all wires to the building by using electrical staples. Use drip loops as needed. Connecting to the backbone networkTypically, an LPB connects to a level 2 switch. The switch controls the base station data traffic to and from the backbone network.Connect the switch to the backhaul network using the appropriate cabling.
12 Installing the low power base station
13Aantennadownward tilt, 6anti-seize compound, 1Bbackbone networkconnecting to, 11base stationdaisy chaining within cell, 9Ccabling diagram for LPB, 3Ddaisy-chaining base stations, 9data line protector, 10grounding, 10GGPSconnecting to LPB, 9daisy-chained base stations, 9exposure requirements, 8mounting pole and socket, 8powering, 9GPS connector pin diagran, 9groundingdata line protector, 10LPB, 11grounding rod, 1grounding wirerecommended, 1LLPBbottom, 5downward tilt, 6grounding, 1, 11LPB connector pin diagran, 7Mmounting bracketscrew assembly, 5Ppin diagramGPS connector, 9LPB connector, 7Sswitch requirement, 1INDEX
14 Installing and using the Expedience OSU

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