Corning Optical Communication LITENNA0LF0SB0 In Building Repeater User Manual Litenna Installation Guide

Corning Optical Communication Wireless In Building Repeater Litenna Installation Guide

Contents

Litenna Installation Guide

Installation GuideCopyright 1999Preliminary Document
LitennaTM Installation GuideFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 2Installation GuideFoxcom Wireless Ltd. Ofek One CenterBuilding BLod, Israel 71293Tel: +972-8-918-3888Fax: +972-8-918-3844Foxcom Wireless Inc.8150 Leesburg Pike, Suite 600Vienna, VA 22182Tel: 703-848-0200Fax: 703-848-0280website: www.foxcomwireless.comemail: sales@foxcomwireless.comThis manual contains PROPRIETARY and CONFIDENTIAL information ofFoxcom Wireless. Reproduction, release to any third party, or any other unauthorized use,of any information contained herein is expressly prohibited.
Litenna Installation Guide Table of ContentsFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 3Table of ContentsFront Chapter................................ ................................ ................................ ...................... 6Policy for Warranty and Repair................................ ................................ .......................... 6Reporting Defects................................ ................................ ................................ .............. 8Conventions................................ ................................ ................................ ....................... 8Precautions................................ ................................ ................................ ........................ 8Introduction to Litenna................................ ................................ ................................ ..... 10LitennaTM Models ................................ ................................ ................................ ............ 10Features................................ ................................ ................................ ........................... 11Product Drawings................................ ................................ ................................ ............ 12Required Equipment................................ ................................ ................................ ......... 15Test Procedures................................ ................................ ................................ ............... 16Installation................................ ................................ ................................ ......................... 20General Installation................................ ................................ ................................ .......... 20Fiber Installation................................ ................................ ................................ ..............21High Rise Installation................................ ................................ ................................ ....... 25Horizontal Layout Installation................................ ................................ .......................... 27Optical and RF Connections................................ ................................ ............................. 28Base Unit................................ ................................ ................................ ......................... 28Remote Hub Unit................................ ................................ ................................ ............. 28Alarm Monitoring ................................ ................................ ................................ ............. 29Power Supply for Litenna................................ ................................ ................................ . 30Option One................................ ................................ ................................ ......................31Option Two................................ ................................ ................................ ..................... 31Option Three................................ ................................ ................................ ................... 31Optical Test Procedure................................ ................................ ................................ ...... 32Fiberoptic Cable Test................................ ................................ ................................ ....... 32Fiberoptic Cable – Terms................................ ................................ ................................ . 32Foxcom Wireless System Characteristics................................ ................................ .......... 37Fiberoptic Cable Measurement Tests................................ ................................ ................ 37Optical Insertion Loss Measurement Test ................................ ................................ ........ 38Optical Return Loss Measurement Test................................ ................................ ............ 40Results................................ ................................ ................................ ............................. 41Summary ................................ ................................ ................................ ......................... 41Final Test................................ ................................ ................................ ........................... 42
Table of Contents Litenna Installation Guide4 Document No. 42-93-005-23D Foxcom Wireless Proprietary InformationBase Unit and Remote Hub Unit Connections................................ ................................ .. 42Maintenance / Mechanical Adjustment................................ ................................ ............ 43Troubleshooting................................ ................................ ................................ .................43Appendix A Link Measurements Form................................ ................................ ............ 45List of FiguresFigure 1 - Base Unit 4 ports................................ ................................ ................................ 12Figure 2 - Base Unit Front Panel 4 ports................................ ................................ .............. 12Figure 3 - Base Unit Back Panels 4 ports................................ ................................ ............. 12Figure 4 - Base Unit 8 ports................................ ................................ ................................ 13Figure 5 - Base Unit Front Panels 8 ports ................................ ................................ ............ 13Figure 6 - Base Unit Back Panels 8 ports................................ ................................ ............. 13Figure 7 - Remote Hub Unit ................................ ................................ ................................ 14Figure 8 - Remote Hub Unit Front Panel................................ ................................ .............. 14Figure 9 – Network Analyzer Setup Test................................ ................................ ............. 18Figure 10 – Spectrum Analyzer Setup Test................................ ................................ .......... 18Figure 11 – Uplink Network Test ................................ ................................ ........................ 19Figure 12 – Example: Fiber Installation................................ ................................ ................ 22Figure 13 – High Rise Installation................................ ................................ ........................ 26Figure 14 – Horizontal Layout Installation................................ ................................ ........... 27Figure 15 – EXAMPLE DC Power Supply in High Rise Installation ................................ .... 30Figure 16 – Fiberoptic Cable Structure ................................ ................................ ................ 33Figure 17 – Singlemode - Multimode Fibers................................ ................................ ......... 34Figure 18 – Two Point Test................................ ................................ ................................ . 38Figure 19 – Single Point Test................................ ................................ ............................... 39Figure 20 – Optical Return Loss Measurement ................................ ................................ .... 40
Litenna Installation Guide Table of ContentsFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 5List of TablesTable 1 – LitennaTM Models................................ ................................ ................................ . 10Table 2 – Required Equipment List................................ ................................ ...................... 15Table 3 - Fiber Installation Parts List ................................ ................................ ................... 24Table 4 - Fiber Installation Labor List................................ ................................ .................. 25Table 5 - 25 Pin Alarm Pinouts................................ ................................ ............................ 29Table 6 - Power Supply Options ................................ ................................ .......................... 31Table 7 - Fiberoptic Cable Test Results................................ ................................ ................ 41Table 8 - Optical LED States................................ ................................ ............................... 43Table 9 - Link Measurement Table................................ ................................ ....................... 45
Front Chapter Litenna Installation Guide6 Document No. 42-93-005-23D Foxcom Wireless Proprietary InformationFront ChapterPolicy for Warranty and RepairFoxcom Wireless tests and inspects all its products to verify their quality and reliability.Foxcom Wireless uses every reasonable precaution to ensure that each unit meets theirdeclared specifications before shipment. Customers should advise their incominginspection, assembly, and test personnel about the precautions required in handling andtesting our products. Many of these precautions can be found in this manual.The products are covered by the following warranties:1) General Warranty Foxcom Wireless warrants to the original purchaser all standard products sold byFoxcom Wireless to be free of defects in material and workmanship for one (1)year from date of shipment from Foxcom Wireless. During the warranty period,Foxcom Wireless will repair or replace any product that Foxcom Wireless provesto be defective. This warranty does not apply to any product which has beensubject to alteration, abuse, improper installation or application, accident,electrical or environmental over-stress, negligence in use, storage, transportationor handling.2) Specific Product Warranty Instructions All Foxcom Wireless products are warranted against defects in workmanship,materials and construction, and to no further extent. Any claim for repair orreplacement of units found to be defective on incoming inspection by a customermust be made within 30 days of receipt of shipment, or within 30 days ofdiscovery of a defect within the warranty period. This warranty is the only warranty made by Foxcom Wireless and is in lieu of allother warranties, expressed or implied. Foxcom Wireless sales agents orrepresentatives are not authorized to make commitments on warranty returns.
Litenna Installation Guide Front ChapterFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 73) ReturnsIn the event that it is necessary to return any product against above warranty, thefollowing procedure shall be followed:a. Return authorization is to be received from Foxcom Wireless prior toreturning any unit. Advise Foxcom Wireless of the model, serial number,and discrepancy. The unit may then be forwarded to Foxcom Wireless,transportation prepaid. Devices returned collect or without authorizationmay not be accepted.b. Prior to repair, Foxcom Wireless will advise the customer of our testresults and any charges for repairing customer-caused problems or out-of-warranty conditions etc.c. Repaired products are warranted for the balance of the original warrantyperiod, or at least 90 days from date of shipment.4) Limitations of LiabilitiesFoxcom Wireless's liability on any claim, of any kind, including negligence for any loss ordamage arising from, connected with, or resulting from the purchase order, contract, quotation,or from the performance or breach thereof, or from the design, manufacture, sale, delivery,installation, inspection, operation or use of any equipment covered by or furnished under thiscontact, shall in no case exceed the purchase price of the device which gives rise to the claim.EXCEPT AS EXPRESSLY PROVIDED HEREIN, FOXCOM WIRELESS MAKES NOWARRANTY, EXPRESSED OR IMPLIED, WITH RESPECT TO ANY GOODS, PARTSAND SERVICES PROVIDED IN CONNECTION WITH THIS AGREEMENTINCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OFMERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.FOXCOM WIRELESS SHALL NOT BE LIABLE FOR ANY OTHER DAMAGEINCLUDING, BUT NOT LIMITED TO, INDIRECT, SPECIAL OR CONSEQUENTIALDAMAGES ARISING OUT OF OR IN CONNECTION WITH FURNISHING OFGOODS, PARTS AND SERVICE HEREUNDER, OR THE PERFORMANCE, USE OF,OR INABILITY TO USE THE GOODS, PARTS AND SERVICE.
Front Chapter Litenna Installation Guide8 Document No. 42-93-005-23D Foxcom Wireless Proprietary InformationReporting DefectsThe units were inspected before shipment and found to be free of mechanical andelectrical defects.Examine the units for any damage which may have been caused in transit. If damage isdiscovered, file a claim with the freight carrier immediately. Notify Foxcom Wireless assoon as possible.Refer to Policy for Warranty and Repair for further details.NoteKeep all packing material until you have completed the inspection.ConventionsIn this manual the following special formats are used:NoteNotes contain information detailing the current topic.CAUTIONCautions contain information regarding situations or materials which coulddamage your product.WARNINGWARNINGS CONTAIN INFORMATION REGARDING DANGEROUSFUNCTIONS.PrecautionsPersonal SafetyWARNINGAPPLYING POWER TO THE BASE UNIT AND REMOTE HUB UNITWILL CREATE A LASER ENERGY SOURCE OPERATING IN CLASS I ASDEFINED BY IEC 825-1. USE EITHER AN INFRARED VIEWER,OPTICAL POWER METER OR FLUORESCENT SCREEN FOR OPTICALOUTPUT VERIFICATION.
Litenna Installation Guide Front ChapterFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 9Equipment SafetyTo avoid damaging your product, please observe the following:1. Always keep the optical connector covered. Use the fiberoptic cable or aprotective cover. Do not allow any dirt and/or foreign material to get on theoptical connector bulkheads.2. The optical fiber jumper cable bend radius is 3 cm. Smaller radii can causeexcessive optical loss and/or fiber breakage.
Introduction to Litenna Litenna Installation Guide10 Document No. 42-93-005-23D Foxcom Wireless Proprietary InformationIntroduction to LitennaThe LitennaTM, a high performance fiberoptic In-Building RF Distribution System, allows cellular & PCSservices to be extended into shadow areas. With LitennaTM services can be cost-effectively broadened into BTS,micro and pico cell markets, such as airports, buildings, underground parking and shopping malls. TheLitennaTM system means mobile communication that works everywhere, and satisfied customers getting theservice that they demand.The LitennaTM products can accommodate a plurality of services and transmission standards.LitennaTM ModelsLitennaTM products come in various models, each model covering a different frequencyspectrum and standard.Table 1 – LitennaTM ModelsProduct Frequency Range ServiceUplink DownlinkSingle Band Family9A110 824-849 869-894 AMPS/TDMA 8009A112 806-824 851-869 LMR 8009A130 824-849 869-894 CDMA 8009A220 890-915 935-960 GSM 9009A320 1710-1785 1805-1880 GSM 18009A330 1710-1785 1805-1880 CDMA 18009A410 1850-1910 1930-1990 TDMA 19009A420 1850-1910 1930-1990 GSM 19009A430 1850-1910 1930-1990 CDMA 1900Dual Band Family9B320 890-9151710-1785 935-9601805-1880 Dual Band GSM 900/1800
Litenna Installation Guide Introduction to LitennaFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 11FeaturesThe LitennaTM series features the following:1. Wide DC input range.2. Slow start optical power control protects the laser from DC transients uponturn-on.3. Alarm Interface with open collector and dry contact alarms – the alarm loopback isactivated when there is a broken or faulty optical fiber, or no power in system.4. LEDs that indicate status of individual optical links and sets of links.
Introduction to Litenna Litenna Installation Guide12 Document No. 42-93-005-23D Foxcom Wireless Proprietary InformationProduct DrawingsThe following drawings show sample front and rear panels of the Litenna™ units.Figure 1 - Base Unit 4 portsFigure 2 - Base Unit Front Panel 4 portsFigure 3 - Base Unit Back Panels 4 portsPin # 1Pin # 14Pin # 13Pin # 25Coax Input from Cellular Headend (Microcell)Coax Outputs to Cellular Headend (Microcell)Optical Diode Input from RHULaser Output connection to RHU
Litenna Installation Guide Introduction to LitennaFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 13Figure 4 - Base Unit 8 portsFigure 5 - Base Unit Front Panels 8 portsFigure 6 - Base Unit Back Panels 8 ports
Introduction to Litenna Litenna Installation Guide14 Document No. 42-93-005-23D Foxcom Wireless Proprietary InformationFigure 7 - Remote Hub UnitTO BASEFROM BASEANTENNA PORTS 18-48V DCPOWER INPUTO PT. D CPORT 1 PORT 2 PORT 3 PORT 4External Cellular AntennaDC PowerOptical Input from Base UnitLaser Output to Base UnitFigure 8 - Remote Hub Unit Front PanelSMA or N-Type connectorsAvailable
Litenna Installation Guide Required EquipmentFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 15Required EquipmentThe following describes the equipment required for testing the system at setup.Table 2 – Required Equipment ListRequired Setup Equipment QuantityHP8753C Network Analyzer or equivalent 1HP85046A S Parameter test set or equivalent 1HP8594E Spectrum Analyzer or equivalent 1Power supply 18/48 @ 1A 1Signal generator HP8648B or equivalent 2Amplifier Mini-circuit ZKL-2 or equivalent 1Digital Multi-meter 1RF Combiner Mini-Circuit ZAPD-21 or equivalent withN connectors 1High-grade 50-ohm phase matched cables:N to N cablesN to SMA cables (in N remote type)SMA to SMA cables (in SMA remote type)423Optical power meter (1310 nm) for minimum 3 mW 1Singlemode duplex fiberoptic cable with SC/APCconnectors 3mSinglemode fiberoptic cable SC/APC connectors 3mCalibration kit, including Through (N-female to N-female) Short (N-female) 50 ohm (N-female)
Required Equipment Litenna Installation Guide16 Document No. 42-93-005-23D Foxcom Wireless Proprietary InformationTest ProceduresThis section explains the following test procedures:• Pre RF Test• Flatness Test• Gain/IP3 Test• Uplink Network Test In order to carry out the tests, the following connections need to be made.1. Connect the Base Unit optical output to the RHU optical input via fiberoptic cable.2. Connect power to all units being tested (18V-48V DC). Use the relevant setup for every test.Pre RF Test To carry out the Pre RF Test, the following procedure needs to be carried out.1. Make sure all DC LEDs are lit on both units.2. Measure Tx optical output power for all lasers.Output power should be 1.5-2.4mW (with optical power meter).3. On the RHU, Make sure that the optical LED is lit.4. On the BU, make sure the Rx optical LEDs are lit.Flatness Test To carry out the Flatness Test, the following procedure needs to be carried out.1. Connect the Network Analyzer to the designated Base Unit.On the Network Analyzer, Base Unit connects to port 2.On the Network Analyzer RHU connects to port 1 (see Figure 9).2. After calibrating the network, set Network Analyzer to: Measure S21 Format Log Scale 1db/div3. Apply with the required F1 and F2 should be according to Product Spec.4. Measure the difference between the highest and the lowest signal point,which should be as specified in the data sheet.
Litenna Installation Guide Required EquipmentFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 17Gain/IP3 Test To carry out the Gain/IP3 Test, the following procedure needs to be carried out.1. Set the 2 tone signal from the 2 signal generators.RF signals F1 and F2 should be according to Product Spec.2. Combine the signals with ZAPD-21 combiner or equivalent.3. Connect the 2-tone signal to the input of the base (see Figure 10).4. Set Spectrum Analyzer to: Video BW 10khz RBW 100khz Attenuation 20db Span 30Mhz Center freq. Refer toProduct Spec. Ref level 10dbm5. Connect RF cable from the RHU output to the Spectrum Analyzer.6. Measure output Gain/IP3 from all test RHUs DownLink outputs.7. IP3 is determine by:IP3= power tone + (power tone – powerM3)/2.
Required Equipment Litenna Installation Guide18 Document No. 42-93-005-23D Foxcom Wireless Proprietary Information Base Unit Remot Hub UnitNetwork AnalyzerPort 2 Port 1RF In RF OutOpt Out Opt In18V 18V Figure 9 – Network Analyzer Setup Test Remote Hub UnitBase UnitRF CombinerSG1SpectrumAnalyzerSG218V 18VRFIn OptOut OptIn RFOutDCInDCIn Figure 10 – Spectrum Analyzer Setup Test
Litenna Installation Guide Required EquipmentFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 19Uplink Network Test To carry out the Noise Floor test, the following procedure needs to be carried out. 1. Connect the Spectrum Analyzer to the Base Unit uplink port.Connect 50ohm terminators to the RHU ports, and to all Base Unit uplinkports except for the tested port (see Figure 11). 2. Extra amplification (25db) is applied between Base Unit and SpectrumAnalyzer in order to measure the noise floor. 3. Set Spectrum Analyzer to: Video BW 300hz RBW 1khz Attenuation 0db Span 0hz Center freq. Refer toProduct Spec. Ref level -50dbm Marker noise ON 4. The noise figure is formulated as: -174 + Gsystem + noise floor (On the RHU, all unused ports must be terminated with 50ohm load.) Remote Hub UnitBase UnitSpectrumAnalyzer18V18VRFIn OptOut OptInRFOutDCInDCInUplink18..AMP.. Figure 11 – Uplink Network Test
Installation Litenna Installation Guide20 Document No. 42-93-005-23D Foxcom Wireless Proprietary InformationInstallation The following sections describe the LitennaTM installation.• General Installation.• Fiber Installation.• Hi Rise Installation.• Horizontal Layout Installation.General Installation The LitennaTM components need to be set up, followed by performance verificationbefore installing the system. Foxcom Wireless suggests that a 19” rack-mountable SpliceTray be used at the Base Unit to facilitate optical fiber splicing. In the rack, the SpliceTray is mounted above or below the Base Unit (depending on direction of the incomingcables). Set up procedures for the LitennaTM Base and Remote units are for the followinginstallations:• High rise installation.• Horizontal Layout installation. For both installations, setting up the LitennaTM Base and Remote units consists of thefollowing steps:1. Determine antenna placement by system engineer.2. Pull composite cable or separate fiber and copper cables through building.3. Install Base Unit in 19” rack.4. Install Splice Tray for Base Unit in 19” rack.5. Install patch panel cabinet with SC/APC connectors.6. Fiber contractor splices fiber cable with SC/APC to connectorized pigtails.7. Connect Microcell to Base Unit.8. Connect Remote Hub Unit to base unit through fiber.9. Connect Antennas to Remote Hub Unit.10. Connect power supply to base unit and remote refer to power planning.
Litenna Installation Guide InstallationFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 21Fiber Installation The following procedure describes the process for setting up fiberoptic cable for thesystem (see Figure 12).1. Pull fiberoptic cable and DC cable through building structure2. Install splice tray in 19” rack near Base Unit.3. Near Base Unit, install patch panel cabinet (SC/APC connectors) for fiberopticcable connections.4. Connect pigtail between splice tray and patch panel cabinet.5. Connect SC/APC jumpers between the Base Unit and the patch panel.6. Install splice box near RHU.7. Connect fiberoptic cable to splice box and pigtails to RHU.
Installation Litenna Installation Guide22 Document No. 42-93-005-23D Foxcom Wireless Proprietary Information patch panelsplice trayPigTailJumpersspliceboxspliceboxCommunications Room Figure 12 – Example: Fiber Installation
Litenna Installation Guide InstallationFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 23Fiberoptic Cable Before connecting the cable:1. Wipe the connector with a lint-free cotton cloth.2. Note the polarity key of the optical connector before inserting.To connect the cable: SC/APC 1. Line Up the Polarity Key. 2. Insert the connector.
Installation Litenna Installation Guide24 Document No. 42-93-005-23D Foxcom Wireless Proprietary InformationFiber Installation Parts List The following parts are needed for setting up the LitennaTM Base and Remote HubUnits. A fiber contractor handles cable splicing in order to connect the units. Thefiber contractor needs to use the parts list from Table 3 to arrange all equipmentnecessary for setting up and installing the LitennaTM. Table 3 - Fiber Installation Parts List The following tables refer to a 46 floor building. Equipment Description Quantity Comment Coax cable (per 1m) Connect RHU to antenna. As needed Antenna As planned Optical cable2 x 50(fibers) Optic cable for shortdistance & protectedenvironments (tight buffertype). Total=500m Patch panel cabinet withSC/APC connector. Connect jumpers to baseand pigtails to splice tray. 2 Splice box Connects optic cable fromCabinet and pigtails toRHU. 15 1 per 3 floors. Splice tray Tray-1*50 connects cableoptic and pigtails near baseunit. 2 5m optical jumpers withSC/APC connector. Connect patch panel tobase unit. 92 5m Pigtail with SC/APCconnectors (B) Connect patch panel andsplice tray. 92 15mPigtail with SC/APC connectors(R) Connects RHU and splicebox. 92 Electricity cables (per 1m) Delivers power to units. According tolength. Electricity ducts (per 1m) Ducts for moving cablesthough building. According tothe length. If needed Coax connectors n-type Cable connectors as needed
Litenna Installation Guide InstallationFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 25 Table 4 - Fiber Installation Labor List Labor Description Quantity Comment Installing splice box +splicing fibers Installing the box and openingfibers at RHU. 92 Installing patch panelcabinet + splicing fibers Installation of the box andopening fibers at base. 92 Installing FoxcomWireless equipment Installing Base Units andRHUs. Installing optic cable (per 1m) Pull and install optic cablethrough building. Installing coax cable Install cable on floors Installing electricity ducts(per 1m) Install cables through ducts inbuilding. If needed Installing electricitycables Install cables through ducts inbuilding. System checking andreport. Trouble shooting and walktest. 1day High Rise Installation In high rise installation all Base Units are placed in the same location. An RHU islocated on every floor. The fiberoptic cable runs from Base Unit to every floor andterminates at the splice box located near each RHU. From the splice box, the fiberopticcable connects to the associated RHU.
Installation Litenna Installation Guide26 Document No. 42-93-005-23D Foxcom Wireless Proprietary Information RHUBaseUnit 1BaseUnit 5BaseUnit 6RHURHURHURHURHURHURHURHURHURHURHUSplice BoxPatch PanelSplice Tra y Figure 13 – High Rise Installation
Litenna Installation Guide InstallationFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 27Horizontal Layout Installation In a horizontal layout installation, one fiberoptic cable connects the Base Unit to everyinstalled RHU. The fiberoptic cable terminates at a splice box located near the RHU andfrom the splice box connects to the associated RHU. CELLSITE200'200'80'120'120' 60'45'65'120'120'120' 80'100' 140'75'120'180'210'60'80'140'100'120'90'NOT IN SCALERHURHURHURHUFBACEDomni antennadirectional antennaGIHLitennaTM Remote Hub UnitBUBU LitennaTM Base UnitCoax Cable Figure 14 – Horizontal Layout Installation
Optical and RF Connections Litenna Installation Guide28 Document No. 42-93-005-23D Foxcom Wireless Proprietary InformationOptical and RF Connections The following sections describe the LitennaTM optical and RF connections.• Base Unit.• Remote Hub Unit.Base Unit1. For Downlink, attach RF connector from the BTS to the Base Unit, whilemaintaining the stated power levels as listed in the product specifications. (Wherethe need exists, a combiner, attenuator, or duplexer can be installed.)2. For Uplink, attach RF connector from the Base Unit to the BTS. The number ofBTS uplink ports needs to be considered for making this connection. The amountof sectors determine the amount of combining.3. Connect the fiberoptic cables from the Base Unit to the RHUs through the patchpanel cabinet.4. Connect the power supply to the units, according to power design planning.Remote Hub Unit1. For Downlink, connect the fiberoptic cable coming from the Base Unit port to thecorresponding Remote Hub Unit port.2. Connect the Remote Hub Unit to antennas according to the RF engineers design.(up to 4 antennas per RHU).3. For Uplink, connect the fiberoptic cable from the Remote Hub Unit to the uplinkport that connects to the Base Unit.4. Connect the power supply to each RHU according to power design planning.
Litenna Installation Guide Alarm MonitoringFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 29Alarm Monitoring The BU has a 25 pin D-type connector that is connected to 8 dry contact relays (B8U). Eachof the relays indicates the status of the link between the BU and one of the RHUs. Thiscapability provides the status of the optical communications. The relay connections on the 25pin D-type connector can be connected directly to the BTS alarm relays and can be controlledfrom the remote end. In order to transmit the Litenna system as a “major alarm”, all dry contact pins need to beconnected in a serial (cascade) formation, for Normally Closed alarm. All dry contacts need to be connected in parallel formation, for Normally Open alarm.Table 5 - 25 Pin Alarm PinoutsPin Type of Alarm Port1 Dry Contact 4 12 Dry Contact 4 23 Open Collector 44 Dry Contact 1 15 Dry Contact 1 26 Open Collector 17 Dry Contact 2 18 Dry Contact 2 29 Open Collector 210 Dry Contact 3 111 Dry Contact 3 212 Open Collector 313 Dry Contact 8 114 Dry Contact 8 215 Open Collector 816 Dry Contact 5 117 Dry Contact 5 218 Open Collector 519 Dry Contact 6 120 Dry Contact 6 221 Open Collector 622 Dry Contact 7 123 Dry Contact 7 224 Open Collector 725 - -
Power Supply for Litenna Litenna Installation Guide30 Document No. 42-93-005-23D Foxcom Wireless Proprietary InformationPower Supply for Litenna The power supplies to drive the Litenna can be purchased from FoxcomWireless. Thepower supplies will be installed into a rack and will provide power for both the BaseUnits and Remote Hub Units.100W/ 48VDC AC/DC converters provide power for the Litenna system as shown inthe example in Figure 15. AC/DC2AC/DC3AC/DC6RHU 48AC/DC1BU 1 BU 648VDC 48VDC 48VDC 48VDCBASESTATION0.9 Diameter0.9 Diameter0.9 Diameter1.6 Diameter220VAC 220VAC 220VAC 220VACRHU 39RHU 18RHU 10RHU 9RHU 11.6 Diameter1.6 Diameter Figure 15 – EXAMPLE DC Power Supply in High Rise Installation
Litenna Installation Guide Power Supply for LitennaFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 31 The power supply that drives the Litenna™ system can be purchased from Foxcom Wireless.Four power supply options are available.Option One In this option the BU is connected to the power supply via electrical cables. In order topower the RHU from the Power supply, two copper electrical wires running through thebuilding (separately from the fiberoptic cables) supply power to each RHU in parallel.For this configuration, electrical power calculations need to be made. This option isshown in Figure 15.Option Two This power supply is located near the BU. The Power supply will drive the BU andRHUs. To provide power, the BU is connected to the power supply via electrical cables.To supply power to the RHU, a composite cable is used (composite cable contains twofiber cables and two copper electrical wires in the same jacket). For this configuration,electrical power calculations need to be made. See example in Figure 14.Option Three In this option the power supply type is a stand alone configuration. Power for both theBU and RHUs will be supplied separately. In this configuration each unit will be co-located with a power supply. This will not require long electrical cable runs. Table 6 - Power Supply Options Materials Model Stand alone 15W LPS-15-48 Stand alone 100W LPS-100-48 Rackmount 100W LPS2-100-48 Rackmount 300W LPS2-300-48
Optical Test Procedure Litenna Installation Guide32 Document No. 42-93-005-23D Foxcom Wireless Proprietary InformationOptical Test Procedure This section describes the methods applied to test fiberoptic cable’s optical insertion loss and return loss.Fiberoptic Cable Test Due to the extended distances that analog signal transmissions travel on cable, the majorchallenge is to determine the status of the cable. In order to determine that the cables are functioning, technical personnel need toperform optical power tests. The optical power tests covered in this document are:• Optical insertion loss measurement test• Optical return loss measurement test In order to explain the testing procedures, the terms related to these tests need to beexplained.Fiberoptic Cable – Terms Fiberoptic cable is produced in a variety of formats with different characteristics. Thefollowing terms define the various aspects of fiberoptic cable:• Fiberoptic cable♦ Jacket♦ Buffer♦ Fiber• Optical fiber♦ Core♦ Clad♦ Singlemode♦ Multimode• Fiberoptic connection♦ Splice➤ Fusion➤ Mechanical♦ Connector• Bending Loss♦ Minimum bending radius• Coupler
Litenna Installation Guide Optical Test ProcedureFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 33Optical Fiber Fiberoptic cable is described by the amount of fibers contained within. The cable described by the following terms:➤ Glass➤ Buffer➤ JacketGlass Glass is the middle fiber in the cable. The data sent over the cable travels throughthe glass.Buffer The buffer is the plastic coating that covers the fiberoptic cable. The bufferprotects the glass from moisture and other damage.Jacket The jacket covers the buffer, providing greater protection to the glass. The fiber consists of:➤ Core➤ Clad The central part of a fiber is known as the core, and the material surrounding thecore is know as the clad. The clad has a lower index of refraction than the core,allowing light to be completely reflected off the surface between the core and theclad. As a result, propagated light remains entirely within the core. The cross-section of the cable is expressed as the core diameter followed by the claddiameter. For example, a 9/125 fiber has a core diameter of 9µm and a claddiameter of 125µm.  Figure 16 – Fiberoptic Cable Structure 9µm 125µm
Optical Test Procedure Litenna Installation Guide34 Document No. 42-93-005-23D Foxcom Wireless Proprietary Information The cables are available in two different modes, each with different propagationproperties: Property Core Clad Attenuation Singlemode 9 µm 125 µm .38 dB/Km Multimode 50 µm 125 µm 1 dB/Km Multimode 62.5 µm 125 µm λ19 125Singlemodefiberλ150 125Multimode fiberλ2λ3@1310nm (For illustration only) Figure 17 – Singlemode - Multimode Fibers
Litenna Installation Guide Optical Test ProcedureFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 35Connecting Fiberoptic Cable The following are needed in order to carry out a fiberoptic connection:➤ Splice➤ ConnectorSplice A splice consists of cutting the fiberoptic cable across the cable’s diameter andcombining the opening with another fiberoptic cable. A splice can be carried out in the following methods: Fusion – following the splice, the cables are warmed and the two fiberoptic cablesare melted together. Mechanical – following the splice, a hard connection is made between the twofiberoptic cables.Connector In order to add or connect additional fiberoptic cable, a connector is used to makethe connection. There are several types of connectors:➤ FC/PC➤ SC/PC➤ SC/APC (used by Litenna)Fiberoptic Cable Bending Loss When the cable has bends or interior irregularities, then the optical signal becomesweaker, known as Bending Loss. The sharper the bend, the higher the loss. Such losses increase the cable’sattenuation. Note When installing fiberoptic cable, the minimum bending radius needs to be notedin order to prevent excessive bending of the cable, causing additional loss.
Optical Test Procedure Litenna Installation Guide36 Document No. 42-93-005-23D Foxcom Wireless Proprietary Information Coupler Light from the cable can be split or combined, using a Coupler. Couplers splitlight with minimal loss, from one to two fibers or combine light from two fibersinto a single fiber.
Litenna Installation Guide Optical Test ProcedureFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 37Foxcom Wireless System Characteristics The Litenna™ system consists of the following characteristics:• Singlemode fiber• Wavelength 1310nmFiberoptic Cable Measurement Tests Cable can be measured through several procedures. This document describes thefollowing tests:• Optical insertion loss measurement test• Optical return loss measurement test These tests are intended to be performed by technical personnel that deal with FoxcomWireless systems. Other equipment can be used to perform these tests, however the results have to be thesame as will appear in the fiberoptic cable test results table (Table 7), at the end of thisdocument. The insertion loss measurement determines whether the optical signal power travellingthe cable length is strong enough to be received by the photo diode, in the receiver. Following the completion of the insertion loss test, the return loss test determines theoptical signal power that returns to the laser. The return power affects the laser,changing the laser’s base current.Test Equipment In order to perform these tests, the following equipment is necessary:➤ Light source (for wavelength 1310nm , 0dbm)➤ Optical power meter➤ Optical coupler (hosed and connectorized)➤ Fiberoptic jumper➤ Adapter parts for the cable connectors For information about equipment suppliers, contact Foxcom Wireless.
Optical Test Procedure Litenna Installation Guide38 Document No. 42-93-005-23D Foxcom Wireless Proprietary InformationOptical Insertion Loss Measurement Test The optical insertion loss measurement tests the attenuation of the cable. The insertionloss’ value should be minimal and remain in scale to 0.4dB/Km. The insertion loss measurement can be performed in two methods:• Two point test• Single point testMethod #1: Two Point TestConnection description: Light source connected at one end of the cable and anoptical power meter at the other end.LightsourceOpticalpowermeterFigure 18 – Two Point Test1. Connect light source directly to the optical power meter.2. Measure light source signal power, verifying power of 0dBm.3. Connect light source to cable end.4. Connect optical power meter to cable at other end.5. Measure light source signal power using the optical power meter.6. Calculate the difference between two signals (dB):(Insertion loss)dB = (Light source signal at one end)dBm – (Measured signal at other end)dBm
Litenna Installation Guide Optical Test ProcedureFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 39Method #2: Single Point TestConnection description: This method assumes that there are two parallel fibers onthe path to be tested. Connect fiber jumper at end of the cable being tested toanother parallel cable. Connect the light source, optical power meter and opticaljumper as shown in Figure 19.This measurement can test two cables simultaneously.LightsourceOpticalpowermeterConnectorFiber optic jumperFigure 19 – Single Point Test1. Use optic jumper to connect the two cables.2. Connect light source directly to the optical power meter.3. Measure the power of light source signal , verify power of 0dBm.4. Connect a light source and optical power meter to one end of each cable.5. Measure the power of the signal.6. Calculate the difference between the two signals in dBOther Test EquipmentThe optical insertion loss measurement test can be performed with moresophisticated measurement equipment.For information on other types of test equipment contact Foxcom Wireless.(Insertion loss)dB =(Light source signal)dBm– (Measure signal)dBm
Optical Test Procedure Litenna Installation Guide40 Document No. 42-93-005-23D Foxcom Wireless Proprietary InformationOptical Return Loss Measurement TestConnection description: Connect a light source and optical power to the inputs. If thecoupler has one output, connect the tested cable to this output. If the coupler has twooutputs make a pigtail at the second output.LightsourceOpticalpowermeterIN OUT(pigtail)Cable Being Tested2134"Optical Terminator"Optical CouplerFigure 20 – Optical Return Loss MeasurementMeasurement ProcedureMeasuring Power Input To Cable Being Tested1. Verify that light source power is at 0dBm.2. Connect a light source to connector #1.3. Connect optical power meter to connector #3.4. Measure signal power (P3), power should be approximately –4dBm.Measuring Coupler Power Loss1. Move power meter from connector #3 to connector #2.2. Move light source from connector #1 to connector #3.3. Measure power loss of coupler (Lc).
Litenna Installation Guide Optical Test ProcedureFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 41Measuring Return Power1. Move light source from connector #3 to connector #1.2. Connect cable being tested to output connector #3.3. If coupler has two outputs, then make a pigtail at second output.4. If cable is longer than 100 meter, then cable needs to be isolated.To isolate cable:a) Find place near test point where winding the cable into a pigtail is possible.b) Make pigtail.5. If cable is shorter than 100 meter, then verify that cable is disconnected at end.6. Measure the return light power (P2), connector #2.Calculating Return LossCalculate the difference between the signals in dB.(Return loss)dB = (P2)dBm – (P3)dBm + (Lc)dBResultsThe following table is filled in by technical personnel testing the fiberoptic cables.Table 7 - Fiberoptic Cable Test ResultsTest Measurement Pass Range Pass/FailOptical Insertion loss <0.5 dB/KmOptical return loss < -50 dBSummaryIf the fiber fails in the optical insertion loss or optical return loss tests, then theconnector needs to be cleaned. Connector cleaning is carried out according to astandard cleaning procedure. Following cleaning, the fiber needs to be tested again. Ifthe failure continues in the fiber following cleaning, then the technical personnel need torefer to the fiberoptic cable manufacturer’s troubleshooting guide.If the fiber passes the optical insertion loss and optical return loss tests, then the testedfiberoptic cable is considered suitable for use with Foxcom Wireless equipment.
Final Test Litenna Installation Guide42 Document No. 42-93-005-23D Foxcom Wireless Proprietary InformationFinal TestThe following checklist should be consulted when reviewing the system’s setup.✔ Check power supplies.✔ Check that all LEDs are lit.✔ Carry out Walk Test, checking all antenna locations, and checking the RSSI power levelsat those locations.Base Unit and Remote Hub Unit ConnectionsWhen the LitennaTM is being installed the LEDs on the units can verify that the opticalfibers are performing correctly, and that proper connections have been made.Foxcom Wireless recommends checking the status of all connections in the LitennaTMsystem in order to make sure that the installation was carried out correctly. Verificationis done by checking the LEDs on the Base and Remote Hub Units. See Table 8 for anexplanation of the possible optical LED performance states and how to deal withproblems.NoteWhen the RHU not receiving light signal from Base Unit, power to laser isdisconnected.
Litenna Installation Guide Maintenance / Mechanical AdjustmentFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 43Maintenance / Mechanical AdjustmentNo maintenance required.No fine tuning required.TroubleshootingThe following table should be consulted to verify proper operations of all optical connections.Table 8 - Optical LED StatesOpticalOut OpticalInBaseUnitLaserBaseUnitLinkRHU State Reasons Troubleshooting+ + + Both units performing.+ - + Base Unit sending lightand Base Unit notreceiving signal fromRHU.1. Defective fiberconnectionfrom RHU toBase Unit.1. Check connection from RHUto Base. Check fiber forbreak or crimp test.2. Failure inRHU. 2. Contact Customer Service atFoxcom Wireless.+ - - RHU not receivingsignal from Base Unit. Defective fiberconnection fromBase Unit to RHU.Check connections To RHU.Switch the cable connections, tomake sure connected properly.- - - System not active. Power not reachingany unit. Check power connections.If LEDs on, then LEDS havefailed at the Base Unit.+ Optical connection performing correctly (Optical LED lit).- Optical connection not performing correctly (Optical LED not lit).
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Litenna Installation Guide Appendix A Link Measurements FormFoxcom Wireless Proprietary Information Document No. 42-93-005-23D 45Appendix A Link Measurements FormTo smoothly carry out link measurements, use the table appears below. All relevantparameters are listed. This table aids system evaluation and provides necessary feedback toFoxcom Wireless.The following issues should be taken into account:• Measure the optical power for every link with an optical meter and light source, accordingto the number of links or RHUs.• Measure the typical signal strength (RSSI) for every installed antennas.• Check coax cable connection between RHU and every installed antenna.Table 9 - Link Measurement TableSystemLinkPowerMeter(mW)RSSI (dBm) Coax Cable (OK/Fail)Ant1 Ant2 Ant3 Ant4 Ant1 Ant2 Ant3 Ant4RHU1RHU2RHU3RHU4••••••Return this form to Foxcom Wireless (fax: 972-8-918-3844).

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