YDI Wireless LUC2400E Rooftop Fixed Direct Sequence Transmission System User Manual Cover

YDI Wireless Rooftop Fixed Direct Sequence Transmission System Cover

Contents

Users and Operators Manual

Model AMP2440 REMOTE BI-DIRECTIONAL POWER AMPLIFIERS FOR 2.4 GHz Installation and Operation Manual  Version 2.0 May 2000 MODEL AMP2440POLE MOUNTED BI-DIRECTIONALPOWER AMPLIFIERS FOR 2.4 GHzInstallation andOperation ManualVer 2.2 Dec 2000Young Design Inc. 146B Hillwood Ave. Falls Church, VA 22046Tel: (703) 237-9090 Fax: (703) 237-9092http://www.ydi.com;our One Shop For Complete High-Speed Wireless Internet Systems!!!www.ydi.comorContact Our Sales DepartmentToll Free at:888-297-9090703-237-9090or call
Limited WarrantyYoung Design, Inc. (YDI) warrants that your device is free of defects in material andworkmanship for a period of one year after initial purchase. YDI will, in this period of time,repair or replace, any YDI product returned to the factory, freight prepaid.The YDI warranty covers repairs or replacement (at YDI’s option) of the product only. YDI isnot responsible for the cost of removal, reinstallation, or shipping to the place of repair. YDIdoes not extend or modify its warranty period as a result of repair or replacement.YDI reserves the right to void a warranty and/or make reasonable charges for the repair of aunit if the warranty seal is broken or the unit displays evidence of misuse, abuse, ortampering.YDI is not responsible for damage to any other equipment or property, or any otherconsequential or incidental damages of any kind, whether based on contract, negligence, orstrict liability. Maximum liability shall not in any case exceed the purchase price of the unit.Warranties give you (the buyer) specific legal rights. You may also have other rights thatvary from state to state. This warranty is only extended to purchases made in the UnitedStates of America or its possessions.Warranty NoticeThe AMP2440 warranty is null and void if any of the following occurs:1. The amplifier is opened2. The antenna connections are not properly waterproofed3. The amplifier is operated with no antenna attached4. Improper connectors are used5. The amplifier is mounted outdoors with the connectors facing any direction except downwardsThis device complies with part 15 of the FCC rules. Operation is subject to thefollowing two conditions: (1) This device may not cause harmful interference, and(2) this device must accept any interference received, including interference thatmay cause undesired operation.© 2000 Young Design, Inc. All Rights Reserved. No part or parts of this document may bereproduced, translated, stored in any electronic retrieval system, or transmitted, in any formor by any means, electronic, mechanical, photocopying, recording, or otherwise, without theprior written permission of Young Design, Inc.To see a complete line of our High SpeedWireless Data products, visit our web site at:www.ydi.comor call our Sales Office at:1-888-297-9090
TABLE OF CONTENTS1. DESCRIPTION............................................................................................................12. AMPLIFIER FEATURES............................................................................................12.1 GENERAL SPECIFICATIONS...............................................................................23. AMPLIFIER KIT..........................................................................................................34. INSTALLATION AND CABLING INSTRUCTIONS...........................................35. AMPLIFIER CONNECTIONS AND INDICATORS.............................................56. DC POWER INJECTOR OPERATION..................................................................57. DC POWER INJECTOR CONNECTIONS AND INDICATORS.......................68. POWER SUPPLY........................................................................................................69. OPERATION................................................................................................................7TABLE A - CONVERSIONS FROM DBM TO WATTS...........................................8TABLE B - TYPICAL CABLE ATTENUATION VALUES........................................8TABLE C - TYPICAL AMPLIFIER INSTALLATION DETAILS.............................9APPENDIX A: CALCULATING POWER..................................................................10APPENDIX B: FCC PART 15 CERTIFIED SYSTEMS............................................11Professional Installation Required The amplifier and antennas used must be professionally installed by experienced antennainstallation professionals who are familiar with RF issues (such as gains and losses) as wellas local building and safety codes. Failure to do so will void the product warranty and mayexpose the end user to excessive Radio Frequency hazard. Regulations regarding maximumantenna gains, amplifier power gain, and maximum permissible exposure vary from country tocountry. It is the responsibility of the end user to operate within the limits of these regulationsand to ensure that the professional installers who install this device are aware of theseregulations. All antennas are intended to be installed outdoors.Page 15NOTES:
1. DescriptionThe AMP2440 is a bi-directional amplifier designed for extending the range of 2.4 GHzwireless radio modems, Wireless LAN cards, Access Points and wireless bridges. Theunits provide transmit power amplification as well as receive signal gain. The amplifier isinstalled right at the antenna’s feed point, providing maximum effectiveness of transmitpower. This has the effect of compensating for signal loss in the transmitter cable to theantenna. Likewise, the Low Noise Amplifier (LNA) in the AMP2440 boosts the receivesignal right at the antenna prior to experiencing the loss in the transmission cable to theradio. This gain completely overcomes the losses in the transmission cable between theamplifier and the radio. This results in the lowest possible system Noise Figure. In fact,use of the amp will actually increase the receiver sensitivity by a few dB! The ultimateresult is the best receiver sensitivity and maximum possible range for whatever antennais used.The amplifier box is weatherproof and can be bolted to the antenna mast or tower legusing the U-bolt included. When properly installed, the connectors face down so thatgravity will drain all water away from the amplifier enclosure. This will prevent waterfrom settling on the face of the unit. The LEDs will also be facing downward so that theycan be checked for operation from the bottom of the mast or tower.DC Power to the amplifier is supplied through the transmission cable that carries the RF(Radio Frequency) signal. This DC voltage is put on the coax cable using the DC PowerInjector included in the amplifier kit. Both the amplifier and the DC Injector also containtheir own integral lightning protection as well as DC surge protection. No externalantenna lightning protection on the coax cable is required. (The DC Injector has agrounding stud to facilitate an easy connection to a good earth ground.) It also hasmounting flanges to facilitate permanent installation to a bulkhead or wall. If mounted to agrounded metal plate, then no extra wiring needs to be attached to the grounding stud.The amplifier box will provide maximum lightning protection when it is bolted to a groundedmast or tower. No extra ground straps need to be connected to the amplifier case.2. Amplifier Features:•Transmit input levels from 3mW to 100mW•14 dB transmitter power gain (Standard amp)•16 dB receive gain•RX preamp noise figure better then 4 dB (typical)•Weatherproof Cast Aluminum Case that is mast mountable•DC Power for the amp carried up through the transmission cable•Power and Transmit LEDs on both the amp and the DC power injector•Built-in Lightning Protection•DC Surge Protection•Heavy Duty N-type Connectors•One Year Warranty•Made in the U.S.A.Page 1 Page 14NOTES:
Model 2440 Functional Block DiagramReceiver Low Noise Amplifier (LNA)Receive Gain:Freq Response:Noise Figure:16 dB nominal+/-1 dB over operating range4 dB typicalOperating Range:Operating Mode:Connectors:Indicators:Lightning Protection:DC SurgeProtection:2400-2483 MHzBi-directional, half-duplex. Senses RFcarrier from transmitter andautomatically switches from receive totransmit mode.N-femaleTX and RX LEDs on both the amplifierand the DC bias injectorDirect DC ground at antenna connector.DC injector serves as lightning arrestorif properly grounded.600 Watt TVS at 12 VDC input fromtransmis2.1 General SpecificationsTransmitter AmplifierTransmit Gain:Freq Response:Transmit OutputPower:Duty Cycle:Transmit InputPower to Amp:14 dB nominal for standard amp(Other versions may have different gains)+/-1 dB over operating range250 mW nominalUp to 640 mW for FHSS radiosUp to 400 mW for DSSS radios50% Maximum3mW minimum (+5dBm),100mW (20 dBm) maximum(Special versions are available with higherinput power.)Mechanical, Power and EnvironmentalOperatingTemperature:Power:Dimensions:Mounting Bracketfor amplifier: Kit Weight:-20°C to +60°C105-240 VAC if using the powersupply provided with the amp kit or11 – 14 VDC @ 900 ma peak, 400 ma avg. with an alternate power sourceAmplifier: 4.5” x 2.6” x 1.2 ”DC Power injector: 5.4” X 2.4” X 1.3 ”Accommodates pole/mastdiametersfrom 3/4” to 3”Approx. 1.5 lb. with U-bolts View showing the DC Injector and thepole mounted outdoor amplifierattached to its mounting bracket.Page 2NOTES:Page 13
3. Amplifier KitEach Amplifier Kit Includes:• Bi-directional remote mounted amplifier• DC Power Injector• 12 VDC, 110/220 VAC Power Supply• Stainless Steel U-Bolts and mounting bracket for amp• Installation Manual Close up of the bracket and mountinghardware attached to the amplifier.The following options are also available and must be ordered separately:DC power cable with 2.1mm plug to flying lead 3 feet long. Used when thecustomer provides their own 12 VDC power for the DC injector or amp.Option to add second power jack on DC injector to enable one 12 VDC PSthat comes with the amp to power both the Injector and the radio or AP.(Requires a DC jumper cable. See below).DC jumper cable that connects a radio modem or Access Point to thesecond DC power jack on the DC injector box. Radio devices must have a2.1 mm ID power jack and operate on 12VDC.Same as above except used for radios and Access Points that have a 2.5mm ID barrel jack on them.4. Installation and Cabling InstructionsFCC NoticeTo comply with FCC part 15 rules, the proper version of the amp must only be used in systemsthat have been FCC certified. The system must also be professionally installed to ensurecompliance with the Part 15 certification. It is the resposibility of the professional installer toensure that certified systems be deployed in the United States (or where FCC rules apply).The use of the amplifier in any other combination (such as co-located antennas transmittingthe same information) is expressly forbidden in accordance with FCC rules CFR47 part15.204. Please visit our web site (www.ydi.com) to see the systems currently certified by theFCC.Several key factors unique to their particular installation determine the power level at the inputof the amplifier. The most important consideration is the cable loss in the transmission cablebetween the radio and the pole mounted amp. It is important that the installer understand theseand other factors when installing the system.If you are not familiar with determining power levels within the transmission system, YDIengineers will assist you in planning your system including selecting the proper cable andantenna required.Page 3CAB-DCDUAL-DCDC-2.1-2.1DC-2.1-2.5Page 12Table BAuthorized Cables with Minimum LengthsNOTE: This table is for reference only. In order to comply with FCC Part 15Certification, the installer must insure that actual coax cable usedbetween the DC injector and the amplifier has at least 3.3 dB ofinsertion loss.Caution: If the power output from the amplifier exceeds +24 dBm or the antennas used are in excess of 24 dBi gain, the FCC regulatory limits specified in Part 15.247(b)(3)(i) could be exceeded.epyTelbaCssoL/htgneLmuminiMshtgneLdednemmoceRxaMU/85GR591RML Bd4.3/teeF91teeF04002RMLBd4.3/teeF02teeF05042RMLBd3.3/teeF52teeF56004RMLBd4.3/teeF05teeF011005RMLBd5.3/teeF06teeF051006RMLBd5.3/teeF08teeF081009RMLBd5.3/teeF021teeF0620021RMLBd4.3/teeF051teeF0530071RMLBd4.3/teeF002teeF084NOTE:1. MPE distance figures are based on a conservative “worst case” prediction, i.e.+24 dBm into antenna using formula S=EIRP/(4piR2) and no calculaton for dutyfactor. In practice the minimum distance will be much shorter.2. The minimum MPE distance has been calculated for the maximum allowedPower Density (S) limit os 1.0 mW/cm2 in the Frequency range 1500 - 100,000MHz for uncontrolled environments (Ref. 2).Reference:1. FCC Part 15, sub-clause 15.247 (b)(4)2. FCC OET Bulletin 65, edition 97-013. FCC Supplement C to OET Bulletin 65, edition 97-01IMPORTANT:Only mount theamplifier with theconnectors facingdownward. Do notmount it with theconnectors facingsideways or upwards.
The amplifier can be mast mounted using the steel U-bolt included with the unit. Refer to thedrawing at the end of the manual for a cabling diagram. In outdoor applications, the amplifiermust be installed with the connectors facing downward. Use an open-end wrench tocarefully tighten the bolts using the included nuts. Take care not to over-tighten the bolts.Alternately, the amplifier can be mounted to a flat surface using any of the mounting holes onthe brackets mounting flanges. However, for maximum reliability the connectors should befacing downward.It is very important to waterproof the RF connectors on the amp. However, it is recommendedthat you do not tape the connectors until after all system tests have been performed. Be sureto use a high quality weather resistant electrical tape and/or other water sealant method.Silicon sealants are not recommended since they are hard to work with, do not ensure a 100%waterproofing of the connectors and difficult to remove if ever necessary. The picture to the left shows the amplifier in typicalinstallation shown with the YDI Model PT2421 GridDish antenna vertically polarized. The location on themast where the amplifier is mounted is not important:provided that the connectors face downward. (Notethat when this picture was taken, the connectorswere not taped yet nor was the cable secured tothe mast.) Also, there is not need to plug or fill anyof the holes on the back of the amplifier enclosure.The housing is designed such that these holes do notpenetrate the inside of the waterproof seal eventhough an initial inspection might make you thinkotherwise.If the tower or mast is adequately grounded and theU-bolt makes good electrical connection to it, thenthere is no need to provide additional grounding to theamplifier enclosure.The DC Power Injector is not in a waterproof enclosure and must be protected from theweather. It can be permanently mounted to a surface using the mounting flanges. If it is notmounted to a well-grounded metal plate or bulkhead, then a separate ground strap will need toconnect to the grounding stud on the Injector.Page 4APPENDIX B: FCC Part 15 Certified SystemsPage 11FCC ID#: NM5-LUC2400ETable AAuthorized AntennasFCC certified systems consist of:· A2440-xxF amplifier, DC Injector and 12 VDC Power supply· Orinoco/Lucent WLAN card with the FCC ID#: IMRWLPCE24H· Outdoor Antenna (Table A)· Coax Cable (Table B)This equipment complies with FCC radiation exposure limits set forth for anuncontrolled environment when installed as directed. This equipment should beinstalled and operated with fix-mounted antennas that are installed such that themain lobe(s) of these antennas will have a minimum of 2 meters of separationdistance between the antenna and all persons’ body during normal operation.Safety NoticeRefer to the Typical Installation Detail drawing at the end of this manual for more informationabout the installation.ledoMepyTannetnA annetnA niaG )iBd(PRIE )mBd( ecnatsiDEPM )MC(42-ID-42UOAtnecuLannetnAhsiDdirG4284174242TPIDYannetnAhsiDdirG4284171242TPIDYannetnAhsiDdirG12540581PF54.2AIDYannetnAlenaPtalF81246351PF54.2AIDYannetnAlenaPtalF51935221PF54.2AIDYannetnAlenaPtalF21630271PL54.2AIDYannetnAlenaPgnoL71142341PL54.2AIDYannetnAlenaPgnoL4183322142AIDYannetnAinmO21630201-DO-42UOAtnecuLannetnAinmO0143020142AIDYannetnAinmO0143028042AIDYannetnAinmO93302548551EXtnecuLannetnAinmO60302B-21-AW-UOAtnecuLannetnAelgnAediW21420281PF54.2AIDYannetnAelgnAediW214202A21PS4.2AIDY lenaPtalFdeifilpmA annetnA 214202
5. Amplifier Connections and IndicatorsCAUTION: Only use high quality N-type connectors. Do not use PL259 “CB” type UHF connectors. Doing so will ruin the N-Female jacks and void your warranty.This LED glows RED when the amp has switched to the transmit mode.This occurs when the amp detects RF power at the jack labeled “ToDC Injector”. (See Section 9 operation for more information)This LED glows GREEN in the receive mode when DC power is appliedto the amplifier. It is goes off when; the amp is in the transmittingmode.This N-type female connects to the DC Power Injector via the transmis-sion cable. The length of this cable will determine the type of cablethat should be used. See the installation diagram and the Appendix formore information.Transmit LED:Receive LED:AntennaConnection:DC InjectorConnection:6. DC Power Injector OperationA DC Power Injector is an in-line device which “injects” the DC power necessary to operatethe amplifier onto a transmission line. This allows the coax cable to carry both RF signals andDC power to the mast-mounted amplifier. This precludes the need to run a separate powercable to the remote mounted amplifier.Page 5This N-type female connects to the antenna with a short length oflow-loss coax cable.When grounded to a good earth ground through either the grounding stud or mounting flange,the DC Injector will provide maximum lightning protection to your radio modem, wireless LANcard or Access Point.Page 10APPENDIX A: Calculating PowerThis appendix explains how to calculate the input power to the amplifier for your configuration.1. Using Table A, convert the output power of the radio modem from Watts (or milliWatts) todBm. The Model 2440 amplifier works with input powers between 3.2 mW, +5 dBm, and100 mW (+20 dBm).2. Calculate the cable attenuation for your installation.First, determine the attenuation for the length of your cable at 2.4 GHz. Use the cablemanufacturer’s specifications, or for convenience you may refer to Table B for typical values.(For example, Table B shows that typical attenuation for LMR-400 is about 6.9 dB per 100 footat 2.4 GHz.) Then add 0.6 dB to that figure for connector, adaptor cable, and DC injectorlosses.3. Calculate the maximum power that can be expected at the amp on the pole:Radio output (dB) - Cable loss (dB) - Connector Loss = Signal level at the amp’s input (dBm)For example, a radio with 40mW (+16 dBm) output and 75 feet of LMR400 (about 3.4 dB ofloss) would have the following input level to the amplifier:+16 dBm - 3.4 dB - 0.6dB = +10 dBmUsing a standard amplifier with 14 dB of linear transmit power gain, the output power iscalculated as follows:+10 dBm + 14 dB gain = +24 dBm output power (250 mW)If the input to the amplifier will exceed +20 dB (100 mW) by your calculations, an attenuatorpad will be necessary between the modem and the DC injector. Or you can order a specialversion of the amplifier from YDI that will accept higher transmit input power.Note: Never put attenuator pads between in the cable the DC injector and the amplifier sincethere is a +12V DC voltage on the cable. Doing this would prevent DC power fromreaching the amp and will also damage the attenuator. However, a longer cable orone with higher loss could be used.Effective Radiated Power (ERP)ERP is defined as the sum of the power feeding an antenna and the gain (in dBi) of thatantenna. For example, with 250 mW (+24 dBm) of power into a 24 dBi gain grid dish antenna(like the YDI PT2424), the ERP would be:+24 dBm + 24 dB = 48 dBm or 64 watts EIRP
7. DC Power Injector Connections and IndicatorsThis LED glows RED when the pole mounted amplifier goes into transmit amplification mode. The Remote Transmit LED is controlled by uniquecircuitry, which actually detects changes in the DC current traveling throughthe transmission line to the amplifier. When you see this LED flash, you will know that the remote pole amplifier is going into transmit mode.This LED glows GREEN when DC power is applied to the amplifier and it is in the receive mode. When toggling between transmit and receive this LEDwill glow slightly dimmer.This N-type female connects to the radio via a short jumper cable.This N-type female connects to the amplifier on the mast using the coax transmission line.This is the DC power input for the injector and is a standard 2.1 mm barreljack. +12VDC should be applied with center positive.This jack parallels the 12 VDC jack power jack. It can be used to provide 12VDC to the radio modem or Access Point using a short DC jumper cable.Provided that the radio device operates on 12 VDC and draws less then 600ma, the standard DC power supply that comes with the amplifier kit can beused to power both it and the amplifier/DC Injector. This extra jack isinstalled when the DC-INJ-DUAL option is ordered.Red Transmit LED:Green ReceiveLED:“To Radio”Connection:“To Amplifier”Connection:12 VDC:AUX 12VDC:8. Power SupplyThe AMP2440 kit comes with a 100 to 240 VAC power supply that has a standard 2.1 mmbarrel plug [center pin positive (+) tip and outer ring negative (-)]. Although normally suppliedwith a power supply, any 12 Volt DC, 1 amp (or greater) regulated power supply can be used.The amplifier can operate from 11 to 14 VDC enabling battery or vehicle operation as well.Page 6The DC power input is diode protected to prevent damagecaused by reverse polarity inputvoltages as well as by an TVS to protect it and the amp from overvoltage surges.dBm012345678910111213141516171819202122232425Watts1.0 mW1.3 mW1.6 mW2.0 mW2.5 mW3.2 mW4.0 mW5.0 mW 6 mW 8 mW10 mW13 mW16 mW20 mW25 mW32 mW40 mW50 mW64 mW80 mW100 mW128 mW160 mW200 mW250 mW320 mWWatts400 mW500 mW640 mW800 mW1.0 W1.3 W1.6 W2.0 W2.5 W3.0 W4.0 W5.0 W6.0 W8.0 W10 W13 W16 W20 W25 W32 W40 W50 W64 W80 W100 W1000 WdBm2627282930313233343536373839404142434445464748495060Table A - Conversions from dBm to WattsTable B - Typical Cable Attenuation ValuesThese values are approximate. Check with cable manufacturers for exact specifications.Page 9Cable TypeBelden 9913LMR 200LMR 240LMR 400LMR 6001/2” LDF1/2” Superflex3/8” LDF3/8” Superflex1/4” SuperflexAttenuation per 100 ftat 2.4 GHz (dB)8.016.812.96.94.43.96.15.96.89.8
9. OperationThe unit operates automatically and there are no user adjustments.The amplifier is only intended for use with 2.4 GHz radio modems that alternate betweentransmit and receive in the same radio channel. These are referred to as Time DivisionMultiplex (TDD) devices. A typical example is an 802.11 WLAN card or Access Point. Thesemodems “ping-pong” back and forth between transmit and receive so quickly during normaloperation that both the TX and RX LEDs will appear to be lit simultaneously. In fact they areturning on and off so quickly that they appear to be on all the time. You can tell the duty cycleone of these LEDs by their brightness.The amplifier will not work with radio modems or wireless bridges that are band-split true fullduplex devices.The amplifier provides linear amplification for transmit output powers up to at least 400 mW.This is important for Direct Sequence Spread Spectrum (DSSS) radios, especially 802.11devices. If you drive the amp so hard as to exceed 400mW output power, the amplifier willstart to go into compression. This will result in raising the sidebands which will result inpolluting the adjacent radio channels.For Frequency Hopping Spread Spectrum radio devices, versions of the amplifier are availablefrom the that have the output power limited to 250, 400 or 500 mW as specified in the FCCcertified system. These amplifiers should not be used with DSSS radios since the transmitpower limiting mechanism in the amplifier will cause it to go into compression when theirrespective clamped output levels are reached.Page 7 Page 8ANTENNAOmni-directional (shown), Grid Dish, panel Yagi Antennas (not shown)orAMP2440 (mounted to mast with U-Bolt)N-female connectorTransmission LineLMR-400 (Up to 100 feet)LMR-500 or LMR-600 (Up to 150 feet)LMR-1200 (Up to 300 feet)MastDripLoop()CAB-LLDrawings\diagrams\install-amp-GenericDC POWER INJECTOR Radio Modem,Access Point,WLAN Card, etc Short length of RG58/U RF + DC110/220 VACN-female N-femaleConnector required by radioDC P.S. Barrel Plug 12 VDC Plug BarrelOptional Jumper Cable (CAB-DC-2.x)TYPICAL AMPLIFIER INSTALLATION DETAILS12 VDCTo Network YDI can provide all necessary cables, antennas and accessories. The professional installer must provide the mast or pole to mount the antenna and amplifierTo enable the DC power supply to power both the DC Injector and the radio, the amp kit should be ordered with the DUAL-DC option along with the appropriate DC Jumper cable.
9. OperationThe unit operates automatically and there are no user adjustments.The amplifier is only intended for use with 2.4 GHz radio modems that alternate betweentransmit and receive in the same radio channel. These are referred to as Time DivisionMultiplex (TDD) devices. A typical example is an 802.11 WLAN card or Access Point. Thesemodems “ping-pong” back and forth between transmit and receive so quickly during normaloperation that both the TX and RX LEDs will appear to be lit simultaneously. In fact they areturning on and off so quickly that they appear to be on all the time. You can tell the duty cycleone of these LEDs by their brightness.The amplifier will not work with radio modems or wireless bridges that are band-split true fullduplex devices.The amplifier provides linear amplification for transmit output powers up to at least 400 mW.This is important for Direct Sequence Spread Spectrum (DSSS) radios, especially 802.11devices. If you drive the amp so hard as to exceed 400mW output power, the amplifier willstart to go into compression. This will result in raising the sidebands which will result inpolluting the adjacent radio channels.For Frequency Hopping Spread Spectrum radio devices, versions of the amplifier are availablefrom the that have the output power limited to 250, 400 or 500 mW as specified in the FCCcertified system. These amplifiers should not be used with DSSS radios since the transmitpower limiting mechanism in the amplifier will cause it to go into compression when theirrespective clamped output levels are reached.Page 7 Page 8ANTENNAOmni-directional (shown), Grid Dish, panel Yagi Antennas (not shown)orAMP2440 (mounted to mast with U-Bolt)N-female connectorTransmission LineLMR-400 (Up to 100 feet)LMR-500 or LMR-600 (Up to 150 feet)LMR-1200 (Up to 300 feet)MastDripLoop()CAB-LLDrawings\diagrams\install-amp-GenericDC POWER INJECTOR Radio Modem,Access Point,WLAN Card, etc Short length of RG58/U RF + DC110/220 VACN-female N-femaleConnector required by radioDC P.S. Barrel Plug 12 VDC Plug BarrelOptional Jumper Cable (CAB-DC-2.x)TYPICAL AMPLIFIER INSTALLATION DETAILS12 VDCTo Network YDI can provide all necessary cables, antennas and accessories. The professional installer must provide the mast or pole to mount the antenna and amplifierTo enable the DC power supply to power both the DC Injector and the radio, the amp kit should be ordered with the DUAL-DC option along with the appropriate DC Jumper cable.
7. DC Power Injector Connections and IndicatorsThis LED glows RED when the pole mounted amplifier goes into transmit amplification mode. The Remote Transmit LED is controlled by uniquecircuitry, which actually detects changes in the DC current traveling throughthe transmission line to the amplifier. When you see this LED flash, you will know that the remote pole amplifier is going into transmit mode.This LED glows GREEN when DC power is applied to the amplifier and it is in the receive mode. When toggling between transmit and receive this LEDwill glow slightly dimmer.This N-type female connects to the radio via a short jumper cable.This N-type female connects to the amplifier on the mast using the coax transmission line.This is the DC power input for the injector and is a standard 2.1 mm barreljack. +12VDC should be applied with center positive.This jack parallels the 12 VDC jack power jack. It can be used to provide 12VDC to the radio modem or Access Point using a short DC jumper cable.Provided that the radio device operates on 12 VDC and draws less then 600ma, the standard DC power supply that comes with the amplifier kit can beused to power both it and the amplifier/DC Injector. This extra jack isinstalled when the DC-INJ-DUAL option is ordered.Red Transmit LED:Green ReceiveLED:“To Radio”Connection:“To Amplifier”Connection:12 VDC:AUX 12VDC:8. Power SupplyThe AMP2440 kit comes with a 100 to 240 VAC power supply that has a standard 2.1 mmbarrel plug [center pin positive (+) tip and outer ring negative (-)]. Although normally suppliedwith a power supply, any 12 Volt DC, 1 amp (or greater) regulated power supply can be used.The amplifier can operate from 11 to 14 VDC enabling battery or vehicle operation as well.Page 6The DC power input is diode protected to prevent damagecaused by reverse polarity inputvoltages as well as by an TVS to protect it and the amp from overvoltage surges.dBm012345678910111213141516171819202122232425Watts1.0 mW1.3 mW1.6 mW2.0 mW2.5 mW3.2 mW4.0 mW5.0 mW 6 mW 8 mW10 mW13 mW16 mW20 mW25 mW32 mW40 mW50 mW64 mW80 mW100 mW128 mW160 mW200 mW250 mW320 mWWatts400 mW500 mW640 mW800 mW1.0 W1.3 W1.6 W2.0 W2.5 W3.0 W4.0 W5.0 W6.0 W8.0 W10 W13 W16 W20 W25 W32 W40 W50 W64 W80 W100 W1000 WdBm2627282930313233343536373839404142434445464748495060Table A - Conversions from dBm to WattsTable B - Typical Cable Attenuation ValuesThese values are approximate. Check with cable manufacturers for exact specifications.Page 9Cable TypeBelden 9913LMR 200LMR 240LMR 400LMR 6001/2” LDF1/2” Superflex3/8” LDF3/8” Superflex1/4” SuperflexAttenuation per 100 ftat 2.4 GHz (dB)8.016.812.96.94.43.96.15.96.89.8
5. Amplifier Connections and IndicatorsCAUTION: Only use high quality N-type connectors. Do not use PL259 “CB” type UHF connectors. Doing so will ruin the N-Female jacks and void your warranty.This LED glows RED when the amp has switched to the transmit mode.This occurs when the amp detects RF power at the jack labeled “ToDC Injector”. (See Section 9 operation for more information)This LED glows GREEN in the receive mode when DC power is appliedto the amplifier. It is goes off when; the amp is in the transmittingmode.This N-type female connects to the DC Power Injector via the transmis-sion cable. The length of this cable will determine the type of cablethat should be used. See the installation diagram and the Appendix formore information.Transmit LED:Receive LED:AntennaConnection:DC InjectorConnection:6. DC Power Injector OperationA DC Power Injector is an in-line device which “injects” the DC power necessary to operatethe amplifier onto a transmission line. This allows the coax cable to carry both RF signals andDC power to the mast-mounted amplifier. This precludes the need to run a separate powercable to the remote mounted amplifier.Page 5This N-type female connects to the antenna with a short length oflow-loss coax cable.When grounded to a good earth ground through either the grounding stud or mounting flange,the DC Injector will provide maximum lightning protection to your radio modem, wireless LANcard or Access Point.Page 10APPENDIX A: Calculating PowerThis appendix explains how to calculate the input power to the amplifier for your configuration.1. Using Table A, convert the output power of the radio modem from Watts (or milliWatts) todBm. The Model 2440 amplifier works with input powers between 3.2 mW, +5 dBm, and100 mW (+20 dBm).2. Calculate the cable attenuation for your installation.First, determine the attenuation for the length of your cable at 2.4 GHz. Use the cablemanufacturer’s specifications, or for convenience you may refer to Table B for typical values.(For example, Table B shows that typical attenuation for LMR-400 is about 6.9 dB per 100 footat 2.4 GHz.) Then add 0.6 dB to that figure for connector, adaptor cable, and DC injectorlosses.3. Calculate the maximum power that can be expected at the amp on the pole:Radio output (dB) - Cable loss (dB) - Connector Loss = Signal level at the amp’s input (dBm)For example, a radio with 40mW (+16 dBm) output and 75 feet of LMR400 (about 3.4 dB ofloss) would have the following input level to the amplifier:+16 dBm - 3.4 dB - 0.6dB = +10 dBmUsing a standard amplifier with 14 dB of linear transmit power gain, the output power iscalculated as follows:+10 dBm + 14 dB gain = +24 dBm output power (250 mW)If the input to the amplifier will exceed +20 dB (100 mW) by your calculations, an attenuatorpad will be necessary between the modem and the DC injector. Or you can order a specialversion of the amplifier from YDI that will accept higher transmit input power.Note: Never put attenuator pads between in the cable the DC injector and the amplifier sincethere is a +12V DC voltage on the cable. Doing this would prevent DC power fromreaching the amp and will also damage the attenuator. However, a longer cable orone with higher loss could be used.Effective Radiated Power (ERP)ERP is defined as the sum of the power feeding an antenna and the gain (in dBi) of thatantenna. For example, with 250 mW (+24 dBm) of power into a 24 dBi gain grid dish antenna(like the YDI PT2424), the ERP would be:+24 dBm + 24 dB = 48 dBm or 64 watts EIRP
The amplifier can be mast mounted using the steel U-bolt included with the unit. Refer to thedrawing at the end of the manual for a cabling diagram. In outdoor applications, the amplifiermust be installed with the connectors facing downward. Use an open-end wrench tocarefully tighten the bolts using the included nuts. Take care not to over-tighten the bolts.Alternately, the amplifier can be mounted to a flat surface using any of the mounting holes onthe brackets mounting flanges. However, for maximum reliability the connectors should befacing downward.It is very important to waterproof the RF connectors on the amp. However, it is recommendedthat you do not tape the connectors until after all system tests have been performed. Be sureto use a high quality weather resistant electrical tape and/or other water sealant method.Silicon sealants are not recommended since they are hard to work with, do not ensure a 100%waterproofing of the connectors and difficult to remove if ever necessary. The picture to the left shows the amplifier in typicalinstallation shown with the YDI Model PT2421 GridDish antenna vertically polarized. The location on themast where the amplifier is mounted is not important:provided that the connectors face downward. (Notethat when this picture was taken, the connectorswere not taped yet nor was the cable secured tothe mast.) Also, there is not need to plug or fill anyof the holes on the back of the amplifier enclosure.The housing is designed such that these holes do notpenetrate the inside of the waterproof seal eventhough an initial inspection might make you thinkotherwise.If the tower or mast is adequately grounded and theU-bolt makes good electrical connection to it, thenthere is no need to provide additional grounding to theamplifier enclosure.The DC Power Injector is not in a waterproof enclosure and must be protected from theweather. It can be permanently mounted to a surface using the mounting flanges. If it is notmounted to a well-grounded metal plate or bulkhead, then a separate ground strap will need toconnect to the grounding stud on the Injector.Page 4APPENDIX B: FCC Part 15 Certified SystemsPage 11FCC ID#: NM5-LUC2400ETable AAuthorized AntennasFCC certified systems consist of:· A2440-xxF amplifier, DC Injector and 12 VDC Power supply· Orinoco/Lucent WLAN card with the FCC ID#: IMRWLPCE24H· Outdoor Antenna (Table A)· Coax Cable (Table B)This equipment complies with FCC radiation exposure limits set forth for anuncontrolled environment when installed as directed. This equipment should beinstalled and operated with fix-mounted antennas that are installed such that themain lobe(s) of these antennas will have a minimum of 2 meters of separationdistance between the antenna and all persons’ body during normal operation.Safety NoticeRefer to the Typical Installation Detail drawing at the end of this manual for more informationabout the installation.ledoMepyTannetnA annetnA niaG )iBd(PRIE )mBd( ecnatsiDEPM )MC(42-ID-42UOAtnecuLannetnAhsiDdirG4284174242TPIDYannetnAhsiDdirG4284171242TPIDYannetnAhsiDdirG12540581PF54.2AIDYannetnAlenaPtalF81246351PF54.2AIDYannetnAlenaPtalF51935221PF54.2AIDYannetnAlenaPtalF21630271PL54.2AIDYannetnAlenaPgnoL71142341PL54.2AIDYannetnAlenaPgnoL4183322142AIDYannetnAinmO21630201-DO-42UOAtnecuLannetnAinmO0143020142AIDYannetnAinmO0143028042AIDYannetnAinmO93302548551EXtnecuLannetnAinmO60302B-21-AW-UOAtnecuLannetnAelgnAediW21420281PF54.2AIDYannetnAelgnAediW214202A21PS4.2AIDY lenaPtalFdeifilpmA annetnA 214202
3. Amplifier KitEach Amplifier Kit Includes:• Bi-directional remote mounted amplifier• DC Power Injector• 12 VDC, 110/220 VAC Power Supply• Stainless Steel U-Bolts and mounting bracket for amp• Installation Manual Close up of the bracket and mountinghardware attached to the amplifier.The following options are also available and must be ordered separately:DC power cable with 2.1mm plug to flying lead 3 feet long. Used when thecustomer provides their own 12 VDC power for the DC injector or amp.Option to add second power jack on DC injector to enable one 12 VDC PSthat comes with the amp to power both the Injector and the radio or AP.(Requires a DC jumper cable. See below).DC jumper cable that connects a radio modem or Access Point to thesecond DC power jack on the DC injector box. Radio devices must have a2.1 mm ID power jack and operate on 12VDC.Same as above except used for radios and Access Points that have a 2.5mm ID barrel jack on them.4. Installation and Cabling InstructionsFCC NoticeTo comply with FCC part 15 rules, the proper version of the amp must only be used in systemsthat have been FCC certified. The system must also be professionally installed to ensurecompliance with the Part 15 certification. It is the resposibility of the professional installer toensure that certified systems be deployed in the United States (or where FCC rules apply).The use of the amplifier in any other combination (such as co-located antennas transmittingthe same information) is expressly forbidden in accordance with FCC rules CFR47 part15.204. Please visit our web site (www.ydi.com) to see the systems currently certified by theFCC.Several key factors unique to their particular installation determine the power level at the inputof the amplifier. The most important consideration is the cable loss in the transmission cablebetween the radio and the pole mounted amp. It is important that the installer understand theseand other factors when installing the system.If you are not familiar with determining power levels within the transmission system, YDIengineers will assist you in planning your system including selecting the proper cable andantenna required.Page 3CAB-DCDUAL-DCDC-2.1-2.1DC-2.1-2.5Page 12Table BAuthorized Cables with Minimum LengthsNOTE: This table is for reference only. In order to comply with FCC Part 15Certification, the installer must insure that actual coax cable usedbetween the DC injector and the amplifier has at least 3.3 dB ofinsertion loss.Caution: If the power output from the amplifier exceeds +24 dBm or the antennas used are in excess of 24 dBi gain, the FCC regulatory limits specified in Part 15.247(b)(3)(i) could be exceeded.epyTelbaCssoL/htgneLmuminiMshtgneLdednemmoceRxaMU/85GR591RML Bd4.3/teeF91teeF04002RMLBd4.3/teeF02teeF05042RMLBd3.3/teeF52teeF56004RMLBd4.3/teeF05teeF011005RMLBd5.3/teeF06teeF051006RMLBd5.3/teeF08teeF081009RMLBd5.3/teeF021teeF0620021RMLBd4.3/teeF051teeF0530071RMLBd4.3/teeF002teeF084NOTE:1. MPE distance figures are based on a conservative “worst case” prediction, i.e.+24 dBm into antenna using formula S=EIRP/(4piR2) and no calculaton for dutyfactor. In practice the minimum distance will be much shorter.2. The minimum MPE distance has been calculated for the maximum allowedPower Density (S) limit os 1.0 mW/cm2 in the Frequency range 1500 - 100,000MHz for uncontrolled environments (Ref. 2).Reference:1. FCC Part 15, sub-clause 15.247 (b)(4)2. FCC OET Bulletin 65, edition 97-013. FCC Supplement C to OET Bulletin 65, edition 97-01IMPORTANT:Only mount theamplifier with theconnectors facingdownward. Do notmount it with theconnectors facingsideways or upwards.
Model 2440 Functional Block DiagramReceiver Low Noise Amplifier (LNA)Receive Gain:Freq Response:Noise Figure:16 dB nominal+/-1 dB over operating range4 dB typicalOperating Range:Operating Mode:Connectors:Indicators:Lightning Protection:DC SurgeProtection:2400-2483 MHzBi-directional, half-duplex. Senses RFcarrier from transmitter andautomatically switches from receive totransmit mode.N-femaleTX and RX LEDs on both the amplifierand the DC bias injectorDirect DC ground at antenna connector.DC injector serves as lightning arrestorif properly grounded.600 Watt TVS at 12 VDC input fromtransmis2.1 General SpecificationsTransmitter AmplifierTransmit Gain:Freq Response:Transmit OutputPower:Duty Cycle:Transmit InputPower to Amp:14 dB nominal for standard amp(Other versions may have different gains)+/-1 dB over operating range250 mW nominalUp to 640 mW for FHSS radiosUp to 400 mW for DSSS radios50% Maximum3mW minimum (+5dBm),100mW (20 dBm) maximum(Special versions are available with higherinput power.)Mechanical, Power and EnvironmentalOperatingTemperature:Power:Dimensions:Mounting Bracketfor amplifier: Kit Weight:-20°C to +60°C105-240 VAC if using the powersupply provided with the amp kit or11 – 14 VDC @ 900 ma peak, 400 ma avg. with an alternate power sourceAmplifier: 4.5” x 2.6” x 1.2 ”DC Power injector: 5.4” X 2.4” X 1.3 ”Accommodates pole/mastdiametersfrom 3/4” to 3”Approx. 1.5 lb. with U-bolts View showing the DC Injector and thepole mounted outdoor amplifierattached to its mounting bracket.Page 2NOTES:Page 13
Limited WarrantyYoung Design, Inc. (YDI) warrants that your device is free of defects in material andworkmanship for a period of one year after initial purchase. YDI will, in this period of time,repair or replace, any YDI product returned to the factory, freight prepaid.The YDI warranty covers repairs or replacement (at YDI’s option) of the product only. YDI isnot responsible for the cost of removal, reinstallation, or shipping to the place of repair. YDIdoes not extend or modify its warranty period as a result of repair or replacement.YDI reserves the right to void a warranty and/or make reasonable charges for the repair of aunit if the warranty seal is broken or the unit displays evidence of misuse, abuse, ortampering.YDI is not responsible for damage to any other equipment or property, or any otherconsequential or incidental damages of any kind, whether based on contract, negligence, orstrict liability. Maximum liability shall not in any case exceed the purchase price of the unit.Warranties give you (the buyer) specific legal rights. You may also have other rights thatvary from state to state. This warranty is only extended to purchases made in the UnitedStates of America or its possessions.Warranty NoticeThe AMP2440 warranty is null and void if any of the following occurs:1. The amplifier is opened2. The antenna connections are not properly waterproofed3. The amplifier is operated with no antenna attached4. Improper connectors are used5. The amplifier is mounted outdoors with the connectors facing any direction except downwardsThis device complies with part 15 of the FCC rules. Operation is subject to thefollowing two conditions: (1) This device may not cause harmful interference, and(2) this device must accept any interference received, including interference thatmay cause undesired operation.© 2000 Young Design, Inc. All Rights Reserved. No part or parts of this document may bereproduced, translated, stored in any electronic retrieval system, or transmitted, in any formor by any means, electronic, mechanical, photocopying, recording, or otherwise, without theprior written permission of Young Design, Inc.To see a complete line of our High SpeedWireless Data products, visit our web site at:www.ydi.comor call our Sales Office at:1-888-297-9090

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