Applied Micro Design 1473PA-RM-400 Model 1473 Remote Fiber Fed Power Amplifier User Manual

Applied Micro Design, Inc Model 1473 Remote Fiber Fed Power Amplifier

User Manual

Montclair State UniversityMSU Remote SystemFiber Interface Bi-Directional AmpliferUser’s Manualrev 1ETHERNETTEMP FLTSTATUS PA CUR FLTFOT FLTFWD PWRFAN FLTKEYREFL PWR LNA CUR FLT FOR FLTPOWER400 MHz AMPLIFIER/LNA MODEL 1473PASAMPLE PORTFO OUTLNA RF INAMPLIFIER RF OUTFO IN
Table of ContentsNotes, Cautions, and WarningsDescriptionBlock DiagramSpecificationsFeaturesDownlinkUplink2
Notes, Cautions, and Warnings!Invisible laser light is used on these equipment.DO NOT look directly into the fiber optic connectors when unit is in operation.Connect RF Output to existing Distributed Antenna System (DAS) cable only.DO NOT operate equipment with unauthorized antennas, cables, and/or coupling devices.DO NOT operate equipment unless all RF connectors are secure.DO NOT operate equipment unless it has been installed and inspected by a qualified radio technician.3
Description4There are two major elements to the MSU system; the Head End (HE) hardware and the Remote Hardware. There is one HE and multiple remotes. Each remote consists of a single Fiber-Fed Power Amplifier (FFPA) chassis. In the Downlink (DL) path, signals from user radios (Motorola radios that are FCC certified) are input to the DL HE hardware. These signals are filtered, converted to light by a Fiber Optic Transmitter, combined with signals from a Motorobo repeater, and transmitted to the FFPA via fiber optic cable. In the FFPA chassis, the light from the fiber optic cable is converted back to RF by a Fiber Optic Receiver, and the RF is input to a power amplifier module. The amplified RF is input to a bandpass filter; the filtered RF feeds the Distributed Antenna System (DAS) in the building where the remote hardware is located. In the Uplink (UL) path, signals from portable radios are input the DAS. These signals are amplified in a Low Noise Amplifier (LNA) in the FFPA, converted to light by a Fiber Optic Transmitter, and transmitted to the Head End via fiber optic cable. In the Head End rack, the light from the fiber optic cable is converted back to RF by a Fiber Optic Receiver, and the RF is input to a power amplifier module. The amplified RF is fed to the outside antenna via a duplexer.A front panel Look Port on the front panel of the FFPA allows the user to sample the signal without interrupting main line communications. The Look Port sample is 40 dB below the main RF output port.The FFPA has a processor board that monitors overall chassis operation. The processor board controls the enable signal to the amplifier and monitors forward power, reverse power, current, fan status and heat sink temperature. Forward and reverse power are derived from directional couplers built into the amplifier modules.Heat sink temperature is derived from a thermistor mounted onto the heat sink and amplifier current from a sense resistor in series with the +28-volt power input. The fan has a built-in stopped rotor line which is input to the processor board.The processor board features optional remote monitoring capability via Ethernet. The Graphical User Interface (GUI) of the Network Management System (NMS) computer can display the status of the amplifier and provide control.
Typical RemoteµPFOR460.3625 461.5875 461.9625DL-MSU 478.2500 LFD465.3625 466.5875 466.9625UL-MSU 481.250 LFDA1A3 FOTPAHD CommHD30433AMDi 1473PA-X-XAMDi 1473PA-X-XBPF-A CCCF-173Spare Spare Spare SpareEthernet SwitchMSU EthernetFrom UHTo UHMini-Ckts LNAZFL-500LN+To DASFrom DASAMDI Provided DataSite Name/Address:Project:Scale: Sheet #:Date:Drawn By: Drawing #:Sheet Size:68 WHITE STREET #265 RED BANK, NJ732-889-4671RevisionsDATE DRAWN BY REVISION NOTE APPRVD. BYN/A D 1of1 4/7/2016Matt JacobsTypical RemoteMSU
System SpecificationDownlinkFrequency: 478.2500 MHzType: Class ABBandwidth: 18 MHzGain: 45 dB *N.F.: 7 dBMax. Power Output: 17 dBmALC: 20 dBmHarmonics: > 60 dBc, 2nd and 3rd OIP3: +55 dBmImpedance: 50 OhmsLoad VSWR: Infinite, no damageUplink:Frequency: 481.2500 MHzType: LinearBandwidth: 16 MHzGain: 19 dBNF: 4 dBImpedance: 50 OhmsInput Level: -90 dBm to -10 dBmPower Supply: 115 V ACCurrent: < 2AOperating Temp: -30° to +60° C Size: 19” x 5.22” x 16”* With fiber link gain of zero6
ETHERNETTEMP FLTSTATUS PA CUR FLTFOT FLTFWD PWRFAN FLTKEYREFL PWR LNA CUR FLT FOR FLTPOWER400 MHz AMPLIFIER/LNA MODEL 1473PASAMPLE PORTFO OUTLNA RF INAMPLIFIER RF OUTFO INFeatures•power amplifier automatic level control (ALC)•high power amplifier gain•high power amplifier Third-Order Intercept Point (OIP3)•sample port at 40 dBc7
ETHERNETTEMP FLTSTATUS PA CUR FLTFOT FLTFWD PWRFAN FLTKEYREFL PWR LNA CUR FLT FOR FLTPOWER400 MHz AMPLIFIER/LNA MODEL 1473PASAMPLE PORTFO OUTLNA RF INAMPLIFIER RF OUTFO INPowerSwitchFiber OpticInput ConnectorLNA InputConnector-40 dBSample Port 2ConnectorFiber OpticOutput ConnectorSTATUS KEYREFL PWRLNA CUR FLTFOR FLTFAN FLTFWD PWRPA CUR FLTFOT FLTTEMP FLTRemote PA/LNA - Front Panel and IndicatorsModel No. 1473PA-RMTsteady: amplifer/LNA is operating steady: amplifier is enabledsteady: amplifier or LNA is operating normallysteady: amplifier or LNA has either current, reverse power or temperature faultPower AmplifierOutput Connector8
FORA1A3 FOTModel No.1473PA-RMTµPPSPS HD CommHD30433LNA ZFL-500HLNBPF-ACCCF-173DOWNLINK 478.2500 MHzDownlinkThe Downlink side of the 1473PA-RMT consists of a fiber optic receiver, a power amplifier and a bandpass filter. The fiber optic laser is applied to “ A “ shown below. The 1550 nm laser light is converted to radio frequency (RF) signal at “ B.” At “ C “ is the amplified and filtered RF signal from “ B. “The amplifier has an Automatic Level Control (ALC) feature. This feature limits the power amplifier output in case the input to the amplifier exceeds the required level.The power amplifier ALC level is set to +20 dBm. ABC9
FORA1A3 FOTModel No.1473PA-RMTµPPSPS HD CommHD30433LNA ZFL-500HLNBPF-ACCCF-173Signal GeneratorRF InSpectrum AnalyzerFOTRF Input at 478.2500 MHz is -30 dBmDOWNLINK 478.2500 MHzAttenuatorDownlink TestAShown below is a test set-up of the Downlink side of the 1473PA-RMT. The signal generator is set for 478.2500 MHz with a level of -30 dBm. The signal generator output is applied to a fiber optic transmitter and the optical output is connected to the FO In of the 1473PA-RMT.At “ B “ is a 30 dB attenuator connected to the Amplifier RF Out port and also connected to a spectrum analyzer on the other end. The power output expected at “ B “ is at least +15 dBm. BRF Output at 478.2500 MHz is +15 dBm nominal10
11SUPPLYPOWERPOWERETHERNETC3C1C2FLTPWRFLTFLTRFINTXRFINTXFOOutFOOutFiber Optic TransmitterModel No. 1473FOTPower Amplifer/LNAModel No. 1473PA-RMTSignal GeneratorRF InSpectrum AnalyzerAttenuatorDOWNLINK 478.2500 MHzETHERNETTEMP FLTSTATUS PA CUR FLTFOT FLTFWD PWRFAN FLTKEYREFL PWR LNA CUR FLT FOR FLTPOWER400 MHz AMPLIFIER/LNA MODEL 1473PASAMPLE PORTFO OUTLNA RF INAMPLIFIER RF OUTFO INDownlink Test Set-Up
FORA1A3 FOTModel No.1473PA-RMTµPPSPS HD CommHD30433LNA ZFL-500HLNBPF-ACCCF-173UplinkThe Uplink side of the 1473PA-RMT consists of a Low-Noise Amplifier (LNA) and a fiber optic transmitter. The RF signal is applied to “ A “ shown below, it is amplified by the LNA and comes out at a higher level at “ B. “ The RF signal from the LNA is converted to 1550 nm laser light by the fiber optic transmitter and comes out at “ C. “A B C12UPLINK 481.2500 MHz
13FORA1A3 FOTModel No.1473PA-RMTµPPSPS HD CommHD30433LNA ZFL-500HLNBPF-ACCCF-173Signal GeneratorFORRF InSpectrum AnalyzerUPLINK 481.2500 MHzUplink TestShown below is a test set-up of the Uplink side of the 1473PA-RMT. The signal generator is set for 481.2500 MHz with a level of -30 dBm. The signal generator output is applied to the LNA RF In at “ A. “ The FO Out optical output is connected to a fiber optic receiver. The RF Out of the fiber optic receiver is then connected to a spectrum analyzer. The power output expected at “ B “ is around -4 dBm. BARF Input at 481.2500 MHz is -30 dBmRF Output at 481.2500 MHz is -4 dBm nominal
14SUPPLYPOWERPOWERETHERNETC3C1C2FLTPWRFLTFLTRFOutRXRFOutRXFOInFOInFiber Optic ReceiverModel No. 1473FORPower Amplifer/LNAModel No. 1473PA-RMTSignal GeneratorRF InSpectrum AnalyzerUPLINK 481.2500 MHzUplink Test Set-UpETHERNETTEMP FLTSTATUS PA CUR FLTFOT FLTFWD PWRFAN FLTKEYREFL PWR LNA CUR FLT FOR FLTPOWER400 MHz AMPLIFIER/LNA MODEL 1473PASAMPLE PORTFO OUTLNA RF INAMPLIFIER RF OUTFO IN
15Applied Micro Design Inc.

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