Trimble Navigation PDL4535 UHF-FM Data Transceiver User Manual M0052202

Trimble Navigation Ltd UHF-FM Data Transceiver M0052202

Manual

iPDL BaseRadio ModemUser's GuideRevision 0.2 (preliminary)May 1999 Copyright 1999 Pacific Crest CorporationDocument M00522Pacific Crest Corporation990 Richard Avenue, Suite 110Santa Clara, CA 95050(408) 653-2070(408) 748-9984 Faxsales@paccrst.comhttp://www.paccrst.com
iiContentsContents.............................................................................................................iiGetting Acquainted.............................................................................................1Introduction..................................................................................................1Main Components........................................................................................2Compliance..................................................................................................6Electrical Considerations ....................................................................................8Power Supply...............................................................................................8Data Interface ..............................................................................................8Appendix A - Cables and Connectors .................................................................9Data/Power Connector .................................................................................9Appendix B - Technical Specifications..............................................................10General......................................................................................................10Radio Transceiver......................................................................................10Modem.......................................................................................................11Environmental............................................................................................11
Pacific Crest Corporation – PDL Base User’s Guide 1Getting AcquaintedIntroductionRadio modems provide wireless data communication between remote systems insituations where wireline communication is difficult or impossible. For fieldoperations such as remote monitoring and control, DGPS, and data telemetry,the radio modem provides the ideal link between remote computers, instrumentsand other RS-232 devices.The PDL Base is a high-speed, radio modem designed for field, mobile or officeoperation. At the heart of the PDL is a high quality, multi-channel telemetry radioengineered specifically for data communications. Using a simple 3-wire RS-232interface, the PDL can easily be connected to most computers and instruments toprovide an efficient and reliable data link.To meet the needs of a variety of applications, the PDL can be configured with anIBM-PC compatible computer. Operating parameters such as data transmissionrate, mode, and others can be configured quickly without having to modify themodem hardware.Pacific Crest Corporation stands behind its products by providing comprehensivecustomer support with quick and efficient service. We understand that yoursuccess in using our products is key. For this reason, our toll-free number isavailable for sales and service questions (U.S. and Canada). Additionalcustomer service options are available to assure that your radio modem productsare properly maintained, and to assure minimum downtime should a problemoccur.Monday through Friday - 8:00 a.m. to 5:00 p.m. (PST)1-800-795-1001 (Toll-free U.S. and Canada)(408) 653-2070 (International/Local)(408) 748-9984 (Fax)sales@paccrst.com (Internet)http://www.paccrst.com
Pacific Crest Corporation – PDL Base User’s Guide2Main ComponentsThis section will acquaint you with the physical attributes of the PDL Base radiomodem. Figures 1 and 2 show the standard PDL Base unit.Figure 1 – PDL Base: Front ViewPDL Base Front Panel FeaturesON / OFF Pushbutton – An environmentally sealed pushbutton switch used forturning the unit on and off.ON / OFF Indicator – An LED indicator used to show the unit is powered up.Channel Change Pushbutton – An environmentally sealed pushbutton switchused to select among the preprogrammed channels.PDLPositioningData LinkAMP POWER IndicatorON / OFF PushbuttonON / OFF IndicatorRX IndicatorTX IndicatorDigital DisplayChannel Change Pushbutton
Pacific Crest Corporation – PDL Base User’s Guide 3Digital Display – A seven-segment LED used to indicate channel status andother diagnostic information.TX Indicator – An LED indicator which will light when the unit is transmittingdata.RX Indicator – An LED indicator which will light when the unit is receiving data.AMP POWER Indicator – An LED indicator which shows the selected RF outputlevel. The desired level is selected with the Amp Power Selector Switch locatedon the back panel. The LED is off when the “LO” (2 Watt) position is selected,and on when the “HI” (35 Watt) position is selected.
Pacific Crest Corporation – PDL Base User’s Guide4Figure 2 – PDL Base: Back ViewPDL Base Back Panel FeaturesAmp Power Selector Switch – An environmentally sealed toggle switch used forselecting the desired RF output level. The output power is 2 Watts when theswitch is in the “LO” position, and 35 Watts when in the “HI” position.Antenna Connector – An environmentally sealed panel mount 50 Ohm femaleBNC connector for external antenna connection.RS-232 / Power Connector – An environmentally sealed panel mount LEMO #1shell receptacle which contains contacts for a three-wire RS-232 serial bus andinput power connections. The following signals are available on the connector:RS-232 / Power Connector – continuedAmp Power Selector SwitchAntenna ConnectorRS-232 / Power Connector
Pacific Crest Corporation – PDL Base User’s Guide 5• Pin 1 -- Power• Pin 2 -- Ground• Pin 3 -- TX Data• Pin 4 -- Signal Ground• Pin 5 -- RX DataFigure 3 – PDL Base: RS-232 / Power ConnectorCompliance15432
Pacific Crest Corporation – PDL Base User’s Guide6The PDL BASE is designed to be compliant with many worldwide regulatoryrequirements, including FCC CFR Title 47 Part 90 and Part 15. Changes ormodifications not expressly approved by Pacific Crest Corporation could possiblyvoid the user’s authority to operate this equipment.Note: this equipment has been tested and found to comply with the limits for aclass A digital device, pursuant to part 15 of the FCC Rules. These limits aredesigned to provide reasonable protection against harmful interference when theequipment is operated in a commercial environment. This equipment generates,uses, and can radiate radio frequency energy and, if not installed and used inaccordance with the instruction manual, may cause harmful interference to radiocommunications. Operation of this equipment in a residential area is likely tocause harmful interference in which case the user will be required to correct theinterference at his own expense.Part 15 Compliance (for U.S.)The PDL Base complies with Part 15 of Title 47 of the Code of FederalRegulations. Operation is subject to the condition that this device does not causeharmful interference.Part 90 Compliance (for U.S.)The PDL Base is type accepted for operation under the rules and regulations ofParts 2 and 90 of Title 47 the Code of Federal Regulations. Refer to the labelaffixed to the unit for the FCC ID designator and other designators forinternational compliance.Licensing Requirement (for U.S.)The FCC regulates the use of the radio frequency spectrum. An FCC license ofauthorization must be obtained prior to operating the PDL Base radio modem. Itis the responsibility of the user to maintain current knowledge of the rules andregulations to assure compliance.Application for a license is made by submitting FCC form 600 along withevidence of frequency coordination (if required) and applicable fees to the FCC.
Pacific Crest Corporation – PDL Base User’s Guide 7The FCC vigorously pursues and prosecutes those who operate unlicensed radiostations. All radio operation must be authorized and licensed by the FCC.Without the cooperation of the radio user community, the airwaves would soonbecome overcrowded, making operations such as data transmission impossible.
8Pacific Crest Corporation - PDL Base User’s Guide8Electrical ConsiderationsPower SupplyThe PDL Base has power supply connections on pins 1 and 2 of the RS-232 /Power connector. Supply voltages greater than 16 Volts will cause the unit toshut off. Pins 1 and 3 are connections to the power ground and RS-232 interfacesignal grounds respectively. Note that these pins are tied to a common point onthe PDL BASE. If there is a potential for a ground path current loop due toimproper power application, we recommend a fusible link be inserted in the signalground to protect the PDL BASE.The input regulators of the PDL BASE are designed to protect the circuit fromdamage due to reverse polarity (up to 20V). Transient voltage protection is alsoprovided for circuit protection against ESD and other voltage transients.Data InterfaceThe data port is a simple 3-wire RS-232 electrical interface with signals fortransmitting data to and from the PDL BASE. It also provides a reference groundfor the TX and RX signals.
Pacific Crest Corporation – PDL Base User’s Guide 9Appendix A - Cables and ConnectorsRS-232 / Power ConnectorThe RS-232 / Power connector is a 5 pin LEMO #1 shell receptacle. Use PacificCrest part number A00470 as a standard programming cable.RF ConnectorThe RF connector is a 50 Ohm female BNC connector.Appendix B - Technical Specifications
10 Pacific Crest Corporation - PDL Base User’s GuideGeneralInterfaceRS-232 compatible interface configurable for 150 to 38,400 baud operation withone start, 8 data, optional parity, and one stop bit.Power SupplyPower supplied externally through the RS-232 / Power connector (9 - 16 VDC).Typical power consumption during TX is 110 Watts and 1.9 Watts during RX.Radio TransceiverFrequency RangesContact factory for currently available frequency ranges.Frequency ControlSynthesized 12.5 kHz resolution, ±2.5 ppm crystal stability standard.Channel SpacingChannel spacing 12.5 kHz and 25 kHz.RF Output Power2 Watt ±20% (LO power switch setting).35 Watt ±20% (HI power switch setting).ReceiverSensitivity -116 dBm or better (12dB SINAD). Selectivity -70 dB at 25 kHz.Modem
Pacific Crest Corporation – PDL Base User’s Guide 11Link Rate and Modulation19,200 bps and 9600 with 4 level FSK.9600 bps and 4800 with GMSK.Transmission ProtocolsTransparent, packet switched, fast asynchronous, digipeater, TRIMTALK ™.Forward Error Correction (FEC) and DetectionHamming code (12, 8) with data interleaving.EnvironmentalSize6.23" W x 2.77" H x 6.58" L(15.8 cm W x 7.0 cm H x 16.7 cm L)WeightStandard enclosure – 2.96 lbs. (1.34 Kg)Shock and VibrationPer IEC 68-2-55.Temperature Range-22° to 140° F (-30° to 60° C) Operating-67° to 185° F (-55° to 85° C) Non-operating

Navigation menu