CalAmp Wireless Networks GPDB GeminiPD User Manual Gemini PD Technical Manual

CALAMP WIRELESS NETWORKS INC. GeminiPD Gemini PD Technical Manual

preliminary updated user manual

GeminiPD+Mobile RadiomodemInstallation GuideVersion 1.06PRELIMINARYThe entire contents of this manual and the Radio Installation Softwaredescribed in this manual are copyright 2002 by DATARADIO Inc.Copyright DATARADIO Inc.December, 2002Part no.: 120 20120-106 Preliminary
Table of Contents1. PRODUCT OVERVIEW................................................................................................................................... 11.1 INTENDED AUDIENCE ....................................................................................................................................... 11.2 GENERAL DESCRIPTION .................................................................................................................................... 11.2.1 Features .................................................................................................................................................. 11.2.2 Configuration.......................................................................................................................................... 21.3 FACTORY TECHNICAL SUPPORT........................................................................................................................ 21.4 PRODUCT WARRANTY ...................................................................................................................................... 21.5 REPLACEMENT PARTS....................................................................................................................................... 21.5.1 Factory Repair........................................................................................................................................ 21.6 UNPACKING ...................................................................................................................................................... 22. INSTALLATION ............................................................................................................................................... 32.1 PLANNING THE INSTALLATION .......................................................................................................................... 32.1.1 Overview ................................................................................................................................................. 32.1.2 Location .................................................................................................................................................. 32.1.3 Cable Path............................................................................................................................................... 32.2 WARNINGS........................................................................................................................................................ 32.2.1 RF Radiation warning............................................................................................................................. 32.2.2 Interference with vehicular electronics................................................................................................... 32.2.3 Secure mounting...................................................................................................................................... 32.2.4 Explosive environments........................................................................................................................... 42.2.5 Installation in vehicles powered by liquefied gas. .................................................................................. 42.3 PHYSICAL UNIT................................................................................................................................................. 42.3.1 Recommended tools and supplies............................................................................................................ 42.3.2 Physical mounting of GeminiPD+ ............................................................................................................. 42.4 ELECTRICAL INSTALLATION .............................................................................................................................. 52.4.1 Electrical requirements........................................................................................................................... 52.4.2 Routing of power cable ........................................................................................................................... 52.5 ANTENNA ......................................................................................................................................................... 72.5.1 Recommended tools and supplies............................................................................................................ 72.5.2 Planning.................................................................................................................................................. 72.5.3 Antenna Installation................................................................................................................................ 82.6. COMPLETING THE PHYSICAL INSTALLATION. ................................................................................................ 82.7. CHECKING OUT NORMAL OPERATION ........................................................................................................... 83. OPERATING DESCRIPTION ......................................................................................................................... 93.1 FRONT & REAR PANELS ................................................................................................................................... 93.2 DTE PORT INTERFACE ................................................................................................................................... 103.2.1 RS-232 Interface Signal Levels............................................................................................................. 104. TROUBLE-SHOOTING AND TESTING ..................................................................................................... 114.1 EQUIPMENT REQUIRED ................................................................................................................................... 114.2 BASIC TESTS................................................................................................................................................... 114.3 ADDITIONAL TEST DETAILS ............................................................................................................................. 154.3.1 GPS Test................................................................................................................................................ 154.3.2 RF Data Link Test................................................................................................................................. 155. SPECIFICATIONS.......................................................................................................................................... 16FIGURE 1 - MOUNTING PLATE AND SLOT DIMENSIONS.................................................................................................... 5FIGURE 2 - BRACKET INSTALLATION.............................................................................................................................. 5
120 20120-106 Preliminary ii GeminiPD+ Installation GuideFIGURE 3 - DC POWER CONNECTOR.............................................................................................................................. 6FIGURE 4 - ANTENNA SPACING....................................................................................................................................... 7FIGURE 5 - FRONT AND REAR PANELS ............................................................................................................................ 9TABLE 1 - GEMINIPD+ LEDS INDICATIONS ................................................................................................................... 10TABLE 2 - RS-232 SIGNAL LEVELS.............................................................................................................................. 10TABLE 3 - TESTS, FULL CHANNEL UNITS..................................................................................................................... 12TABLE 4 - TESTS, SPECIAL & HALF CHANNEL UNITS .................................................................................................. 13APPENDIX 1 - "OFFICER REQUIRES ASSISTANCE" ALARM FUNCTION ........................................................................... 18
120 20120-106 Preliminary iii GeminiPD+ Installation GuideWhat's New in this versionHistoryVersion 1.06, December 2002• Introduction of xRC8FSK modulations.Version 1.05, November 2002• MM-reserved – R&D in progress.Version 1.04, November 2002• Introduction of GeminiPD+ in 900 MHz frequency band.Version 1.03, October 2002• Append 1.6 dB cable losses in Section 2.5 (FCC-MPE)Version 1.02, October 2002• Update Section 2.5 (FCC-MPE)Version 1.01, October 2002• Addition of 19.2kb/s bit rate for NPSPAC channels• Updated the RF exposure- related paragraphs 2.2.1, 2.5, 2.5.2Version 1.00, May 2002• Introduction of GeminiPD+ running data rate up to 32kb/s
120 20120-106 Preliminary iv GeminiPD+ Installation Guide Definitions The following terms are used throughout this document. Item Definition DCE Data Communications Equipment. This designation defines the direction (inputor output) of the various RS-232 interface signals. Modems are always wired asDCE. DTE Data Terminal Equipment. This designation defines the direction (input or out-put) of the various RS-232 interface signals. Most user equipment, as well asPCs, are wired as DTE. GCU GeminiPD Control Unit board GeminiPD High specs mobile radiomodem. Limited to 25.6 kb/s. PD = Parallel decode GeminiPD+ On-air compatible with GeminiPD. Runs up to 32 kb/s GeminiPD Lite GeminiPD without GPS feature HDX Half Duplex. A unit that uses separate transmit and receive frequencies, butwhich may not transmit and receive simultaneously. RS-232 Industry–standard interface for data transfer.WinRIS Windows © Radio Installation Software. This software allows basic tests andunit configuration.
120 20120-105 Preliminary GeminiPD+ Installation Guide11. PRODUCT OVERVIEWThis document provides the information re-quired for the installation, operation and veri-fication of the DATARADIO GeminiPD+.1.1 Intended AudienceThis document is designed for use by engi-neering design, installation, and maintenancepersonnel.1.2 General DescriptionGeminiPD+ is a mobile radiomodem aimed at thepublic safety and public utility markets to meetdemand for high speed and high throughput. Itintegrates all the necessary hardware for data-only vehicular installations up to but notincluding the laptop PC and its applicationsoftware.Example of applications are:1. Database inquiry systems.Small number of brief messages, (usuallyfrom the mobile station) with fairly longresponses.2. Computer-aided dispatch (CAD).Large number of messages, (usually fromthe base station) with very brief responses.3. Automatic Vehicle Location (AVL).Using built-in GPS receiver, determinesposition, speed and direction of fleetmembers.GeminiPD+ is made-up of:• A main transceiver• An auxiliary receiver for Parallel Decode(PD)• A power amplifier (40-Watt for UHF,35-Watt for 800 MHz,25-Watt for 900MHz models)• A Gemini Control Unit (GCU) with DSPdriven modem• An optional integrated OEM GPSreceiver.1 1 The Gemini PD+ Lite model has no GPS.1.2.1 Features• One-piece integrated design in a ruggeddie-cast aluminum chassis.• Parallel Decode (PD) technology featuringdual receivers for added decode sensitivityin multi-path and fading environments.• Sophisticated DSP-based modem designprovides added system performance, fewerretries and more effective throughput.• Automatic channel changing for improvedroaming capabilities.• Built–in, up to 16-channel flash –EEPROM programmable synthesized radiotransceiver with automatic channel se-lection.• Models with on-air data speeds andmodulation types as follows:Channel spacingModulationtype 12.5 kHzNPSPAC&900 MHz25 kHz9.6 kb/s 9.6 kb/s 9.6 kb/sDGMSK28.0 kb/s 8.0 kb/s 19.2 kb/s19.2 kb/s16 kb/s 16 kb/s 32 kb/sxRC4FSK214.4 kb/s 14.4 kb/s 25.6 kb/s24.0 kb/s 28.8 kb/s 48.0 kb/s21.6 kb/s 24.0 kb/s 43.2 kb/sXRC8FSK221.6 kb/s• 3 available user ports using standard RS-232 interface via built-in multiplexer.• Half-duplex operation.• Out-of-band signaling enables transmis-sion of GPS1 reports with no effect onsystem performance.• On-air compatible with GeminiPD at allspeeds (except 32 kb/s and xRC8FSKmodulations) and with MobilPac/R at9600 b/s and 19200 b/s (DGFSK)2• 3 times faster CPU and 4 times more DSPmemory for future speed upgrade 2 Networks must use common modulation, bit andbaud rates.
120 20120-105 Preliminary GeminiPD+ Installation Guide21.2.2 ConfigurationGeminiPD+ is factory configured based on eachcustomer network system requirements, usu-ally by Dataradio System Engineering. Con-figuration is not changeable in the field with-out notifying Dataradio.1.3 Factory TechnicalSupport The Technical Support departments ofDATARADIO provide customer assistance ontechnical problems and serve as an interfacewith factory repair facilities. They can bereached in the following ways: DATARADIO Inc. 5500 Royalmount Ave, suite 200 Town of Mount Royal Quebec, Canada H4P 1H7 Technical support hours: Monday to Friday9:00 AM to 5:00 PM, Eastern Time phone: +1 514 737-0020fax: +1 514 737-7883Email address: support@dataradio.com or DATARADIO Corp. 6160 Peachtree Dunwoody RD., suite C-200 Atlanta, Georgia 30328 Technical support hours: Monday to Friday8:30 AM to 5:30 PM, Eastern Time phone: 1 770 392-0002 fax: 1 770 392-9199 Email address: drctech@dataradio.com1.4 Product Warranty Warranty information may be obtained bycontacting your sales representative.1.5 Replacement Parts This product is not field serviceable, except bythe replacement of a complete unit. Special-ized equipment and training is required to re-pair the GCU board and radio modules. Contact Technical Support for service infor-mation before returning equipment. A Techni-cal Support representative may suggest a solu-tion eliminating the need to return equipment.1.5.1 Factory Repair When returning equipment for repair, youmust request an RMA (Returned MaterialAuthorization) number. The Tech Support rep-resentative will ask you several questions toclearly identify the problem. Please give therepresentative the name of a contact personwho is familiar with the problem, shouldquestions arise during servicing of the unit. Customers are responsible for shippingcharges for returned units. Units in warrantywill be repaired free of charge unless there isevidence of abuse or damage beyond the termsof the warranty. Units out of warranty will besubject to service charges. Information aboutthese charges is available from Technical Sup-port.1.6 UnpackingWhen ready for installation, carefully unpackyour GeminiPD+ kit (p/n 023 6000-001) ship-ping carton and identify each item as listedbelow:• One GeminiPD+• Installation mounting bracket• Power cable – 22 feet (6.7 meters)• Small parts kitIf damage has occurred to the equipment dur-ing shipment, file a claim with the carrier im-mediately.
120 20120-105 Preliminary GeminiPD+ Installation Guide32. Installation2.1 Planning the Installation2.1.1 OverviewTo ensure trouble-free, efficient installation,start by inspecting the vehicle to determine theoptimum position for GeminiPD+ and its anten-nas as well as the routing of all associated ca-bling and wiring.2.1.2 LocationOften, installations in cars are done in thetrunk, underneath the back window ledge or onthe trunk floor. In vans and small trucks, it isusually done in the back of the vehicle. Inlarge vehicles, it is often done in the frontcabin.Be sure to place the GeminiPD+ unit in such away that:• The LEDs can be seen (as an aid in trou-bleshooting)• Access to the antenna DE-9 connectors ispossible without removing the unit• Sufficient air may flow around the unit toprovide adequate coolingGeminiPD+ is not fully waterproof, therefore itshould be mounted sufficiently away from anopened trunk lid or opened tailgate, windowsor doors to avoid exposure to rain and/or snow.It also minimizes the chance that material canbe accidentally thrown on the unit or of some-one bumping against it.2.1.3 Cable PathTry to route the cables away from locationswhere they would be exposed to heat (exhaustpipes, mufflers, tailpipes, etc.), battery acid,sharp edges, mechanical damage or where theywould be a nuisance to automobile mechanics,the driver or the passengers.Keep wiring away from automotive computermodules, other electronic modules and ignitioncircuits to help prevent interference betweenthese components and radio equipment.Try using existing holes in firewall and trunkwall and the channels above and below or be-neath the doors, channels through doors andwindow columns that are convenient to runcables and wires.Whenever possible, install conduit in which torun the cables.2.2 WarningsBefore starting installation, review all of thefollowing warnings.2.2.1 RF Radiation warningRecommended safety guidelines for the humanexposure to radio frequency electromagneticenergy are contained in the Canadian SafetyCode 6 and the Federal CommunicationsCommission (FCC) Bulletin 65. Proper instal-lation of the transceiver antenna of GeminiPD+as summarized in section 2.5 will result in userexposure substantially below the recom-mended limits for the general public.Qualified personnel must do all antenna in-stallations. See paragraph 2.5.2 for recom-mended antenna positioning.Transmissions when persons or animals out-side the vehicle are within two feet of the an-tenna may result in radio energy radiationburns or related injuries.2.2.2 Interference with vehicularelectronicsCertain vehicle electronic devices may beprone to malfunction due to lack of protectionfrom radio frequency energy present whentransmitting. It includes, and is not limited to:- Electronic fuel injection systems- Electronic anti-skid braking systems- Electronic cruise control systemsIf the installation vehicle contains such equip-ment, consult the dealer for the make of vehi-cle and enlist his aid in determining if suchelectronic circuits will perform normally whenthe radio is transmitting.2.2.3 Secure mountingFor vehicle occupant(s) safety, mount Gem-iniPD+ securely so that the unit will not break
120 20120-105 Preliminary GeminiPD+ Installation Guide4loose in case of an accident or violent maneu-vers.2.2.4 Explosive environmentsOperation of vehicular radio transmitters inexplosive environments may be hazardous andconventional safety precautions must prevail.These include and are not limited to:- Transmitting while fuelling the vehicle.Do not carry fuel containers in the samecompartment as GeminiPD+.- Dynamite blasting caps may explode whentransmitting radio operation takes placewithin 500 feet. Always obey the “TurnOff Two-Way Radios” signs posted atsites where dynamite is being used.If transporting blasting caps:a) Carry the blasting caps in an appropriatemetal container having a soft cushioninglining.b) Suppress transmissions whenever theblasting caps container is being loaded orunloaded into or from the vehicle.Check applicable local bylaws.2.2.5 Installation in vehicles pow-ered by liquefied gas.GeminiPD+ installations in vehicles powered byliquefied petroleum gas with the LP-gas con-tainer in the trunk or other sealed-off spacewithin the interior of the vehicle must conformto the National Fire Protection AssociationStandard NFPA 58 which requires:- Space containing radio equipment shall beisolated by a seal from the space contain-ing the LP-gas container and its fittings.- Outside filling connections shall be usedfor the LP-gas container.The LP-gas container space shall be vented tothe outside of the vehicle.2.3 Physical Unit2.3.1 Recommended tools andsupplies• Electric drill for mounting holes• Hammer and center punch• Tie-wraps• Drills and circle cutters as needed accord-ing the size of screws (or nuts and bolts)used.• In-line “Power meter” capable of measur-ing forward and reflected power at the op-erating frequency of the radio.2.3.2 Physical mounting ofGeminiPD+Start by running all the cables (DC power, PCRS-232 as well as all antennas cabling) priorto mounting GeminiPD+ to assure the feasibilityof the planned cable routing. Be sure to leavesufficient slack in each cable so the GeminiPD+may be removed from the mounting bracketfor servicing with the power applied and theantenna attached.GeminiPD+ is ready for installation.Cautions:• When drilling mounting holes,be careful to avoid damagingsome vital part of the vehicle suchas fuel tanks, transmission hous-ing etc. Always check how far themounting screws extend below themounting surface prior to instal-lation.• Use of drill bit stops is highlyrecommended.• After drilling, remove allmetal shavings before installingscrews.• Do not overtighten self-tapping screws.
120 20120-105 Preliminary GeminiPD+ Installation Guide51. Once you have found a suitable mountingposition for GeminiPD+, hold the unit andthe unattached mounting bracket in theproposed mounting position and check thatthere is clearance behind the unit for theheatsink, cables, etc. Check that the posi-tion provides a large enough flat surfacethat the bracket will not be distorted wheninstalled.Figure 1 - Mounting plate and slot dimensions2. Using the installation bracket as a tem-plate, mark the four locations for drilling(see Figure 1). Again, ensure that drillingat the selected points is safe and will notcause damage.3. Indent the drilling positions with a centerpunch.4. Drill holes sized for the self-tappingscrews or for the nuts, bolts and lockwashers used.Caution: Slightly reduce the size of thedrilled holes when using self-tappingscrews in thin metal.Figure 2 - Bracket installation5. Install the bracket without distorting.6. Securely mount GeminiPD+ to the installedbracket using the four supplied 8x40 blackmachine screws.7. Drill any additional holes as required forrouting all cables and fit holes withsuitable grommets or bushings wheneverrequired.2.4 Electrical installation2.4.1 Electrical requirementsGeminiPD+ is designed to operate from a13.8Vdc nominal car battery (negative ground)and requires currents up to 15.0A. It will toler-ate a supply voltage range of 10.9 volts to 16.3volts.In vehicles with a 24 VDC electrical system(mostly in trucks), it is essential to provide asuitably rated 24/12 VDC converter to isolatethe unit from the battery and protect it againstexcessive voltage.Warnings:Always disconnect GeminiPD+’s DCpower lead before connecting asecond battery, using power fromanother vehicle or power boosting(e.g. when “jump starting” thevehicle).2.4.2 Routing of power cable1. Start by disconnecting the vehicle’s bat-tery unless specifically prohibited fromdoing so by the customer, vehicle manu-facturer, agent or supplier.Note:In this event, exercise extremecaution throughout the in-stallation and fit the fuse onlywhen the installation is com-plete.2. The 22 feet (6.7 meters) long power cableconsists of three wires attached to a Pack-ard Electric “Weather-Pack” connector(DC power Connector).2.5"6.0"1.0"0.2"
120 20120-105 Preliminary GeminiPD+ Installation Guide6The DC Power connector has:• At position “A”, the smaller redswitch-sense wire (commonly to ignition)• At position “B”, the blue ground wire• At position “C”, a larger red B+ DC powerwire (MUST be unswitched)Figure 3 - DC Power Connector3. Place this connector at GeminiPD+’s radiopower input location. Do not connect atthis time. See paragraph 2.6, “Completingthe physical installation”.4. Carefully route both the B and the C wiresto where the in-line fuse holder will be in-stalled, usually as close to the vehicle’sbattery as practicable. Ensure that leads donot chafe on any metal part(s). Secure thewires at several locations along theirlength.Caution:Use proper crimping tool.Common pliers are NOT ac-ceptable.Warning:The DC Power lead must beunswitched5. Insert the negative (blue) lead into one ofthe appropriate connector lug and crimpsolidly to force the metal contacts onto thewires.6. Repeat the step above for connecting thered DC power lead.7. Attach the positive lead at the batterypositive terminal. Attach the negative wireat the vehicle end of the battery groundcable.If the negative cable is connecteddirectly to the battery negative ter-minal, it should be fused in case offailure of the vehicle’s ground cable.Ensure tight and secure connections.8. Fasten the fuse holder and leads.9. Carefully route the A wire to where theconnection will be made for switch sens-ing.• Connect to “Ignition” if you wish tohave GeminiPD+ turning ON and OFFdependent on the vehicle’s ignitionkey.• Connect to “Accessory” if you wishGeminiPD+ to be available when theengine is not running, but still depend-ent on the ignition key.• Connect to a user-supplied controlswitch.• In installations equipped with a“ChargeGuard”, connect to the con-trolled-side of the ChargeGuard (re-membering that the DC Power leadmust NOT be switched).10. Make appropriate connections.Cautions:Where scraping to bare metal was re-quired, and at the battery posts wherewire ends and lugs may be exposed,apply anti-corrosion compound.Insert the fuse only when installationis complete and ready to test.11. At the GeminiPD+ position, neatly coil ca-ble slack and attach securely.ABCIGNITION(Small red wire)GROUND(Blue wire)13.8VDC B+ (Fused Red wire) SEAL(DO NOT REMOVE)
120 20120-105 Preliminary GeminiPD+ Installation Guide72.5 AntennaThe main transmitter antenna must be vehicle-mounted to provide a separation distance of 50cm or more from all persons and the antennagain must not exceed 5dBi with a 1.6dB cableloss.2.5.1 Recommended tools andsupplies• circle cutter, hole saw or socket punch forantenna• Mini-UHF Crimp tool2.5.2 PlanningReferring to Figure 4, GeminiPD+ commonlyuses three separate antennas:• “T” - Main transceiver -Constraints are the limit of 50 cm (seesection 2.5 above) and omni-directionalfactors• “R” - Auxiliary receiver –Constraints are the receiver spacing of atleast 5/8 λ (wavelength) from transceiverantenna and omni-directional requirements• “G” - Global Positioning System (GPS)*Constraints are TX spacing of at least 24-in/60.96 cm from all transmitting antennasand a clear view of the sky.For the optimum antenna spacing at the fre-quency you are using, consult System Engi-neering.For installation of ground-plane dependentantennas, the center of the metal surface usedfor mounting is preferable for best omni-directional pattern.For ground-plane independent antennas, in-stallation may be close to the edges of the sur-face.The GeminiPD+ Lite model has no GPS.Figure 4 - Antenna spacingInstall the antennas in one of the followingpositions:- Most preferred for all antennas: centerlineof roof. For transmitter antenna, it is theONLY acceptable position.- Less preferred for receiver antenna: trunklid, providing distance to transmitting an-tenna is respected whether lid is opened orclosed.- Much less preferred, but permissible forreceiver antenna: left or right rear fenders,just in back of rear window- Least preferred, but permissible for re-ceiver antenna: left or right front fenders,ahead of windshieldNote: Proximity to other vehicle-mountedantennas may cause mutual interfer-ence especially at higher frequencies.GMPE≥≥≥≥5/8λλλλ(UHF: 18"/46cm800MHz: 9"/23cm900MHz: 8”/21cm)RT50cm19.7in.≥≥≥≥24in.
120 20120-105 Preliminary GeminiPD+ Installation Guide82.5.3 Antenna Installation1. Route good quality 50-ohm coaxial cables(e.g. RG-223) from each of the selectedantenna positions to the position where theGeminiPD+ unit is mounted.2. Terminate the end at each of the antennapositions with the appropriate connectorfor the antenna used and make the connec-tion.3. At the GeminiPD+ position, cut the threecables to length and terminate with the ap-propriate plug. For the transceiver and theauxiliary cables, use a Mini-UHF crimpplug using an appropriate crimping tool.For the GPS, use a SMA connector.4. Positively identify the transceiver mini-UHF plug and connect to the left rear ofGeminiPD+.5. Positively identify the auxiliary receivermini-UHF plug and connect to the frontleft of GeminiPD+ to the RX position.6. Connect the SMA connector to the GPS*position below the auxiliary connector po-sition.7. Do not skip this last step, trust us; it is animportant one. To complete the installa-tion, tie-wrap together the auxiliary andthe GPS* antenna cables at a point abouttwo inches in front of the unit. It will bemuch easier hereafter to correctly identifywhich mini-UHF plug goes where. YouDO NOT want to cross the auxiliary plugwith the transceiver plug.2.6. Completing the physicalInstallation.To complete the physical installation and priorto testing GeminiPD+:• Connect DC Power cable’s connector toGeminiPD+’s until you hear a click as thetwo parts snap together.• Re-check that all other connections aresecure (antennas, PC, etc.)• Switch vehicle ignition ON.You are now ready to check for normal opera-tion and to run the Radio Installation Software(WinRIS) program for testing or trouble-shooting.2.7. Checking out Normal op-erationCheck that the vehicle ignition is ON.1. Check for proper operation of the Gem-iniPD+’s LEDs as per Table 1 in section 3.12. Using the WinRIS program and an in-linewattmeter, check forward & reverse powerto confirm main antenna installation (asper section 4).3. Using WinRIS, check the RF Data Linkwith a base station that can be heard (asper section 4.3.2.If user application and its base station areavailable, test the installation by goingthrough a normal sequence of transmittingand receiving messages.* The GeminiPD+ Lite model has no GPS.
120 20120-106 Preliminary GeminiPD+ Installation Guide93. Operating Description3.1 Front & Rear PanelsThe front panel includes:• One mini-UHF type female antenna connector for the auxiliary receiver• One SMA type female connector for the GPS receiver (not installed on GeminiPD+ Lite model)• Two LED indicators• Three DE-9F RS232 portsThe rear panel includes:• One mini-UHF type female antenna connector for the main transceiver• One 3-pin pigtailed DC Power connector with ignition senseFigure 5 - Front and rear panels®RX TXPWR PGM PC/SETUPDEV-1DEV-2DEV-3RXGPSGemini/PD6.000"2.000"
120 20120-106 Preliminary GeminiPD+ Installation Guide10Table 1 - GeminiPD+ LEDs indicationsGeminiPD+ LEDs indicationsPower-on Sequence (LEDs are paired) Normal Operation (LEDs are independent)PWR RX / TX Indication PWR Indication RX / TX IndicationRed Red Normal boot-up start(10 to 27 sec.) Green* Normal ready state Off No network activityAmber Off Then 8 seconds tocompleting boot-upNormalGreen Off Normal stateAmber* 1 Pulse/sec.Sufficient satellitesacquired by GPS Green Receiving packets“DBA sync” allows transmitRed Off Hardware failure Amber Receiving packets“DBA out-of-sync” preventstransmitErrorsSlowRed/Green Red Software failure(firmware erased) Red TransmittingSpecialFastRed/Green Red Programming inprogress* For 800 & 900 MHz models (using duty cycle limit) : PWR lit Green / Flashing Amber = normal indication (GPS 1pulse per sec.) PWR lit Amber / Flashing Green = exceeded duty cycle (GPS 1pps)3.2 DTE Port InterfaceFor all three ports:DE-9 Fpin # Function1DCD – from GeminiPD+, normally asserted2 RXD – data from GeminiPD+3 TXD – data to GeminiPD+4 DTR – to GeminiPD+, handshaking5 Ground6 DSR – from GeminiPD+, tied to VCCthrough current limiting resistor7 RTS - to GeminiPD+, handshaking8 CTS – from GeminiPD+, handshaking9 AUX - auxiliary input to GeminiPD+, (at port2: “Officer requires assistance” Alarm input)It may be activated by (normally open) drycontact pull-up to the port’s DSR output. Itmay also tolerate user pull-up to external+12 VDC (car battery), but an isolated drycontact is preferred due to the risk ofnoise-related false alarms caused by thevehicle’s electrical system.A +3 to +12 V signal at this pin will send aDMP “x” (On) message to the base.An open or ground signal will send a DMP“y” (Off) message.Messages are only sent when a signaltransition occurs.See Appendix “A” on page 18 for furtherdetails.We recommend the use of a shielded 9-wire ca-ble with all pins connected. These ports can beused for unit configuration, maintenance & ad-justment as well to connect user applications.3.2.1 RS-232 Interface Signal LevelsIn the descriptions of data signals, the followingconventions are used:Table 2 - RS-232 Signal LevelsTerm Alternates Signal level1 asserted, spacing +3 to +15 VOFF dropped, marking -3 to -15 V
120 20120-106 Preliminary GeminiPD+ Installation Guide114. Trouble-Shooting and TestingThe checks described below should be done at annual intervals or whenever deterioration in performanceis noted.4.1 Equipment Required• 13.8 VDC (nominal) car battery, or13.8 VDC/20A regulated power supply (In the case the unit is not installed in a vehicle)• In-line watt meter (50W range)• Radio service monitor (IFR or equivalent).• Cable with mini-UHF male connector to connect GeminiPD+ to the service monitor.• WinRIS version 3.11 or later*4.2 Basic TestsRecommended checks:1. Transmit and Reverse power output2. Carrier frequency error3. Frequency deviation4. Receivers RSSI Check5. RF Data Link test between a Gemini and a base station.6. GPS test (not required on GeminiPD+ Lite model).- Refer to Table 3 and Table 4 for checks 1 to 5.- Refer to paragraph 4.3.1 for check 6.Important note: Before proceeding make sure that the service monitor has been recently calibratedand has warmed up for at least the time specified by its manufacturer.Some reported frequency and deviation problems have actually been erroneous indications from servicemonitors that have not adequately warmed up. This is particularly likely when field service is done dur-ing winter months* To find out how to launch the Windows-based software alignment and system-testing tool WinRIS,please refer to the readme.txt file on the application’s installation diskette. For functional details of thenumerous buttons and menu-selectable items available, please refer to the program’s context sensitivehelp. It is also possible to access the help information via the F1 key.
120 20120-106 Preliminary GeminiPD+ Installation Guide12 Table 3 - Tests, Full Channel UnitsCHECKLIST ASTEP ACTION EXPECTED RESULTS at25°°°°CMEASURE WITH IF NOT?GeminiPD+ units are set and characterized at the factory to optimize performances. It is not recommended to try to readjust the units.1Power-up LED Sequence as per Table 1 - GeminiPD+ LEDs indications2Connect and save configPress WinRIS Get button as per WinRIS Help content3Main transceiver OutputPowerPress TX (Unmod)UHF: 40 watts800MHz: 35 wattsboth +10%, -10%Factory-settable down to 10watts (5 watts for 800MHzmodel) as per customer re-questService monitorset to read poweror50W in-line watt-meterRefer to factory technicalsupport.4Main transceiver ReflectedPowerPress TXON (Unmod)< 5% of forward power or asspecified by System Eng. 10W in-line watt-meter Check for bad connections,damaged coax cable, etc.5Carrier Frequency ErrorPress TX (Unmod) ± 300 Hz Service monitorset to read fre-quency errorRefer to factory technicalsupport.Speed UHF 800 US 800 CA48.0kb/s ±5.0 ±3.5 ±3.543.2kb/s ±5.1 ±4.1 ±4.132.0 kb/s ±4.3 ±3.6 ±3.625.6 kb/s ±4.0 ±3.7 ±3.719.2 kb/s ±4.0 ±4.0 ±4.09.6 kb/s ±3.0 ±3.0 ±3.04TX Deviation (in kHz)Press TXON (Modulated) Carrier will be modulated witha 1 kHz tone.Tolerance is +5%, -10% for all bit rates.Service monitor setto read deviation (IF filter set to Midor 30 kHz position)Refer to factory technicalsupport.5RF Data Link testUse the addressing function’s“Send” button to dynamicallytest transmissionsLook for“Delivery confirmed” on theWinRIS Status bar.Refer to section4.3.2 and to Win-RIS Help content.Check on the WinRIS RSSI bargraph if the base station is withinrange (i.e. better than -107dBm)orRefer to factory technicalsupport.6Set the service monitor to generate at the unit antenna jack the RF levels mentioned below. The carrier generatedshould be modulated with a 1.0 kHz tone at deviation as per step 4 above.7Main Rec. RSSI checks-70dBm-110dBm-120dBm- 70 dBm +/-3-110 dBm +/-3-120 dBm +/- 3 WinRIS bar graph8Aux Receiverrepeat as per step 7 same as step 7 WinRIS bar graphThe RSSI checks give a gen-eral indication of receivers'healthRefer to factory technicalsupport only if RX data per-formance degradation is no-ticed combined to out of tol-erance RSSI readings.1 (unless you have set a lower value). Note that readings less than 40 watts (UHF model),35 watts (800MHz model) or 25W(900MHz model) may be due to losses in cables used for testing. Check also your wattmeter frequency calibration curve. Do notbe too ready to condemn the transmitter.
120 20120-106 Preliminary GeminiPD+ Installation Guide13Table 4 - Tests, Special & Half Channel UnitsCHECKLIST BSTEP ACTION EXPECTED RESULTS at25°°°°CMEASURE WITH IF NOT?GeminiPD+ units are set and characterized at the factory to optimize performances. It is not recommended to try to readjust the units.1Power-up LED Sequence as per Table 1 - GeminiPD+ LEDs indications2Connect and save configPress WinRIS Get button as per WinRIS Help content3Main transceiver OutputPower1Press TX (Unmod)UHF: 40 watts800MHz: 35 watts900MHz: 25 wattsall +10%, -10%;Factory-settable down to 10watts as per customer requestService monitor set toread poweror50W in-line wattmeterRefer to factory technicalsupport.4Main transceiver ReflectedPowerPress TXON (Unmod)< 5% of forward power or asspecified by System Eng. 10W in-line wattmeter Check for bad connections,damaged coax cable, etc.5Carrier Frequency ErrorPress TX (Unmod) ± 300 Hz Service monitor set toread frequency error Refer to factory technicalsupport.Special channel unitxRC8FSK 800 US(NPSPAC) 900 US28.8kb/s ±3.2 ±2.824.0kb/s ±3.4 ±3.421.6kbps -±3.7xRC4FSK 800 US 900 US19.2 kb/s ±2.1 ±2.116.0 kb/s ±2.4 ±2.4DGFSK 800 US 900 US9.6 kb/s ±2.5 ±2.58.0 kb/s ±2.5 ±2.5Half channel unitxRC8FSK UHF 800 US 800 CA24.0kb/s ±2.5 ±2.5 ±2.521.6kb/s ±2.9 ±2.9 ±2.9xRC4FSK UHF 800 US 800 CA16.0 kb/s ±1.9 ±1.9 ±1.914.4 kb/s ±2.3 ±2.3 ±2.3DGFSK UHF 800 US 800 CA9.6 kb/s ±2.5 ±2.5 ±2.58.0 kb/s ±1.5 ±1.5 ±1.54TX Deviation (in kHz)Press TXON (Modulated) Carrier will be modulated witha 1 kHz tone.Tolerance is +5%, -10% for all bit rates.Service monitor set toread deviation (IF filter set to Mid or30 kHz position)Refer to factory technicalsupport.
120 20120-106 Preliminary GeminiPD+ Installation Guide145RF Data Link testUse the base station addressfunction and “Send” button todynamically test the linkLook for“Delivery confirmed” on theWinRIS Status bar.Refer to section4.3.2 and toWinRIS Helpcontent.Check on the WinRIS RSSI bargraph if the base station is withinrange (i.e. better than -107dBm) orRefer to factory technical support.6Set the service monitor to generate at the unit antenna jack the RF levels mentioned below. The carrier generatedshould be modulated with a 1.0 kHz tone at deviation as per step 4 above.7Main Receiver RSSI checks-70dBm, -110dBm, -120dBm - 70 dBm +/-3 dB-110 dBm +/-3 dB-120 dBm +/- 3 dBWinRIS bargraph8Aux. Receiver RSSI checksrepeat as per step 7 same as in step 7 above WinRIS bargraphThe RSSI checks give a general indi-cation of receivers' healthRefer to factory technical supportonly if RX data performance degra-dation is noticed combined to out oftolerance RSSI readings.1 (unless you have set a lower value). Note that readings less than 40 watts (UHF model) , 35 watts (800MHz model) or 25W (900MHzmodel) may be due to losses in cables used for testing. Check also your wattmeter frequency calibration curve. Do not be too ready tocondemn the transmitter.
120 20120-106 Preliminary GeminiPD+ Installation Guide154.3 Additional test details4.3.1 GPS TestAbout three minutes after ignition is turned-on,the PWR LED on the GeminiPD+ front panelshould flash in amber color at the rate of onepulse per second.1 This indicates that the GPShas acquired the sky position of a sufficientnumber of satellites to arrive at a ground posi-tion solution.If the GPS has a good view of the sky and stillhas not generated any position solution withinthree minutes (it may take up to 10 minutes ormore if the sky view is partially blocked.), thefollowing trouble-shooting procedures should beundertaken to isolate the fault:1) Disconnect the GPS antenna cable connectorfrom the Gemini radio and check for + 5VDC on the center pin of the GPS antennaconnector on the radio using a Digital volt-meter (DVM). If the voltage is present, donot reconnect the cable and proceed to step 2.2) With the DVM, measure resistance betweenthe shell and the center conductor of the GPScable, resistance should be between 100 and300 Ohms, if it measures open or short cir-cuit the GPS antenna is either a passive an-tenna which is the WRONG type, or a defec-tive active antenna, replace with a knowngood active antenna.3) Connect the new antenna to Gemini and waitabout three minutes for the POSITIONACQUIRED indicator to start flashing onGeminiPD+, if not, the Gemini radio or itsGPS receiver is defective 1 Lit green and flashing amber for the 800MHz & 900MHzmodels under duty cycle limit.4.3.2 RF Data Link TestA link test between a mobile and a known basestation can be done using the WinRIS "Address"and "Send" functions. The “Address” and “De-vice” fields, the “Send” button and the “Chat”message screen are used to send messages tospecific mobile or base or to carry out RF test.Start by entering the address of the mobile (orbase station) you wish to send a test message toor test:1- Specify the address:Addresses may be entered by typing directlyin the “Address” field in two ways:- Numerically, the valid address range is1-126.- As an “Alpha-Mapped-Nibble” (AMN) ad-dress, consisting of upper case letters in therange A-P. The valid address range is A toGN.- The base address is usually: 1.- The program may display one of the fol-lowing messages on the status bar:- For Paragon products:“address is not in AMN or number format”- For mobile products:“address is not in the range A – GN”In either case, check that the address entered iswithin the acceptable range, is of a valid formatand correctly typed.2- Enter Device number of mobile/base station3- Press the Send button.The Chat window reports “Sent to xx mobile”(where xx is mobile name).If test is successful:Status line reports “Delivery confirmed.If test unsuccessful:Chat window reports “Waiting”,Then the Status line reports “Delivery Failed”.
120 20120-106 Preliminary GeminiPD+ Installation Guide165. SpecificationsGENERALUHF 800 MHz 900 MHzFrequency 403 - 460MHz1,450 - 512 MHz TX 806 - 824 MHz,RX 851 - 869 MHz TX 896 - 902 MHz2,RX 935 - 941 MHzChannel spacing 12.5 or 25 kHzFrequency Control Digital Synthesizer / uControllerFrequency Stability 1.5 ppmOperating temperature -30°C to +60°C (25°C nominal) @ 95% non-cond. RHModes of Operation Half DuplexNumber of channels 16 internally stored, flash-EEPROM programmableSupply voltage 13.6Vdc nominal (negative ground)10.9 – 16.3 VDCCircuit Protection 15 Amp fuse external,Internal crowbar diode for reverse polarity protectionRX Current at 13.6 VDC < 650 mA Standby (with GPS receiver)TX Current at 13.6 VDC < 15 ATX/RX separation any, 5 MHz typical 45 MHz typical 39 MHz typicalNominal Dimensions 7.1” D x 6.0” W x 2.0” HWeight: < 4.5 lbs.RF input/output Impedance 50 ohms nominalRF connector Main TX/RX: mini-UHF femaleAuxiliary RX: mini-UHF femaleGPS RX: SMA female (Not installed for GeminiPD+ Lite version)Interface connector 3x DE-9F D-subminiatureRECEIVERSensitivity (12 dB SINAD) -116 dBm (< 0.35 µV) *Adjacent channel rejection(Selectivity) 75 dB @25 kHz, 65 @ 12.5 kHzIntermodulation rejection 75 dBFM hum & noise ratio 40 dB @12.5 kHz, 45 dB @ 25 kHz *Spurious ResponseRejection 80 dBConducted spurious -57 dBm* psophometrically weighted filterTRANSMITTERPower output UHF = 10-40 watts 800 MHz = 10-35 watts 900 MHz = 10-25 wattsDuty cycle limit 25% (800MHz) 33%(900MHz) @ full power, 30 secs. max. TX time (subject to FCC MPE limit)Conducted Spurious -80 dBcFrequency stability 1.5 ppmFM hum and noise ratio 40dB @ 1.5 kHz deviation, 45 dB @ 3.0 kHz deviationAttack time < 10 msOperation Half duplex 1 WARNING:The frequency band 406 to 406.1 MHz is reserved for use by distress beacons and should notbe programmed into the unit.2 WARNING: 901-902 MHz is reserved for use outside US/Canada.
120 20120-106 Preliminary GeminiPD+ Installation Guide17Data rates andModulation typeDGFSK (8000 b/s, 9600 b/s, 19200 b/s)SRRC4FSK (14400 b/s, 16000 b/s,19200b/s, 25600 b/s)RC4FSK (32000 b/s: GeminiPD+ only)xRC8FSK (48000 b/s, 43200 b/s,28800b/s, 24000 b/s,21600b/s: GeminiPD+ only )UHF 800 MHz 900 MHz–112 dBm at 19200 b/s fullchannel –112 dBm at 19200 b/sfull channel –TBD at 16000 b/s halfchannel–110 dBm at 25600 b/s fullchannel –109 dBm at 25600 b/sfull channel –TBD at 14400 b/s halfchannel–107 dBm at 32000 b/s fullchannel –107 dBm at 32000 b/sfull channel –TBD at 9600 b/s halfchannelPacket Error Rate(for < 1% error, withParallel Decode, at Fc)TBD8FSK–TBD dBm at 24000 b/s halfchannel –112 dBm at 16000 b/sNPSPAC channel –TBD at 8000 b/s halfchannel–TBD dBm at 43200 b/s fullchannel –TBD dBm at 28800 b/sNPSPAC channel TBD dBm at 21600 b/shalf channel–TBD dBm at 48000 b/s fullchannel –TBD dBm at 48000 b/sfull channel –TBD dBm at 24000 b/shalf channelProtocol Dataradio Proprietary DBA with OOB AAVL supportDISPLAY and CONTROLS2 status LEDs RX/TX, PWREnvironmental MIL. spec.Environment Categories MIL Spec. 810E OtherMethod ProcedureLow Pressure Operations 500.3 IIHigh Temperature Operations, Storage 501.3 I(A1), IILow Temperature Operations, Storage 502.3 I(C3), II (C1)Temperature Shock Transfer of equipment 503.3 I(AI,C2)Solar Radiation Heat effects 505.3 IRain1Drip rain 506.3 II IEC IP54 only IIHumidity1Induced, Aggravated 507.3 II,IIIDust1Blowing dust 510.3 I IEC IP54Vibration Ground Mobile 514.4 I(8) EIA RS-204C ForestryShock Functional, Bench handling 516.4 I,VI EIA RS-204CFCC / IC CERTIFICATIONS EMISSION DESIGNATORSFCC IC (DOC) kb/s Bauds Modulation UHF 800MHz 900MHzUHF EOTGPDA 773195525A 19.2 19200 DGMSK 15K0F1D 15K0F1D -16.0 16000 DGMSK 15K3FID 15K3F1D -800 MHz EOTGPDB 773195643A 9.6 9600 DGMSK 8K60FID 8K60F1D 10K2F1D8.0 8000 DGMSK - - 8K75F1D900 MHz EOTGPD9 PENDING 32.0 16000 RC4FSK 16K5F1D 15K6F1D -25.6 12800 SRRC4FSK 15K6F1D 15K6 / 11K5F1D -19.2 9600 SRRC4FSK - 16K0 / 10K2F1D 9K92F1D16.0 8000 SRRC4FSK 8K17F1D 10K0F1D 10K7F1D14.4 7200 SRRC4FSK 8K67F1D 11K0F1D 11K8F1D48.0 16000 xRC8FSK 17K0F1D 14K7F1D -43.2 14400 xRC8FSK 16K4F1D 14K7F1D -28.8 9600 xRC8FSK - 11K2F1D 10K2F1D24.0 8000 xRC8FSK 8K17F1D 11K0F1D 11K4F1D21.6 7200 xRC8FSK 9K67F1D - 11K8F1D 1 MIL Specification not guaranteed with GeminiPD Lite version.
120 20120-106 Preliminary GeminiPD+ Installation Guide18Appendix 1 - "Officer Requires Assistance" alarm functionThe contents of this appendix are also available as Technical Instruction Sheet 009 (TIS009),document part number 122 20110-009 dated December 20, 2000.OverviewThe DTE Port Interface pin 9 (AUX) on DEV-2 is used for the “Officer Requires Assistance”alarm function.Intended AudienceThis document is designed for use by System Integrators.Physical ConnectionThis auxiliary input may be activated by (normally open) dry contact pull-up to the port’s DSRoutput. It can also tolerate user pull-up to external +12 VDC (car battery), but an isolated drycontact is preferred due to the risk of noise-related false alarms caused by the vehicle’s electricalsystem.A +3 to +12 V signal at this pin will send a DMP “x” (On) message to the base.An open or ground signal will send a DMP “y” (Off) message.Messages are only sent when a signal transition occurs (debounced for approximately 100 ms).OperationWhen using GeminiPD+ or GeminiPD+ Lite products, activating the “Officer Requires Assistance”alarm input starts emergency communications:• The modem creates DMP “x” or “y” messages.• Any other pending message(s) will be failed to avoid delaying the alarm message on accountof lower priority traffic and to remove non-emergency messages from duty-cycle manage-ment (if applicable). In the case of a “q” message, a D-NAK* will be immediately returned.• Base and Channel hunt will take place for the usual number of retries per base (according toconfiguration) but will cycle forever until D-ACKed1 or Reset1.• Lack of base DBA synch will not prevent transmission to maximize the chance that a basegets the alarm signal. DBA “Freewheel” mode will be forced until the alarm is acknowl-edged. 1 For details on DMP terms, refer to DMP 1.5 manual, version 4.0

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