Lars Corporation 80-100-281 J Company Practice Issue 1: September 1999 QuadHopper™ MODEL 9000 E1/DS1 SPREAD SPECTRUM 5.78 GHz DIGITAL MICROWAVE RADIO SYSTEM VOLUME 1 System Description This practice applies to the following equipment: Model Equip Issue Model Equip tissue 007-01784-000 1 041-02110-XXX 1 007-01794-001 1 $7021 1.
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Contents 1 Introduction 1.1 General .. 1.2 System Overview . 2. Digital Microwave Radio System 2.1 Applications 2.2 Features 2.3 Components .. . 2.4 Material Supplied 2.5 Material Required . 2.6 Optional Configuration 3. System Functional Overview 3.1 Spread Spectrum Frequency Plan 3.2 Customer E1/DS1 Connections 3-1 3-4 3.3 Controller/RF Signal Interface 3-4 3.4 Transmitter Overview 3-5 3.5 Receiver Overview 3-5 3.68 Controller Overview 3-6 3.7 Primary Power . 3-8 3.8 Alarms rain .. 39 4.
Torus BO-100-281 tissue 1, September 1988 Figures 1-1 Mode! 8000 Spread Spectrum 5.78 GHz Digital Microwave Radio System... . 1d 3% Model 9000 Radio Functional Block Disguise pes 32 32 Model 5000 Frequency Plan Ceres Sea Bd 3:3 Data Circuit Maintenance... 0.0. ..
Introduction 1 General This practice presents an overview of the functional operation, features, and applications of the Mode! 3000 E1/DS1 Spread Spectrum 5.78 GHz Digital Microwave Radio System. It also provides instructions for operating the radio in its common applications. 1.12 This paragraph is reserved for future issue changes. Practice Issue 1 applies to equipment listed in Section 10, Equipment Issue Information.
Digital Microwave Radio System 2 Applications The Model 9000 is an ideal solution for point-to-point spans where conventional connections provided by the public telephone network are either unavailable, impractical, or not cost-effective, These applications can include: Building to building communication across a campus Spans across public thoroughfares Urban links between separate facilities Drop and reinsertion points to long-haul backbones Cellular telephone site interconnections Emergency communications
Lars 80-100-281 issue 1, September 1899 2.28 2.31 241 Since the Modal 3000 complies with FCC Rules Part 15.247 and Canada 210, any number of radio links ‘can be put into operation as required without the need to notify the FOC or Industry Canada for licensing or operating changes. The low-power design of the radio scrutinizes radio frequency [RF radiation hazards, allowing it to be installed virtually anywhere that a clear path exists from antenna to antenna.
Section 2 Digital Microwave Radio System Table 2-A Model 9000 Ordering Information | Per | Descriptor Part No RF Module, High RF Module, Low Frag Xmt end Low Frag Xt and High Freq Rov, plus 4 x Freq FIFO, plus 4 x 02002107000 El Control Module Et Control Module RF Module, High RF Modular, Low Freq Xm and Low Frey Xt and High 9 Freq Rov, Pius 4 x 020-02108-001 Freq Rov, plus 4 x 020-02107-001 DE1 Control Module 0851 Control Module Spare RF Module, Spare RF Module, High Fray Xmt and | Q07-020G78-000 | Low Fre
System Functional Overview 3 The Model 9000 radio provides a digital interface that interconnects the customer E1 or DS1 signals to the Control Module and provides alarm relay contact and maintenance data connections for customer use. (A block diagram of the radii appears in Figure 3-1.} The customer's local V battery is used to power the Model 9000 units. The radio mounts indoors and is connected to an antenna via coaxial cable (for short runs} or elliptical wave guide (for dong runs).
Section 3 ~ System Functional Overview res &f50 wer ans FOB A$ AND BAND see une SER 8 rh ting seal ts, L420 Say Gx GUARDRAIL seeing hay En sks pow FE MIE ROUNDABOUT TX ins MH WESTBOUND ois 57.6 MSS EARTHS WE 76 dra west Round TX Figure 3-2.
Lars BO-100-281 3.2 Customer E1/DS1 Connections 3.21 Up to four customer E1 or DS1 lines connect to the Model 83000 at the controller, A standard RJ4BM {Am phenol 285-pair) connector is the mechanical interface for these connections. Refer to Treble 3-A for the SYDNEY interface connector pin assignments. Adapters are available on request. The RF module has equalization circuits that can be set for different line lengths {0-to 655 feet in five steps).
341 3.43 3.48 3 ~ System Functional Overview Transmitter Overview The Model 8000 transmitter consists of an E1/D81 multiplexer, 180AM {Quadrature Amplitude Modulation) modulator chip, dual D to A converter, filter ard amplifier, 140 MHz modulator, controller unit combiner, RF module combiner circuits, spreading circuits, up/down converter, power amplifier, TX filter, and transmittance circulatory.
Lars BO-100-281 issue 1, September 1998 3.55 in the spreader circuits, 8 detector detects the energy according to the input frequency spectral positions as determined by the pseudo noise sequence. The receiver control circuits generate early, timely, and last codes to correlate the receive signal, plus an uncorrelated signal that is used for AGC control. The widespread 70 MHz IF signal is then sent to the RF modules combiner circulate.
EES Cones SEA TERR ‘ BIER RACE i a SEMITE TERMINAL Clown wens AE WOOL flmemianndaiinl Indication ge ory i CMe: Erin ETE Figure 3-3. Data Circuit Maintenance LOCAL port CRT or PC OTE (DB-8 female} DTE (DB-26 male) pin pin 1. DCD CONS 1 2 RXD TXD 2 3 TXD RD 3 4 DIR RTS 4 5 soo ors 5 § DSR 4 DSR 6 7 RIS = BOND 7 8 CTs peo 8 9 Rl DIR. 20 Figure 3-4.
Lars 80-100-281 LOCAL port Pe OTE ([DU-9 female) DTE (DB-9 female) pin pin 1 peo Ben 1 7 RXD BXD 2 3 TAD OTR OTR 4 5 SEND SEND & 6 DSR DSR 8 7 RTS RTS 7 8 cts R90 Figures 3-8. LOCAL Port Cable Wiring {9-Pin to 9-Pin) REMOTE port MODEM OTE (DB-9 male) DCE (DB~25 male) pin pin 1 Co pep 8 2 BAD meets. XE 3 3 TXD D2 4 DIR crmomsmismmmimrssmibimmmemiesmionsos. TR. 20 5 DONS. SONG 7 6 DSR DSR © 7 RIS Mimi badminton. RTS 4 B CTE sat. OTE Figure 3-6. REMOTE Port Cable Wiring {9-Pin to &-Fin) 3.
Section 3 System Functional Overview Primary Power Two facility battery circuits provide redundant primary power input V, and V,} to the Model 9000. The 8000 control module has a power supply that converts input voltage to power local logic circuits. A single coaxial cable carries primary power from the controller to the RF module. Alarms The modem board, internal to the controller, has connections for standard Form A dry relay contact closures for visual and audible minor and major alarms.
Physical Characteristics 4 4.01 The Model 8000 system consists of two attached mechanical assemblies {refer to Figure 1-11. The Control and Radio Frequency (RF) Modules are designed for indoor use and can be installed in either # 18-inch or 23-inch rack. The divot devices are interconnected via a single coaxial cable. The RF module constricts to an antenna through a suitable coaxial cable lifeline {nee Lars Practice BO-801-281, Site Planning and Preparation).
SHE Performance Standards 5 The Lars GuadHopper™ provides performance equine to, or better than, 8 standard microwave radio fink or cable and conforms to EVOKES) performance standards as outlined by Licorice. A detailed site survey must be performed per Lars specification {refer to Lars Practice 80-601-281) and the system must be installed by trained, professional technicians.