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Table Of Contents

ADCP-75-116

Issue A

August 2001

1162643 Rev A

(Digivance™ Long Range Coverage Solution

Single Band SMR System

(Installation and Operation Manual

DRAFT

FCC ID: F8I-DVLRCSSMR

Summary of content (74 pages)

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FCC ID: F8I-DVLRCSSMR ADCP-75-116 Issue A August 2001 (Digivance™ Long Range Coverage Solution Single Band SMR System (Installation and Operation Manual DRAFT 1162643 Rev A
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ADCP-75-116 Issue A August 2001 (Digivance™ Long Range Coverage Solution Single Band SMR System (Installation and Operation Manual 1162643 Rev A
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ADCP-75-116 • Issue A • August 2001 • Preface COPYRIGHT © 2001, ADC Telecommunications, Inc. All Rights Reserved Printed in the U.S.A. REVISION HISTORY ISSUE DATE A 07/2001 REASON FOR CHANGE Preliminary TRADEMARK INFORMATION ADC and PowerWorx are registered trademarks of ADC Telecommunications, Inc. Digivance is a trademark of ADC Telecommunications, Inc. Procomm Plus is a registered trademark of Quarterdeck Corporation.
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ADCP-75-116 • Issue A • August 2001 • Preface TABLE OF CONTENTS Content Page ABOUT THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii RELATED PUBLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii ADMONISHMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ADCP-75-116 • Issue A • August 2001 • Preface TABLE OF CONTENTS Content 4 Page 3.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8 3.3 Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8 3.4 Fiber Optic Cable Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ADCP-75-116 • Issue A • August 2001 • Preface TABLE OF CONTENTS Content Page 4 COAXIAL CABLE CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2 5 WAVE DIVISION MULTIPLEXER INSTALLATION (ACCESSORY ITEM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2 6 OPTICAL CONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ADCP-75-116 • Issue A • August 2001 • Preface TABLE OF CONTENTS Content Page SECTION 6: GENERAL INFORMATION 1 WARRANTY/SOFTWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 2 SOFTWARE SERVICE AGREEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 3 REPAIR/EXCHANGE POLICY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ADCP-75-116 • Issue A • August 2001 • Preface ABOUT THIS MANUAL This installation and operation manual provides the following information: • An overview of the Digivance Long Range Coverage Solution (LRCS). • A description of the basic system components including the Host Unit (HU), Spectrum Transport Module (STM), Linear Power Amplifier (LPA), Remote Unit (RU) cabinet, and Digivance Element Management System (EMS). • System requirements for planning the Digivance LRCS installation.
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ADCP-75-116 • Issue A • June 2001 • Preface ADMONISHMENTS Important safety admonishments are used throughout this manual to warn of possible hazards to persons or equipment. An admonishment identifies a possible hazard and then explains what may happen if the hazard is not avoided. The admonishments — in the form of Dangers, Warnings, and Cautions — must be followed at all times.
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ADCP-75-116 • Issue A • August 2001 • Preface STANDARDS CERTIFICATION FCC: This equipment complies with the applicable sections of Title 47 CFR Part 90. UL/ULC: This equipment complies with UL and ULC 50 Standard for Enclosures for Electrical Equipment. This equipment provides the degree of protection specified by IP43 as defined in IEC Publication 529. FDA/CDRH: This equipment uses a Class 1 LASER according to FDA/CDRH Rules. This product conforms to all applicable standards of 21 CFR Part 1040.
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ADCP-75-116 • Issue A • June 2001 • Preface NEM NO NOC PC PCS RF RIM RU RX SMR STM TX UL ULC VAC VDC WECO WDM Page x © 2001, ADC Telecommunications, Inc.
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ADCP-75-116 • Issue A • August 2001 • Section 1: Overview SECTION 1: OVERVIEW 1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 2 SYSTEM OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 3 2.1 Basic Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ADCP-75-116 • Issue A • August 2001 • Section 1: Overview BTS RF CD-ROM WITH ANU SOFTWARE HOST UNIT CONTROLLER AREA NETWORK LAPTOP (LOCAL INTERFACE) BTS NETWORK OPERATIONS CENTER (REMOTE INTERFACE) REMOTE UNIT RF HOST UNIT DATA NETWORK REMOTE UNIT LAPTOP (LOCAL INTERFACE) BTS RS-232 ASCII RF RS-232 DIGIVANCE ELEMENT MANAGEMENT SYSTEM HOST UNIT REMOTE UNIT Fig 1-1-A Figure 1-1. System Overview Diagram 2.
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ADCP-75-116 • Issue A • August 2001 • Section 1: Overview 2.3 Handset Interface The RU interfaces with the handsets through an antenna. In the reverse path, the RU receives RF signals from each handset. The RU digitizes the RF signals and then converts them to digital optical signals for transport to the HU. In the forward path, the RU receives digital optical signals from the HU. The RU converts the optical signals to RF signals for transmission to the handsets.
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ADCP-75-116 • Issue A • August 2001 • Section 1: Overview 3 SYSTEM FUNCTIONS AND FEATURES This section describes various system level functions and features of the Digivance LRCS. 3.1 Fiber Optic Transport On an optional basis, the Digivance LRCS is available either with or without reverse path diversity. On non-diversity systems that do not use a WDM module, the HU is connected to the RU over a pair of single-mode fiber optic links. One link is used to transport the forward path optical signal.
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ADCP-75-116 • Issue A • August 2001 • Section 1: Overview BTS COAX FIBER OPTIC LINK HOST UNIT REMOTE UNIT FORWARD PATH PRIMARY REVERSE PATH DIVERSITY REVERSE PATH Fig 1-3-A Figure 1-3. Fiber Optic Transport with Diversity and Without WDM Module The optical wavelengths used in the system are 1550 nm for the forward path and 1310 nm for the reverse path.
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ADCP-75-116 • Issue A • August 2001 • Section 1: Overview Because separate forward and reverse path optical inputs and outputs are provided at the HU and RU, a Free Space Optics (FSO) system may be used in applications where it is desirable to bridge an open span and where it is impractical to lay a fiber optic cable. One FSO transceiver unit may be mounted on the HU side of the open span and the other FSO transceiver unit may be mounted on the RU side of the open span.
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ADCP-75-116 • Issue A • August 2001 • Section 1: Overview 3.4 Powering The HU is powered by 24 to 48 Vdc and must be hard-wired to a local office battery power source through a fuse panel. The RU is powered by 120 or 240 Vac (50 or 60 Hz) and must be hard-wired to the AC power source through a 20 Amp breaker box. The RU is pre-wired for 120 Vac operation but can be converted to 240 Vac through the installation of a 240 Vac outlet kit (accessory item).
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description SECTION 2: DESCRIPTION Content Page 1 INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2 2 HOST UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2 2.1 Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description 6 7 DIGVANCE ELEMENT MANAGEMENT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19 6.1 Primary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19 6.2 Service Interface Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20 6.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description 17.2 INCHES (437 mm) FRONT PANEL MOUNTING BRACKET (BOTH SIDES) 3.5 INCHES (89 mm) 11.4 INCHES (290 mm) 15.3 INCHES (389 mm) CABLE MANAGEMENT TRAY 16796-A Figure 2-1. Host Unit 2.2 Mounting The HU is intended for rack-mount applications. A pair of reversible mounting brackets is provided that allow the HU to be mounted in either a 19-inch or 23-inch EIA or WECO equipment rack.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description signal. In SMR installations, the HU can be connected directly to the BTS without a LRCS Interface Unit. The HU should be as close as possible to the BTS to minimize cable losses. 2.5 RF Signal Adjustments The HU is equipped with two digital attenuators for adjusting the signal levels of the forward and reverse path RF signals. The attenuators provide an attenuation adjustment range of 0 to 30 dB and can be set in 1 dB increments.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description 2.9 Powering The HU is powered by 24 to 48 Vdc power. The power is fed to the HU through a screw-down type terminal strip located on the rear side of the unit. Power to the HU must be supplied through a fuse panel such as the 20 position PowerWorx fuse panel (available separately) and the power circuit must be protected with a 3 Amp GMT fuse. An On/Off switch is provided on the HU front panel. 2.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description Table 2-1. Host Unit User Interface, continued REF NO FUNCTIONAL DESCRIPTION USER INTERFACE DESIGNATION DEVICE 3 PRIMARY PORT 2 SC connector Connection point for the reverse path primary fiber optic link. 4 SECONDARY PORT 3 SC connector Connection point for the reverse path diversity fiber optic link. 5 POWER Multi-colored LED (green/yellow) Indicates if the HU is powered (green) or unpowered (off). See Note.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description 3 REMOTE UNIT CABINET The RU cabinet, shown in Figure 2-3, is a NEMA-3R enclosure (with removable dust filter) that provides the following basic functions: • Houses the various electronic modules (STM and LPA) and accessories (battery back-up kit and WDM kit) and protects them from the weather. • Provides electrical interface connections for the STM and LPA modules.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description 3.1 Primary Components The RU cabinet consists of the enclosure, a mounting shelf for the STM and LPA modules, an AC power interface, a lightning protector, a mounting shelf for the battery back-up accessory, a fiber storage spool, and a mounting bracket for the WDM accessory. The RU cabinet is designed for use in either an outdoor or indoor environment.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description 23 mm) in diameter. A spool is provided directly above the fiber optic cable entry hole for storing excess pigtail slack. In a typical installation, the connectorized end of a mulit-fiber outside plant cable is routed into the enclosure through the cord connector and the individual fibers are broken out into pigtails. The pigtails are connected to the optical ports on the STM and the excess pigtail slack is stored on the fiber storage spool.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description DC power to the STM to maintain system operation. The battery can maintain operation of the RU for approximately 1 hour at 50 Watts. 3.8 Ventilation Vent openings are provided in the door and the rear side of the RU cabinet to permit air exchange for cooling. Air enters the enclosure through the opening in the door. A filter on the inside of the door removes dirt particles so that only clean air enters the enclosure.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description (2) AC POWER CORD (1) AIR INLET FILTER (3) CIRCUIT BREAKER RESET SWITCH (4) DOOR SWITCH (7) GFCI OUTLET (5) MODULE MOUNTING SHELF (6) BATTERY TRAY (8) FIBER SLACK SPOOL BOTTOM VIEW OF CABINET (9) ANTENNA CONNECTOR (10) FIBER CABLE CONNECTOR 16793-A (11) THREADS FOR AC CONDUIT FITTING (12) GROUNDING LUG Figure 2-4. Remote Unit Cabinet User Interface Page 2-11 © 2001, ADC Telecommunications, Inc.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description 4 SPECTRUM TRANSPORT MODULE The Spectrum Transport Module (STM), shown in Figure 2-5, serves as the handset servicing device for the Digivance LRCS. The STM provides the following basic functions: • Provides an RF interface to the handsets via the LPA and an external antenna. • Provides an optical interface to the HU. • Converts the digitized forward path optical signal to a digitized RF signal.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description 4.1 Primary Components The STM consists of an electronic circuit board assembly, power supply, duplexer, and fan assembly that are mounted within a powder-coated sheet metal enclosure. The metal enclosure provides a mounting point for the electronic components and controls RF emissions. Except for the fan unit, the electronic components are not user replaceable. The STM is designed for use within the RU cabinet.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description 4.6 Optical Link Connection Optical link connections between the STM and the HU are supported through either two (nondiversity unit) or three (diversity unit) SC-type optical connector ports. On non-diversity units, one port is used for connecting the forward path optical signal and the other port is used for connecting the primary reverse path optical signal.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description (1) PORT 1 CONNECTOR (2) PORT 2 CONNECTOR (3) PORT 3 CONNECTOR (7) SERVICE CONNECTOR (4) ON/OFF SWITCH (8-15) LED INDICATORS (5) AC POWER CONNECTOR (16) ALARM CONNECTOR (6) DC POWER CONNECTOR (17) DIVERSITY ANTENNA CONNECTOR (18) ANTENNA CONNECTOR 16801-A Figure 2-6. Spectrum Transport Module User Interface Table 2-3.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description Table 2-3. Spectrum Transport Module User Interface, continued REF NO USER INTERFACE DESIGNATION DEVICE FUNCTIONAL DESCRIPTION 8 AC POWER Multi-colored LED (green/red) Indicates if the STM is powered by the AC power source (green) or the battery back-up system (red). See Note.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description 16798-A Figure 2-7. Linear Power Amplifier 5.1 Primary Components The LPA consists of several electronic circuit board assemblies and two fan assemblies that are mounted within a powder-coated sheet metal enclosure. The metal enclosure provides a mounting point for the electronic components and controls RF emissions. Except for the fan units, the electronic components are not user replaceable. The LPA is designed for use within the RU cabinet.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description 5.3 Fault Detection and Alarm Reporting The LPA in conjunction with the STM detects and reports the following faults: power amplifier fault, output power fault, temperature fault, and fan fault. Various Light Emitting Diode (LED) indicators located on the front panels of both the STM and LPA turn from green to red or yellow if an LPA fault is detected. In addition, a digital display located on the LPA front panel provides various fault messages.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description (3) FAIL LED (1) RESET SWITCH (2) RF ON/OFF SWITCH (4) SHUTDOWN LED (5) DIGITAL DISPLAY 16804-A Figure 2-8. Linear Power Amplifier User Interface 6 DIGVANCE ELEMENT MANAGEMENT SYSTEM The Digivance Element Management System (EMS) is a network management tool that provides control and monitoring functions for the Digivance LRCS system.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description OR PLUS 16803-A CD-ROM WITH EMS SOFTWARE Figure 2-9. Alarm Network Unit The EMS software may also be installed on a PC-type lap-top computer (not provided). A laptop version of the EMS computer can be used as a portable network management tool for service and maintenance purposes.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description 6.4 EMS Software User Interface The EMS software provides two user interfaces: the Maintenance Interface (MI) and the Network Operation Center-Network Element Manager (NOC-NEM) interface. Both interfaces provide essentially the same functionality except only the MI can upgrade the HU/RU system with new system software. In addition, only the NOC-NEM interface can record and playback alarm data.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description Figure 2-11. NOC NEM Interface Typical Commands 7 SPECIFICATIONS Refer to Table 2-5 for the Digivance LRCS system specifications. All specifications apply after a five minute warm-up period. Table 2-5.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description Table 2-5. System Specifications, continued PARAMETER SPECIFICATION REMARKS RF Forward Path - SMR 800 MHz System bandwidth 15 MHz Frequency range 851 to 866 MHz Gain of host/remote link 85 ± 3 dB at band center and room temperature Gain flatness < ± 1.5 dB across freq. range < ± 1 dB variation across any 1.25 MHz channel Gain variation < ± 3 dB over temp and unit-tounit Gain adjustment Software adjustable in 30 steps of 1 ± 0.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description Table 2-5. System Specifications, continued PARAMETER SPECIFICATION REMARKS Propagation delay < 6 µs maximum Excludes fiber delay Variable propagation delay adjustability Software adjustable in 1µs increments over a 0 to 60 µs range Spurious < –110 dBm referred to input Intermodulation < –62 dBc System noise figure < 8 dB Composite RF output level –10 to –40 dBm, adjustable in 30 steps of 1 ± 0.
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ADCP-75-116 • Issue A • August 2001 • Section 2: Description Table 2-5. System Specifications, continued PARAMETER SPECIFICATION REMARKS Weather resistance NEMA-3R, removable dust filter Operating temperature –30º to 50º C (–22º to 122º F) Storage temperature –40º to 70º C (–40º to 158ºF) Humidity 10% to 90% No condensation External alarm connector Screw-type terminals External alarm inputs AC power connection 3/4- or 1/2-inch conduit Per local code or practice.
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ADCP-75-116 • Issue A • August 2001 • Section 3: Host Unit Installation SECTION 3: HOST UNIT INSTALLATION Content 1 Page BEFORE STARTING INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 1.1 System Plan Review . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 1.2 Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ADCP-75-116 • Issue A • August 2001 • Section 3: Host Unit Installation Reverse brackets for 23-inch racks Provide clearance for cooling 3 CHASSIS GROUND CONNECTION Stud on rear side of chassis Use #18 stranded copper wire Connect to approved earth ground source 4 COAXIAL CABLE CONNECTIONS With and without diversity N-type female connectors provided on unit 5 WAVE DIVISION MULTIPLEXER INSTALLATION (ACCESSORY ITEM) Rack mount Chassis and WDM module(s) 6 OPTICAL CONNECTIONS Installations with the WDM
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ADCP-75-116 • Issue A • August 2001 • Section 3: Host Unit Installation 8 SERVICE INTERFACE CONNECTION RS-232 Interface (connects to Digivance Element Management System computer) DB-9 female connector Straight-through cable provided 9 EXTERNAL ALARM SYSTEM CONNECTIONS Normally open and Normally closed dry contacts for major and minor alarms Six-terminal plug provided (screw terminals) Cat 3 or 5 wire 10 DC POWER CONNECTIONS Fuse panel required (ADC PowerWorx) - See fuse panel manual for installation pr
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ADCP-75-116 • Issue A • August 2001 • Section 3: Host Unit Installation Page 3-4 © 2001, ADC Telecommunications, Inc.
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation SECTION 4: OPERATION Content 1 2 Page BEFORE STARTING OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 1.1 Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 1.2 Readiness Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation 1.2 Readiness Check Before starting the turn-up process, inspect the complete LRCS system to verify that all components of the system are ready to be powered-up. This will ensure that no units of the system will be damaged during turn-up and that all existing systems will continue to function properly. 1.2.1 Host Unit Installation Checks Complete the following checks at the HU prior to starting the turn-up process: 1.
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation 2.1 Turn-Up Procedure Use the following procedure to turn-up the system: 1. Temporarily disconnect the external alarm system or notify the alarm system provider that testing is in progress. 2. If turning-up multiple HU and RU systems that have not been configured for operation before, temporarily disconnect the CAN cables from the NET IN and NET OUT ports of each HU.
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation View drop down menu Figure 4-1. Digivance Element Management System Main Window 9. Open the View drop down menu and select the “NotNamed/NotNamed” Host and Remote pair. The HOST Alarms display and the REMOTE Alarms display will open within the main window as shown in Figure 4-2. 10.
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation 11. Click on the HOST Config tab and on the REMOTE Config tab (see Figure 4-2). The HOST Config display and the REMOTE Config display will open within the main window. 12. Enter the Site Number and Site Name for both the HOST and the REMOTE unit. Refer to Section 2.3 for details. 13. Click on the HOST RF tab (see Figure 4-2). The HOST RF display will open within the main window. 14. Enter the Host Fwd Att (Forward Attenuation) values.
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation 2.2 Determine Baseline Forward Path Input Signal Level The level of the composite RF output signal at the FORWARD RF IN port at the HU will vary depending on the type of BTS, the cable loss, and the number of channels present. To interface with the HU, the baseline signal level of the composite forward path RF signal must be adjusted to fall within a range of –25 to –35 dBm.
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation BASE TRANSCEIVER STATION RECEIVERS TRANSMITTERS EXTERNAL ATTENUATOR BASELINE INPUT SIGNAL LEVEL (-25 to -35 dBm COMPOSITE) HOST UNIT ADJUSTMENTS TO OUTPUT SIGNAL LEVEL AS SET BY HOST REVERSE PATH ATTENUATOR 0 to 30 dB ATTENUATOR (HOST REV ATT) 0 to 30 dB ATTENUATOR (HOST FWD ATT) RF, OPTICS, AND CONTROL ADJUSTMENTS TO INPUT SIGNAL LEVEL AS SET BY HOST FORWARD PATH ATTENUATOR OPTICAL LINK REMOTE UNIT RF, OPTICS, AND CONTROL 0 to 30 dB AT
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation 8. Select an attenuator that is as close to the value calculated in step 7 as possible. Try to select a value that will place the baseline signal level of the composite input signal within the preferred range of –25 to –35 dBm. 9. Install the external attenuator in the coaxial cable that is connected to the FORWARD RF IN port at the HU. 10.
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation Figure 4-5. HOST Site Number Pop-Up Screen 3. Right-click on the HOST Site Name field (see Figure 4-4). The Site Name pop-up screen will open. Enter a unique name for the HOST. The name may be up to 32 characters long and must not contain any spaces. The name may include numbers, punctuation, and upper or lower case letters and must always begin with a letter. Click on OK to close the screen and make the changes take effect. 4.
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation Right-click here to open Host Fwd Att pop screen Figure 4-6. HOST RF Display 2. Right-click on the Host Fwd Att section of the display (see Figure 4-6). The Host Fwd Att pop-up screen will open as shown in Figure 4-7. Figure 4-7. Host Fwd Att Pop-Up Screen 3. Obtain the value of the baseline total composite input signal level as determined in step 10 of Section 2.2. 4.
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation Table 4-1.
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation 2.5 Enter Host Forward and Reverse Delay The forward and reverse delay function allows entry of from 0 to 63 µsec of delay in the forward and reverse paths. This feature is used when multiple systems are used to transport the same channel and there is a significant difference in the path delay between systems. Additional delay may be entered to balance the overall system delay.
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation Figure 4-9. Host Fwd Delay Pop-Up Screen 2.6 Determine Output Signal Level at STM Antenna Port The RF output signal level should be measured at the STM ANTENNA port to verify that maximum composite signal level does not exceed 5 watts per channel. Use the following procedure to verify if the power level is at the required level: 1. Verify that RF ON/OFF switch on the LPA in the OFF position. 2.
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation Note: To comply with Maximum Permissible Exposure (MPE) requirements, the maximum composite output from the antenna cannot exceed 1000 Watts EIRP and the antenna must be permanently installed in a fixed location that provides at least 6 meters (20 feet) of separation from all persons. 2.
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation Table 4-2. Maximum Composite Output Signal Levels NUMBER OF CHANNELS MAXIMUM OUTPUT SIGNAL LEVEL 1 37 dBm 2 40 dBm 3 41 dBm 4 43 dBm 5 44 dBm 6 or more 45 dBm Figure 4-11. Remote Fwd Att Pop-Up Screen 5. Enter the required attenuation value and click OK to close the pop-up screen and to make the changes take effect. 6. Verify that the appropriate RF output signal level appears in the RF Pwf-VSWR Low section (see Figure 4-10).
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation 2. Determine the overall gain and loss imposed on the signal by the antenna, antenna cable, and by the cables that connect the HU to the BTS. 3. Determine the amount of gain required to raise the reverse path signal to the level required at the BTS. 4. Click on the HOST RF tab. The HOST RF display will open within the EMS main window as shown in Figure 4-12.
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ADCP-75-116 • Issue A • August 2001 • Section 4: Operation 6. Enter the attenuation value that will provide the required gain. Refer to Table 4-3 for the attenuation values and the corresponding gain values. 7. Click OK to close the pop-up screen and to make the changes take effect. 8. Repeat the process for the diversity reverse path by right-clicking on the Host Div Rev Att section (see Figure 4-12) and then entering the required attenuation value in the Host Dive Rev Att pop-up screen. 9.
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ADCP-75-116 • Issue A • August 2001 • Section 5: Maintenance SECTION 5: MAINTENANCE 1 SYSTEM MAINTENANCE OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1 1.1 Scheduled Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1 1.2 Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ADCP-75-116 • Issue A • August 2001 • Section 5: Maintenance 3 FAULT ISOLATION AND TROUBLESHOOTING Troubleshooting guide 4 TEST PROCEDURES Procedures for common tests 4.1 Remote Unit Back-up Battery Voltage Test 4.2 Optical Loopback Test 4.3 Optical Power Test 5 MAINTENANCE PROCEDURES 5.1 Remote Unit Cabinet Filter Replacement Procedure 5.2 Host Unit Fan Replacement Procedure 5.3 Spectrum Transport Module Fan Replacement Procedure 5.
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ADCP-75-116 • Issue A • August 2001 • Section 6: General Information SECTION 6: GENERAL INFORMATION Content Page 1 WARRANTY/SOFTWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1 2 SOFTWARE SERVICE AGREEMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1 3 REPAIR/EXCHANGE POLICY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ADCP-75-116 • Issue A • August 2001 • Section 6: General Information 4 REPAIR CHARGES If the defect and the necessary repairs are covered by the warranty, and the applicable warranty period has not expired, the Buyer’s only payment obligation is to pay the shipping cost to return the defective Product. ADC will repair or replace the Product at no charge and pay the return shipping charges.
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ADCP-75-116 • Issue A • August 2001 • Section 6: General Information 7 CUSTOMER INFORMATION AND ASSISTANCE For customers wanting information on ADC products or help in using them, ADC offers the services listed below. To obtain any of these services by telephone, first dial the central ADC telephone number, then dial the extension provided below. The central number for calls originating in the U.S.A. or Canada is 1-800-366-3891. For calls originating outside the U.S.A.
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