ADC Telecommunications DVICS1900-1 Digivance 1900 MHz Indoor Coverage Solution User Manual

ADC Telecommunications Inc Digivance 1900 MHz Indoor Coverage Solution

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ADCP-75-110 Issue 2B July 2001 Digivance™ 800/1900 MHz Indoor Coverage Solution Installation and Operation ManualDRAFT1175170 Rev A FCC ID: F8I-DVICS1900-1

ADCP-75-110 • Issue 2B • July 2001 Page ii COPYRIGHT 2001, ADC Telecommunications, Inc.All Rights ReservedPrinted in the U.S.A.REVISION HISTORY ISSUE DATE REASON FOR CHANGE Issue 104/2001 OriginalIssue 206/2001 Changes in LED operation, new power cable maximum length recommendations, and update tospecifications tableIssue 2B 07/2001 Updated to cover 1900 MHz version of productTRADEMARK INFORMATION ADC and FiberGuide are registered trademarks of ADC Telecommunications, Inc.Digivance is atrademark of ADC Telecommunications, Inc.LC is atrademark of Lucent Technologies Inc.TORX is aregistered trademark of Textron, Inc.DISCLAIMER OF LIABILITY Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice.In noevent shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits and ADC furtherdisclaims any and all liability for indirect, incidental, special, consequential or other similar damages. This disclaimer ofliability applies to all products, publications and services during and after the warranty period.This publication may be verified at any time by contacting ADC’s Technical Assistance Center at 1-800-366-3891, extension63475 (in U.S.A. or Canada) or 952-946-3475 (outside U.S.A. and Canada), or by e-mail to bcg_tac@adc.com.ADC Telecommunications, Inc.P.O. Box 1101, Minneapolis, Minnesota 55440-1101In U.S.A. and Canada: 1-800-366-3891Outside U.S.A. and Canada: (952) 938-8080Fax: (952) 946-3292

ADCP-75-110 • Issue 2B • July 2001 Page iii 2001, ADC Telecommunications, Inc.TABLE OF CONTENTS Content Page 1 SYSTEM FUNCTIONAL OVERVIEW AND UNIT DESCRIPTIONS ........................................ 1 1.1 System Functional Overview ....................................................... 1 1.2 Digital Host Unit Description ....................................................... 3 1.3 Digital Remote Unit Description ..................................................... 7 1.4 Digital Expansion Unit Description ................................................... 9 1.5 Terms and Definitions............................................................12 1.6 Specifications .................................................................13 2 INSTALLATION PLANNING AND SYSTEM DESIGN................................................16 2.1 Base Station Interface Requirements..................................................16 2.2 Locating and Mounting Requirements .................................................18 2.3 Powering Requirements ..........................................................19 2.4 Optical Options and Requirements ...................................................20 2.5 Coaxial Cable Requirements .......................................................20 2.6 System Expansion Planning........................................................20 2.7 DRU Antenna Options ............................................................21 2.8 External Alarm System Reporting Requirements ..........................................23 2.9 Frequency Band Selection Requirements (1900 Mhz) ......................................23 2.10 Maintenance Requirements........................................................24 2.11 System Design Recommendations ...................................................24 3 DIGITAL HOST UNIT INSTALLATION PROCEDURE................................................27 3.1 System Plan Review and Pre-Installation Cable Routing .....................................27 3.2 Tools and Materials .............................................................27 3.3 Unpacking and Inspection .........................................................28 3.4 Frequency Band Selection Procedure (1900 Mhz DHU Only) .................................28 3.5 Mounting Procecure ............................................................29 3.6 Chassis Ground Procedure.........................................................32 3.7 Coaxial Cable Connections ........................................................33 3.8 Ports 1–6 Optical Connections ......................................................34 3.9 DC Power Connections ...........................................................35 3.10 Exterma; Alarm System Connections ..................................................37 3.11 AC Power Connections ...........................................................38 3.12 Create As-Built Drawing ..........................................................39 4 SYSTEM OPERATION ..................................................................40 4.1 Tools and Materials .............................................................40 4.2 Turn-Up System and Verify Operation .................................................40 4.3 Correct Installation Problems.......................................................43 4.4 Test System Performance .........................................................45 5 SYSTEM MAINTENANCE PROCEDURES ......................................................46 5.1 Tools and Materials .............................................................46 5.2 Fault Detection and Alarm Reporting..................................................46 (continued)

ADCP-75-110 • Issue 2B • July 2001 Page iv 2001, ADC Telecommunications, Inc.TABLE OF CONTENTS Content Page 5.3 Fault Isolation and Troubleshooting.................................................. 47 5.4 Test Procedures ............................................................... 50 5.5 DHU or DEU Fan Replacement...................................................... 54 6 GENERAL INFORMATION ............................................................... 57 6.1 Warranty/Software ............................................................. 57 6.2 Software Service Agreement....................................................... 57 6.3 Repair/Exchange Policy .......................................................... 57 6.4 Repair Charges................................................................ 57 6.5 Replacement/Spare Products ...................................................... 58 6.6 Returned Material.............................................................. 58 6.7 Customer Information and Assistance................................................. 58

ADCP-75-110 • Issue 2B • July 2001 Page v 2001, ADC Telecommunications, Inc.ABOUT THIS GUIDE This installation and operation manual provides the following information:• An overview of the Digivance Indoor Coverage Solution (ICS) and adescription of thebasic system components including the Digital Host Unit (DHU), Digital Expansion Unit(DEU), and the Digital Remote Unit (DRU).• System requirements for planning the Digivance ICS installation.• Procedures for installing the DHU.• Procedures for operating and maintaining the Digivance ICS.• Product warranty, repair, return, and replacement informationThe procedures for installing the DEU and DRU are provided in other publications which arereferenced in the Related Publications section and at appropriate points within this manual.RELATED PUBLICATIONSListed below are related manuals and their publication numbers. Copies of these publicationscan be ordered by contacting the ADC Technical Assistance Center at 1-800-366-3891(in U.S.A. or Canada) or 952-946-3000, extension 63475 (outside U.S.A. and Canada).Title/Description ADCP Number Digivance ICS Digital Expansion Unit Installation Instructions 75-111Provides adescription of the DEU and procedures for installing the DEU.Digivance ICS Digital Remote Unit Installation Instructions 75-112Provides adescription of the DRU and procedures for installing the DRU.Digivance ICS Local Interface Unit User Manual 75-113Provides adescription of the LIU and procedures for installing the LIU.Digivance ICS Remote Interface Unit User Manual 75-114Provides adescription of the RIU and procedures for installing the RIU.

ADCP-75-110 • Issue 2B • July 2001 Page vi 2001, ADC Telecommunications, Inc.ADMONISHMENTS Important safety admonishments are used throughout this manual to warn of possible hazardsto persons or equipment. An admonishment identifies apossible hazard and then explainswhat may happen if the hazard is not avoided. The admonishments —in the form of Dangers,Warnings, and Cautions —must be followed at all times. These warnings are flagged by useof the triangular alert icon (seen below), and are listed in descending order of severity of injuryor damage and likelihood of occurrence.Danger:Danger is used to indicate the presence of a hazard that will cause severe personalinjury, death, or substantial property damage if the hazard is not avoided.Warning:Warning is used to indicate the presence of a hazard that can cause severepersonal injury, death, or substantial property damage if the hazard is not avoided.Caution:Caution is used to indicate the presence of a hazard that will or can cause minorpersonal injury or property damage if the hazard is not avoided.GENERAL SAFETY PRECAUTIONS The following general admonishments apply throughout the procedures in this manual.Warning:Wet conditions increase the potential for receiving an electrical shock wheninstalling or using electrically-powered equipment. To prevent electrical shock, never installor use electrical equipment in awet location or during alightning storm.Warning:The DRU is powered by 48 VDC power which is supplied over customer-providedwiring. To prevent electrical shock when installing or modifying the DRU power wiring,disconnect the wiring at the power source before working with uninsulated wires or terminals.Danger:This equipment uses aClass 1Laser according to FDA/CDRH rules. Laser radiationcan seriously damage the retina of the eye. Do not look into the ends of any optical fiber. Donot look directly into the optical adapters of any digital unit or exposure to laser radiationmay result. An optical power meter should be used to verify active fibers. Aprotective cap orhood MUST be immediately placed over any radiating adapter or optical fiber connector toavoid the potential of dangerous amounts of radiation exposure. This practice also preventsdirt particles from entering the adapter or connectorDanger:Do not look into the ends of any optical fiber. Exposure to laser radiation may result. Donot assume laser power is turned-off or the fiber is disconnected at the other end.Danger:Always allow sufficient fiber length to permit routing without severe bends. Fibersmay be permanently damaged if bent/curved to aradius of less than 2inches (50 mm).

ADCP-75-110 • Issue 2B • July 2001 Page vii 2001, ADC Telecommunications, Inc.STANDARDS CERTIFICATION FCC:This equipment complies with the applicable sections of Title 47 CFR Parts 15, 22, 24,and 90.UL/CUL:This equipment complies with UL and CUL 1950 Standard for Safety forInformation Technology Equipment, Including Electrical Business Equipment.FDA/CDRH:This equipment uses aClass 1LASER according to FDA/CDRH Rules. Thisproduct conforms to all applicable standards of 21 CFR Part 1040.LIST OF ACRONYMS AND ABBREVIATIONS The acronyms and abbreviations used in this manual are detailed in the following list:AAmperesAC Alternating CurrentAGC Automatic Gain ControlAMPS Advanced Mobile Phone ServiceCDMA Code Division Multiple AccessCDRH Center for Devices and Radiological HealthCUL Canadian Underwriters LaboratoriesDAS Distributed Antenna SystemDC Direct CurrentDEU Digital Expansion UnitDHU Digital Host UnitDRU Digital Remote UnitEIA Electronic Industries AssociationERP Effective Radiated PowerESD Electrostatic DischargeFCC Federal Communications CommissionFDA Food and Drug AdministrationICS Indoor Coverage SolutionLIU Local Interface UnitNOC Network Operations CenterPWR PowerRIU Remote Interface UnitRF Radio FrequencyRSSI Received Signal Strength IndicationRX Receive or ReceiverTDMA Time Division Multiple AccessTX Transmit or TransmitterUL Underwriters LaboratoriesUPS Uninterruptible Power SupplyVVoltsVAC Volts Alternating CurrentVDC Volts Direct CurrentWECO Western Electric Company

ADCP-75-110 • Issue 2B • July 2001 Page 1 ©2001, ADC Telecommunications, Inc.1 SYSTEM FUNCTIONAL OVERVIEW AND UNIT DESCRIPTION This section provides an overview of the Digivance Indoor Coverage Solution (ICS), adescription of the functions and features provided by the units that comprise the system, alisting of terms used and their definition, and atable of specifications.1.1 System Functional Overview The Digivance ICS is adigitally distributed antenna system that provides in-building coveragefor analog (AMPS) or digital (TDMA or CDMA) cellular phone systems operating within the800 and 1900 MHz frequency bands. Large buildings typically interfere with the transmissionor reception of cellular phone system signals by imposing high attenuation losses on RFsignals. The Digivance ICS is designed to overcome the attenuation losses that make cellularcommunications within buildings or structures difficult or impossible. With the DigivanceICS, cellular phone RF signals can be distributed to the interior areas of any building orstructure to eliminate dead spots and improve reception.1.1.1 Basic System Components The basic components of the Digivance ICS and their functions are shown in Figure 1. Thebasic system consists of the Digital Host Unit (DHU), Digital Remote Unit (DRU), and whenadditional capacity or longer fiber runs are required, the Digital Expansion Unit (DEU). Inaddition, two accessory items, the Local Interface Unit (LIU) and the Remote Interface Unit(RIU) may be used as needed to interface the DHU with the cellular system Base TransceiverStation (BTS).1.1.2 Interface With BTS The DHU interfaces, either locally or remotely, with the BTS. As referenced in thispublication, the BTS could be either amicrocell or a cell site base station. When the BTS(microcell) is co-located with the DHU, alocal interface over coaxial cable is possible. Aninterface device, such as the LIU, may be required to provide the proper input and output RFsignal levels between the BTS and the DHU. When the BTS (cell site base station) is not co-located with the DHU, aremote interface using a donor antenna is required. An interfacedevice such as the RIU is required to provide the proper input and output RF signal levelsbetween the donor antenna and the DHU.The DHU interfaces, as described in the preceding paragraph, with the BTS. In the forwardpath, the DHU receives RF signals from the BTS. The DHU digitizes the RF signals and thenconverts them to digital optical signals for transport to the DEUs and DRUs. In the reversepath, the DHU receives digital optical signals from the DRUs and DEUs. The DHU convertsthe optical signals back to the original RF signal format for transmission to the BTS.

ADCP-75-110 • Issue 2B • July 2001 Page 2 ©2001, ADC Telecommunications, Inc.DRUDRUDRUDRUDRUDRUDRUDRUDRUDRUDRUDEUDEUDHURIULIUREMOTEBTSLOCALBTSRF16417-ARFFigure 1. System Overview Functional Block Diagram 1.1.3 Interface With Cellular Phones The DRUs interface with the cellular phones. In the reverse path, the DRU receives RF signalsfrom each cellular phone. The DRU digitizes the RF signals and then converts them to digitaloptical signals for transport to the DHU. In the forward path, the DRU receives digital opticalsignals from the DHU. The DRU converts the optical signals back to the original RF signalformat for transmission to the cellular phones. Asmall antenna is connected to the DRU totransmit and receive RF signals from the cellular phones.

ADCP-75-110 • Issue 2B • July 2001 Page 3 ©2001, ADC Telecommunications, Inc.1.1.4 Digital Fiber Optic Transport The DHU is connected to each DRU unit over a pair of multi-mode fiber optic links. One linkis used to transport the forward path optical signal. The other link is used to transport thereverse path optical signal. Because the optical signal is digital, no adjustments to the opticalsignal level are required at the DRU or the DHU regardless of the length of the optical link.Either 50 or 62.5 micron core multi-mode fiber optic cable may be used for the optical link. If50 micron cable is used, the optical link may be up to 750 meters in length. If 62.5 microncore cable is used, the optical link may be up to 500 meters in length. The fiber optic links areterminated with LC connectors.1.1.5 Capacity for Expansion and Extended Runs The DEU enables 6-way expansion of any optical port. This makes it possible to add moreDRUs without having to install additional DHUs. Each DHU is equipped with six opticalports. If more than six DRUs are required by the application, aDEU may be connected to oneof the optical ports at the DHU which expands that port to six ports. If still more optical portsare required, then asecond DEU may be connected to the DHU or a second DEU may beconnected to the first DEU. The ability to cascade DEU’s in parallel or in series providesunlimited flexibility. It is physically possible to connect an unlimited number DRUs to theDHU through the installation of DEUs. The maximum number of DRUs that can connected tothe DHU is limited only by the cumulative noise effect caused by antenna combining.1.1.6 Power Requirements The DHU, DEU, LIU, and RIU are each powered by 120–240 Vac (50–60 Hz) power which issupplied through astandard three-conductor AC power cord. The DRU is powered by 34–48Vdc which is supplied by either the DHU, DEU, or an ac/dc wall-mount style converter. Whenthe DRU is powered by the DHU or DEU, the power is fed through acategory 3 or 5 cableterminated with male RJ-45 connectors.1.1.7 Fault Detection and Alarm Reporting LED indicators are provided on the front panel of the various units to indicate if the system isnormal or if afault is detected. In addition, normally open and normally closed alarm contacts(for both major and minor alarms) are provided at the DHU for connection to acustomerprovided external alarm system. This could bealocal system or automatic call-out system.1.2 Digital Host Unit Description The DHU, shown in Figure 2, serves as the BTS servicing unit for the Digivance ICS. TheDHU provides the following basic functions:• RF inputs and outputs• Optical interface to the DRUs or DEUs• Digitizing of the cellular forward path RF signal

ADCP-75-110 • Issue 2B • July 2001 Page 4 ©2001, ADC Telecommunications, Inc.• Distribution of the digitized forward path RF signals into six digitized optical signals• Conversion of up to six reverse path digitized optical signals to six digitized RF signals• Combining of the six digitized RF signals into asingle composite digitized RF signal• Conversion of the combined digitized RF signal to acomposite RF signal• DC power for powering the DRUs• Relay contact closures to provide alarm information to an external alarm system17.2 INCHES(437 mm)3.5 INCHES(89 mm)11.4 INCHES(290 mm)15.3 INCHES(389 mm)FRONT PANELCABLE MANAGEMENTTRAYMOUNTINGBRACKET(BOTH SIDES)16418-AFigure 2. Digital Host Unit 1.2.1 Primary Components The DHU consists of two electronic circuit board assemblies, apower supply assembly, and afan assembly that are mounted within apowder-coated sheet metal enclosure. The metalenclosure provides amounting point for the electronic assemblies, serves as aheat sink, andcontrols RF emissions. Except for the fan units, the electronic circuit board assemblies are notuser replaceable. The DHU is designed for use within anon-condensing indoor environmentsuch as inside awiring closet or cabinet. All controls, connectors, and indicators are mountedon the DHU front panel for convenient access. Cable management functions for the power andfiber optic cables are provided by a cable management tray that extends outward from theDHU front panel.1.2.2 Mounting The DHU may be used in both rack-mount and wall-mount applications. For rack mountapplications, apair of reversible mounting brackets is provided that allow the DHU to bemounted in either a19-inch or 23-inch EIA or WECO equipment rack. When rack-mounted,the front panel of the DHU is flush with the front of the rack. The cable management trayextends 3.9 inches (99 mm) beyond the front panel. For wall-mount applications, apair ofholes is provided in the cable management tray which allow the DHU to be mounted on anyflat vertical surface. The DHU should be oriented with the front panel facing upward whenwall-mounted. Fasteners are provided for rack-mount applications.

ADCP-75-110 • Issue 2B • July 2001 Page 5 ©2001, ADC Telecommunications, Inc.1.2.3 Fault Detection and Alarm Reporting The DHU is designed to detect internal circuitry faults and optical port faults. Various frontpanel Light Emitting Diode (LED) indicators turn from green to red or yellow if afault isdetected or an optical input is lost. Aset of alarm contacts (normally open and normallyclosed) are also provided for reporting an alarm to an external alarm system when afault isdetected. Both major alarm (all fault conditions except high temperature) and minor alarm(high temperature fault condition) contacts are provided.1.2.4 RF Signal Connections The RF signal connections between the DHU and the BTS are supported through two type Nfemale connectors. One connector is used for coaxial cable connection of the forward path RFsignal. The other connector is used for coaxial cable connection of the reverse path RF signal. Inmost installations, the DHU will not connect directly to the BTS but will be connected to aninterface device such as the RIU or the LIU. Additional information concerning the DHU to BTSinterface is provided in the Digivance ICS Remote Interface Unit User Manual (ADCP-75-113) andin the Digivance ICS Local Interface Unit User Manual (ADCP-75-114).The DHU requires acomposite forward path RF signal level of –20 dBm or lower. Anoverdrive limiter protects the system against excessive inputs but does not function duringnormal operation. The DHU does not have Automatic Gain Control (AGC).1.2.5 Optical and Electrical Interface Connections Operation of the DRUs and DEUs is supported by six optical and six electrical ports. Each opticaland electrical interface connection includes astatus LED, asmall form factor LC type opticaltransceiver, an RJ-45 DC power jack, and aport enable/disable switch. An optical port may beconnected to aDRU, aDEU, or not used. An electrical port may be connected to aDRU or notused. Unused ports require no connections at all and are disabled via the corresponding portenable/disable switch. When disabled, the port LED is off, the alarm reporting function is disabled,the laser is off, and the DC power is off. Enabling the enable/disable switch activates all functions.1.2.6 Powering The DHU is powered by 120–240 Vac (50–60 Hz) power which is supplied through astandardthree-conductor AC power cord. The power cord is provided with the DHU and is 98 inches(2.5 meters )long. Aresetable circuit breaker/On-Off switch is provided at the unit frontpanel. The switch applies power to the DHU internal power supply.1.2.7 Cooling Continuous air flow for cooling is provided by dual fans mounted on the right side of the housing.Aminimum of 3inches (76 mm) of clearance space must be provided on both the left and rightsides of the DHU for air intake and exhaust. An alarm is provided that indicates if ahightemperature condition (>50º C/122º F) occurs. The fans may be field-replaced if either fan fails.1.2.8 User Interface The DHU user interface consists of the various connectors, switches, terminals, and LEDs thatare provided on the DHU front panel. The DHU user interface points are indicated in Figure 3and described in Table 1.

ADCP-75-110 • Issue 2B • July 2001 Page 6 ©2001, ADC Telecommunications, Inc.(1) AC POWER CORDCONNECTOR(2) AC POWER ON/OFF SWITCH (3) OPTICAL PORT LED INDICATOR(6 PLACES)(4) OPT/ELEC PORTENABLE/DISABLESWITCH (6 PLACES)(5) ELECTRICAL PORTDC POWER JACK(6 PLACES)(6) OPTICAL PORTOPTICAL ADAPTERSTX-LEFT - RX-RIGHT(6 PLACES)(7) UNIT LEDINDICATOR (10) RF INPUTCONNECTOR(8) OVERDRIVELEDINDICATOR(9) ALARMTERMINALSTRIP(11) RF OUTPUTCONNECTOR16419-ANOTE: SHOWN WITHOUTCABLE MANAGEMENT TRAYFigure 3. Digital Host Unit User Interface Table 1. Digital Host Unit User Interface REFNo. USER INTERFACE DESIGNATION DEVICE FUNCTIONAL DESCRIPTION 1POWER 3-wire AC powercord connector Used for connecting the AC power cord.2I/O I/O rocker switch/circuit breaker Provides AC power On/Off control andAC power over current protection.3OK/NOK (Ports 1–6) Multi-colored LED(Red/Green/Yellow) Indicates if the DRU or remote DEU connectedto the optical port is normal or faulty or if thereverse path optical input from the DRU orremote DEU is normal or lost. (see Note)4ON/OFF (Ports 1–6) I/O rocker switch Enables or disables correspondingelectrical and optical ports.5DC PWR (Ports 1–6) RJ-45 jack (female) Used for connecting aDRU cat 3or 5powercable to the designated DC power jack.6FIBER (Ports 1–6) Small form factorLC-type opticaltransceiverUsed for connecting each DEU or DRUforward path and reverse path optical linkto the designated optical port.7UNIT Multi-colored LED(Red/Green/Yellow) Indicates if the DHU is normal or faulty.(see Note)8OVERDRIVE Multi-colored LED(Red/Green/Yellow) Indicates when the forward path RF inputpower is overdriving the DHU digitizingcircuitry. (see Note)9MAJOR MINOR Screw-type terminalconnector(14–26 AWG)Used for connecting an external alarmsystem to the DHU. Includes normally open(NO), normally closed (NC), and common(COM) wiring connections.10 RF IN N-type female RFcoaxial connector Used for connecting the forward path RFcoaxial cable to the DHU.11 RF OUT N-type female RFcoaxial connector Used for connecting the reverse path RFcoaxial cable to the DHU.Note: Adetailed description of LED operation is provided in Section 4.

ADCP-75-110 • Issue 2B • July 2001 Page 7 ©2001, ADC Telecommunications, Inc.1.3 Digital Remote Unit Description The DRU, shown in Figure 4, serves as the cellular user servicing unit for the Digivance ICS.The DRU provides the following basic functions:• RF interface to the cellular users via an external antenna• Optical interface to the DHU or DEU• Conversion of the forward path digitized optical signal to adigitized RF signal• Conversion of the digitized forward path RF signal to the original cellular RF signal• Digitizing of the cellular reverse path RF signal• Conversion of the digitized reverse path RF signal to adigital optical signal output• Transports alarm status via optical linkFRONT PANELMOUNTING FOOT(EACH CORNER)7.0 INCHES(178 mm)7.3 INCHES(185 mm)2.1 INCHES(53 mm)16420-AFigure 4. Digital Remote Unit 1.3.1 Primary components The DRU consists of an electronic circuit board assembly that is mounted within apowder-coated sheet metal enclosure. The metal enclosure provides amounting point for the electronicassembly, serves as aheat sink, and controls RF emissions. The electronic circuit boardassembly is not user replaceable. The DRU is designed for use within anon-condensingindoor environment such as inside abuilding. All controls, connectors, and indicators (exceptthe SMA antenna connector) are mounted on the DRU front panel for convenient access.1.3.2 Mounting The DRU is equipped with four integral mounting feet that allow it to be mounted on any flathorizontal or vertical surface. Atypical location for mounting the DRU would be aboveceiling tiles where the optical fiber and power cables can be concealed or on a wall. Slots areprovided in the mounting feet for securing the DRU to the mounting surface.

ADCP-75-110 • Issue 2B • July 2001 Page 8 ©2001, ADC Telecommunications, Inc.1.3.3 Fault Detection The DRU is designed to detect internal circuitry faults or loss of system inputs. A front panelLED indicator turns from green to red when afault condition is detected or when the opticalinput is lost. The DRU sends the fault information to the DHU or DEU over the fiber opticlink. Acorresponding port LED at the DHU or DEU turns from green to red when the DRUreports afault.1.3.4 RF Signal Interface The RF signal interface between the DRU and the cellular users is provided through anexternal antenna connected to afemale SMA connector. The antenna must be orderedseparately. Several types of antennas with various RF propagations are available. Non-ADCantennas may also be used with the DRU to meet various application requirements.1.3.5 Optical Port The DRU is equipped with asmall form factor LC type optical transceiver that provides apoint for connecting the optical link cables. Depending on the application requirements, theoptical port may be connected to either aDHU or a DEU.1.3.6 Powering The DRU is equipped with afemale RJ-45 jack that provides apoint for connecting aDCpower cable. The DRU is powered by 34–48 Vdc power which is supplied through the RJ-45connector. Power to the DRU may be supplied by the DHU, DEU, or by a 120 Vac to 48 Vdcpower converter (available separately as an accessory item) plugged into a properly grounded120 Vac outlet. The ac/dc converter is aUL Listed stand alone Limited Power Supply (LPS)unit with arated output of 48 Vdc at 1.2 Amps. When powered by the DHU or DEU, acategory 3 or 5 twisted-pair cable terminated with RJ-45 connectors is required.1.3.7 Cooling The DRU is cooled by natural convection air flow. The DRU mounting feet are designed to provideclearance under the unit so that air can enter the DRU enclosure from the bottom and exit throughthe top. Aminimum clearance of 3inches (76 mm) must be provided on all sides of the DRU(except the bottom) to ensure there is adequate air circulation for cooling. In addition, at least onesurface of the DRU installation area must be open to the interior of the building.1.3.8 User Interface The DRU user interface consists of the connectors and the LED that are provided on the DRUfront and rear panels. The DRU user interface points are indicated in Figure 5 and described inTable 2.

ADCP-75-110 • Issue 2B • July 2001 Page 9 ©2001, ADC Telecommunications, Inc.16421-AREAR VIEWFRONT VIEW(4) ANTENNA CONNECTOR(1) STATUS LED(2) 48 VDC POWERCONNECTOR (3) FIBER LINKOPTICAL ADAPTERSTX-LEFT - RX-RIGHTFigure 5. Digital Remote Unit User Interface Table 2. Digital Remote Unit User Interface REFNo. USER INTERFACE DESIGNATION DEVICE FUNCTIONAL DESCRIPTION 1STATUS Multi-colored LED(Red/Green/Yellow) Indicates if the status of the DRU isnormal or faulty or if the forward pathoptical input is normal or lost. (see Note)2 48 VDC RJ-45 jack (female) Used for connecting a DC power cable.3FIBERTX RX Small form factorLC-type opticaltransceiverUsed for connecting the forward path andreverse path optical links.4 – SMA-type coaxialconnector (female) Used for connecting the antenna coaxialcable lead.Note: Adetailed description of LED operation is provided in Section 4.1.4 Digital Expansion Unit Description The DEU, shown in Figure 6, serves as aservice expansion unit and line extender for theDigivance ICS. The DEU provides the following basic functions:• Optical interface to the DHU and up to six DRUs or DEUs• Conversion of the forward path digitized optical signal to an electrical bit stream• Splitting of the electrical bit stream into six separate bit streams• Conversion of the six forward path electrical bit streams into six digital optical signals• Conversion of up to six reverse path digital optical signals into six serial bit streams• Combining of the six reverse path serial bit streams into asingle digital composite signal• Conversion of the single digital composite signal to adigital optical signal• DC power for powering the DRUs• Alarm transport via the optical links

ADCP-75-110 • Issue 2B • July 2001 Page 10 ©2001, ADC Telecommunications, Inc.FRONT PANELCABLE MANAGEMENTTRAYMOUNTINGBRACKET(BOTH SIDES)16422-A3.5 INCHES(89 mm)11.4 INCHES(290 mm)15.3 INCHES(389 mm)17.2 INCHES(437 mm)Figure 6. Digital Expansion Unit 1.4.1 Primary Components The DEU consists of two electronic circuit board assemblies and apower supply that aremounted within apowder-coated sheet metal enclosure. The metal enclosure provides amounting point for the electronic assemblies and serves as aheat sink. Except for the fanunits, the electronic circuit board assemblies are not user replaceable. The DEU is designed foruse within anon-condensing indoor environment such as inside awiring closet or cabinet. Allcontrols, connectors, and indicators are mounted on the DEU front panel for convenientaccess. Cable management functions for the power and fiber optic cables are provided by acable management tray that extends outward from the DEU front panel.1.4.2 Mounting The DEU may be used in both rack-mount and wall-mount applications. For rack mountapplications, apair of reversible mounting brackets is provided that allow the DEU to bemounted in either a19-inch or 23-inch EIA or WECO equipment rack. When rack-mounted,the front panel of the DEU is flush with the front of the rack. The cable management trayextends 3.9 inches (99 mm) beyond the front panel. For wall-mount applications, apair ofholes is provided in the cable management tray which allow the DEU to be mounted on anyflat vertical surface. The DEU should be oriented with the front panel facing upward whenwall-mounted. Fasteners are provided for rack-mount applications.1.4.3 Fault Detection The DEU is designed to detect internal circuitry faults or loss of system inputs. Various frontpanel Light Emitting Diode (LED) indicators turn from green to red or yellow when afault isdetected or when an optical input is lost. The DEU transports the fault information to the DHUor supporting DEU over the fiber optic link. Acorresponding port LED at the DHU or DEUturns from green to red when the DEU reports afault.

ADCP-75-110 • Issue 2B • July 2001 Page 11 ©2001, ADC Telecommunications, Inc.1.4.4 Optical and Electrical Interface Connections Operation of the DRUs and DEUs is supported by six optical and six electrical ports. Eachoptical and electrical interface connection includes astatus LED, asmall form factor LC typeoptical transceiver, an RJ-45 DC power jack, and a port enable/disable switch. An optical portmay be connected to aDRU, aDEU, or not used. An electrical port may be connected to aDRU or not used. Unused ports require no connections at all and are disabled via thecorresponding port enable/disable switch. When disabled, the port LED is off, the alarmreporting function is disabled, the laser is off, and the DC power is off. Enabling theenable/disable switch activates all functions. The DEU also provides one optical portdesignated the host port for the optical interface with the DHU or a supporting DEU.1.4.5 Powering The DEU is powered by 120–240 Vac (50–60 Hz) power which is supplied though astandardthree-conductor AC power cord. The power cord is provided with the DEU and is 98 inches(2.5 meters) long. Areset able circuit breaker/On-Off switch is provided at the unit frontpanel. The switch applies power to the DEU internal power supply.1.4.6 Cooling Continuous air flow for cooling is provided by dual fans mounted on the right side of the sheetmetal housing. Aminimum of 3 inches (76 mm) of clearance space must be provided on boththe left and right sides of the DEU for air intake and exhaust. An alarm is provided thatindicates if ahigh temperature condition (>50º C/122º F) occurs. The fans may be field-replaced if either unit fails.1.4.7 User Interface The DEU user interface consists of the various connectors, switches, and LEDs that areprovided on the DEU front panel. The DEU user interface points are indicated in Figure 7 anddescribed in Table 3.16423-A(2) AC POWER ON/OFF SWITCH (3) OPTICAL PORT LED INDICATOR(6 PLACES)(4) OPT/ELEC PORTENABLE/DISABLESWITCH (6 PLACES)(8) UNIT LEDINDICATOR(1) AC POWER CORDCONNECTOR (5) ELECTRICAL PORTDC POWER JACK(6 PLACES)(6) OPTICAL PORTOPTICAL ADAPTERSTX-LEFT - RX-RIGHT(6 PLACES)(9) HOST PORTLEDINDICATOR(7) HOST PORTOPTICAL ADAPTERSTX-LEFT - RX-RIGHTNOTE: SHOWN WITHOUTCABLE MANAGEMENT TRAYFigure 7. Digital Expansion Unit User Interface

ADCP-75-110 • Issue 2B • July 2001 Page 12 ©2001, ADC Telecommunications, Inc.Table 3. Digital Expansion Unit User Interface REFNo. USER INTERFACE DESIGNATION DEVICE FUNCTIONAL DESCRIPTION 1POWER 3-wire AC powercord connector Used for connecting the AC power cord.2I/O I/O rocker switch/circuit breaker Provides AC power On/Off control andAC power over current protection.3OK/NOK (Ports 1–6) Multi-colored LED(Red/Green/Yellow) Indicates if the DRU or remote DEUconnected to the optical port is normal orfaulty or if the reverse path optical inputfrom the DRU or remote DEU is normalor lost. (see Note)4ON/OFF (Ports 1–6) I/O rocker switch Enables or disables correspondingelectrical and optical ports.5DC PWR (Ports 1–6) RJ-45 jack (female) Used for connecting aDRU cat 3or 5powercable to the designated DC power jack.6FIBER (Ports 1–6) Small form factorLC-type opticaltransceiverUsed for connecting each DRU or remoteDEU forward path and reverse path opticallink to the designated optical port.7HOST PORT Small form factorLC-type opticaltransceiverUsed for connecting the DHU or supportingDEU forward path and reverse path optical link.8UNIT Multi-colored LED(Red/Green/Yellow) Indicates if the DEU is normal or faulty.(see Note)9HOST PORT Multi-colored LED(Red/Green/Yellow) Indicates if the forward path optical inputfrom the DHU or supporting DEU isnormal or lost. (see Note)Note: A detailed description of LED operation is provided in Section 4.1.5 Terms and Definitions Refer to Table 4 for alisting of the terms used in this manual and their definition.Table 4. Terms and Definitions TERM DEFINITION Alarm Response The response to an alarm input.Base Transceiver Station The radio equipment that transmits and receives the voice andcontrol channels to and from the cellular handsets.Composite Signal The sum of several combined signals.Digital Expansion Unit The unit that extends a single optical interface to multiple opticalinterfaces or that extends an optical run.Digital Host Unit The unit that converts and provides the digital source signal to all DEUsand DRUs and converts summed inputs from DEUs and DRUs.(continued)

ADCP-75-110 • Issue 2B • July 2001 Page 13 ©2001, ADC Telecommunications, Inc.Table 4. Terms and Definitions, continued TERM DEFINITION Digital Remote Unit The unit that interfaces the in-building user to the Digivance opticaltransport.Digitized RF Signal The RF signal in a digitized form.Forward Path Signal A signal that travels from the base station to the cell phone.Major Alarm An alarm condition that applies when any fault (except hightemperature) occurs.Minor Alarm The alarm condition that applies when a high temperature conditionoccurs. (> 50º C/122º F)Mute To force aforward path RF signal to a“no signal” state.Normal State The operating state after power-up is completed and no faults aredetected.Port An RF, optical, or electrical interface point.Port Alarm Afault that affects only the unit or units connected to that port.Indicates no optical input to port.Power-Up State The period between the application of power to a unit and the normalstate. This period includes time for circuit stabilization andinitialization operations.Reverse Path Signal A signal that travels from one or more cell phones to the base station.Transport Alarm Signal An alarm signal transported over the fiber optic link.Unit Alarm Afault within a unit that usually affects all connected ports.1.6 Specifications Refer to Table 5 for the Digivance ICS system specifications. All specifications apply afterfive minute warm-up period.Table 5. System Specifications PARAMETER SPECIFICATION REMARKS Optical – All UnitsFiber type Multimode 50 or 62.5 micron core Two fibers per linkMaximum Fiber Length 500 m (1,641 ft)750 m (2461 ft) With 62.5 micron coreWith 50 micron coreOptical Output Power –10 to +4 dBmOptical Wavelength 850 nmEnvironmental Operating Temperature 0º to 50º C (32º to 122º F)Storage Temperature –30º to +70º C (–22 to 158º F)Humidity No condensationWeather resistance Indoor installation only(continued)

ADCP-75-110 • Issue 2B • July 2001 Page 14 ©2001, ADC Telecommunications, Inc.Table 5. System Specifications, continued PARAMETER SPECIFICATION REMARKS RF Forward Path System Bandwidth 25 MHz800 MHz frequencyrange (A and B band) US Cellular 869 to 894 MHz1900 MHz freq. rangesAD bandDBE bandBEF bandEFC bandUS PCS1925 to 1950 MHz1945 to 1970 MHz1950 to 1975 MHz1965 to 1990 MHzOutput power +13 dBm± 1 dB at midpoint of passband Maximum composite powerGain +33 ± 1.5 dB at band center At room temperatureGain variation < 6 dB< 1.5 dB variationOver frequency, temperature, andunit to unit.Per 1.25 MHz CDMA channelOIP3 >+35 dBm At +13 dBm composite outputCDMA ACPR1 < –45 dBcSpurious Output < –35 dBmDHU RF input signallevel –20 dBm maximum composite Provides a nominal +13 dBm RFoutput signal at the DRURF Reverse PathSystem bandwidth 25 MHz800 MHz frequencyrange (A and B band) US Cellular 824 to 849 MHz1900 MHz freq. rangesAD bandDBE bandBEF bandEFC bandUS PCS1845 to 1870 MHz1865 to 1890 MHz1870 to 1895 MHz1885 to 1910 MHzGain +10 dB± 1 dB at midpoint of passbandGain Variation < 6 dB< 1.5 dB variationOver frequency, temperature, andunit to unit.Per 1.25 MHz CDMA channelAutomatic GainLimiting Prevents A/D saturation withlarge inputs. Disabled forcomposite RF input < –40 dBmNoise Figure < 8 dB typical midband 8 + 10 log N(N = # of remotes) SeeNote at end of tableDHU RF output signallevel –30 dBm typical With a–40 dBm composite maximuminput signal at the DRU(continued)

ADCP-75-110 • Issue 2B • July 2001 Page 15 ©2001, ADC Telecommunications, Inc.Table 5. System Specifications, continued PARAMETER SPECIFICATION REMARKS Physical/Electrical – DHUWeight 18.5 lbs (8.4 kg)RF connection Type N FemaleAlarm connection Screw terminals (14–26 AWG) NO, NC, and COMOptical connection Duplex LC transceiverDC pwr output connection RJ-45 FemalePower input 120/240 Vac, 50–60 HzAC power connection IEC 320 MalePower consumption 250 W MaximumCurrent rating 85–250 Vac, 2Amp inputPhysical/Electrical – DEUWeight 18.5 lbs (8.4 kg)Optical connection Duplex LC transceiverDC pwr output connection RJ-45 FemalePower input 120/240 Vac, 50–60 HzAC power connection IEC 320 MalePower consumption 250 W MaximumCurrent rating 85–250 Vac, 2Amp inputPhysical/Electrical – DRUWeight 1.5 lbs (708 g)RF connection SMA Female800 MHz antenna types Ceiling mount omni directional70º directional panel90º directional panelCeiling mount hallway2.5 dBi gain8dBi gain7.5 dBi gain4dBi gain1900 MHz antenna types Ceiling mount omni directional90º directional panelCeiling mount hallway2.5 dBi gain7.5 dBi gain4dBi gainOptical connection Duplex LC transceiverDC pwr input connection RJ-45 FemalePower input 34 to 48 VdcDC power cablemaximum length (Cat-3or -5 cable)500 meters (1,641 ft) Any distance beyond 500 metersrequires alternate power sourcingPower consumption 17 W TypicalCurrent rating 48 Vdc, 350 mA inputNote:The noise from all remotes is added at the host. Given N units with identical gain and noise,the formula applies exactly. Slight unit to unit noise figure and gain variations make this avery usefulapproximation.

ADCP-75-110 • Issue 2B • July 2001 Page 16 ©2001, ADC Telecommunications, Inc.2 INSTALLATION PLANNING AND SYSTEM DESIGN This section provides installation planning information and basic system design recommendationsfor RF engineers that will be designing and installing an in-building coverage solution using theDigivance ICS. System design and planning services are available from ADC if required. Refer toSection 6of this manual for additional information.2.1 Base Station Interface Requirements The DHU may be interfaced either locally or remotely with the BTS. As referenced in thispublication, the BTS could be either amicrocell or a cell site base station. With alocalinterface, ahard-wire connection is provided between the DHU and the BTS (microcell) usingcoaxial cables. With aremote interface, an over-the-air connection is provided between theDHU and the BTS (cell site base station) using a donor antenna.2.1.1 Local BTS (Microcell) Interface Alocal interface between the DHU and the BTS (microcell) over coax requires specific RFinput and output signal levels at the DHU and BTS. The correct levels can be provided at theBTS and DHU using the Local Interface Unit (LIU). The LIU is an accessory item thatprovides adjustable gain or attenuation in both the RF forward and reverse path. The level ofthe RF output signal from the BTS will vary depending on the type of BTS. Therefore, it willgenerally be necessary to add some gain or some attenuation to the forward path (downlink)signal to provide the recommended composite maximum RF input signal level at the DHUwhich is–20 dBm.When the level of the RF input signal at the DHU is –20 dBm, the level ofthe RF output signal at the DRU will be +13 dBm which is the maximum allowed.In the reverse path, the input signal level required at the BTS will also vary depending on thetype of BTS. When the level of the reverse path (uplink) signal at the DRU is at therecommended composite maximum of –40 dBm,the level of the RF output signal from theDHU is –30 dBm.Therefore, it may be necessary to add some gain or attenuation to thereverse path signal in order to achieve the required RF input signal level at the BTS. Ablockdiagram showing atypical local DHU to BTS interface is provided in Figure 8.LOCALINTERFACEUNITFORWARD(DOWNLINK)REVERSE (UPLINK)+13 dBm(COMPOSITEMAX)-40 dBm(COMPOSITEMAX)-20 dBm(COMPOSITE MAX)-30 dBm(COMPOSITE MAX)16424-ADIGITALHOSTUNITOPTICAL LINKOPTICAL LINKDIGITALREMOTEUNITDIRECTIONAL ANTENNATO/FROM HANDSETSLOCAL BASETRANSCEIVER STATION(MICRO CELL)T1 LINKTO SWITCHFigure 8. Local BTS Interface Block Diagram

ADCP-75-110 • Issue 2B • July 2001 Page 17 ©2001, ADC Telecommunications, Inc.The LIU is rack or wall mountable and is powered by 120–240 Vac (50–60 Hz) power. Referto the Digivance Local Interface Unit User Manual (ADCP-75-113) for acomplete descriptionof the LIU.2.1.2 Remote BTS (Cell Site Base Station) Interface Aremote interface between the DHU and the BTS (cell site base station) via a donor antennarequires specific RF input and output signal levels at the DHU and antenna. The correct levelsat the DHU and antenna can be provided using the Remote Interface Unit (RIU). The RIU isan accessory item that provides adjustable gain or attenuation in both the RF forward andreverse paths. The RIU connects to adirectional antenna through aduplexer which providesseparate forward and reverse path connections for the DHU. In the forward path (downlink),the RIU provides the DHU with the recommended composite maximum RF input signal levelof –20 dBm.When the level of the RF input signal at the DHU is –20 dBm, the level of theRF output signal at the DRU is +13 dBm which is the maximum allowed.In the reverse path, the required RF output signal level to the donor antenna will varydepending on the distance from the BTS. When the level of the reverse path (uplink) signal atthe DRU is at the recommended composite maximum level of –40 dBm,the level of the RFoutput signal from the DHU is –30 dBm.Therefore, it may be necessary to add gain orattenuation to the reverse path signal in order to achieve the required output signal level at theRIU antenna port. Ablock diagram showing atypical remote DHU to BTS interface isprovided in Figure 9.The RIU is rack or wall mountable and is powered by 120–240 Vac (50–60 Hz) power. Referto the Digivance Remote Interface Unit User Manual (ADCP-75-114) for acompletedescription of the RIU.DIRECTIONAL ANTENNA TO/FROM CELL SITE BTS16425-AREMOTEINTERFACEUNITFORWARD(DOWNLINK)REVERSE (UPLINK) +13 dBm(COMPOSITEMAX)-40 dBm(COMPOSITEMAX)-20 dBm(COMPOSITEMAX)-30 dBm(COMPOSITEMAX)DIGITALHOSTUNITOPTICAL LINKOPTICAL LINKDIGITALREMOTEUNITDIRECTIONAL ANTENNATO/FROM HANDSETSFigure 9. Remote BTS Interface Block Diagram

ADCP-75-110 • Issue 2B • July 2001 Page 18 ©2001, ADC Telecommunications, Inc.2.2 Location and Mounting Requirements 2.2.1 DHU and DEU Location and Mounting Requirements The DHU and the DEU may be either rack mounted or wall mounted. Fasteners (both metric andUS standard) are included with each unit for rack mount applications. Apair of reversible mountingbrackets is provided that allows the unit to be mounted in either a19-inch or 23-inch EIA or WECOequipment rack. When rack-mounted, the front panel of the unit is flush with the front of the rack.The cable management tray extends 3.9 inches (99 mm) beyond the front panel. Both the DHU andDEU occupy 3.5 inches (89 mm) of rack space. Make sure the mechanical loading of the rack willbe even to avoid ahazardous condition such as aseverely unbalanced rack. The rack should safelysupport the combined weight of all the equipment it holds.For wall-mount applications of the DHU or DEU, apair of holes is provided in the cablemanagement tray that allows the unit to be mounted on any flat vertical surface. The mountingholes are spaced 11-21/32 inches (296 mm) apart. Orient the DHU/DEU so the front panelfaces up when mounted. Appropriate fasteners for wall mounting must be provided by theinstaller. It is recommended that abacker board such as 3/4-inch plywood be installed over themounting surface to provide asecure base for attaching the DHU or DEU.Mount the DHU and DEU in anon-condensing indoor environment such as inside awiringcloset or within an environmentally controlled cabinet. All controls, connectors, and indicatorsare mounted on the front panel. Route all cables to the front panel for connection. Use thecable retainers provided on the cable management tray to secure the fiber optic, DC power,and external alarm system cables.The maximum recommended ambient temperature for the DHU and DEU is 50º C (122º F).Allow sufficient air circulation or space between each unit when installed in amulti-unit rackassembly because the operating ambient temperature of the rack environment might be greaterthan room ambient. Provide aminimum clearance of 3 inches (76 mm) on both the left andright sides of the unit for air intake and exhaust. Refer to Figure 2 for the DHU dimensionsand Figure 6 for the DEU dimensions.2.2.2 DRU Location and Mounting Requirements The DRU may be wall-mounted or ceiling-mounted. The DRU is equipped with four integralmounting feet that allow it to be fastened to any flat vertical or horizontal surface. Holes areprovided in the mounting feet for inserting fasteners. Appropriate fasteners for securing theDRU to the selected mounting surface must be provided by the installer.Mount the DRU in anon-condensing indoor environment. Route the DC power cable and fiberoptic links to the DRU front panel for connection. Route the antenna coaxial cable to the DRUrear panel for connection. Provide aminimum of 3 inches (76 mm) of clearance space on allsides of the DRU (except the bottom) to ensure there is adequate air circulation for cooling. Inaddition, at least one surface of the DRU installation area must be open to the interior of thebuilding. If aportable/flexible antenna will be installed, allow aminimum of 9 inches (229mm) clearance along the surface with the antenna. Refer to Figure 4 for the DRU dimensions.

ADCP-75-110 • Issue 2B • July 2001 Page 19 ©2001, ADC Telecommunications, Inc.2.3 Powering Requirements 2.3.1 DHU and DEU Powering The DHU and DEU are powered by 120–240 Vac (50–60 Hz) which is supplied through astandard three-conductor AC power cord. The 120 Vac power cord is provided with the unitand is 98 inches (2.5 m) long. Both the DHU and the DEU have a current rating of 2.0 Ampsat 120 Vac input. Locate each unit so that an AC outlet is within the reach of the power cord.If back-up powering is required, it is recommended that the building Uninterruptible PowerSupply (UPS) system be used to provide back-up power to the DHU and DEU in the event ofan AC power outage.2.3.2 DRU Powering The DRU is powered by 48 Vdc power which is supplied to the DRU through the front panelRJ-45 connector. Power to the DRU may be provided by the DHU, DEU, or by a 120 Vac to48 Vdc power converter (available separately as an accessory item) plugged into a properlygrounded 120 Vac outlet. The DRU has a current rating of 350 mA at 48 Vdc input.If the DRU will be powered by the DHU or DEU, the power cable must be fabricated on-site by theinstaller. Use category 3or 5twisted pair cable as the power supply cable when the DRU ispowered by the DHU or DEU. The maximum recommended length of the power cable is 500meters.If the DRU will be located more than 500 meters from the DHU or DRU, the DRU must belocally powered by a48 Vdc power converter. Route the power cable between the power source andthe DRU. Terminate both ends of the power cable with amale RJ-45 connector.The DRU may be powered locally by the ac/dc converter, shown in Figure 10, which isavailable as an accessory item. The converter is aUL Listed stand alone Limited PowerSupply (LPS) unit with arated output of 48 Vdc at 1.2 Amps.The converter is equipped witha 6-foot (1.8 m) DC power cable which is terminated with an RJ-45 male connector. Theconverter is powered by 120–240 Vac (50–60 Hz) power which is supplied though astandardthree-conductor AC power cord. The 120 Vac power cord is 6feet (1.8 m) long and isprovided with the converter.15988-AFigure 10. AC/DC Power Converter

ADCP-75-110 • Issue 2B • July 2001 Page 20 ©2001, ADC Telecommunications, Inc.2.4 Optical Options and Requirements Each DHU and its associated DEUs and DRUs are connected over a pair of fiber optic links.One link transports the forward path optical signal and the other link transports the reversepath optical signal. Either 50 or 62.5 micron core multi-mode fiber optic cable may be usedfor the optical link. If 50 micron cable is used, the optical link may be up to 750 meters (2461ft) in length. If 62.5 micron cable is used, the optical link may be up to 500 meters (1,641 ft)in length. Adiagram of the optical connections is shown in Figure 11.TX RXTX RXTX RX TX RX TX RX TX RXPORTS 1-6PORTS1-6PORTS 1-6FIBER PORTFIBER PORTHOSTPORTFORWARD PATHREVERSE PATHFORWARD PATHREVERSE PATHFORWARD PATHREVERSE PATHDIGITALREMOTEUNITDIGITALREMOTEUNITDIGITALHOSTUNITDIGITALHOSTUNITDIGITAL EXPANSION UNITBASIC CONFIGURATION WITH DHU AND DRUBASIC CONFIGURATION WITH DHU, DEU, AND DRUEND-TO-END OPTICAL CONNECTOR/CABLE ASSEMBLY DIAGRAMFigure 11. Digivance ICS Optical Connections

ADCP-75-110 • Issue 2B • July 2001 Page 21 ©2001, ADC Telecommunications, Inc.Whenever possible, use conduit or aguideway such as the FiberGuide system to route the opticallinks between the DHU, the DEUs, and the DRUs. Avoid routing optical fibers through ladder typecable racks or troughs that do not provide sufficient support to limit bending or prevent accidentaldamage. Tie-wrapping is not recommended as ameans of securing fiber optic cables. Providesufficient slack at each unit for connecting each fiber to the required port. Fibers may be pre-terminated or terminated on-site using field-installable LC type connectors.2.5 Coaxial Cable Requirements The DHU interfaces either locally (see Figure 8) or remotely (see Figure 9) with the BTSthrough coaxial cable connections. In alocal interface with the BTS, coaxial cables arerequired to link the DHU with the LIU and the LIU with the BTS. In aremote interface,coaxial cables are required to link the DHU with the RIU and the RIU with the donor antenna.The DHU, LIU, and RIU are equipped with N-type female connectors for connecting theforward and reverse path coaxial cables. Use high performance, flexible, low loss 50-ohmcoaxial communications cable (RG 400 or equivalent) for all coaxial connections.2.6 System Expansion Planning The DEU enables 6-way expansion of any optical port. This makes it possible to add moreDRUs without having to install additional DHUs. Each DHU is equipped with six opticalports. If more than six DRUs are required by the application, aDEU may be connected to oneof the optical ports at the DHU which expands that port to six ports. If still more optical portsare required, then asecond DEU may be connected to the DHU or a second DEU may beconnected to the first DEU. The ability to cascade DEU’s in parallel or in series providesunlimited flexibility. It is physically possible to connect an unlimited number DRUs to theDHU through the installation of DEUs.The total number of DRU’s that can be served is limited by the cumulative noise effect causedby antenna combining. This number cannot be determined until the radius distance ofcoverage required at the DRU antenna is determined and the path loss attributed to thestructure are known. The system design requires that the carrier to noise differential be greaterthan the customer’s desired signal to noise ratio.If it is likely that the system will be expanded in the future, locate the DHU in such away that it caneither be used as ahub for an expanded system or replaced with aDEU which is then connected to arelocated DHU. It should also be noted that aDEU can be used as an optical regenerator. ADRUmay sometimes need to be located at apoint that is beyond the 500 or 750 meter limit (dependingon fiber type) imposed by the optical link. The solution is to install aDEU at the maximum opticallink limit (500 or 750 meters) from the DHU. This provides an additional 500 or 750 meters ofoptical link beyond the DEU for connecting the DRU.2.7 DRU Antenna Options Various antennas, shown in Figures 12 and 13, are available from ADC for use with the DRU.All antennas include a 6 foot (1.8 m) long 50-ohm coaxial cable (equipped with SMA maleconnector) for connection to the DRU. The DRU is equipped with an SMA female connectorfor connecting the antenna cable.

ADCP-75-110 • Issue 2B • July 2001 Page 22 ©2001, ADC Telecommunications, Inc.DIAMETER - 6.14 INCH (156 MM)DEPTH - 1.05 INCH (27 MM)7.26 INCHES(184 MM)3.88 INCHES(99 MM)2.26 INCHES(57 MM)8.65 INCHES(220 MM)6.55 INCHES(166 MM)2.38 INCHES(60 MM)7.90 INCHES(201 MM)2.38 INCHES(60 MM)8.65 INCHES (220 MM)4 dBi GAINCEILING-MOUNTHALLWAY2.5 dBi GAIN CEILING-MOUNTOMNIDIRECTIONAL8 dBi GAIN70 DIRECTIONAL PANEL(WALL-MOUNT) 7.5 dBi GAIN90 DIRECTIONAL PANEL(CORNER MOUNT)MOUNTING BASELENGTH - 3.85 INCHES (98 MM)ALL ANTENNAS ARE EQUIPPED WITHA 72-INCH RG58/U CABLE TERMINATED WITH A MALE SMA CONNECTORMOUNTING STUDLENGTH - 1.5 INCHES (38 mm)DIAMETER - 0.875 INCHES (22 MM) MOUNTING STUDLENGTH - 1.5 INCHES (38 mm)DIAMETER - 0.875 INCHES (22 MM) 16237-CFigure 12. 800 MHz DRU Antenna Options The DRU antennas are designed for unobtrusive mounting within an office environment. Eachtype of antenna provides aspecific coverage pattern in order to accommodate the shape of thearea where coverage is required. The ceiling-mount omni directional antenna is designed tomount in the center of the coverage area. The directional panel antenna is designed to mountvertically on one side of the coverage area. The panel antenna (800 MHz only) provides isdesigned to mount vertically in the corner of the coverage area. The ceiling mount hallwayantenna is designed to mount in the center of long corridors. Antennas other than those offeredby ADC may also be used if required.Note:To comply with Maximum Permissible Exposure (MPE) requirements, antennas mustbe installed to provide at least 20 centimeters (8 inches) of separation from all persons perFCC 47 CFR part 2.1091.

ADCP-75-110 • Issue 2B • July 2001 Page 23 ©2001, ADC Telecommunications, Inc.DIAMETER - 4.25 INCH (105 MM)DEPTH - 0.57 INCH (14 MM) 2.5 INCHES(64 MM)0.5 INCHES(13 MM)3 INCHES(76 MM)5 INCHES(127 MM)4.6 INCHES(118 MM)1.4 INCHES36 MM)4 dBi GAINCEILING-MOUNTHALLWAY2.5 dBi GAIN CEILING-MOUNTOMNIDIRECTIONALALL ANTENNAS ARE EQUIPPED WITHA 72-INCH RG58/U CABLE TERMINATED WITH A MALE SMA CONNECTORMOUNTING STUDLENGTH - 1.5 INCHES (38 mm)DIAMETER - 0.875 INCHES (22 MM) Fig 13-AMOUNTING BASELENGTH - 2.5 INCHES (64 MM)7.5 dBi GAIN90 DIRECTIONAL PANEL(COMBINATION WALLAND CORNER MOUNT)Figure 13. 1900 MHz DRU Antenna Options 2.8 External Alarm System Reporting Requirements The DHU provides normally open (NO) and normally closed (NC) dry alarm contacts forreporting minor and major alarms to an external alarm system. Aminor alarm is defined as ahigh temperature condition. Amajor alarm is defined as any fault condition except hightemperature. Connections to the alarm contacts are provided through a screw-type terminalstrip. Use category 3 or 5 cable for the alarm wires. If an external alarm system is not in use,no alarm connections are required.2.9 Frequency Band Selection Requirements (1900 MHz) The 1900 MHz version of the DHU and DRU must be configured by the installer to operate inthe appropriate forward and reverse path frequency band. Four band selections (AD, DBE,BEF, and EFC) are possible. ADIP switch on the underside of each unit is provided forselecting the required frequency band. The band selection must be done prior to installationsince the DIP switch is usually not accessible after the unit is mounted. Once the requiredselection has been made, no further band adjustments are required.

ADCP-75-110 • Issue 2B • July 2001 Page 24 ©2001, ADC Telecommunications, Inc.2.10 Maintenance Requirements The Digivance ICS requires no regular maintenance to insure continuous and satisfactoryoperation. Maintenance, as it applies to the Digivance ICS, primarily involves diagnosing andcorrecting service problems as they occur. Faults and failures arising from within theDigivannce ICS will generate an external alarm response which includes lighting an LEDindicator(s) and closing or opening aset of alarm contacts. When an alarm is reported, it willbe necessary to isolate the source of the problem by observing the LED indicators on each unitand then performing specified tests to isolate the problem. Once the source of the fault isisolated, the appropriate action can be taken to correct the problem. The only unit componentsthat can be replaced are the cooling fans which mount in the DHU and the DEU. The failure ofany other component within aunit will require replacement of the unit. Basic trouble-shootingprocedures are provided in Section 5 of this manual.2.11 System Design Recommendations Follow asystematic process when designing an in-building coverage solution. The followingsub sections outline the four phases of the in-building coverage solution design process.System design and planning services are available from ADC if required. Refer to Section 6of thismanual for additional information.2.11.1 Phase One – Initial Evaluation Qualify the Installation: Confirm that there are no extenuating circumstances that wouldprevent asuccessful installation such as: extreme cellular system issues (blocking, severeinterference, site problems, etc.), building issues, power issues, or safety issues (site shouldnot present any hazards or conditions that would make operation of the equipment unsafe).Analyze the RF Situation: Determine how the system RF link to the outside world will beprovided. Will it beadirect feed from aBTS (microcell) or an over-the-air connection via adonor antenna? If it is a donor antenna, is the customer within the coverage footprint of aserving cell or better? The coverage can be determined during the preliminary walkthrough bychecking the downlink Received Signal Strength Indication (RSSI) outside the building with aunity gain sampling antenna. Sometimes arooftop reading is needed to obtain asufficientsignal level. Note that it is an FCC violation to expand the normal coverage footprint of acellular site with an in-building product. In addition, consider the impact the system will haveon traffic, especially the busy hour. Confirm with the service provider that the expectedincrease in the volume of calls will be addressed (if needed), possibly with additionalequipment such as additional channels or a microcell.Determine the Amount of Building Attenuation: If a donor antenna will provide the RF linkto the BTS, determine if there is enough signal isolation between the donor antenna and the in-building system to avoid afeedback loop and signal degradation. This step can often beaccomplished during the preliminary walkthrough.Discuss Installation with Building Management and Engineering: Discuss all initiallyanticipated Digivance ICS coverage areas (including any obviously desirable cable routings,equipment installations, power and mechanical requirements) with the authorized client and

ADCP-75-110 • Issue 2B • July 2001 Page 25 ©2001, ADC Telecommunications, Inc.building personnel for an initial approval/confirmation. This gives a good estimate of theextent of the system work needed. Occasionally, some of the system design work can beaccomplished at this point.2.11.2 Phase Two – System Design Determine forward and reverse path loss and then design for unity gain on the uplinkand maximum power out of the DRU on the downlink:The overall purpose of theDigivance ICS is to transparently overcome attenuation losses, not to provide additional gainbeyond what is required to bring the signal to unity gain. Complete the following steps tomake this determination:1. Determine the in-building reverse path (uplink) losses at typical operating frequenciesand distances from the subscriber handset (terminal) to the DRU. This information willbe used to determine the optimal uplink signal level to the outside world.2. Determine the typical composite cell site Effective Radiated Power (ERP) into thesystem. Calculate the interface adjustment required to feed the required downlink signallevel to the DHU in order to drive the DRU output signal at the desired level.Determine the location of the DHU and its RF and AC power sources: Complete thefollowing steps to make this determination:1. Determine where and how the DHU will be mounted.2. Determine the location of the DHU AC power source.3. Determine the RF source (LIU with BTS or RIU with BTS through donor antenna) forthe DHU.4. If an LIU connection with the BTS is required, determine the distance to the DHU.5. If aRIU connection with the BTS is required, determine what type of antenna is neededand where it can be mounted.6. Determine the attenuation or amplification requirements for the DHU to BTS interface.Discuss the design of the Digivance ICS installation with building management andengineering: Explain the proposed system design with building management and engineeringpersonnel and obtain final design approval prior to installation.2.11.3 Phase Three – Installation Use industry standard practices for cabling, installation, and powering to complete thefollowing:1. Install the DHU as described in Section 3 of this manual and adjust the RF interfacelevels based on the system design specifications. Additional information concerning theDHU to BTS interface is provided in the Digivance ICS Remote Interface Unit User Manual(ADCP-75-113) and in the Digivance ICS Local Interface Unit User Manual (ADCP-75-114).

ADCP-75-110 • Issue 2B • July 2001 Page 26 ©2001, ADC Telecommunications, Inc.2. Install aDRU as described in the Digital Remote Unit Installation Instructions (ADCP -75-112). If a donor antenna is used, install the DHU and RIU close to the donor antenna.3. Conduct an initial performance evaluation and complete the following:a) Confirm proper isolation, signal quality, and power levels.b) Make test calls from DRU service area and evaluate call quality (confirm withservice provider if desired).c) Address performance issues as needed.4. Install the remaining DRUs and also any DEUs as described in the Digital ExpansionUnit Installation Instructions (ADCP-75-111). Test call quality and range of each DRUas needed.5. Check powering and alarm functions of entire system per Digivance ICS specifications.2.11.4 Phase Four - Performance Evaluation Complete the following to evaluate the performance of the Digivance ICS:1. Evaluate the forward path (downlink) and reverse path (uplink) RF signal levels andquality.2. Make continuous calls from DRU to DRU, checking all service areas, seams, andcoverage boundaries for call quality (both DL and UL). Address all quality issues asneeded.3. Place calls both leaving and entering the building(s), in parking lots, etc. Address allquality issues as needed.4. Contact client/service provider to inform them when the Digivance ICS is operational.

usermanual

ADCP-75-110 • Issue 2B • July 2001 Page 27 ©2001, ADC Telecommunications, Inc.3 DIGITAL HOST UNIT INSTALLATION PROCEDURE This section provides the installation procedures for the DHU. Installation of the DEU(s) andDRU(s) may proceed separately from the installation of the DHU. The installation proceduresfor the DEU are provided in the Digital Expansion Unit Installation Instructions (ADCP -75-111) which are shipped with the DEU. The installation procedures for the DRU, the DRUantennas, and the ac/dc converter (optional DRU accessory) are provided in the DigitalRemote Unit Installation Instructions (ADCP-75-112) which are shipped with the DRU. Whenall units of the Digivance ICS have been installed, refer to Section 4 of this manual for thesystem power up and test procedures.3.1 System Plan Review and Pre-Installation Cable Routing Before beginning the installation, review the system plan with the system engineer. Make sureeach equipment installation site is identified and located and all cable runs are mapped out.The coaxial, DC power, and fiber optic cables may be routed between the various equipmentlocations before the equipment is installed. Whenever possible, route fiber optic cablesthrough conduit or a guideway such as the FiberGuide system. Avoid routing fibers throughladder type cable racks or troughs that do not provide sufficient support to limit bending orprevent accidental damage. Tie-wrapping is not recommended as ameans of securing fiberoptic cables. Make sure to leave sufficient slack at each equipment location for connectorizingand cable management. The procedures for terminating the cables and for connecting thecables to the DHU are provided in the sections that follow.3.2 Tools and Materials The following tools are required in order to complete the procedures in this section:• Box cutter• Pencil or scribe• Medium and small size flat-bladed screwdrivers• TORX screwdriver (T20 bit)• Pliers• Wire cutters• Wire stripper• Non-conductive probe (1900 MHz units only)• Tool kit for attaching RJ-45 male connectors to category 3 or 5 cable• Tool kit for attaching N-type male connectors to coaxial cable• Tool kit for attaching LC connectors to multimode fiber optic cable• Drill and assorted drill bits (wall-mount installations only)• Multimeter• Optical power meter• Laser light sourceFCC ID: F8I-DVICS1900-1

ADCP-75-110 • Issue 2B • July 2001 Page 28 ©2001, ADC Telecommunications, Inc.The following materials are required in order to complete the procedures in this section:• Wall-mount fasteners (wall-mount applications only)• #22 AWG (0.40 mm) category 3or 5cable (for power cable and external alarm connections)• RJ-45 male connectors (for power cable)• #18 AWG (1.00 mm) insulated stranded copper wire (for chassis grounding wire)• Ring terminal for #18 wire (for chassis ground wire connection)• 50 or 62.5 micron core multi-mode fiber optic cable• LC-type field installable connectors• High performance, flexible, low loss 50-ohm coaxial cable• N-type male connectors• Wire ties3.3 Unpacking and Inspection This subsection provides instructions for opening the shipping boxes, verifying that all partshave been received, and verifying that no shipping damage has occurred. Use the followingprocedure to unpack and inspect the DHU:1. Open the shipping carton and carefully unpack the DHU from the protective packingmaterial.2. Check the DHU for broken or missing parts. If there are any damages, contact ADC (seeSection 6at the end of this manual) for an RMA (Return Material Authorization) and toreorder if replacement is required.3.4 Frequency Band Selection Procedure (1900 MHz DHU only) The 1900 MHz version of the DHU may be configured to operate at any one of four frequencybands. ADIP switch is provided on the underside of the DHU for selecting the requiredfrequency band. Use the following procedure to set the DIP switch to provide the required1900 MHz frequency band:1. Determine the required frequency band for the DHU (AD, DBE, BEF, or EFC) asspecified in the system design plan.2. Orient the DHU as shown in Figure 14 and then locate the small hole in the bottom ofthe DHU that provides access to the band select DIP switch.3. Use anon-conductive probe to align the DIP switch sliding handles to provide therequired frequency band (see Figure 14).4. Place the copper sticker provided with the DHU over the small opening that providesaccess to the DIP switch.Note: The copper sticker provides EMI/RFI shielding. Do not use some other type of materialto cover the DIP switch access hole.

ADCP-75-110 • Issue 2B • July 2001 Page 29 ©2001, ADC Telecommunications, Inc.ALIGN DIP SWITCH HANDLES ASSHOWN ON THE LABEL TO PROVIDESPECIFIED FREQUENCY BANDFig 13-AFigure 14. 1900 MHz DHU Frequency Band Selection 3.5 Mounting Procedure The DHU may be either rack-mounted or wall-mounted. Of the procedures that follow, usewhich ever procedure is appropriate for the installation:Note: To insure that all optical connectors and transceivers remain dust-free duringinstallation, leave all dust caps and dust protectors in place until directed to removethem for connection.3.5.1 Rack Mount Installation The DHU may be mounted in either a19-inch or 23-inch EIA or WECO equipment rack. BothUS standard and metric machine screws are included for rack mounting the DHU. Whenloading the DHU in arack, make sure the mechanical loading of the rack is even to avoid ahazardous condition such as aseverely unbalanced rack. The rack should safely support thecombined weight of all the equipment it holds. In addition, the maximum recommendedambient temperature for the DHU is 50º C (122º F). Allow sufficient air circulation or spacebetween units when the DHU is installed in amulti-unit rack assembly because the operatingambient temperature of the rack environment might be greater than room ambient.Warning:Wet conditions increase the potential for receiving an electrical shock wheninstalling or using electrically-powered equipment. To prevent electrical shock, never installor use electrical equipment in awet location or during alightning storm.Use the following procedure to install the DHU in the equipment rack:1. The DHU is shipped with the mounting brackets installed for 19-inch rack installations.If mounting the DHU in a19-inch rack, proceed to step 4. If mounting the DHU in a 23-inch rack, proceed to step 2.2. Remove both mounting brackets from the DHU (requires TORX screwdriver with T20 bit)

ADCP-75-110 • Issue 2B • July 2001 Page 30 ©2001, ADC Telecommunications, Inc.3. Reinstall both mounting brackets so the long side of the bracket is flush with the DHUfront panel as shown in Figure 15. Use the screws removed in step 2to re-attach thebrackets to the DHU enclosure.16426-AREMOVE AND REINSTALL MOUNTINGBRACKETS AS SHOWN FOR INSTALLATION IN 23-INCH RACKSFigure 15. Installing the Mounting Brackets for 23-Inch Rack Installations 4. Position the DHU in the designated mounting space in the rack (per system design) andthen secure the mounting brackets to the rack using the four machine screws provided(use #12-24 screws or M6 x10screws, whichever is appropriate) as shown in Figure 16.Note:Provide aminimum of 3 inches (76 mm) of clearance space on both the left andright sides of the DHU for air intake and exhaust.16165-A Figure 16. DHU Rack Mount Installation

ADCP-75-110 • Issue 2B • July 2001 Page 31 ©2001, ADC Telecommunications, Inc.3.5.2 Wall-Mount Installation The DHU may be mounted from any flat vertical surface. It is recommended that abackerboard such as 3/4-inch plywood be applied over the mounting surface to provide asecure basefor attaching the DHU. Two mounting holes are provided in the cable management tray forsecuring the DHU to the mounting surface. The fasteners must be provided by the installer.Use the following procedure to wall-mount the DHU:Warning:Wet conditions increase the potential for receiving an electrical shock wheninstalling or using electrically-powered equipment. To prevent electrical shock, never installor use electrical equipment in awet location or during alightning storm.1. Obtain the appropriate fasteners (lag bolts, screw anchors, etc.) for securing the DHU tothe mounting surface.2. Position the DHU on the mounting surface in the specified location (per the systemdesign) with the front panel facing up as shown in Figure 17.Note:Provide aminimum of 3 inches (76 mm) of clearance space on both the left andright sides of the DHU for air intake and exhaust.16427-ABACKER BOARD SUCHAS 3/4-INCH PLYWOODFigure 17. DHU Wall-Mount Installation 3. Using the DHU as atemplate, mark the location of the mounting holes on the mountingsurface.Note:The mounting holes in the DHU cable management tray are spaced 11-21/32inches (296 mm) center to center.

ADCP-75-110 • Issue 2B • July 2001 Page 32 ©2001, ADC Telecommunications, Inc.4. Set the DHU aside and then drill appropriately sized holes in the mounting surface forthe fasteners.5. Partially install the fasteners in the drilled holes. Leave the head of each fastenerprotruding about 1/4 inch (6 mm) from the mounting surface.6. Hang the DHU from the fasteners and then securely tighten each fastener.3.6 Chassis Ground Connection Astud is provided on the rear side of the chassis for connecting agrounding wire to thechassis. Use the following procedure to connect the grounding wire to the chassis and to routethe grounding wire to an approved earth ground source:1. Obtain alength of #18 AWG (1.00 mm) insulated stranded copper wire for use as achassis grounding wire.2. Terminate one end of the wire with aring terminal.3. Locate the chassis ground stud at the rear of the DHU as shown in Figure 18.16169-AFigure 18. Chassis Ground Stud 4. Attach the ring end of the wire to the chassis ground stud (see Figure 18).5. Route the free end of the chassis grounding wire to an approved (per local code orpractice) earth ground source.6. Cut the chassis grounding wire to length and connect it to the approved ground source asrequired by local code or practice.Note:Be sure to maintain reliable grounding for rack and wall mounted equipment. Payparticular attention to ground source connections.

ADCP-75-110 • Issue 2B • July 2001 Page 33 ©2001, ADC Telecommunications, Inc.3.7 Coaxial Cable Connections The RF interface between DHU and the BTS is supported through apair of type Nfemaleconnectors mounted on the DHU front panel. One connector provides the coaxial cableconnection for the forward path (downlink) signal. The other connector provides the coaxialcable connection for the reverse path (uplink) signal. Coaxial cables link the DHU to the BTSthrough an interface device such as the LIU or the RIU. Use the following procedure to installthe forward and reverse path coaxial cables and connect them to the DHU:1. Obtain the required lengths of high performance, flexible, low loss 50-ohm coaxialcommunications cable (RG 400 or equivalent) for all coaxial connections.2. Route the forward path and reverse path coaxial cables (if not already routed) betweenthe DHU and the specified BTS interface device (per system design) and cut to therequired length. Allow sufficient slack for dressing and organizing cables at the DHU.3. Terminate each cable with atype Nmale connector following the connector supplier’srecommendations.4. Connect the forward path cable to the RF IN connector on the DHU front panel asshown in Figure 19.5. Connect the reverse path cable to the RF OUT connector on the DHU front panel asshown in Figure 19.16428-ATYPE-N MALE CONNECTOR RF IN CONNECTOR(FORWARD PATH)RF OUT CONNECTOR(REVERSE PATH)Figure 19. Forward and Reverse Path Coaxial Cable Connections 6. Dress and secure cables at the DHU per standard industry practice.7. Connect the forward and reverse path cables to the LIU (microcell) or the RIU (donorantenna) as specified in the instructions provided with that unit.8. Complete all remaining coaxial cable connections between the LIU and the BTS orbetween the RIU and the donor antenna as specified in the instructions provided with theinterface unit.

ADCP-75-110 • Issue 2B • July 2001 Page 34 ©2001, ADC Telecommunications, Inc.3.8 Ports 1–6 Optical Connections The optical interface between the DHU and each DEU or DRU is supported by six opticalports. Each of the six optical ports provides aduplex LC type optical transceiver which ismounted on the DHU front panel. One side of the transceiver provides the optical fiberconnection for the forward path (downlink) signal. The other side of the transceiver providesthe optical fiber connection for the reverse path (uplink) signal. Use the following procedure toinstall the forward and reverse path optical fibers and to connect them to the DHU:Danger:This equipment uses aClass 1Laser according to FDA/CDRH rules. Laser radiationcan seriously damage the retina of the eye. Do not look into the ends of any optical fiber. Donot look directly into the optical transceiver of any digital unit or exposure to laser radiationmay result. An optical power meter should be used to verify active fibers. Aprotective cap orhood MUST be immediately placed over any radiating transceiver or optical fiber connectorto avoid the potential of dangerous amounts of radiation exposure. This practice also preventsdirt particles from entering the transceiver or connector.1. Obtain the required lengths of 50 or 62.5 micron core multi-mode fiber optic cable.2. Route the fiber optic cable between the DHU and the DEU or DRU (if not alreadyrouted) and cut to required length. Allow sufficient slack for dressing and organizing thecables at each unit. Maintain aminimum bend radius of 2 inches (50 mm).Note:The maximum distance for routing 50 micron core fiber optic cable is 750 meters(2,461 feet). The maximum distance for routing 62.5 micron core fiber optic cable is 500meters (1,641 feet).3. Terminate each optical fiber with afield-installable LC type fiber optic connector asshown in Figure 20. Follow the instructions provided by the connector manufacturer forinstalling the connector.4. Test each fiber for optical loss as described in Subsection 5.4.2 of this manual.5. Designate one of the fibers as the forward path link and the other as the reverse path linkand attach an identification tag to each fiber end next to the connector.6. Use the plastic joiner provided with the LC connectors to join the DHU Port 1forwardand reverse path connectors together (see Figure 20). Make sure the forward path andreverse path connectors are oriented as shown.Note:When viewing any Port 1-6 optical transceiver from the front, the forward path port ison the left and the reverse path port is on the right.7. Remove the dust caps from the optical fiber connectors and the port 1optical transceiver.Note:Leave the dust cap in place on any unused optical port.8. Clean each connector (follow connector supplier’s recommendations) and then insert theoptical link connector pair into DHU optical port 1 (see Figure 20).

ADCP-75-110 • Issue 2B • July 2001 Page 35 ©2001, ADC Telecommunications, Inc.16429-BREVERSE PATH (RX)CONNECTORFORWARD PATH (TX)CONNECTOROPTICAL CONNECTORASSEMBLY DETAILPORT 1 OPTICALTRANSCEIVEROPTICALCONNECTORCABLEGUIDESCABLE GUIDEDETAILDESIGNATION CARD AND HOLDER DETAILHOLDERCARDCLEARPLASTICCOVERFigure 20. Ports 1–6 Fiber Optic Cable Connections 9. Place the optical fibers within the cable guides provided on the cable management tray (seeFigure 20) and then dress and secure the fibers at the DHU per standard industry practice.10. Connect the forward and reverse path optical fibers to the DEU or the DRU as specifiedin the instructions provided with that unit.11. Use the designation card provided (see Figure 20) to indicate the location and name ofthe DRU or DEU that is connected to the optical fibers. The designation card holder maybe attached to any convenient flat surface such as the DHU cable management tray12. Repeat steps 1–11 for each remaining optical port.3.9 DC Power Connections The DC power interface between the DHU and each DRU is supported by six RJ-45 femaleconnectors. Each DHU RJ-45 connector provides nominal 48 Vdc power for the associatedDRU except when the DRU is powered with an ac/dc converter. A category 3 or 5 twisted paircable is used to feed the power from the DHU to the DRU. Use the following procedure toinstall the DC power cable and to connect it to the DHU.1. Obtain the required length of category 3 or 5 twisted pair cable.2. Route the cable between the DHU and the DRU (unless already routed) and then cut torequired length. Allow sufficient slack for dressing and organizing the cable at the DHU.Note:The maximum distance for routing power cable is 500 meters (1,641 feet).

ADCP-75-110 • Issue 2B • July 2001 Page 36 ©2001, ADC Telecommunications, Inc.3. Terminate each end of the cable with amale RJ-45 connector. Match the wire color tothe connector pin as specified in Table 6.Caution:The DRU will be damaged if the RJ-45 connector is wired incorrectly.Table 6. RJ-45 Connector Pin Designations PIN NUMBER WIRE COLOR CONNECTOR PINS 12345678White/GreenGreenWhite/OrangeOrangeWhite/BlueBlueWhite/BrownBrownPIN1PIN8+48 VDC ON PINS 1, 3, 5, AND 7RETURN ON PINS 2, 4, 6, AND 816180-A4. Perform acontinuity test to verify that each wire is properly connected to the terminatingRJ-45 connector and check the connector for correct polarity (see diagram in Table 6).5. Connect the DC power cable to the DHU port 1 DC PWR jack as shown in Figure 21.16430-ARJ-45 CONNECTORDETAILPORT 1 DC POWERCONNECTORRJ-45CONNECTORCABLEGUIDESCABLE GUIDEDETAIL18Figure 21. 48 Vdc Power Cable Connection

ADCP-75-110 • Issue 2B • July 2001 Page 37 ©2001, ADC Telecommunications, Inc.6. Place the DC power cable within the cable guides provided (see Figure 21) and thendress and secure the cable at the DHU per standard industry practice.7. Connect the DC power cable to the DRU as specified in the instructions provided withthat unit.8. Repeat steps 1–7 for each remaining DRU that will be powered by the DHU.3.10 Extermal Alarm System Connections The alarm interface between the DHU and an external alarm system is supported by a six-terminal plug (with screw-type terminals) that connects to areceptacle mounted on the DHUfront panel. The terminal plug provides connections to normally open (NO) and normallyclosed (NC) dry type alarm contacts for both minor and major alarms. Acategory 3 or 5 cableis typically used to connect the DHU to the external alarm system. Use the followingprocedure to install the alarm wiring and connect it to the DHU:1. Obtain the required length of category 3 or 5 cable.2. Route the cable between the DHU and the external alarm system (if not already routed)and then cut to required length. Allow sufficient slack for dressing and organizing thecable at the DHU.3. Strip back the outer cable sheath and insulation to expose the wires at both ends of thecable and strip back 0.2 inches (5 mm) of insulation each wire.4. Connect the Major alarm wire pair to the MAJOR COM/NC or MAJOR COM/NOterminals (whichever is required by the external alarm system) on the DHU alarmterminal connector (supplied with DHU) as shown in Figure 22.16370-AALARMCONNECTORMAJORALARMWIRESMINORALARMWIRESALARM CONNECTORDETAILFigure 22. External Alarm System Connections

ADCP-75-110 • Issue 2B • July 2001 Page 38 ©2001, ADC Telecommunications, Inc.5. Connect the Minor alarm wire pair to the MINOR COM/NC or MINOR COM/NOterminals (whichever is required by the external alarm system) on the DHU alarmterminal connector as shown in Figure 22.6. Connect the Major and Minor alarm wire pairs to the appropriate terminals on theexternal alarm system.7. Dress and secure cable per standard industry practice.3.11 AC Power Connections The AC power interface between the DHU and the AC power source is supported by a 3-wireAC power cord connector located on the DHU front panel. The AC connector provides aconnection point for the power cord which is provided separately with the DHU. Use thefollowing procedure to install the AC power cord:1. Locate the AC power cord which is provided separately with the DHU. Use only the ACpower cord provided with the DHU or an equivalent UL/CUL listed 3-conductor, 18AWG cord terminated in amolded-on plug cap rated 125 V, 15 A with amaximumlength of 6 feet (1.8 m).Note:The DHU is intended to be used with a 3-wire grounding type plug which has agrounding pin. Equipment grounding is required to ensure safe operation. Do not defeatthe grounding means. Verify DHU is reliably grounded when installed.2. Place the DHU AC power ON/OFF switch, shown in Figure 23, in the OFF position(press O).16431-AAC POWER CORDFigure 23. AC Power Connection 3. Connect the receptacle end of the power cord to the AC connector on the DHU.4. Route the plug end of the power cord to the specified AC outlet (per the system design)and connect plug to outlet.Warning:The current rating of the DHU is 2.0 Amps at 120 Vac.Avoid overloading circuitswhich may cause damage to over-current protection devices and supply wiring.

ADCP-75-110 • Issue 2B • July 2001 Page 39 ©2001, ADC Telecommunications, Inc.5. Dress and secure cable per standard industry practice.6. When all units of the Digivance ICS have been installed, refer to Section 4 of thismanual for the system power up and test procedures.3.12 Create As-Built Drawing Following installation, create an “as-built” drawing of the complete Digivance ICS system.Using adrawing of the building floor plan, show the installed location of each piece ofequipment including the various Digivance electronic units, the antennas, the interface units,and the microcell (if used). In addition, show the location and routing of all copper, coaxial,and fiber optic cable runs used with the system. Retain the as-built drawing for reference whentroubleshooting or when planning for system expansion.

ADCP-75-110 • Issue 2B • July 2001 Page 40 ©2001, ADC Telecommunications, Inc.4 SYSTEM OPERATION This section provides guidelines for turning-up the Digivance ICS, verifying that all units areoperating properly, testing to ensure that all performance requirements are satisfied, andcorrecting any installation problems. This process assumes that the various units that comprisethe Digivance ICS have been installed in accordance with the system design plan and the BTSinterface unit (LIU or RIU) has been installed and tested. The procedures for installing andtesting the LIU or RIU are provided in the user manual that is shipped with the unit.4.1 Tools and Materials The following tools and materials are required in order to complete the procedures in thissection:• Portable spectrum analyzer• Portable test transmitter• Cell phone• Pencil or pen• Writing pad4.2 Turn-Up System and Verify Operation The process of turning-up the system and verifying operation involves powering up thevarious system components and then verifying that the LED indicators show normal operation.Refer to Tables 7, 8, and 9as needed for acomplete description of the unit LED indicators.Use the following procedure to power-up the system. If any unit does not respond asdescribed, refer to Subsection 4.3 for the correction procedures.1. Temporarily disconnect the alarm system or notify alarm system provider that testing isin progress.2. Verify that each AC powered unit is connected to the appropriate outlet.3. Place the ON/OFF switch on the DHU in the ON position (press I).4. Verify that the UNIT LED and the OVERDRIVE LED on the DHU turn yellow (forapproximately 6seconds) and then green.5. Place the PORT 1ON/OFF switch on the DHU in the ON position (press I).6. If aDEU is connected to port 1, proceed to step 7. If aDRU is connected to port 1, skipsteps 7and 8and proceed to step 9.7. Place the ON/OFF switch on the DEU in the ON position (press I).8. Verify that the UNIT LED on the DEU turns yellow (for approximately 6seconds) andthen green.9. Verify that the PORT 1OK/NOK LED on the DHU turns yellow (for approximately 6seconds) and then green.

ADCP-75-110 • Issue 2B • July 2001 Page 41 ©2001, ADC Telecommunications, Inc.10. If aDEU is connected to PORT 1, proceed to step 11. If aDRU is connected to PORT 1,skip steps 11 through 13 and proceed to step 14.11. Verify that the HOST PORT LED on the DEU turns green.12. Place the PORT 1ON/OFF switch on the DEU in the ON position (press I).13. Verify that the PORT 1OK/NOK LED on the DEU turns yellow (for approximately sixseconds) and then green.14. Verify that the STATUS LED on the DRU connected to PORT 1turns yellow (forapproximately six seconds) and then green.15. Repeat the procedure covered in steps 5through 14 for each of the remaining DHUoptical ports (ports 2through 6) that is connected to aDEU or a DRU.16. Reconnect the alarm system and notify alarm system provider that system is operational.Table 7. Digital Host Unit LED Indicators INDICATOR COLOR DESCRIPTION UNITLED GreenYellowRedOffIndicates when the DHU is normal or faulty.DHU in normal state, no faults detected.DHU in power-up state or DHU high temperature fault detected. (see Note)DHU fault detected (see Note).AC power off to DHU or DHU internal fault.PORT 1–6OK/NOKLEDs GreenYellowRedRed(blinking)OffIndicates if any connected DEU or DRU is normal or faulty or if theoptical inputs from any connected DEU or DRU are normal or lost.All connected units in normal state, no faults detected.DHU in power-up state or high temperature fault detected in DEU. (see Note)Fault detected in any connected DEU or DRU, *no reverse path opticalsignal from any connected DEU or DRU detected, or excessive reversepath errors detected from any connected DEU or DRU. (see Note)*No reverse path optical signal from any connected DEU or DRU detected,Port disabled (via front panel switch) or DHU internal fault.*Early versions of the DHU use a steady red LED to indicate all majorfault conditions. Later versions of the DHU use a blinking red LED toindicate no optical signal received from the connected DRU or DEU.OVERDRIVELEDGreenYellowRedIndicates when the forward path RF input is below or above theoverdrive threshold.RF input signal level at DHU below overdrive threshold.DHU in power-up state.RF input signal level at DHU above overdrive threshold.Note:Detection of any fault will generate an alarm. A high temperature fault will generate aminoralarm (yellow LED). All other types of faults will generate amajor alarm (red LED).FCC ID: F8I-DVICS1900-1

ADCP-75-110 • Issue 2B • July 2001 Page 42 ©2001, ADC Telecommunications, Inc.Table 8. Digital Expansion Unit LED Indicators INDICATOR COLOR DESCRIPTION UNITLED GreenYellowRedOffIndicates when the DEU is normal or faulty.DEU in normal state, no faults detected.DEU in power-up state or DEU high temperature fault detected. (see Note)DEU internal fault detected. (see Note)AC power off to DEU or DEU internal fault.HOST PORTLEDGreenRed(steady orblinking)OffIndicates when the optical inputs from the DHU or supportingDEU are normal or lost.DHU or supporting DEU in normal state, no faults detected.No forward path optical signal from DHU or supporting DEU detectedor excessive forward path errors detected. (see Note).DEU internal fault.PORT 1–6OK/NOKLEDs GreenYellowRedRed(blinking)OffIndicates if any connected DEU or DRU is normal or faulty or if theoptical inputs from any connected DEU or DRU are normal or lost.DRU or remote DEU in normal state, no faults detected.DEU in power-up state.Fault detected in any connected DEU or DRU, *no reverse path opticalsignal from any connected DEU or DRU detected, or excessive reversepath errors detected from any connected DEU or DRU. (see Note)*No reverse path optical signal from any connected DEU or DRUdetected.Port disabled (via front panel switch) or DEU internal fault.*Early versions of the DEU use a steady red LED to indicate all majorfault conditions. Later versions of the DEU use a blinking red LED toindicate no optical signal received from the connected DRU or DEU.Note:Detection of any fault will generate an alarm. A high temperature fault will generate aminoralarm (yellow LED). All other types of faults will generate amajor alarm (red LED).Table 9. Digital Remote Unit LED Indicator INDICATOR COLOR DESCRIPTION STATUSLEDGreenYellowRedRed(blinking)OffIndicates if the DRU is normal or faulty or if the forward path opticalinputs to the DRU are normal or lost.DRU in normal state, no faults detected.DRU in power-up state.DRU internal fault detected, *no forward path optical signal detected, orexcessive forward path errors detected. (See Note)*No forward path optical signal from the DHU or DEU detected.DC power off to DRU or DRU internal fault.*Early versions of the DRU use a steady red LED to indicate all majorfault conditions. Later versions of the DRU use a blinking red LED toindicate no optical signal received from the DHU or DEU.Note:Detection of any fault will generate an alarm. A high temperature fault will generateaminor alarm (yellow LED). All other types of faults will generate amajor alarm (red LED).

ADCP-75-110 • Issue 2B • July 2001 Page 43 ©2001, ADC Telecommunications, Inc.4.3 Correct Installation Problems Use the procedures outlined in Table 10 to troubleshoot various installation problems.Table 10. Troubleshooting Installation Problems PROBLEM 1 All LED indicators on the DHU or DEU stay off when the ON/OFF switch is placed in the ON position. DHU OR DEU = RED= OFF= GREEN16432-A POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. AC power source is turned off.2. Faulty AC power cord.3. Faulty DHU or DEU.1. Verify that the AC circuit breaker is turned on orthat afunctional fuse is installed.2. Test AC power cord and repair/replace as required.3. Replace faulty DHU or DEUPROBLEM 2 The UNIT LED indicator on the DHU or DEU is RED. DHU OR DEU = RED= OFF= GREEN16433-A POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Faulty DHU or DEU. 1. Replace faulty DHU or DEUPROBLEM 3 The OVERDRIVE LED indicator on the DHU is RED. DHU = RED= GREEN16434-A POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Forward path RF input level at the DHU istoo high 1. Reduce forward path gain by inserting additionalattenuation in the forward path signal.PROBLEM 4 The OK/NOK LED indicator on the DHU or DEU is steady RED or blinking RED and the STATUS indicator on the corresponding DRU is GREEN. DHU OR DEUFORWARD PATH LINKREVERSE PATH LINKDRU 3 = RED= GREEN16435-A POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Faulty reverse path optical link.2. Faulty optical transmit port at DRU.3. Faulty optical receive port at DHU or DEU.1. Test optical link and repair or replace as required.2. Test DRU with optical loopback. Replace if faulty.3. Connect optical link to another optical port atthe DHU or DEU. If problem is corrected,replace the DHU or DEU.PROBLEM 5 The OK/NOK LED indicator on the DHU or DEU is GREEN and the STATUS indicator on the corresponding DRU is RED. DHU OR DEUFORWARD PATH LINKREVERSE PATH LINKDRU 3 = RED= GREEN16436-A POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Faulty forward path optical link. (Earlyversion of DHU only)2. Faulty optical receive port at DRU.3. Faulty optical transmit port at DHU or DEU.1. Test optical link and repair or replace as required.2. Replace DRU.3. Connect optical link to another optical port atthe DHU or DEU. If problem is corrected,replace the DHU or DEU.(continued)

ADCP-75-110 • Issue 2B • July 2001 Page 44 ©2001, ADC Telecommunications, Inc.Table 10. Troubleshooting Installation Problems, continued PROBLEM 6 The OK/NOK LED indicator on the DHU or DEU is RED or blinking RED and the STATUS indicator on the corresponding DRU is RED or blinking RED. DHU OR DEUFORWARD PATH LINKREVERSE PATH LINKDRU 3 = RED= GREEN16437-A POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Forward and reverse path optical linksreversed.2. Faulty forward and reverse path optical links.3. Faulty DHU, DEU, or DRU.1. Verify forward and reverse path opticalconnections at the DHU or DEU are correct.2. Test optical links and repair or replace as required.3. Replace defective unit.PROBLEM 7 The OK/NOK LED indicator on the DHU or DEU is RED or blinking RED and the HOST PORT LED indicator on the corresponding remote DEU is GREEN. DHU OR DEUFORWARD PATH LINKREVERSE PATH LINK REMOTE DEU(Port 3)= RED= OFF= GREEN16438-A POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Faulty reverse path optical link.2. Faulty optical transmit port at remote DEU.3. Faulty optical receive port at DHU or DEU.1. Test optical link and repair or replace as required.2. Replace remote DEU.3. Replace DHU or DEU.PROBLEM 8 The OK/NOK LED indicator on the DHU or DEU is GREEN and the HOST PORT LED indicator on the corresponding remote DEU is RED or blinking RED. DHU OR DEUFORWARD PATH LINKREVERSE PATH LINK REMOTE DEU(Port 3) = RED= OFF= GREEN16439-A POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Faulty forward path optical link.2. Faulty optical receive port at remote DEU.3. Faulty optical transmit port at DHU or DEU.1. Test optical link and repair or replace as required.2. Replace remote DEU.3. Replace DHU or DEU.PROBLEM 9 The OK/NOK LED indicator on the DHU or DEU is RED or blinking RED and the HOST PORT LED indicator on the corresponding remote DEU is RED or blinking RED. DHU OR DEUFORWARD PATH LINKREVERSE PATH LINK REMOTE DEU(Port 3) = RED= OFF= GREEN16440-A POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Forward and reverse path optical linksreversed.2. Faulty forward and reverse path optical links.1. Switch forward and reverse path opticalconnections at the DHU or DEU.2. Test optical links and repair or replace as required.PROBLEM 10 The STATUS LED indicator on the DRU stays OFF when the PORT 1-6 ON/OFF switch at the DHU or DEU is placed in the ON position or when the ac/dc converter is connected. DHU OR DEUFORWARD PATH LINKREVERSE PATH LINKDRU 3 = RED= OFF= GREEN16441-A POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Faulty DC power cord or plug not seated.2. DC power cord too long.3. Insufficient DC power output from DHU,DEU, or ac/dc converter.1. Test DC power cord and plug. Correct as required.2. Verify power cord does not exceed 500 meters.3. Verify DC voltage level at DRU is between 34and 48 Vdc. Replace DHU, DEU, or ac/dcconverter if voltage is outside specified range.

ADCP-75-110 • Issue 2B • July 2001 Page 45 ©2001, ADC Telecommunications, Inc.4.4 Test System Performance Testing the performance of the system involves completing various RF tests and telephoneservice tests that verify if the system is functioning properly. Use the following procedure totest the system performance:1. Verify that the forward path (downlink) input signal level at the DHU is optimized. Thepeak COMPOSITE forward path input signal level at the DHU should be set at–20 dBm.Note:In aCDMA system, the power level is dependent on the traffic. For optimumoperation in aCDMA system, the input signal level should be set below the level of thepilot signal. Adjust level based upon observation of overload indicator during trafficpeaks (busy hour).2. Verify that the reverse path (uplink) signal level at the local BTS or donor antenna isoptimized. Note that the reverse path output signal level required is dependent on serviceprovider signal to noise requirements, ICS system noise floor, the service providerequipment, and the system configuration.3. Check and record the Received Signal Strength Indication (RSSI) and any spuriousemission levels at and between all DRU antennas. Analyze all DRUs and the DHUinterface using aspectrum analyzer.4. Plot the RSSI levels on a floor plan of the building and check against the pre-installationRSSI levels to determine the overall and average RSSI improvement attributed to theDigivance ICS. Check the entire Digivance coverage area.5. Verify call processing and voice quality within the coverage areas. Initiate and receivemultiple long and short duration calls. Document the performance and address any issuesas calls are processed within the entire coverage area. Assuming a properly functioningserver RF link and BTS and a properly designed and optimized ICS system, there shouldbe no clicks, mutes, clipping, or crackles within the coverage area. In awireless officeapplication, hand off will not occur.6. If the DHU interfaces with alocal BTS (microcell), verify the handoff function byplacing acall and confirming handoffs between the Digivance/microcell coverage areaand the outdoor macrocell coverage area (macro system) and vice versa. The handoffshould take place without any noticeable call quality or performance issues.7. If the DHU interfaces with aremote BTS through a donor antenna, verify call quality byplacing acall and then walking between the Digivance coverage area and an areareceiving good coverage directly from the cell site base station. There should be nonoticeable difference in call quality.8. Following service provider guidelines, test the 411 and 911 links to verify the routing ofemergency and special services calls on local BTS configurations.9. Verify that the alarm reporting system functions properly by turning the DHU off. Thisshould generate amajor alarm and operate aset of alarm contacts. Check for alarmconfirmation from the service provider’s local switch and Network Operations Center(NOC). Aminor alarm (high temperature fault condition) can be checked by opening orclosing (which ever applies) the minor alarm lead wires at the DHU. Note that this testsonly the external alarm system and does not verify operation of the Digivance alarmreporting system.

ADCP-75-110 • Issue 2B • July 2001 Page 46 ©2001, ADC Telecommunications, Inc.5 SYSTEM MAINTENANCE PROCEDURES This section explains the alarm reporting system, provides amethod for isolating andtroubleshooting faults, and provides procedures for replacing the DHU or DEU cooling fans.The Digivance ICS requires no regular maintenance to insure continuous and satisfactoryoperation. Maintenance, as it applies to the Digivance ICS, primarily involves diagnosing andcorrecting service problems as they occur. When an alarm is reported, it will be necessary tofollow asystematic troubleshooting procedure to locate the problem. Once the source of theproblem is isolated, the appropriate corrective action can be taken to restore service. The onlyunit components that can be replaced are the cooling fans which mount in the DHU and DEU.The failure of any other component within aunit will required replacement of that unit.5.1 Tools and Materials The following tools and materials are required in order to complete the procedures in thissection:• ESD wrist strap• IR filtering safety glasses• Optical loopback device (such as Stratos Lightwave LC5-103-03) and LC duplex adapter• Optical power meter• Magnification device for inspecting LC connectors• Laser light source• Multimeter• Cell phone• RJ-45 circuit access tool (such as the Harris 8-wire Banjo Adapter)• Medium and small size flat-bladed screwdrivers• TORX screwdriver (T10)5.2 Fault Detection and Alarm Reporting Detection of a fault by the Digivance ICS will generate an external alarm response. LEDindicators are provided on the front panel of the various units to indicate when afault isdetected. In addition to LED indicators, the DHU also provides normally open (NO) andnormally closed (NC) dry alarm contacts for reporting minor and major alarms to an externalalarm system. Aminor alarm is defined as ahigh temperature condition. Amajor alarm isdefined as any fault condition except high temperature.When the DHU alarm contacts are connected to an external alarm system, detection of a faultwill generate an alarm at the Network Operations Center (NOC). However, various types offaults may not generate an alarm response. In this case, the first indication of a problem willprobably be from cell phone users reporting aloss of service or poor service. Whenever aproblem is reported, whether by a external alarm system or by a call from auser, refer toSubsection 5.3 to isolate and correct the fault.

ADCP-75-110 • Issue 2B • July 2001 Page 47 ©2001, ADC Telecommunications, Inc.5.3 Fault Isolation and Troubleshooting Table 11 provides fault isolation and troubleshooting guidelines. When aproblem is reported,note the type of alarm generated (minor, major, or none) and any problems that may beobserved. Then check the LED indicators on the DHU and note any that are red, yellow, oroff.If aPort 1–6 OK/NOK LED indicator is any color but green, check the LED indicators onthe connected DEUs and/or DRUs. When the required information has been obtained, locatethe problem in Table 11, check out the suggested possible causes, and take corrective action asrequired.Table 11. Fault Isolation and Troubleshooting Alarm Type Minor LED Indicators DHU or DEU: UNIT - Yellow - All other LEDs are green Problem The DHU or DEU is overheating. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Air intake or exhaust openings to DHU orDEU chassis blocked.2. Ambient temperature > 50º C/122º F.3. Faulty fan.1. Remove cause of air-flow blockage.2. Reduce ambient temperature.3. Replace fan (see Subsection 5.5).Alarm Type Major LED Indicators DHU or DEU: UNIT - Red Problem The DHU or DEU detects an internal circuitry fault. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Faulty DHU or DEU. 1. Replace DHU or DEU.Alarm Type Major LED Indicators DHU or DEU: DRU: OK/NOK - Red or blinking Red - All other LEDs are green STATUS - Off Problem The DRU is not powered. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. DC power cable open.2. No power or insufficient power output fromac/dc power converter, DHU, or DEU.3. Faulty DRU.1. Test cable for continuity and repair or replace iffaulty.2. Check DC voltage level at the DRU (see Subsection5.4.3). Replace converter, DHU, or DEU (whicheverapplies) if voltage is not within 34 to 48 Vdc.3. Replace DRU.Alarm Type Major LED Indicators DHU or DEU: DRU: All LEDs are green STATUS - Red or blinking Red Problem The DRU is not receiving an optical signal from the DHU or DEU. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Faulty forward path optical link betweenDHU or DEU and DRU2. Faulty optical transmit port at DHU orDEU; or faulty optical receive port at DRU.1. Test optical link and repair or replace if faulty(see Subsection 5.4.2).2. Test optical ports. Replace DHU, DEU, or DRUif port is faulty (see Subsection 5.4.1).(continued)

ADCP-75-110 • Issue 2B • July 2001 Page 48 ©2001, ADC Telecommunications, Inc.Table 11. Fault Isolation and Troubleshooting, continued Alarm Type Major LED Indicators DHU or DEU: DRU: OK/NOK - Red or blinking Red - All other LEDs are green STATUS - Green Problem The DHU or DEU is not receiving an optical signal from the DRU. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Faulty reverse path optical link betweenDHU or DEU and DRU.2. Faulty optical receive port at DHU or DEU;or faulty optical transmit port at DRU.1. Test optical link and repair or replace if faulty(see Subsection 5.4.2).2. Test optical ports. Replace DHU, DEU, or DRUif port is faulty (see Subsection 5.4.1).Alarm Type Major LED Indicators DHU or DEU: DRU: OK/NOK - Red or blinking Red - All other LEDs are green STATUS - Red or Blinking Red Problem The DHU or DEU is not receiving an optical signal from the DRU and the DRU is not receiving an optical signal from the DHU or DEU; or the DRU detects an internal circuitry fault. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Faulty forward and reverse path optical linkbetween the DHU or DEU and DRU2. Faulty DRU.1. Test optical link and repair or replace if faulty(see Subsection 5.4.2)2. Replace DRU.Alarm Type Major LED Indicators DHU or DEU: Supported DEU: All LEDs are green HOST PORT - Red or blinking Red - All other LEDs are green Problem The supported DEU is not receiving an optical signal from the DHU or DEU. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Faulty forward path optical link betweenDEU or DHU and supported DEU.2. Faulty optical transmit port at DHU or DEU orfaulty optical receive port at supported DEU.1. Test optical link and repair or replace if faulty(see and 5.4.2).2. Test optical ports. Replace DHU, DEU, or sup-ported DEU if port is faulty (see Subsection 5.4.1).Alarm Type Major LED Indicators DHU or DEU: Supported DEU: OK/NOK - Red or blinking Red - All other LEDs are green All LEDs are green Problem The DHU or DEU is not receiving an optical signal from the supported DEU. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Faulty reverse path optical link betweenDEU or DHU and supported DEU.2. Faulty optical receive port at DHU or DEU orfaulty optical transmit port at supported DEU.1. Test optical link and repair or replace if faulty(see and 5.4.2).2. Test optical ports. Replace DHU, DEU, or sup-ported DEU if port is faulty (see Subsection 5.4.1).Alarm Type Major LED Indicators DHU or DEU: Supported DEU: OK/NOK - Red or blinking Red - All other LEDs are green HOST PORT - Red or blinking Red - All other LEDs are green Problem The DHU or DEU is not receiving an optical signal from the supported DEU and the supported DEU is not receiving an optical signal from the DHU or DEU. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Faulty forward and reverse path optical linkbetween DEU or DHU and supported DEU. 1. Test optical link and repair or replace if faulty(see and 5.4.2).(continued)

ADCP-75-110 • Issue 2B • July 2001 Page 49 ©2001, ADC Telecommunications, Inc.Table 11. Fault Isolation and Troubleshooting, continued Alarm Type None LED Indicators DHU, DEU, and DRU: All LEDs are green. Problem Loss of phone service from one DRU. Service normal at all other DRUs. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. DRU antenna cable disconnected.2. DRU antenna obstructed or misdirected.3. DRU antenna faulty.4. DRU faulty.1. Re-connect DRU antenna cable to DRU.2. Remove antenna obstruction or re-orient antenna.3. Replace antenna.4. Replace DRU.Alarm Type None LED Indicators DHU, DEU, and DRU: All LEDs are green Problem Loss of phone service from all DRUs. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Faulty coaxial connection between DHUand the LIU or RIU.2. Faulty coaxial connection between LIU andthe BTS or RIU and donor antenna.3. Faulty LIU or RIU.4. Faulty DHU5. Fault with cellular network or equipment.1. Check forward path signals at the DHU. Checkreverse path signals at the LIU or RIU.2. Check forward path signals at the LIU or RIU.Check reverse path signals at the BTS or antenna.3. Adjust or replace LIU or RIU.4. Replace DHU.5. Contact cell service provider and verify thatcellular network and equipment is operational.Alarm Type None LED Indicators DHU, DEU, and DRU: All LEDs indicate normal operation. Problem Calls may be originated and terminated but service is noisy. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Some electrical device in the immediatevicinity is creating interference. 1. Try turning off each device that may be causinginterference and see if problem corrects itself.Alarm Type None LED Indicators DHU, DEU, and DRU: All LEDs indicate normal operation. Problem Sudden high rate of blocked calls (delay dial tone). POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Too many users for the number of channelsavailable.2. Faulty DHU, DEU, or DRU.1. Wait afew minutes and try dialing again. Upgradeservice if additional channels are required.2. Replace defective unit.Alarm Type None LED Indicators DHU: OVERDRIVE - Red Problem Forward path RF input level too high. POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS 1. Incorrect attenuation in forward path RFcoaxial link. 1. Adjust attenuation at RIU or LIU.

ADCP-75-110 • Issue 2B • July 2001 Page 50 ©2001, ADC Telecommunications, Inc.5.4 Test Procedures 5.4.1 Optical Loopback Test Procedure Afaulty optical port, abreak in an optical fiber, or a fault in an optical connector will interruptcommunications between fiber linked components. Use the following procedure to determineif afault exists with an optical port or with an optical link:Danger:This equipment uses aClass 1Laser according to FDA/CDRH rules. Laser radiationcan seriously damage the retina of the eye. Do not look into the ends of any optical fiber. Donot look directly into the optical transceiver of any digital unit or exposure to laser radiationmay result. An optical power meter should be used to verify active fibers. Aprotective cap orhood MUST be immediately placed over any radiating transceiver or optical fiber connectorto avoid the potential of dangerous amounts of radiation exposure. This practice also preventsdirt particles from entering the transceiver or connector.1. Put on the IR filtering safety glasses.2. At the DHU or supporting DEU, place the PORT ON/OFF switch for the fiber port orlink to be tested in the OFF position (press O).3. Disconnect the optical connectors at the DHU or supporting DEU optical port (near endof fiber) and place adust cap over each connector.4. Plug aloopback into the optical port to be tested as shown in Figure 24.16767-AOPTICAL LOOPBACKCONNECTION DETAILPORT 1 OPTICALTRANSCEIVEROPTICALLOOPBACKFigure 24. DHU/DEU Loopback Test 5. At the DHU or supporting DEU, place the PORT ON/OFF switch in the ON position(press I).6. The PORT OK/NOK LED will turn either red or green. If the LED turns red, the opticalport is faulty. Replace the DHU or DEU and then recheck system operation. If the LEDturns green, the optical port is good. Proceed to step 7to continue the test procedure.

ADCP-75-110 • Issue 2B • July 2001 Page 51 ©2001, ADC Telecommunications, Inc.7. Place the PORT ON/OFF switch in the OFF position (press O).8. Disconnect the loopback from the DHU or supporting DEU and reconnect the opticalfiber connectors (remove dust caps) to the optical port.9. Disconnect the optical connectors at the DRU optical port or remote DEU host port (farend of fiber).10. Connect the loopback (requires LC adapters) to the optical fiber connectors.16768-AOPTICALADAPTEROPTICALLOOPBACKOPTICALCONNECTORFigure 25. Optical Fiber Loopback Test 11. Insert adust plug into the DRU optical port or remote DEU host port.12. At the DHU or supporting DEU, place the PORT ON/OFF switch in the ON position(press I).13. The PORT OK/NOK LED will turn either red or green. If the LED turns red, one of theoptical fibers is faulty. Refer to Subsection 5.4.2 to isolate which fiber is at fault. If theLED turns green, the optical fibers are good. Proceed to step 14 to finish the testprocedure.14. At the DHU or supporting DEU, place the PORT ON/OFF switch in the OFF position(press O).15. Disconnect the loopback and the optical adapters from the optical fiber connectors.16. Place adust cap over the connector for each optical fiber17. Remove the dust plug from the DRU optical port or remote DEU host port.18. Plug the loopback into the DRU optical port or DEU host port.19. If testing aDRU that is powered by the DHU or by a supporting DEU, place the PORTON/OFF switch in the ON position (press I).20. The DRU STATUS LED or DEU HOST LED will turn either red or green. If the LEDturns red, the optical port is faulty and the unit must be replaced. If the LED turns green,the optical port is good.

ADCP-75-110 • Issue 2B • July 2001 Page 52 ©2001, ADC Telecommunications, Inc.16769-AOPTICAL LOOPBACKCONNECTION DETAILOPTICALTRANSCEIVEROPTICALLOOPBACKFigure 26. DRU Loopback Test 21. At the DHU or supporting DEU, place the PORT ON/OFF switch in the OFF position(press O).22. Remove the loopback and reconnect the optical fiber connectors (remove dust caps) tothe DRU optical port or remote DEU host port.23. At the DHU or supporting DEU, place the PORT ON/OFF switch in the ON position(press I).24. Verify that the PORT OK/NOK LED turns green.5.4.2 Optical Loss Test Procedure Abreak in an optical fiber or a fault with the optical connector will interrupt communicationsbetween linked components. Use the following procedure to isolate aproblem with an opticalfiber or optical connector:Danger:This equipment uses aClass 1Laser according to FDA/CDRH rules. Laser radiationcan seriously damage the retina of the eye. Do not look into the ends of any optical fiber. Donot look directly into the optical transceiver of any digital unit or exposure to laser radiationmay result. An optical power meter should be used to verify active fibers. Aprotective cap orhood MUST be immediately placed over any radiating transceiver or optical fiber connectorto avoid the potential of dangerous amounts of radiation exposure. This practice also preventsdirt particles from entering the transceiver or connector.1. Put on the IR filtering safety glasses.2. At the DHU or supporting DEU, place the PORT ON/OFF switch for the fiber link to betested in the OFF position (press O)if not already off.3. Disconnect the optical connectors at the DHU or supporting DEU and at thecorresponding DRU or remote DEU.

ADCP-75-110 • Issue 2B • July 2001 Page 53 ©2001, ADC Telecommunications, Inc.4. Inspect the optical connectors. Verify that each connector is clean and that no scratchesor imperfections are visible on the fiber end. Clean and polish the optical connector ifnecessary.5. Connect a laser light source to one end of the first optical fiber and an optical powermeter to the other end.6. Verify that the power loss is within specifications (8 dB loss) for the length of the fiberinstalled. If the power loss is not within specifications, repair or replace the optical fiberand/or connector per local practice.7. Repeat steps 5and 6for the second optical fiber.8. Reconnect the optical connectors at the DHU or supporting DEU and the correspondingDRU or remote DEU.9. At the DHU or supporting DEU, place the PORT ON/OFF switch for the fiber link thatwas tested in the ON position (press I).5.4.3 DC Power Test Procedure The DRU is powered by 34–48 Vdc power which is supplied through the RJ-45 connector.Power to the DRU may be supplied by the DHU, DEU, or by a 120 Vac to 48 Vdc powerconverter (available separately as an accessory item) plugged into a properly grounded 120Vac outlet. Use the following procedure to test the DC power cable:1. Disconnect the DC power cable from the DRU.2. Connect the RJ-45 circuit access tool to the DRU as shown in Figure 27.3. Connect the DC power cable to the RJ-45 circuit access tool (see Figure 27).POWERPORTPOWERCONNECTORRJ-45 CIRCUIT ACCESS TOOL16205-AFigure 27. Connect RJ-45 Circuit Access Tool

ADCP-75-110 • Issue 2B • July 2001 Page 54 ©2001, ADC Telecommunications, Inc.4. Using aDC voltmeter, verify that the DC voltage level is between 34 and 48 Vdcbetween any set of positive and negative (+/-) terminals at the RJ-45 circuit access toolas shown in Figure 28. Due to source current limiting at the DHU or DEU, low voltagecan mean excess wire resistance, low source voltage, or excess remote current.Warning:The DRU uses 48 Vdc power. To avoid electric shock or burns, use extreme carewhen working near exposed terminals or uninsulated cables. Be careful not to touch exposedterminals or to cause ashort between terminals when checking voltage levels.16206-ATEST POINTS(+) (-) TEST POINTS(+) (-)5 67 8 1 23 4Figure 28. RJ-45 Circuit Access Tool Pin/Wire Designations 5. Disconnect RJ-45 circuit access tool from the DRU.6. Use the DC voltmeter to check for open pin connections by checking for voltage betweenthe +/– pairs on the RJ-45 circuit access tool (see Figure 28).7. Disconnect the DC power cable from the RJ-45 circuit access tool.8. Re-connect DC power cable to the DRU.5.5 DHU or DEU Fan Replacement Procedure It is recommended that the fans (catalog #DGVI-100000FAN) be replaced every five years.Replacement of afan requires that the DHU or DEU be turned off for ashort period of time. Thiswill drop all existing calls, cause atemporary loss of service, and generate amajor alarm. Use thefollowing procedure to replace the cooling fans within the DHU or the DEU:1. Before touching the DHU or DEU or handling afan, slip on an Electro-Static Discharge(ESD) wrist strap and connect the ground wire to an earth ground source. Wear the ESDwrist strap while completing each section of the fan installation procedure.Warning:Electronic components can be damaged by static electrical discharge. To preventESD damage, always wear an ESD wrist strap when working on the DHU or DEU and whenhandling electronic components.2. Observe the fans (located on right side of enclosure) to determine which fan requiresreplacement. The faulty fan may be stopped, running at areduced speed, or the fanbearing may be noisy.Note:Because the Mean Time Between Failures (MBTF) is the same for both fans, it may bemore efficient to replace both fans at the same time.3. Notify the NOC or alarm monitoring system operator that the system is going offline.

ADCP-75-110 • Issue 2B • July 2001 Page 55 ©2001, ADC Telecommunications, Inc.4. Place the DHU or DEU AC power On/Off switch (see Figure 3 or Figure 7) in the OFFposition (press O).5. Remove the six flat-head screws (requires TORX screwdriver with T15 bit) that secure thefan/grill assembly to the side of the enclosure as shown in Figure 29 and save for reuse.6. Carefully withdraw the fan/grill assembly from the enclosure until the wiring harness isexposed and the connectors are accessible.7. Lift the small latch on each wiring harness connector (see Figure 29) and carefullyunplug each connector from the circuit board connector.16172-BFigure 29. Fan/Grill Assembly Removal 8. Remove the four plastic rivets that secure the faulty fan to the grill by pushing outwardon rivet center post until the rivet can be withdrawn from the grill as shown in Figure 30.9. Remove the faulty fan(s) from the grill and then locate the replacement fan(s).10. Use the rivets removed in step 8to secure the replacement fan to the grill. Orient the fan so thewiring harness is on the top and the arrow on the fan housing faces into the enclosure.11. Connect the two wiring harness connectors to the circuit board connectors.12. Secure the fan/grill assembly to the side of the enclosure (see Figure 29) using the sixflat-head screws removed in step 5.

ADCP-75-110 • Issue 2B • July 2001 Page 56 ©2001, ADC Telecommunications, Inc.16173-BFigure 30. Removing Fan From Grill 13. Place the DHU or DEU AC power On/Off switch in the ON position (press I).14. Verify that the fans run properly following power up.15. Notify the NOC or alarm monitoring system operator that the system is going backonline.

ADCP-75-110 • Issue 2B • July 2001 Page 57 ©2001, ADC Telecommunications, Inc.6 GENERAL INFORMATION 6.1 Warranty/Software The Product and Software warranty policy and warranty period for all ADC products ispublished in ADC’s Warranty/Software Handbook. Contact the Broadband ConnectionsGroup (BCG) Technical Assistance Center at 1-800-366-3891, extension 63475 (in U.S.A. orCanada) or 952-946-3000 (outside U.S.A. and Canada) for warranty or software informationor for a copy of the Warranty/Software Handbook.6.2 Software Service Agreement ADC software service agreements for some ADC Products are available at anominal fee. Contactthe BCG Technical Assistance Center at 1-800-366-3891, extension 63475 (in U.S.A. or Canada)or 952-946-3000 (outside U.S.A. and Canada) for software service agreement information.6.3 Repair/Exchange Policy All repairs of ADC Products must be done by ADC or an authorized representative. Anyattempt to repair or modify ADC Products without authorization from ADC voids thewarranty.If amalfunction cannot be resolved by the normal troubleshooting procedures, contact BCGTechnical Assistance Center at 1-800-366-3891, extension 63475 (in U.S.A. or Canada) or952-946-3000 (outside U.S.A. and Canada). A telephone consultation can sometimes resolve aproblem without the need to repair or replace the ADC Product.If, during atelephone consultation, ADC determines the ADC Product needs repair, ADC willauthorize the return of the affected Product for repair and provide aReturn MaterialAuthorization number and complete shipping instructions. If time is critical, ADC can arrangeto ship the replacement Product immediately. In all cases, the defective Product must becarefully packed and returned to ADC.6.4 Repair Charges If the defect and the necessary repairs are covered by the warranty, and the applicable warrantyperiod has not expired, the Buyer’s only payment obligation is to pay the shipping cost toreturn the defective Product. ADC will repair or replace the Product at no charge and pay thereturn shipping charges.Otherwise, ADC will charge apercentage of the current Customer Product price for the repairor NTF (No Trouble Found). If an advance replacement is requested, the full price of a newunit will be charged initially. Upon receipt of the defective Product, ADC will credit Buyerwith 20 percent of full price charged for any Product to be Out-of-Warranty. Products must bereturned within (30) days to be eligible for any advance replacement credit. If repairsnecessitate avisit by an ADC representative, ADC will charge the current price of a field visitplus round trip transportation charges from Minneapolis to the Buyer’s site.

ADCP-75-110 • Issue 2B • July 2001 Page 58 ©2001, ADC Telecommunications, Inc.6.5 Replacement/Spare Products Replacement parts, including, but not limited to, button caps and lenses, lamps, fuses, andpatch cords, are available from ADC on a special order basis. Contact BCG TechnicalAssistance Center at 1-800-366-3891, extension 63475 (in U.S.A. or Canada) or 952-946-3475 (outside U.S.A. and Canada) for additional information.Spare Products and accessories can be purchased from ADC. Contact Sales Administration at1-800-366-3891, extension 63000 (in U.S.A. or Canada) or 952-946-3000 (outside U.S.A. andCanada) for aprice quote and to place your order.6.6 Returned Material Contact the ADC Product Return Department at 1-800-366-3891, extension 63748 (in U.S.A.or Canada) or 952-946-3748 (outside U.S.A. and Canada) to obtain aReturn MaterialAuthorization number prior to returning an ADC Product.All returned Products must have a Return Material Authorization (RMA) number clearlymarked on the outside of the package. The Return Material Authorization number is valid for90 days from authorization.6.7 Customer Information and Assistance For customers wanting information on ADC products or help in using them, ADC offers theservices listed below. To obtain any of these services by telephone, first dial the central ADCtelephone 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 callsoriginating outside the U.S.A. or Canada, dial country code “1” then dial 952-946-3000.Sales AssistanceExtension 63000 • Quotation Proposals•Ordering and Delivery•General Product InformationSystems IntegrationExtension 63000 •Complete Solutions (from Concept to Installation)•Network Design and Integration Testing•System Turn-Up and Testing•Network Monitoring (Upstream or Downstream)•Power Monitoring and Remote Surveillance•Service/Maintenance Agreements•Systems OperationBCG Technical AssistanceCenterExtension 63475E-Mail: bcg_tac@adc.com•Technical Information•System/Network Configuration• Product Specification and Application• Training (Product-Specific)•Installation and Operation Assistance• Troubleshooting and RepairProduct Return DepartmentExtension 63748E-Mail: repair&return@adc.com•ADC Return Authorization number and instructionsmust be obtained before returning products.Product information may also be obtained using the ADC web site at www.adc.com or bywriting ADC Telecommunications, Inc., P.O. Box 1101, Minneapolis, MN 55440-1101,U.S.A.

ADCP-75-110 • Issue 2B • July 2001 Page 59 Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice. In noevent shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits and ADC furtherdisclaims any and all liability for indirect, incidental, special, consequential or other similar damages. This disclaimer ofliability applies to all products, publications and services during and after the warranty period.This publication may be verified at any time by contacting ADC’s Technical Assistance Center at 1-800-366-3891, extension63475 (in U.S.A. or Canada) or 952-946-3475 (outside U.S.A. and Canada), or by e-mail to bcg_tac@adc.com.©2001, ADC Telecommunications, Inc.All Rights ReservedPrinted in U.S.A.

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