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

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ADCP-75-110

Issue 2B

July 2001

Digivance™

800/1900 MHz Indoor Coverage Solution

Installation and Operation Manual

DRAFT

1175170 Rev A

FCC ID: F8I-DVICS1900-1

ADCP-75-110 • Issue 2B • July 2001

Page ii

2001, ADC Telecommunications, Inc.

Printed in the U.S.A.

REVISION HISTORY

ISSUE DATE REASON FOR CHANGE

Issue 104/2001 Original

Issue 206/2001 Changes in LED operation, new power cable maximum length recommendations, and update to

specifications table

Issue 2B 07/2001 Updated to cover 1900 MHz version of product

TRADEMARK 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 no

event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits and ADC further

disclaims any and all liability for indirect, incidental, special, consequential or other similar damages. This disclaimer of

liability 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, extension

63475 (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 55440-1101

In U.S.A. and Canada: 1-800-366-3891

Outside U.S.A. and Canada: (952) 938-8080

Fax: (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 the

basic 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 information

The procedures for installing the DEU and DRU are provided in other publications which are

referenced in the Related Publications section and at appropriate points within this manual.

RELATED PUBLICATIONS

Listed below are related manuals and their publication numbers. Copies of these publications

can 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 75-111

Provides adescription of the DEU and procedures for installing the DEU.

Digivance ICS Digital Remote Unit Installation Instructions 75-112

Provides adescription of the DRU and procedures for installing the DRU.

Digivance ICS Local Interface Unit User Manual 75-113

Provides adescription of the LIU and procedures for installing the LIU.

Digivance ICS Remote Interface Unit User Manual 75-114

Provides 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 hazards

to persons or equipment. An admonishment identifies apossible hazard and then explains

what may happen if the hazard is not avoided. The admonishments —in the form of Dangers,

Warnings, and Cautions —must be followed at all times. These warnings are flagged by use

of the triangular alert icon (seen below), and are listed in descending order of severity of injury

or damage and likelihood of occurrence.

Danger:Danger is used to indicate the presence of a hazard that will cause severe personal

injury, 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 severe

personal 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 minor

personal 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 when

installing or using electrically-powered equipment. To prevent electrical shock, never install

or use electrical equipment in awet location or during alightning storm.

Warning:The DRU is powered by 48 VDC power which is supplied over customer-provided

wiring. 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 radiation

can seriously damage the retina of the eye. Do not look into the ends of any optical fiber. Do

not look directly into the optical adapters of any digital unit or exposure to laser radiation

may result. An optical power meter should be used to verify active fibers. Aprotective cap or

hood MUST be immediately placed over any radiating adapter or optical fiber connector to

avoid the potential of dangerous amounts of radiation exposure. This practice also prevents

dirt particles from entering the adapter or connector

Danger:Do not look into the ends of any optical fiber. Exposure to laser radiation may result. Do

not 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. Fibers

may 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 for

Information Technology Equipment, Including Electrical Business Equipment.

FDA/CDRH:This equipment uses aClass 1LASER according to FDA/CDRH Rules. This

product 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:

AAmperes

AC Alternating Current

AGC Automatic Gain Control

AMPS Advanced Mobile Phone Service

CDMA Code Division Multiple Access

CDRH Center for Devices and Radiological Health

CUL Canadian Underwriters Laboratories

DAS Distributed Antenna System

DC Direct Current

DEU Digital Expansion Unit

DHU Digital Host Unit

DRU Digital Remote Unit

EIA Electronic Industries Association

ERP Effective Radiated Power

ESD Electrostatic Discharge

FCC Federal Communications Commission

FDA Food and Drug Administration

ICS Indoor Coverage Solution

LIU Local Interface Unit

NOC Network Operations Center

PWR Power

RIU Remote Interface Unit

RF Radio Frequency

RSSI Received Signal Strength Indication

RX Receive or Receiver

TDMA Time Division Multiple Access

TX Transmit or Transmitter

UL Underwriters Laboratories

UPS Uninterruptible Power Supply

VVolts

VAC Volts Alternating Current

VDC Volts Direct Current

WECO Western Electric Company

ADCP-75-110 • Issue 2B • July 2001

Page 1

1 SYSTEM FUNCTIONAL OVERVIEW AND UNIT DESCRIPTION

This section provides an overview of the Digivance Indoor Coverage Solution (ICS), a

description of the functions and features provided by the units that comprise the system, a

listing 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 coverage

for analog (AMPS) or digital (TDMA or CDMA) cellular phone systems operating within the

800 and 1900 MHz frequency bands. Large buildings typically interfere with the transmission

or reception of cellular phone system signals by imposing high attenuation losses on RF

signals. The Digivance ICS is designed to overcome the attenuation losses that make cellular

communications within buildings or structures difficult or impossible. With the Digivance

ICS, cellular phone RF signals can be distributed to the interior areas of any building or

structure 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. The

basic system consists of the Digital Host Unit (DHU), Digital Remote Unit (DRU), and when

additional capacity or longer fiber runs are required, the Digital Expansion Unit (DEU). In

addition, 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 Transceiver

Station (BTS).

1.1.2 Interface With BTS

The DHU interfaces, either locally or remotely, with the BTS. As referenced in this

publication, 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. An

interface device, such as the LIU, may be required to provide the proper input and output RF

signal 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 interface

device such as the RIU is required to provide the proper input and output RF signal levels

between the donor antenna and the DHU.

The DHU interfaces, as described in the preceding paragraph, with the BTS. In the forward

path, the DHU receives RF signals from the BTS. The DHU digitizes the RF signals and then

converts them to digital optical signals for transport to the DEUs and DRUs. In the reverse

path, the DHU receives digital optical signals from the DRUs and DEUs. The DHU converts

the optical signals back to the original RF signal format for transmission to the BTS.

ADCP-75-110 • Issue 2B • July 2001

Page 2

DRU

DEU

DHU

RIU

LIU

REMOTE

BTS

LOCAL

BTS

16417-A

Figure 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 signals

from each cellular phone. The DRU digitizes the RF signals and then converts them to digital

optical signals for transport to the DHU. In the forward path, the DRU receives digital optical

signals from the DHU. The DRU converts the optical signals back to the original RF signal

format for transmission to the cellular phones. Asmall antenna is connected to the DRU to

transmit and receive RF signals from the cellular phones.

ADCP-75-110 • Issue 2B • July 2001

Page 3

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 link

is used to transport the forward path optical signal. The other link is used to transport the

reverse path optical signal. Because the optical signal is digital, no adjustments to the optical

signal 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. If

50 micron cable is used, the optical link may be up to 750 meters in length. If 62.5 micron

core cable is used, the optical link may be up to 500 meters in length. The fiber optic links are

terminated 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 more

DRUs without having to install additional DHUs. Each DHU is equipped with six optical

ports. If more than six DRUs are required by the application, aDEU may be connected to one

of the optical ports at the DHU which expands that port to six ports. If still more optical ports

are required, then asecond DEU may be connected to the DHU or a second DEU may be

connected to the first DEU. The ability to cascade DEU’s in parallel or in series provides

unlimited flexibility. It is physically possible to connect an unlimited number DRUs to the

DHU through the installation of DEUs. The maximum number of DRUs that can connected to

the 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 is

supplied through astandard three-conductor AC power cord. The DRU is powered by 34–48

Vdc which is supplied by either the DHU, DEU, or an ac/dc wall-mount style converter. When

the DRU is powered by the DHU or DEU, the power is fed through acategory 3 or 5 cable

terminated 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 is

normal 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 acustomer

provided 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. The

DHU 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

• 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 system

17.2 INCHES

(437 mm)

3.5 INCHES

(89 mm)

11.4 INCHES

(290 mm)

15.3 INCHES

(389 mm)

FRONT PANEL

CABLE MANAGEMENT

TRAY

MOUNTING

BRACKET

(BOTH SIDES)

16418-A

Figure 2. Digital Host Unit

1.2.1 Primary Components

The DHU consists of two electronic circuit board assemblies, apower supply assembly, and a

fan assembly that are mounted within apowder-coated sheet metal enclosure. The metal

enclosure provides amounting point for the electronic assemblies, serves as aheat sink, and

controls RF emissions. Except for the fan units, the electronic circuit board assemblies are not

user replaceable. The DHU is designed for use within anon-condensing indoor environment

such as inside awiring closet or cabinet. All controls, connectors, and indicators are mounted

on the DHU front panel for convenient access. Cable management functions for the power and

fiber optic cables are provided by a cable management tray that extends outward from the

DHU front panel.

1.2.2 Mounting

The DHU may be used in both rack-mount and wall-mount applications. For rack mount

applications, apair of reversible mounting brackets is provided that allow the DHU to be

mounted 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 tray

extends 3.9 inches (99 mm) beyond the front panel. For wall-mount applications, apair of

holes is provided in the cable management tray which allow the DHU to be mounted on any

flat vertical surface. The DHU should be oriented with the front panel facing upward when

wall-mounted. Fasteners are provided for rack-mount applications.

ADCP-75-110 • Issue 2B • July 2001

Page 5

1.2.3 Fault Detection and Alarm Reporting

The DHU is designed to detect internal circuitry faults and optical port faults. Various front

panel Light Emitting Diode (LED) indicators turn from green to red or yellow if afault is

detected or an optical input is lost. Aset of alarm contacts (normally open and normally

closed) are also provided for reporting an alarm to an external alarm system when afault is

detected. 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 N

female connectors. One connector is used for coaxial cable connection of the forward path RF

signal. The other connector is used for coaxial cable connection of the reverse path RF signal. In

most installations, the DHU will not connect directly to the BTS but will be connected to an

interface device such as the RIU or the LIU. Additional information concerning the DHU 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).

The DHU requires acomposite forward path RF signal level of –20 dBm or lower. An

overdrive limiter protects the system against excessive inputs but does not function during

normal 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 optical

and electrical interface connection includes astatus LED, asmall form factor LC type optical

transceiver, an RJ-45 DC power jack, and aport enable/disable switch. An optical port may 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 the corresponding port

enable/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 astandard

three-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 front

panel. 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 right

sides of the DHU for air intake and exhaust. An alarm is provided that indicates if ahigh

temperature 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 that

are provided on the DHU front panel. The DHU user interface points are indicated in Figure 3

and described in Table 1.

ADCP-75-110 • Issue 2B • July 2001

Page 6

(1) AC POWER CORD

CONNECTOR

(2) AC POWER

ON/OFF SWITCH (3) OPTICAL PORT

LED INDICATOR

(6 PLACES)

(4) OPT/ELEC PORT

ENABLE/DISABLE

SWITCH (6 PLACES)

(5) ELECTRICAL PORT

DC POWER JACK

(6 PLACES)

(6) OPTICAL PORT

OPTICAL ADAPTERS

TX-LEFT - RX-RIGHT

(6 PLACES)

(7) UNIT LED

INDICATOR (10) RF INPUT

CONNECTOR

(8) OVERDRIVE

LED

INDICATOR

(9) ALARM

TERMINAL

STRIP

(11) RF OUTPUT

CONNECTOR

16419-A

NOTE: SHOWN WITHOUT

CABLE MANAGEMENT TRAY

Figure 3. Digital Host Unit User Interface

Table 1. Digital Host Unit User Interface

REF

No. USER INTERFACE

DESIGNATION

DEVICE FUNCTIONAL

DESCRIPTION

1POWER 3-wire AC power

cord connector Used for connecting the AC power cord.

2I/O I/O rocker switch/

circuit breaker Provides AC power On/Off control and

AC power over current protection.

3OK/NOK (Ports 1–6) Multi-colored LED

(Red/Green/Yellow) Indicates if the DRU or remote DEU connected

to the optical port is normal or faulty or if the

reverse path optical input from the DRU or

remote DEU is normal or lost. (see Note)

4ON/OFF (Ports 1–6) I/O rocker switch Enables or disables corresponding

electrical and optical ports.

5DC PWR (Ports 1–6) RJ-45 jack (female) Used for connecting aDRU cat 3or 5power

cable to the designated DC power jack.

6FIBER (Ports 1–6) Small form factor

LC-type optical

transceiver

Used for connecting each DEU or DRU

forward path and reverse path optical link

to 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 input

power is overdriving the DHU digitizing

circuitry. (see Note)

9MAJOR MINOR Screw-type terminal

connector

(14–26 AWG)

Used for connecting an external alarm

system to the DHU. Includes normally open

(NO), normally closed (NC), and common

(COM) wiring connections.

10 RF IN N-type female RF

coaxial connector Used for connecting the forward path RF

coaxial cable to the DHU.

11 RF OUT N-type female RF

coaxial connector Used for connecting the reverse path RF

coaxial cable to the DHU.

Note: Adetailed description of LED operation is provided in Section 4.

ADCP-75-110 • Issue 2B • July 2001

Page 7

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 link

FRONT PANEL

MOUNTING FOOT

(EACH CORNER)

7.0 INCHES

(178 mm)

7.3 INCHES

(185 mm)

2.1 INCHES

(53 mm)

16420-A

Figure 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 electronic

assembly, serves as aheat sink, and controls RF emissions. The electronic circuit board

assembly is not user replaceable. The DRU is designed for use within anon-condensing

indoor environment such as inside abuilding. All controls, connectors, and indicators (except

the 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 flat

horizontal or vertical surface. Atypical location for mounting the DRU would be above

ceiling tiles where the optical fiber and power cables can be concealed or on a wall. Slots are

provided in the mounting feet for securing the DRU to the mounting surface.

ADCP-75-110 • Issue 2B • July 2001

Page 8

1.3.3 Fault Detection

The DRU is designed to detect internal circuitry faults or loss of system inputs. A front panel

LED indicator turns from green to red when afault condition is detected or when the optical

input is lost. The DRU sends the fault information to the DHU or DEU over the fiber optic

link. Acorresponding port LED at the DHU or DEU turns from green to red when the DRU

reports afault.

1.3.4 RF Signal Interface

The RF signal interface between the DRU and the cellular users is provided through an

external antenna connected to afemale SMA connector. The antenna must be ordered

separately. Several types of antennas with various RF propagations are available. Non-ADC

antennas 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 a

point for connecting the optical link cables. Depending on the application requirements, the

optical 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 aDC

power cable. 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

power converter (available separately as an accessory item) plugged into a properly grounded

120 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, a

category 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 provide

clearance under the unit so that air can enter the DRU enclosure from the bottom and exit through

the 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 one

surface 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 DRU

front and rear panels. The DRU user interface points are indicated in Figure 5 and described in

Table 2.

ADCP-75-110 • Issue 2B • July 2001

Page 9

16421-A

REAR VIEWFRONT VIEW

(4) ANTENNA CONNECTOR

(1) STATUS LED

(2) 48 VDC POWER

CONNECTOR (3) FIBER LINK

OPTICAL ADAPTERS

TX-LEFT - RX-RIGHT

Figure 5. Digital Remote Unit User Interface

Table 2. Digital Remote Unit User Interface

REF

No. USER INTERFACE

DESIGNATION

DEVICE FUNCTIONAL

DESCRIPTION

1STATUS Multi-colored LED

(Red/Green/Yellow) Indicates if the status of the DRU is

normal or faulty or if the forward path

optical input is normal or lost. (see Note)

2 48 VDC RJ-45 jack (female) Used for connecting a DC power cable.

3FIBER

TX RX Small form factor

LC-type optical

transceiver

Used for connecting the forward path and

reverse path optical links.

4 – SMA-type coaxial

connector (female) Used for connecting the antenna coaxial

cable 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 the

Digivance 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

FRONT PANEL

CABLE MANAGEMENT

TRAY

MOUNTING

BRACKET

(BOTH SIDES)

16422-A

3.5 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 are

mounted within apowder-coated sheet metal enclosure. The metal enclosure provides a

mounting point for the electronic assemblies and serves as aheat sink. Except for the fan

units, the electronic circuit board assemblies are not user replaceable. The DEU is designed for

use within anon-condensing indoor environment such as inside awiring closet or cabinet. All

controls, connectors, and indicators are mounted on the DEU front panel for convenient

access. Cable management functions for the power and fiber optic cables are provided by a

cable 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 mount

applications, apair of reversible mounting brackets is provided that allow the DEU to be

mounted 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 tray

extends 3.9 inches (99 mm) beyond the front panel. For wall-mount applications, apair of

holes is provided in the cable management tray which allow the DEU to be mounted on any

flat vertical surface. The DEU should be oriented with the front panel facing upward when

wall-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 front

panel Light Emitting Diode (LED) indicators turn from green to red or yellow when afault is

detected or when an optical input is lost. The DEU transports the fault information to the DHU

or supporting DEU over the fiber optic link. Acorresponding port LED at the DHU or DEU

turns from green to red when the DEU reports afault.

ADCP-75-110 • Issue 2B • July 2001

Page 11

1.4.4 Optical and Electrical Interface Connections

Operation of the DRUs and DEUs is supported by six optical and six electrical ports. Each

optical and electrical interface connection includes astatus LED, asmall form factor LC type

optical transceiver, an RJ-45 DC power jack, and a port enable/disable switch. An optical port

may be connected to aDRU, aDEU, or not used. An electrical port may be connected to a

DRU or not used. Unused ports require no connections at all and are disabled via the

corresponding port enable/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. The DEU also provides one optical port

designated 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 astandard

three-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 front

panel. 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 sheet

metal housing. Aminimum of 3 inches (76 mm) of clearance space must be provided on both

the left and right sides of the DEU for air intake and exhaust. An alarm is provided that

indicates 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 are

provided on the DEU front panel. The DEU user interface points are indicated in Figure 7 and

described in Table 3.

16423-A

(2) AC POWER

ON/OFF SWITCH (3) OPTICAL PORT

LED INDICATOR

(6 PLACES)

(4) OPT/ELEC PORT

ENABLE/DISABLE

SWITCH (6 PLACES)

(8) UNIT LED

INDICATOR

(1) AC POWER CORD

CONNECTOR (5) ELECTRICAL PORT

DC POWER JACK

(6 PLACES)

(6) OPTICAL PORT

OPTICAL ADAPTERS

TX-LEFT - RX-RIGHT

(6 PLACES)

(9) HOST PORT

LED

INDICATOR

(7) HOST PORT

OPTICAL ADAPTERS

TX-LEFT - RX-RIGHT

NOTE: SHOWN WITHOUT

CABLE MANAGEMENT TRAY

Figure 7. Digital Expansion Unit User Interface

ADCP-75-110 • Issue 2B • July 2001

Page 12

Table 3. Digital Expansion Unit User Interface

REF

No. USER INTERFACE

DESIGNATION

DEVICE FUNCTIONAL

DESCRIPTION

1POWER 3-wire AC power

cord connector Used for connecting the AC power cord.

2I/O I/O rocker switch/

circuit breaker Provides AC power On/Off control and

AC power over current protection.

3OK/NOK (Ports 1–6) Multi-colored LED

(Red/Green/Yellow) Indicates if the DRU or remote DEU

connected to the optical port is normal or

faulty or if the reverse path optical input

from the DRU or remote DEU is normal

or lost. (see Note)

4ON/OFF (Ports 1–6) I/O rocker switch Enables or disables corresponding

electrical and optical ports.

5DC PWR (Ports 1–6) RJ-45 jack (female) Used for connecting aDRU cat 3or 5power

cable to the designated DC power jack.

6FIBER (Ports 1–6) Small form factor

LC-type optical

transceiver

Used for connecting each DRU or remote

DEU forward path and reverse path optical

link to the designated optical port.

7HOST PORT Small form factor

LC-type optical

transceiver

Used for connecting the DHU or supporting

DEU 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 input

from the DHU or supporting DEU is

normal 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 and

control 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 optical

interfaces or that extends an optical run.

Digital Host Unit The unit that converts and provides the digital source signal to all DEUs

and DRUs and converts summed inputs from DEUs and DRUs.

(continued)

ADCP-75-110 • Issue 2B • July 2001

Page 13

Table 4. Terms and Definitions, continued

TERM DEFINITION

Digital Remote Unit The unit that interfaces the in-building user to the Digivance optical

transport.

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 high

temperature) occurs.

Minor Alarm The alarm condition that applies when a high temperature condition

occurs. (> 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 are

detected.

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 normal

state. This period includes time for circuit stabilization and

initialization 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 after

five minute warm-up period.

Table 5. System Specifications

PARAMETER SPECIFICATION REMARKS

Optical – All Units

Fiber type Multimode 50 or 62.5 micron core Two fibers per link

Maximum Fiber Length 500 m (1,641 ft)

750 m (2461 ft) With 62.5 micron core

With 50 micron core

Optical Output Power –10 to +4 dBm

Optical Wavelength 850 nm

Environmental

Operating Temperature 0º to 50º C (32º to 122º F)

Storage Temperature –30º to +70º C (–22 to 158º F)

Humidity No condensation

Weather resistance Indoor installation only

(continued)

ADCP-75-110 • Issue 2B • July 2001

Page 14

Table 5. System Specifications, continued

PARAMETER SPECIFICATION REMARKS

RF Forward Path

System Bandwidth 25 MHz

800 MHz frequency

range (A and B band) US Cellular 869 to 894 MHz

1900 MHz freq. ranges

AD band

DBE band

BEF band

EFC band

US PCS

1925 to 1950 MHz

1945 to 1970 MHz

1950 to 1975 MHz

1965 to 1990 MHz

Output power +13 dBm

± 1 dB at midpoint of passband Maximum composite power

Gain +33 ± 1.5 dB at band center At room temperature

Gain variation < 6 dB

< 1.5 dB variation

Over frequency, temperature, and

unit to unit.

Per 1.25 MHz CDMA channel

OIP3 >+35 dBm At +13 dBm composite output

CDMA ACPR1 < –45 dBc

Spurious Output < –35 dBm

DHU RF input signal

level –20 dBm maximum composite Provides a nominal +13 dBm RF

output signal at the DRU

RF Reverse Path

System bandwidth 25 MHz

800 MHz frequency

range (A and B band) US Cellular 824 to 849 MHz

1900 MHz freq. ranges

AD band

DBE band

BEF band

EFC band

US PCS

1845 to 1870 MHz

1865 to 1890 MHz

1870 to 1895 MHz

1885 to 1910 MHz

Gain +10 dB

± 1 dB at midpoint of passband

Gain Variation < 6 dB

< 1.5 dB variation

Over frequency, temperature, and

unit to unit.

Per 1.25 MHz CDMA channel

Automatic Gain

Limiting Prevents A/D saturation with

large inputs. Disabled for

composite RF input < –40 dBm

Noise Figure < 8 dB typical midband 8 + 10 log N(N = # of remotes) See

Note at end of table

DHU RF output signal

level –30 dBm typical With a–40 dBm composite maximum

input signal at the DRU

(continued)

ADCP-75-110 • Issue 2B • July 2001

Page 15

Table 5. System Specifications, continued

PARAMETER SPECIFICATION REMARKS

Physical/Electrical – DHU

Weight 18.5 lbs (8.4 kg)

RF connection Type N Female

Alarm connection Screw terminals (14–26 AWG) NO, NC, and COM

Optical connection Duplex LC transceiver

DC pwr output connection RJ-45 Female

Power input 120/240 Vac, 50–60 Hz

AC power connection IEC 320 Male

Power consumption 250 W Maximum

Current rating 85–250 Vac, 2Amp input

Physical/Electrical – DEU

Weight 18.5 lbs (8.4 kg)

Optical connection Duplex LC transceiver

DC pwr output connection RJ-45 Female

Power input 120/240 Vac, 50–60 Hz

AC power connection IEC 320 Male

Power consumption 250 W Maximum

Current rating 85–250 Vac, 2Amp input

Physical/Electrical – DRU

Weight 1.5 lbs (708 g)

RF connection SMA Female

800 MHz antenna types Ceiling mount omni directional

70º directional panel

90º directional panel

Ceiling mount hallway

2.5 dBi gain

8dBi gain

7.5 dBi gain

4dBi gain

1900 MHz antenna types Ceiling mount omni directional

90º directional panel

Ceiling mount hallway

2.5 dBi gain

7.5 dBi gain

4dBi gain

Optical connection Duplex LC transceiver

DC pwr input connection RJ-45 Female

Power input 34 to 48 Vdc

DC power cable

maximum length (Cat-3

or -5 cable)

500 meters (1,641 ft) Any distance beyond 500 meters

requires alternate power sourcing

Power consumption 17 W Typical

Current rating 48 Vdc, 350 mA input

Note: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 useful

approximation.

ADCP-75-110 • Issue 2B • July 2001

Page 16

2 INSTALLATION PLANNING AND SYSTEM DESIGN

This section provides installation planning information and basic system design recommendations

for RF engineers that will be designing and installing an in-building coverage solution using the

Digivance ICS. System design and planning services are available from ADC if required. Refer to

Section 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 this

publication, the BTS could be either amicrocell or a cell site base station. With alocal

interface, ahard-wire connection is provided between the DHU and the BTS (microcell) using

coaxial cables. With aremote interface, an over-the-air connection is provided between the

DHU 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 RF

input and output signal levels at the DHU and BTS. The correct levels can be provided at the

BTS and DHU using the Local Interface Unit (LIU). The LIU is an accessory item that

provides adjustable gain or attenuation in both the RF forward and reverse path. The level of

the RF output signal from the BTS will vary depending on the type of BTS. Therefore, it will

generally 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 DHU

which is–20 dBm.When the level of the RF input signal at the DHU is –20 dBm, the level of

the 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 the

type of BTS. When the level of the reverse path (uplink) signal at the DRU is at the

recommended composite maximum of –40 dBm,the level of the RF output signal from the

DHU is –30 dBm.Therefore, it may be necessary to add some gain or attenuation to the

reverse path signal in order to achieve the required RF input signal level at the BTS. Ablock

diagram showing atypical local DHU to BTS interface is provided in Figure 8.

LOCAL

INTERFACE

UNIT

FORWARD

(DOWNLINK)

REVERSE

(UPLINK)

+13 dBm

(COMPOSITE

MAX)

-40 dBm

(COMPOSITE

MAX)

-20 dBm

(COMPOSITE

MAX)

-30 dBm

(COMPOSITE

MAX)

16424-A

DIGITAL

HOST

UNIT

OPTICAL LINK

DIGITAL

REMOTE

UNIT

DIRECTIONAL ANTENNA

TO/FROM HANDSETS

LOCAL BASE

TRANSCEIVER

STATION

(MICRO CELL)

T1 LINK

TO SWITCH

Figure 8. Local BTS Interface Block Diagram

ADCP-75-110 • Issue 2B • July 2001

Page 17

The LIU is rack or wall mountable and is powered by 120–240 Vac (50–60 Hz) power. Refer

to the Digivance Local Interface Unit User Manual (ADCP-75-113) for acomplete description

of 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 antenna

requires specific RF input and output signal levels at the DHU and antenna. The correct levels

at the DHU and antenna can be provided using the Remote Interface Unit (RIU). The RIU is

an accessory item that provides adjustable gain or attenuation in both the RF forward and

reverse paths. The RIU connects to adirectional antenna through aduplexer which provides

separate 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 level

of –20 dBm.When the level of the RF input signal at the DHU is –20 dBm, the level of the

RF 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 vary

depending on the distance from the BTS. When the level of the reverse path (uplink) signal at

the DRU is at the recommended composite maximum level of –40 dBm,the level of the RF

output signal from the DHU is –30 dBm.Therefore, it may be necessary to add gain or

attenuation to the reverse path signal in order to achieve the required output signal level at the

RIU antenna port. Ablock diagram showing atypical remote DHU to BTS interface is

provided in Figure 9.

The RIU is rack or wall mountable and is powered by 120–240 Vac (50–60 Hz) power. Refer

to the Digivance Remote Interface Unit User Manual (ADCP-75-114) for acomplete

description of the RIU.

DIRECTIONAL

ANTENNA TO/FROM

CELL SITE BTS

16425-A

REMOTE

INTERFACE

UNIT

FORWARD

(DOWNLINK)

REVERSE

(UPLINK) +13 dBm

(COMPOSITE

MAX)

-40 dBm

(COMPOSITE

MAX)-20 dBm

(COMPOSITE

MAX)

-30 dBm

(COMPOSITE

MAX)

DIGITAL

HOST

UNIT

OPTICAL LINK

DIGITAL

REMOTE

UNIT

DIRECTIONAL ANTENNA

TO/FROM HANDSETS

Figure 9. Remote BTS Interface Block Diagram

ADCP-75-110 • Issue 2B • July 2001

Page 18

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 and

US standard) are included with each unit for rack mount applications. Apair of reversible mounting

brackets is provided that allows the unit to be mounted in either a19-inch or 23-inch EIA or WECO

equipment 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 and

DEU occupy 3.5 inches (89 mm) of rack space. Make sure the mechanical loading of the rack will

be even to avoid ahazardous condition such as aseverely unbalanced rack. The rack should safely

support 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 cable

management tray that allows the unit to be mounted on any flat vertical surface. The mounting

holes are spaced 11-21/32 inches (296 mm) apart. Orient the DHU/DEU so the front panel

faces up when mounted. Appropriate fasteners for wall mounting must be provided by the

installer. It is recommended that abacker board such as 3/4-inch plywood be installed over the

mounting surface to provide asecure base for attaching the DHU or DEU.

Mount the DHU and DEU in anon-condensing indoor environment such as inside awiring

closet or within an environmentally controlled cabinet. All controls, connectors, and indicators

are mounted on the front panel. Route all cables to the front panel for connection. Use the

cable 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 rack

assembly because the operating ambient temperature of the rack environment might be greater

than room ambient. Provide aminimum clearance of 3 inches (76 mm) on both the left and

right sides of the unit for air intake and exhaust. Refer to Figure 2 for the DHU dimensions

and 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 integral

mounting feet that allow it to be fastened to any flat vertical or horizontal surface. Holes are

provided in the mounting feet for inserting fasteners. Appropriate fasteners for securing the

DRU 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 fiber

optic links to the DRU front panel for connection. Route the antenna coaxial cable to the DRU

rear panel for connection. Provide aminimum of 3 inches (76 mm) of clearance space on all

sides of the DRU (except the bottom) to ensure there is adequate air circulation for cooling. In

addition, at least one surface of the DRU installation area must be open to the interior of the

building. If aportable/flexible antenna will be installed, allow aminimum of 9 inches (229

mm) clearance along the surface with the antenna. Refer to Figure 4 for the DRU dimensions.

ADCP-75-110 • Issue 2B • July 2001

Page 19

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 a

standard three-conductor AC power cord. The 120 Vac power cord is provided with the unit

and is 98 inches (2.5 m) long. Both the DHU and the DEU have a current rating of 2.0 Amps

at 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 Power

Supply (UPS) system be used to provide back-up power to the DHU and DEU in the event of

an 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 panel

RJ-45 connector. Power to the DRU may be provided by the DHU, DEU, or by a 120 Vac to

48 Vdc power converter (available separately as an accessory item) plugged into a properly

grounded 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 the

installer. Use category 3or 5twisted pair cable as the power supply cable when the DRU is

meters.If the DRU will be located more than 500 meters from the DHU or DRU, the DRU must be

locally powered by a48 Vdc power converter. Route the power cable between the power source and

the 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 is

available as an accessory item. The converter is aUL Listed stand alone Limited Power

Supply (LPS) unit with arated output of 48 Vdc at 1.2 Amps.The converter is equipped with

a 6-foot (1.8 m) DC power cable which is terminated with an RJ-45 male connector. The

converter is powered by 120–240 Vac (50–60 Hz) power which is supplied though astandard

three-conductor AC power cord. The 120 Vac power cord is 6feet (1.8 m) long and is

provided with the converter.

15988-A

Figure 10. AC/DC Power Converter

ADCP-75-110 • Issue 2B • July 2001

Page 20

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 reverse

path optical signal. Either 50 or 62.5 micron core multi-mode fiber optic cable may be used

for the optical link. If 50 micron cable is used, the optical link may be up to 750 meters (2461

ft) 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 RX

TX RX TX RX TX RX TX RX

PORTS 1-6

PORTS

1-6

PORTS 1-6

FIBER PORT

HOST

PORT

FORWARD PATH

REVERSE PATH

FORWARD PATH

REVERSE PATH

FORWARD PATH

REVERSE PATH

DIGITAL

REMOTE

UNIT

DIGITAL

REMOTE

UNIT

DIGITAL

HOST

UNIT

DIGITAL

HOST

UNIT

DIGITAL EXPANSION UNIT

BASIC CONFIGURATION WITH DHU AND DRU

BASIC CONFIGURATION WITH DHU, DEU, AND DRU

END-TO-END OPTICAL CONNECTOR/CABLE ASSEMBLY DIAGRAM

Figure 11. Digivance ICS Optical Connections

ADCP-75-110 • Issue 2B • July 2001

Page 21

Whenever possible, use conduit or aguideway such as the FiberGuide system to route the optical

links between the DHU, the DEUs, and the DRUs. Avoid routing optical fibers through ladder type

cable racks or troughs that do not provide sufficient support to limit bending or prevent accidental

damage. Tie-wrapping is not recommended as ameans of securing fiber optic cables. Provide

sufficient 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 BTS

through coaxial cable connections. In alocal interface with the BTS, coaxial cables are

required 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 the

forward and reverse path coaxial cables. Use high performance, flexible, low loss 50-ohm

coaxial 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 more

DRUs without having to install additional DHUs. Each DHU is equipped with six optical

ports. If more than six DRUs are required by the application, aDEU may be connected to one

of the optical ports at the DHU which expands that port to six ports. If still more optical ports

are required, then asecond DEU may be connected to the DHU or a second DEU may be

connected to the first DEU. The ability to cascade DEU’s in parallel or in series provides

unlimited flexibility. It is physically possible to connect an unlimited number DRUs to the

DHU through the installation of DEUs.

The total number of DRU’s that can be served is limited by the cumulative noise effect caused

by antenna combining. This number cannot be determined until the radius distance of

coverage required at the DRU antenna is determined and the path loss attributed to the

structure are known. The system design requires that the carrier to noise differential be greater

than 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 can

either be used as ahub for an expanded system or replaced with aDEU which is then connected to a

relocated DHU. It should also be noted that aDEU can be used as an optical regenerator. ADRU

may sometimes need to be located at apoint that is beyond the 500 or 750 meter limit (depending

on fiber type) imposed by the optical link. The solution is to install aDEU at the maximum optical

link limit (500 or 750 meters) from the DHU. This provides an additional 500 or 750 meters of

optical 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 male

connector) for connection to the DRU. The DRU is equipped with an SMA female connector

for connecting the antenna cable.

ADCP-75-110 • Issue 2B • July 2001

Page 22

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 GAIN

CEILING-MOUNT

HALLWAY

2.5 dBi GAIN CEILING-MOUNT

OMNIDIRECTIONAL

8 dBi GAIN

70 DIRECTIONAL PANEL

(WALL-MOUNT) 7.5 dBi GAIN

90 DIRECTIONAL PANEL

(CORNER MOUNT)

MOUNTING BASE

LENGTH - 3.85 INCHES

(98 MM)

ALL ANTENNAS ARE EQUIPPED WITH

A 72-INCH RG58/U CABLE TERMINATED

WITH A MALE SMA CONNECTOR

MOUNTING STUD

LENGTH - 1.5 INCHES (38 mm)

DIAMETER - 0.875 INCHES (22 MM)

MOUNTING STUD

LENGTH - 1.5 INCHES (38 mm)

DIAMETER - 0.875 INCHES (22 MM)

16237-C

Figure 12. 800 MHz DRU Antenna Options

The DRU antennas are designed for unobtrusive mounting within an office environment. Each

type of antenna provides aspecific coverage pattern in order to accommodate the shape of the

area where coverage is required. The ceiling-mount omni directional antenna is designed to

mount in the center of the coverage area. The directional panel antenna is designed to mount

vertically on one side of the coverage area. The panel antenna (800 MHz only) provides is

designed to mount vertically in the corner of the coverage area. The ceiling mount hallway

antenna is designed to mount in the center of long corridors. Antennas other than those offered

by ADC may also be used if required.

Note:To comply with Maximum Permissible Exposure (MPE) requirements, antennas must

be installed to provide at least 20 centimeters (8 inches) of separation from all persons per

FCC 47 CFR part 2.1091.

ADCP-75-110 • Issue 2B • July 2001

Page 23

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 INCHES

36 MM)

4 dBi GAIN

CEILING-MOUNT

HALLWAY

2.5 dBi GAIN CEILING-MOUNT

OMNIDIRECTIONAL

ALL ANTENNAS ARE EQUIPPED WITH

A 72-INCH RG58/U CABLE TERMINATED

WITH A MALE SMA CONNECTOR

MOUNTING STUD

LENGTH - 1.5 INCHES (38 mm)

DIAMETER - 0.875 INCHES (22 MM)

Fig 13-A

MOUNTING BASE

LENGTH - 2.5 INCHES

(64 MM)

7.5 dBi GAIN

90 DIRECTIONAL PANEL

(COMBINATION WALL

AND 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 for

reporting minor and major alarms to an external alarm system. Aminor alarm is defined as a

high temperature condition. Amajor alarm is defined as any fault condition except high

temperature. Connections to the alarm contacts are provided through a screw-type terminal

strip. 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 in

the 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 for

selecting the required frequency band. The band selection must be done prior to installation

since the DIP switch is usually not accessible after the unit is mounted. Once the required

selection has been made, no further band adjustments are required.

ADCP-75-110 • Issue 2B • July 2001

Page 24

2.10 Maintenance Requirements

The Digivance ICS requires no regular maintenance to insure continuous and satisfactory

operation. Maintenance, as it applies to the Digivance ICS, primarily involves diagnosing and

correcting service problems as they occur. Faults and failures arising from within the

Digivannce ICS will generate an external alarm response which includes lighting an LED

indicator(s) and closing or opening aset of alarm contacts. When an alarm is reported, it will

be necessary to isolate the source of the problem by observing the LED indicators on each unit

and then performing specified tests to isolate the problem. Once the source of the fault is

isolated, the appropriate action can be taken to correct the problem. The only unit components

that can be replaced are the cooling fans which mount in the DHU and the DEU. The failure of

any other component within aunit will require replacement of the unit. Basic trouble-shooting

procedures are provided in Section 5 of this manual.

2.11 System Design Recommendations

Follow asystematic process when designing an in-building coverage solution. The following

sub 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 this

manual for additional information.

2.11.1 Phase One – Initial Evaluation

Qualify the Installation: Confirm that there are no extenuating circumstances that would

prevent asuccessful installation such as: extreme cellular system issues (blocking, severe

interference, site problems, etc.), building issues, power issues, or safety issues (site should

not 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 be

provided. Will it beadirect feed from aBTS (microcell) or an over-the-air connection via a

donor antenna? If it is a donor antenna, is the customer within the coverage footprint of a

serving cell or better? The coverage can be determined during the preliminary walkthrough by

checking the downlink Received Signal Strength Indication (RSSI) outside the building with a

unity gain sampling antenna. Sometimes arooftop reading is needed to obtain asufficient

signal level. Note that it is an FCC violation to expand the normal coverage footprint of a

cellular site with an in-building product. In addition, consider the impact the system will have

on traffic, especially the busy hour. Confirm with the service provider that the expected

increase in the volume of calls will be addressed (if needed), possibly with additional

equipment such as additional channels or a microcell.

Determine the Amount of Building Attenuation: If a donor antenna will provide the RF link

to 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 be

accomplished during the preliminary walkthrough.

Discuss Installation with Building Management and Engineering: Discuss all initially

anticipated 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

building personnel for an initial approval/confirmation. This gives a good estimate of the

extent of the system work needed. Occasionally, some of the system design work can be

accomplished at this point.

2.11.2 Phase Two – System Design

Determine forward and reverse path loss and then design for unity gain on the uplink

and maximum power out of the DRU on the downlink:The overall purpose of the

Digivance ICS is to transparently overcome attenuation losses, not to provide additional gain

beyond what is required to bring the signal to unity gain. Complete the following steps to

make this determination:

1. Determine the in-building reverse path (uplink) losses at typical operating frequencies

and distances from the subscriber handset (terminal) to the DRU. This information will

be used to determine the optimal uplink signal level to the outside world.

2. Determine the typical composite cell site Effective Radiated Power (ERP) into the

system. Calculate the interface adjustment required to feed the required downlink signal

level 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 the

following 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) for

the 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 needed

and 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 and

engineering: Explain the proposed system design with building management and engineering

personnel 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 the

following:

1. Install the DHU as described in Section 3 of this manual and adjust the RF interface

levels based on the system design specifications. Additional information concerning the

DHU 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

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 with

service provider if desired).

c) Address performance issues as needed.

4. Install the remaining DRUs and also any DEUs as described in the Digital Expansion

Unit Installation Instructions (ADCP-75-111). Test call quality and range of each DRU

as 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 and

quality.

2. Make continuous calls from DRU to DRU, checking all service areas, seams, and

coverage boundaries for call quality (both DL and UL). Address all quality issues as

needed.

3. Place calls both leaving and entering the building(s), in parking lots, etc. Address all

quality 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

3 DIGITAL HOST UNIT INSTALLATION PROCEDURE

This section provides the installation procedures for the DHU. Installation of the DEU(s) and

DRU(s) may proceed separately from the installation of the DHU. The installation procedures

for 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 DRU

antennas, and the ac/dc converter (optional DRU accessory) are provided in the Digital

Remote Unit Installation Instructions (ADCP-75-112) which are shipped with the DRU. When

all units of the Digivance ICS have been installed, refer to Section 4 of this manual for the

system 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 sure

each 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 equipment

locations before the equipment is installed. Whenever possible, route fiber optic cables

through conduit or a guideway such as the FiberGuide system. Avoid routing fibers through

ladder type cable racks or troughs that do not provide sufficient support to limit bending or

prevent accidental damage. Tie-wrapping is not recommended as ameans of securing fiber

optic cables. Make sure to leave sufficient slack at each equipment location for connectorizing

and cable management. The procedures for terminating the cables and for connecting the

cables 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 source

FCC ID: F8I-DVICS1900-1

ADCP-75-110 • Issue 2B • July 2001

Page 28

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 ties

3.3 Unpacking and Inspection

This subsection provides instructions for opening the shipping boxes, verifying that all parts

have been received, and verifying that no shipping damage has occurred. Use the following

procedure to unpack and inspect the DHU:

1. Open the shipping carton and carefully unpack the DHU from the protective packing

material.

2. Check the DHU for broken or missing parts. If there are any damages, contact ADC (see

Section 6at the end of this manual) for an RMA (Return Material Authorization) and to

reorder 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 frequency

bands. ADIP switch is provided on the underside of the DHU for selecting the required

frequency band. Use the following procedure to set the DIP switch to provide the required

1900 MHz frequency band:

1. Determine the required frequency band for the DHU (AD, DBE, BEF, or EFC) as

specified in the system design plan.

2. Orient the DHU as shown in Figure 14 and then locate the small hole in the bottom of

the DHU that provides access to the band select DIP switch.

3. Use anon-conductive probe to align the DIP switch sliding handles to provide the

required frequency band (see Figure 14).

4. Place the copper sticker provided with the DHU over the small opening that provides

access to the DIP switch.

Note: The copper sticker provides EMI/RFI shielding. Do not use some other type of material

to cover the DIP switch access hole.

ADCP-75-110 • Issue 2B • July 2001

Page 29

ALIGN DIP SWITCH HANDLES AS

SHOWN ON THE LABEL TO PROVIDE

SPECIFIED FREQUENCY BAND

Fig 13-A

Figure 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, use

which ever procedure is appropriate for the installation:

Note: To insure that all optical connectors and transceivers remain dust-free during

installation, leave all dust caps and dust protectors in place until directed to remove

them 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. Both

US standard and metric machine screws are included for rack mounting the DHU. When

loading the DHU in arack, make sure the mechanical loading of the rack is even to avoid a

hazardous condition such as aseverely unbalanced rack. The rack should safely support the

combined weight of all the equipment it holds. In addition, the maximum recommended

ambient temperature for the DHU is 50º C (122º F). Allow sufficient air circulation or space

between units when the DHU is installed in amulti-unit rack assembly because the operating

ambient temperature of the rack environment might be greater than room ambient.

Warning:Wet conditions increase the potential for receiving an electrical shock when

installing or using electrically-powered equipment. To prevent electrical shock, never install

or 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

3. Reinstall both mounting brackets so the long side of the bracket is flush with the DHU

front panel as shown in Figure 15. Use the screws removed in step 2to re-attach the

brackets to the DHU enclosure.

16426-A

REMOVE AND REINSTALL MOUNTING

BRACKETS AS SHOWN FOR

INSTALLATION IN 23-INCH RACKS

Figure 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) and

then 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 and

right 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

3.5.2 Wall-Mount Installation

The DHU may be mounted from any flat vertical surface. It is recommended that abacker

board such as 3/4-inch plywood be applied over the mounting surface to provide asecure base

for attaching the DHU. Two mounting holes are provided in the cable management tray for

securing 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 when

installing or using electrically-powered equipment. To prevent electrical shock, never install

or use electrical equipment in awet location or during alightning storm.

1. Obtain the appropriate fasteners (lag bolts, screw anchors, etc.) for securing the DHU to

the mounting surface.

2. Position the DHU on the mounting surface in the specified location (per the system

design) 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 and

right sides of the DHU for air intake and exhaust.

16427-A

BACKER BOARD SUCH

AS 3/4-INCH PLYWOOD

Figure 17. DHU Wall-Mount Installation

3. Using the DHU as atemplate, mark the location of the mounting holes on the mounting

surface.

Note:The mounting holes in the DHU cable management tray are spaced 11-21/32

inches (296 mm) center to center.

ADCP-75-110 • Issue 2B • July 2001

Page 32

4. Set the DHU aside and then drill appropriately sized holes in the mounting surface for

the fasteners.

5. Partially install the fasteners in the drilled holes. Leave the head of each fastener

protruding 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 the

chassis. Use the following procedure to connect the grounding wire to the chassis and to route

the grounding wire to an approved earth ground source:

1. Obtain alength of #18 AWG (1.00 mm) insulated stranded copper wire for use as a

chassis 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-A

Figure 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 or

practice) earth ground source.

6. Cut the chassis grounding wire to length and connect it to the approved ground source as

required by local code or practice.

Note:Be sure to maintain reliable grounding for rack and wall mounted equipment. Pay

particular attention to ground source connections.

ADCP-75-110 • Issue 2B • July 2001

Page 33

3.7 Coaxial Cable Connections

The RF interface between DHU and the BTS is supported through apair of type Nfemale

connectors mounted on the DHU front panel. One connector provides the coaxial cable

connection for the forward path (downlink) signal. The other connector provides the coaxial

cable connection for the reverse path (uplink) signal. Coaxial cables link the DHU to the BTS

through an interface device such as the LIU or the RIU. Use the following procedure to install

the 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 coaxial

communications cable (RG 400 or equivalent) for all coaxial connections.

2. Route the forward path and reverse path coaxial cables (if not already routed) between

the DHU and the specified BTS interface device (per system design) and cut to the

required length. Allow sufficient slack for dressing and organizing cables at the DHU.

3. Terminate each cable with atype Nmale connector following the connector supplier’s

recommendations.

4. Connect the forward path cable to the RF IN connector on the DHU front panel as

shown in Figure 19.

5. Connect the reverse path cable to the RF OUT connector on the DHU front panel as

shown in Figure 19.

16428-A

TYPE-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 (donor

antenna) as specified in the instructions provided with that unit.

8. Complete all remaining coaxial cable connections between the LIU and the BTS or

between the RIU and the donor antenna as specified in the instructions provided with the

interface unit.

ADCP-75-110 • Issue 2B • July 2001

Page 34

3.8 Ports 1–6 Optical Connections

The optical interface between the DHU and each DEU or DRU is supported by six optical

ports. Each of the six optical ports provides aduplex LC type optical transceiver which is

mounted on the DHU front panel. One side of the transceiver provides the optical fiber

connection for the forward path (downlink) signal. The other side of the transceiver provides

the optical fiber connection for the reverse path (uplink) signal. Use the following procedure to

install 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 radiation

can seriously damage the retina of the eye. Do not look into the ends of any optical fiber. Do

not look directly into the optical transceiver of any digital unit or exposure to laser radiation

may result. An optical power meter should be used to verify active fibers. Aprotective cap or

hood MUST be immediately placed over any radiating transceiver or optical fiber connector

to avoid the potential of dangerous amounts of radiation exposure. This practice also prevents

dirt 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 already

routed) and cut to required length. Allow sufficient slack for dressing and organizing the

cables 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 500

meters (1,641 feet).

3. Terminate each optical fiber with afield-installable LC type fiber optic connector as

shown in Figure 20. Follow the instructions provided by the connector manufacturer for

installing 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 link

and 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 1forward

and reverse path connectors together (see Figure 20). Make sure the forward path and

reverse path connectors are oriented as shown.

Note:When viewing any Port 1-6 optical transceiver from the front, the forward path port is

on 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 the

optical link connector pair into DHU optical port 1 (see Figure 20).

ADCP-75-110 • Issue 2B • July 2001

Page 35

16429-B

REVERSE PATH (RX)

CONNECTOR

FORWARD PATH (TX)

CONNECTOR

OPTICAL CONNECTOR

ASSEMBLY DETAIL

PORT 1

OPTICAL

TRANSCEIVER

OPTICAL

CONNECTOR

CABLE

GUIDES

CABLE GUIDE

DETAIL

DESIGNATION CARD AND

HOLDER DETAIL

HOLDER

CARD

CLEAR

PLASTIC

COVER

Figure 20. Ports 1–6 Fiber Optic Cable Connections

9. Place the optical fibers within the cable guides provided on the cable management tray (see

Figure 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 specified

in the instructions provided with that unit.

11. Use the designation card provided (see Figure 20) to indicate the location and name of

the DRU or DEU that is connected to the optical fibers. The designation card holder may

be attached to any convenient flat surface such as the DHU cable management tray

12. 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 female

connectors. Each DHU RJ-45 connector provides nominal 48 Vdc power for the associated

DRU except when the DRU is powered with an ac/dc converter. A category 3 or 5 twisted pair

cable is used to feed the power from the DHU to the DRU. Use the following procedure to

install 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 to

required 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

3. Terminate each end of the cable with amale RJ-45 connector. Match the wire color to

the 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

White/Green

Green

White/Orange

Orange

White/Blue

Blue

White/Brown

Brown

+48 VDC ON PINS 1, 3, 5, AND 7

RETURN ON PINS 2, 4, 6, AND 8

16180-A

4. Perform acontinuity test to verify that each wire is properly connected to the terminating

RJ-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-A

RJ-45 CONNECTOR

DETAIL

PORT 1

DC POWER

CONNECTOR

RJ-45

CONNECTOR

CABLE

GUIDES

CABLE GUIDE

DETAIL

Figure 21. 48 Vdc Power Cable Connection

ADCP-75-110 • Issue 2B • July 2001

Page 37

6. Place the DC power cable within the cable guides provided (see Figure 21) and then

dress 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 with

that 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 DHU

front panel. The terminal plug provides connections to normally open (NO) and normally

closed (NC) dry type alarm contacts for both minor and major alarms. Acategory 3 or 5 cable

is typically used to connect the DHU to the external alarm system. Use the following

procedure 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 the

cable at the DHU.

3. Strip back the outer cable sheath and insulation to expose the wires at both ends of the

cable 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/NO

terminals (whichever is required by the external alarm system) on the DHU alarm

terminal connector (supplied with DHU) as shown in Figure 22.

16370-A

ALARM

CONNECTOR

MAJOR

ALARM

WIRES

MINOR

ALARM

WIRES

ALARM CONNECTOR

DETAIL

Figure 22. External Alarm System Connections

ADCP-75-110 • Issue 2B • July 2001

Page 38

5. Connect the Minor alarm wire pair to the MINOR COM/NC or MINOR COM/NO

terminals (whichever is required by the external alarm system) on the DHU alarm

terminal connector as shown in Figure 22.

6. Connect the Major and Minor alarm wire pairs to the appropriate terminals on the

external 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-wire

AC power cord connector located on the DHU front panel. The AC connector provides a

connection point for the power cord which is provided separately with the DHU. Use the

following procedure to install the AC power cord:

1. Locate the AC power cord which is provided separately with the DHU. Use only the AC

power cord provided with the DHU or an equivalent UL/CUL listed 3-conductor, 18

AWG cord terminated in amolded-on plug cap rated 125 V, 15 A with amaximum

length of 6 feet (1.8 m).

Note:The DHU is intended to be used with a 3-wire grounding type plug which has a

grounding pin. Equipment grounding is required to ensure safe operation. Do not defeat

the 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-A

AC POWER CORD

Figure 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 circuits

which may cause damage to over-current protection devices and supply wiring.

ADCP-75-110 • Issue 2B • July 2001

Page 39

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 this

manual 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 of

equipment 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 when

troubleshooting or when planning for system expansion.

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4 SYSTEM OPERATION

This section provides guidelines for turning-up the Digivance ICS, verifying that all units are

operating properly, testing to ensure that all performance requirements are satisfied, and

correcting any installation problems. This process assumes that the various units that comprise

the Digivance ICS have been installed in accordance with the system design plan and the BTS

interface unit (LIU or RIU) has been installed and tested. The procedures for installing and

testing 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 this

section:

• Portable spectrum analyzer

• Portable test transmitter

• Cell phone

• Pencil or pen

• Writing pad

4.2 Turn-Up System and Verify Operation

The process of turning-up the system and verifying operation involves powering up the

various 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 as

described, refer to Subsection 4.3 for the correction procedures.

1. Temporarily disconnect the alarm system or notify alarm system provider that testing is

in 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 (for

approximately 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, skip

steps 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) and

then green.

9. Verify that the PORT 1OK/NOK LED on the DHU turns yellow (for approximately 6

seconds) and then green.

ADCP-75-110 • Issue 2B • July 2001

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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 six

seconds) and then green.

14. Verify that the STATUS LED on the DRU connected to PORT 1turns yellow (for

approximately six seconds) and then green.

15. Repeat the procedure covered in steps 5through 14 for each of the remaining DHU

optical 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

UNIT

LED Green

Yellow

Red

Off

Indicates 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 1–6

OK/NOK

LEDs Green

Yellow

Red

(blinking)

Off

Indicates if any connected DEU or DRU is normal or faulty or if the

optical 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 optical

signal from any connected DEU or DRU detected, or excessive reverse

path 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 major

fault conditions. Later versions of the DHU use a blinking red LED to

indicate no optical signal received from the connected DRU or DEU.

OVERDRIVE

LED

Green

Yellow

Red

Indicates when the forward path RF input is below or above the

overdrive 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 aminor

alarm (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

Table 8. Digital Expansion Unit LED Indicators

INDICATOR COLOR DESCRIPTION

UNIT

LED Green

Yellow

Red

Off

Indicates 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 PORT

LED

Green

Red

(steady or

blinking)

Off

Indicates when the optical inputs from the DHU or supporting

DEU are normal or lost.

DHU or supporting DEU in normal state, no faults detected.

No forward path optical signal from DHU or supporting DEU detected

or excessive forward path errors detected. (see Note).

DEU internal fault.

PORT 1–6

OK/NOK

LEDs Green

Yellow

Red

(blinking)

Off

Indicates if any connected DEU or DRU is normal or faulty or if the

optical 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 optical

signal from any connected DEU or DRU detected, or excessive reverse

path 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 DEU internal fault.

*Early versions of the DEU use a steady red LED to indicate all major

fault conditions. Later versions of the DEU use a blinking red LED to

indicate 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 aminor

alarm (yellow LED). All other types of faults will generate amajor alarm (red LED).

Table 9. Digital Remote Unit LED Indicator

INDICATOR COLOR DESCRIPTION

STATUS

LED

Green

Yellow

Red

(blinking)

Off

Indicates if the DRU is normal or faulty or if the forward path optical

inputs 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, or

excessive 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 major

fault conditions. Later versions of the DRU use a blinking red LED to

indicate no optical signal received from the DHU or DEU.

Note:Detection of any fault will generate an alarm. A high temperature fault will generate

aminor alarm (yellow LED). All other types of faults will generate amajor alarm (red LED).

ADCP-75-110 • Issue 2B • July 2001

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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

= GREEN

16432-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 or

that afunctional fuse is installed.

2. Test AC power cord and repair/replace as required.

3. Replace faulty DHU or DEU

PROBLEM 2 The UNIT LED indicator on the DHU or DEU is RED.

DHU OR DEU = RED

= OFF

= GREEN

16433-A

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. Faulty DHU or DEU. 1. Replace faulty DHU or DEU

PROBLEM 3 The OVERDRIVE LED indicator on the DHU is RED.

DHU = RED

= GREEN

16434-A

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. Forward path RF input level at the DHU is

too high 1. Reduce forward path gain by inserting additional

attenuation 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 DEU

FORWARD PATH LINK

REVERSE PATH LINK

DRU 3 = RED

= GREEN

16435-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 at

the 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 DEU

FORWARD PATH LINK

REVERSE PATH LINK

DRU 3 = RED

= GREEN

16436-A

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. Faulty forward path optical link. (Early

version 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 at

the DHU or DEU. If problem is corrected,

replace the DHU or DEU.

(continued)

ADCP-75-110 • Issue 2B • July 2001

Page 44

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 DEU

FORWARD PATH LINK

REVERSE PATH LINK

DRU 3 = RED

= GREEN

16437-A

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. Forward and reverse path optical links

reversed.

2. Faulty forward and reverse path optical links.

3. Faulty DHU, DEU, or DRU.

1. Verify forward and reverse path optical

connections 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 DEU

FORWARD PATH LINK

REVERSE PATH LINK REMOTE DEU

(Port 3)

= RED

= OFF

= GREEN

16438-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 DEU

FORWARD PATH LINK

REVERSE PATH LINK REMOTE DEU

(Port 3) = RED

= OFF

= GREEN

16439-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 DEU

FORWARD PATH LINK

REVERSE PATH LINK REMOTE DEU

(Port 3) = RED

= OFF

= GREEN

16440-A

POSSIBLE CAUSE CORRECTIVE ACTION/COMMENTS

1. Forward and reverse path optical links

reversed.

2. Faulty forward and reverse path optical links.

1. Switch forward and reverse path optical

connections 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 DEU

FORWARD PATH LINK

REVERSE PATH LINK

DRU 3 = RED

= OFF

= GREEN

16441-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 34

and 48 Vdc. Replace DHU, DEU, or ac/dc

converter if voltage is outside specified range.

ADCP-75-110 • Issue 2B • July 2001

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4.4 Test System Performance

Testing the performance of the system involves completing various RF tests and telephone

service tests that verify if the system is functioning properly. Use the following procedure to

test the system performance:

1. Verify that the forward path (downlink) input signal level at the DHU is optimized. The

peak 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 optimum

operation in aCDMA system, the input signal level should be set below the level of the

pilot signal. Adjust level based upon observation of overload indicator during traffic

peaks (busy hour).

2. Verify that the reverse path (uplink) signal level at the local BTS or donor antenna is

optimized. Note that the reverse path output signal level required is dependent on service

provider signal to noise requirements, ICS system noise floor, the service provider

equipment, and the system configuration.

3. Check and record the Received Signal Strength Indication (RSSI) and any spurious

emission levels at and between all DRU antennas. Analyze all DRUs and the DHU

interface using aspectrum analyzer.

4. Plot the RSSI levels on a floor plan of the building and check against the pre-installation

RSSI levels to determine the overall and average RSSI improvement attributed to the

Digivance ICS. Check the entire Digivance coverage area.

5. Verify call processing and voice quality within the coverage areas. Initiate and receive

multiple long and short duration calls. Document the performance and address any issues

as calls are processed within the entire coverage area. Assuming a properly functioning

server RF link and BTS and a properly designed and optimized ICS system, there should

be no clicks, mutes, clipping, or crackles within the coverage area. In awireless office

application, hand off will not occur.

6. If the DHU interfaces with alocal BTS (microcell), verify the handoff function by

placing acall and confirming handoffs between the Digivance/microcell coverage area

and the outdoor macrocell coverage area (macro system) and vice versa. The handoff

should 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 by

placing acall and then walking between the Digivance coverage area and an area

receiving good coverage directly from the cell site base station. There should be no

noticeable difference in call quality.

8. Following service provider guidelines, test the 411 and 911 links to verify the routing of

emergency and special services calls on local BTS configurations.

9. Verify that the alarm reporting system functions properly by turning the DHU off. This

should generate amajor alarm and operate aset of alarm contacts. Check for alarm

confirmation from the service provider’s local switch and Network Operations Center

(NOC). Aminor alarm (high temperature fault condition) can be checked by opening or

closing (which ever applies) the minor alarm lead wires at the DHU. Note that this tests

only the external alarm system and does not verify operation of the Digivance alarm

reporting system.

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5 SYSTEM MAINTENANCE PROCEDURES

This section explains the alarm reporting system, provides amethod for isolating and

troubleshooting faults, and provides procedures for replacing the DHU or DEU cooling fans.

The Digivance ICS requires no regular maintenance to insure continuous and satisfactory

operation. Maintenance, as it applies to the Digivance ICS, primarily involves diagnosing and

correcting service problems as they occur. When an alarm is reported, it will be necessary to

follow asystematic troubleshooting procedure to locate the problem. Once the source of the

problem is isolated, the appropriate corrective action can be taken to restore service. The only

unit 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 this

section:

• 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. LED

indicators are provided on the front panel of the various units to indicate when afault is

detected. In addition to LED indicators, the DHU also provides normally open (NO) and

normally closed (NC) dry alarm contacts for reporting 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 high temperature.

When the DHU alarm contacts are connected to an external alarm system, detection of a fault

will generate an alarm at the Network Operations Center (NOC). However, various types of

faults may not generate an alarm response. In this case, the first indication of a problem will

probably be from cell phone users reporting aloss of service or poor service. Whenever a

problem is reported, whether by a external alarm system or by a call from auser, refer to

Subsection 5.3 to isolate and correct the fault.

ADCP-75-110 • Issue 2B • July 2001

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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 be

observed. Then check the LED indicators on the DHU and note any that are red, yellow, or

off.If aPort 1–6 OK/NOK LED indicator is any color but green, check the LED indicators on

the connected DEUs and/or DRUs. When the required information has been obtained, locate

the problem in Table 11, check out the suggested possible causes, and take corrective action as

required.

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 or

DEU 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 from

ac/dc power converter, DHU, or DEU.

3. Faulty DRU.

1. Test cable for continuity and repair or replace if

faulty.

2. Check DC voltage level at the DRU (see Subsection

5.4.3). Replace converter, DHU, or DEU (whichever

applies) 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 between

DHU or DEU and DRU

2. Faulty optical transmit port at DHU or

DEU; 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 DRU

if port is faulty (see Subsection 5.4.1).

(continued)

ADCP-75-110 • Issue 2B • July 2001

Page 48

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 between

DHU 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 DRU

if 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 link

between the DHU or DEU and DRU

2. 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 between

DEU or DHU and supported DEU.

2. Faulty optical transmit port at DHU or DEU or

faulty 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 between

DEU or DHU and supported DEU.

2. Faulty optical receive port at DHU or DEU or

faulty 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 link

between 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

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 DHU

and the LIU or RIU.

2. Faulty coaxial connection between LIU and

the BTS or RIU and donor antenna.

3. Faulty LIU or RIU.

4. Faulty DHU

5. Fault with cellular network or equipment.

1. Check forward path signals at the DHU. Check

reverse 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 that

cellular 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 immediate

vicinity is creating interference. 1. Try turning off each device that may be causing

interference 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 channels

available.

2. Faulty DHU, DEU, or DRU.

1. Wait afew minutes and try dialing again. Upgrade

service 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 RF

coaxial link. 1. Adjust attenuation at RIU or LIU.

ADCP-75-110 • Issue 2B • July 2001

Page 50

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 interrupt

communications between fiber linked components. Use the following procedure to determine

if afault exists with an optical port or with an optical link:

Danger:This equipment uses aClass 1Laser according to FDA/CDRH rules. Laser radiation

can seriously damage the retina of the eye. Do not look into the ends of any optical fiber. Do

not look directly into the optical transceiver of any digital unit or exposure to laser radiation

may result. An optical power meter should be used to verify active fibers. Aprotective cap or

hood MUST be immediately placed over any radiating transceiver or optical fiber connector

to avoid the potential of dangerous amounts of radiation exposure. This practice also prevents

dirt 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 or

link to be tested in the OFF position (press O).

3. Disconnect the optical connectors at the DHU or supporting DEU optical port (near end

of fiber) and place adust cap over each connector.

4. Plug aloopback into the optical port to be tested as shown in Figure 24.

16767-A

OPTICAL LOOPBACK

CONNECTION DETAIL

PORT 1

OPTICAL

TRANSCEIVER

OPTICAL

LOOPBACK

Figure 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 optical

port is faulty. Replace the DHU or DEU and then recheck system operation. If the LED

turns green, the optical port is good. Proceed to step 7to continue the test procedure.

ADCP-75-110 • Issue 2B • July 2001

Page 51

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 optical

fiber connectors (remove dust caps) to the optical port.

9. Disconnect the optical connectors at the DRU optical port or remote DEU host port (far

end of fiber).

10. Connect the loopback (requires LC adapters) to the optical fiber connectors.

16768-A

OPTICAL

ADAPTER

OPTICAL

LOOPBACK

OPTICAL

CONNECTOR

Figure 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 the

optical fibers is faulty. Refer to Subsection 5.4.2 to isolate which fiber is at fault. If the

LED turns green, the optical fibers are good. Proceed to step 14 to finish the test

procedure.

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 fiber

17. 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 PORT

ON/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 LED

turns 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

16769-A

OPTICAL LOOPBACK

CONNECTION DETAIL

OPTICAL

TRANSCEIVER

OPTICAL

LOOPBACK

Figure 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) to

the 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 communications

between linked components. Use the following procedure to isolate aproblem with an optical

fiber or optical connector:

Danger:This equipment uses aClass 1Laser according to FDA/CDRH rules. Laser radiation

can seriously damage the retina of the eye. Do not look into the ends of any optical fiber. Do

not look directly into the optical transceiver of any digital unit or exposure to laser radiation

may result. An optical power meter should be used to verify active fibers. Aprotective cap or

hood MUST be immediately placed over any radiating transceiver or optical fiber connector

to avoid the potential of dangerous amounts of radiation exposure. This practice also prevents

dirt 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 be

tested in the OFF position (press O)if not already off.

3. Disconnect the optical connectors at the DHU or supporting DEU and at the

corresponding DRU or remote DEU.

ADCP-75-110 • Issue 2B • July 2001

Page 53

4. Inspect the optical connectors. Verify that each connector is clean and that no scratches

or imperfections are visible on the fiber end. Clean and polish the optical connector if

necessary.

5. Connect a laser light source to one end of the first optical fiber and an optical power

meter to the other end.

6. Verify that the power loss is within specifications (8 dB loss) for the length of the fiber

installed. If the power loss is not within specifications, repair or replace the optical fiber

and/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 corresponding

DRU or remote DEU.

9. At the DHU or supporting DEU, place the PORT ON/OFF switch for the fiber link that

was 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 power

converter (available separately as an accessory item) plugged into a properly grounded 120

Vac 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).

POWER

PORT

POWER

CONNECTOR

RJ-45 CIRCUIT

ACCESS TOOL

16205-A

Figure 27. Connect RJ-45 Circuit Access Tool

ADCP-75-110 • Issue 2B • July 2001

Page 54

4. Using aDC voltmeter, verify that the DC voltage level is between 34 and 48 Vdc

between any set of positive and negative (+/-) terminals at the RJ-45 circuit access tool

as shown in Figure 28. Due to source current limiting at the DHU or DEU, low voltage

can 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 care

when working near exposed terminals or uninsulated cables. Be careful not to touch exposed

terminals or to cause ashort between terminals when checking voltage levels.

16206-A

TEST POINTS

(+) (-) TEST POINTS

(+) (-)

5 6

7 8 1 2

3 4

Figure 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 between

the +/– 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. This

will drop all existing calls, cause atemporary loss of service, and generate amajor alarm. Use the

following 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 ESD

wrist strap while completing each section of the fan installation procedure.

Warning:Electronic components can be damaged by static electrical discharge. To prevent

ESD damage, always wear an ESD wrist strap when working on the DHU or DEU and when

handling electronic components.

2. Observe the fans (located on right side of enclosure) to determine which fan requires

replacement. The faulty fan may be stopped, running at areduced speed, or the fan

bearing may be noisy.

Note:Because the Mean Time Between Failures (MBTF) is the same for both fans, it may be

more 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

4. Place the DHU or DEU AC power On/Off switch (see Figure 3 or Figure 7) in the OFF

position (press O).

5. Remove the six flat-head screws (requires TORX screwdriver with T15 bit) that secure the

fan/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 is

exposed and the connectors are accessible.

7. Lift the small latch on each wiring harness connector (see Figure 29) and carefully

unplug each connector from the circuit board connector.

16172-B

Figure 29. Fan/Grill Assembly Removal

8. Remove the four plastic rivets that secure the faulty fan to the grill by pushing outward

on 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 the

wiring 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 six

flat-head screws removed in step 5.

ADCP-75-110 • Issue 2B • July 2001

Page 56

16173-B

Figure 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 back

online.

ADCP-75-110 • Issue 2B • July 2001

Page 57

6 GENERAL INFORMATION

6.1 Warranty/Software

The Product and Software warranty policy and warranty period for all ADC products is

published in ADC’s Warranty/Software Handbook. Contact the Broadband Connections

Group (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 warranty or software information

or 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. Contact

the 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. Any

attempt to repair or modify ADC Products without authorization from ADC voids the

warranty.

If amalfunction cannot be resolved by the normal troubleshooting procedures, contact 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). A telephone consultation can sometimes resolve a

problem without the need to repair or replace the ADC Product.

If, during atelephone consultation, ADC determines the ADC Product needs repair, ADC will

authorize the return of the affected Product for repair and provide aReturn Material

Authorization number and complete shipping instructions. If time is critical, ADC can arrange

to ship the replacement Product immediately. In all cases, the defective Product must be

carefully packed and returned to ADC.

6.4 Repair Charges

If the defect and the necessary repairs are covered by the warranty, and the applicable warranty

period has not expired, the Buyer’s only payment obligation is to pay the shipping cost to

return the defective Product. ADC will repair or replace the Product at no charge and pay the

return shipping charges.

Otherwise, ADC will charge apercentage of the current Customer Product price for the repair

or NTF (No Trouble Found). If an advance replacement is requested, the full price of a new

unit will be charged initially. Upon receipt of the defective Product, ADC will credit Buyer

with 20 percent of full price charged for any Product to be Out-of-Warranty. Products must be

returned within (30) days to be eligible for any advance replacement credit. If repairs

necessitate avisit by an ADC representative, ADC will charge the current price of a field visit

plus round trip transportation charges from Minneapolis to the Buyer’s site.

ADCP-75-110 • Issue 2B • July 2001

Page 58

6.5 Replacement/Spare Products

Replacement parts, including, but not limited to, button caps and lenses, lamps, fuses, and

patch cords, are available from ADC on a special order basis. Contact BCG Technical

Assistance 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 at

1-800-366-3891, extension 63000 (in U.S.A. or Canada) or 952-946-3000 (outside U.S.A. and

Canada) 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 Material

Authorization number prior to returning an ADC Product.

All returned Products must have a Return Material Authorization (RMA) number clearly

marked on the outside of the package. The Return Material Authorization number is valid for

90 days from authorization.

6.7 Customer Information and Assistance

For customers wanting information on ADC products or help in using them, ADC offers the

services listed below. To obtain any of these services by telephone, first dial the central ADC

telephone number, then dial the extension provided below.

The central number for calls originating in the U.S.A. or Canada is 1-800-366-3891.For calls

originating outside the U.S.A. or Canada, dial country code “1” then dial 952-946-3000.

Sales Assistance

Extension 63000 • Quotation Proposals

•Ordering and Delivery

•General Product Information

Systems Integration

Extension 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 Operation

BCG Technical Assistance

Center

Extension 63475

E-Mail: bcg_tac@adc.com

•Technical Information

•System/Network Configuration

• Product Specification and Application

• Training (Product-Specific)

•Installation and Operation Assistance

• Troubleshooting and Repair

Product Return Department

Extension 63748

E-Mail: repair&return@adc.com

•ADC Return Authorization number and instructions

must be obtained before returning products.

Product information may also be obtained using the ADC web site at www.adc.com or by

writing 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 no

event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits and ADC further

disclaims any and all liability for indirect, incidental, special, consequential or other similar damages. This disclaimer of

liability 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, extension

63475 (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.

Printed in U.S.A.

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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