FCC ID: F8I-DISSMRAA, user manual, part 1 of 4
Digivance™Indoor Coverage Solution
+
SMR
Single- or Multi-Mode Fiber
System Installation and Operation Manual
ADCP-75-136
Issue 1
November 2002
1238258 Rev A
Digivance
+
SMR
Single or Multi-Mode Fiber
ADCP-75-136
Issue 1
November 2002
™
Indoor Coverage Solution
System Installation and Operation Manual
1238258 Rev A
ADCP-75-136 • Issue 1 • November 2002 • Preface
COPYRIGHT
2002, ADC Telecommunications, Inc.
All Rights Reserved
Printed in the U.S.A.
REVISION HISTORY
ISSUE DATE REASON FOR CHANGE
Issue 1 11/2002 Original
TRADEMARK INFORMATION
ADC and FiberGuide are registered trademarks of ADC Telecommunications, Inc.
Digivance is a trademark of ADC Telecommunications, Inc.
LC is a trademark of Lucent Technologies Inc.
TORX is a registered trademark of Textron, Inc.
IDEN is a registered trademark of Motorola, 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
73475 (in U.S.A. or Canada) or 1-952-917-3475 (outside U.S.A. and Canada), or by e-mail to connectivity_tacl@adc.com.
Page ii
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) 917-1717
TABLE OF CONTENTS
Content Page
1 SYSTEM FUNCTIONAL OVERVIEW.......................................................... 1
1.1 Basic System Components......................................................... 1
1.2 Interface With BTS .............................................................. 1
1.3 Interface With Cellular Phones ...................................................... 1
1.4 Digital Fiber Optic Transport ....................................................... 2
1.5 Capacity for Expansion and Extended Runs.............................................. 3
1.6 Power Requirements ............................................................ 3
1.7 Fault Detection and Alarm Reporting.................................................. 3
2 DIGITAL UNIT DESCRIPTION ............................................................. 4
2.1 Digital Host Unit Description ....................................................... 4
2.2 Digital Remote Unit Description ..................................................... 7
2.3 Digital Expansion Unit Description ...................................................10
2.4 Terms and Definitions............................................................13
2.5 Specifications .................................................................13
3 INSTALLATION PLANNING AND SYSTEM DESIGN ................................................16
3.1 Base Station Interface Requirements..................................................16
3.2 Locating and Mounting Requirements .................................................17
3.3 Powering Requirements .......................................................... 18
3.4 Optical Options and Requirements ................................................... 19
3.5 Coaxial Cable Requirements .......................................................20
3.6 System Expansion Planning........................................................21
3.7 DRU Antenna Options ............................................................21
3.8 External Alarm System Reporting Requirements ..........................................22
3.9 Maintenance Requirements........................................................23
3.10 System Design Recommendations ...................................................23
4 DIGITAL HOST UNIT INSTALLATION PROCEDURE ................................................26
4.1 System Plan Review and Pre-Installation Cable Routing ..................................... 26
4.2 Tools and Materials ............................................................. 26
4.3 Unpacking and Inspection .........................................................27
4.4 Mounting Procecure ............................................................27
4.5 Chassis Ground Connections .......................................................30
4.6 Coaxial Cable Connections ........................................................31
4.7 Modular Optical Transceiver Installation ...............................................32
4.8 Ports 1–6 Optical Connections ......................................................33
4.9 DC Power Connections ...........................................................35
4.10 External Alarm System Connections .................................................. 36
4.11 AC Power Connections ...........................................................37
4.12 Create As-Built Drawing ..........................................................38
5 SYSTEM OPERATION ..................................................................39
5.1 Tools and Materials ............................................................. 39
5.2 Turn-Up System and Verify Operation .................................................39
ADCP-75-136 • Issue 1 • November 2002 • Preface
(continued)
2002, ADC Telecommunications, Inc.
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ADCP-75-136 • Issue 1 • November 2002 • Preface
TABLE OF CONTENTS
Content Page
5.3 Test System Performance......................................................... 42
6 SYSTEM MAINTENANCE PROCEDURES ...................................................... 43
6.1 Tools and Materials ............................................................ 43
6.2 Fault Detection and Alarm Reporting ................................................. 43
6.3 Fault Isolation and Troubleshooting .................................................. 44
6.4 Test Procedures ............................................................... 49
6.5 DHU or DEU Fan Replacement Procedure .............................................. 53
6.6 DHU or DEU Moudular Optical Transceiver Replacement Procedure............................. 55
6.7 DRU Modular Optical Transceiver Replacement Proceudre................................... 57
7 GENERAL INFORMATION ............................................................... 60
7.1 Warranty/Software ............................................................. 60
7.2 Software Service Agreement ....................................................... 60
7.3 Repair/Exchange Policy .......................................................... 60
7.4 Repair Charges................................................................ 61
7.5 Replacement/Spare Products ...................................................... 61
7.6 Returned Material.............................................................. 61
7.7 Customer Information and Assistance................................................. 62
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2002, ADC Telecommunications, Inc.
ABOUT THIS GUIDE
ADCP-75-136 • Issue 1 • November 2002 • Preface
This installation and operation manual provides the following information:
• An overview of the Digivance Indoor Coverage Solution (ICS)
• A description 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
Provides a description of the DEU and procedures for installing the DEU.
Digivance ICS Digital Remote Unit Installation Instructions
Provides a description of the DRU and procedures for installing the DRU.
75-111
75-112
2002, ADC Telecommunications, Inc.
Page v
ADCP-75-136 • Issue 1 • November 2002 • Preface
ADMONISHMENTS
Important safety admonishments are used throughout this manual to warn of possible hazards
to persons or equipment. An admonishment identifies a possible hazard and then explains
what may happen if the hazard is not avoided. The admonishments — in the form of Dangers,
Warnings, and Cautions — must be followed at all times. 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 a wet location or during a lightning 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 a Class 1 Laser 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. A protective 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 a radius of less than 2 inches (50 mm).
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2002, ADC Telecommunications, Inc.
STANDARDS CERTIFICATION
ADCP-75-136 • Issue 1 • November 2002 • Preface
FCC: This equipment complies with the applicable sections of Title 47 CFR Part 90.
UL/CUL: This equipment complies with UL and CUL 1950 Standard for Safety for
Information Technology Equipment, Including Electrical Business Equipment.
The DRU is suitable for use in environmental air space in accordance with Section 300-22(c)
of the National Electrical Code, and Sections 2-128, 12-010(3), and 12-100 of the Canadian
Electrical Code, Part 1, C22.1.
FDA/CDRH: This equipment uses a Class 1 LASER according to FDA/CDRH Rules. This
product conforms to all applicable standards of 21 CFR Part 1040.
IC: This equipment complies with the applicable sections of RSS-131. The term “IC:” before
the radio certification number only signifies that Industry Canada Technical Specifications
were met.
LIST OF ACRONYMS AND ABBREVIATIONS
The acronyms and abbreviations used in this manual are detailed in the following list:
NPSPAC National Public Safety Planning Advisory Committee
A Amperes
AC Alternating Current
AGC Automatic Gain Control
AMPS Advanced Mobile Phone Service
BTS Base Transceiver Station
CDMA Code Division Multiple Access
CDRH Center for Devices and Radiological Health
CUL Underwriters’ Laboratories of Canada
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
iDEN Integrated Digital Enhanced Network
MM Multi-Mode
NOC Network Operations Center
PWR Power
2002, ADC Telecommunications, Inc.
Page vii
ADCP-75-136 • Issue 1 • November 2002 • Preface
RF Radio Frequency
RSSI Received Signal Strength Indication
RX Receive or Receiver
SM Single-Mode
SMR Specialized Mobile Radio
TX Transmit or Transmitter
UL Underwriters’ Laboratories
UPS Uninterruptible Power Supply
V Volts
VAC Volts Alternating Current
VDC Volts Direct Current
WECO Western Electric Company
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2002, ADC Telecommunications, Inc.
1 SYSTEM FUNCTIONAL OVERVIEW
ADCP-75-136 • Issue 1 • November 2002
The Digivance ICS is a digitally distributed antenna system that provides in-building coverage
for wireless phone systems operating within the 800 MHz frequency bands used for SMR and
NPSPAC (SMR
+
) communications. 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 wireless
communications within buildings or structures difficult or impossible. With the Digivance
ICS, wireless phone RF signals can be distributed to the interior areas of any building or
structure to eliminate dead spots and improve reception.
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, a local interface device and a remote interface device must be used as needed to
interface the DHU with the cellular system Base Transceiver Station (BTS).
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 a microcell or a cell site base station. When the BTS is
co-located (microcell interface) with the DHU, a local interface over coaxial cable is possible.
An interface device (ancillary product) must be used to provide the proper input and output RF
signal levels between the BTS and the DHU. When the BTS is not co-located (cell site base
station interface) with the DHU, a remote interface using a donor antenna is required. An
interface device (ancillary product) must be used to provide the proper input and output RF
signal levels between the donor antenna and the DHU.
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 DEU’s and DRU’s.
In the reverse path, the DHU receives digital optical signals from the DRU’s and DEU’s. The
DHU converts the optical signals back to the original RF signal format for transmission to the
BTS.
1.3 Interface With Cellular Phones
The DRU interfaces (through an external antenna) 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. A
small external antenna is connected to the DRU to transmit and receive RF signals to and from
the cellular phones.
© 2002, ADC Telecommunications, Inc.
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ADCP-75-136 • Issue 1 • November 2002
REMOTE INTERFACE
DEVICE
LOCAL INTERFACE
DEVICE
DRU
REMOTE
BTS
DRU
RF
RF
LOCAL
BTS
DHU
DRU
DEU
DEU
DRU
DRU
DRU
DRU
DRU
Figure 1. System Overview Functional Block Diagram
1.4 Digital Fiber Optic Transport
The DHU is connected to each DRU unit over a pair of either multi-mode or single-mode
(depending on the type of optical transceiver specified) optical fibers. One fiber is used to
transport the forward path optical signal. The other fiber 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 as long as the BER is adequate. Either 62.5 or 50 micron
core multi-mode optical fiber; or 9 micron core single-mode optical fiber may be used for the
Page 2
© 2002, ADC Telecommunications, Inc.
DRU
DRU
DRU
18108-A
ADCP-75-136 • Issue 1 • November 2002
optical transport connection. With 62.5 micron core multi-mode fiber , the optical path may be
up to 500 meters in length. With 50 micron core multi-mode fiber, the optical path may be up
to 750 meters in length. With 9 micron core single-mode fiber, the optical path may be up to
10 kilometers in length. Single- and multi-mode fibers may be used in the same system. The
optical fibers must be terminated with duplex LC connectors for connection with the DHU,
DEU’s and DRU’s.
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
DRU’s without having to install additional DHU’s. Each DHU is equipped with six optical
ports. If more than six DRU’s are required by the application, a DEU may be connected to one
of the DHU optical ports which expands that port to six ports. If still more optical ports are
required, then a second 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 DRU’s to the
DHU through the installation of DEU’s. The maximum number of DRU’s that can connected
to the DHU is limited only by the cumulative noise effect caused by antenna combining.
1.6 Power Requirements
The DHU and DEU are each powered by 120–240 Vac (50–60 Hz) power which is supplied
through a standard 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 a category 3 or 5 cable
terminated with male RJ-45 connectors.
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 a fault 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 a customer
provided external alarm system. This could be a local system or automatic call-out system.
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© 2002, ADC Telecommunications, Inc.
ADCP-75-136 • Issue 1 • November 2002
2 DIGTAL UNIT DESCRIPTION
This section provides a description of the functions and features provided by the units that comprise
the ICS system, a listing of terms used and their definition, and a table of specifications.
2.1 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 DRU’s or DEU’s
• Digitizing of the cellular forward path RF signal
• 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 a single composite digitized RF signal
• Conversion of the combined digitized RF signal to a composite RF signal
• DC power for powering the DRU’s
• Relay contact closures to provide alarm information to an external alarm system
3.5 INCHES
(89 mm)
17.2 INCHES
(437 mm)
FRONT PANEL
MOUNTING
BRACKET
(BOTH SIDES)
11.4 INCHES
(290 mm)
15.3 INCHES
(389 mm)
2.1.1 Primary Components
The DHU consists of two electronic circuit board assemblies, a power supply assembly, and a
fan assembly that are mounted within a powder-coated sheet metal enclosure. The metal
enclosure provides a mounting point for the electronic assemblies, serves as a heat sink, and
controls RF emissions. Except for the fan units and optical transceivers, the DHU components
are not field replaceable. The DHU is designed for use within a non-condensing indoor
environment such as inside a wiring 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.
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© 2002, ADC Telecommunications, Inc.
17267-A
CABLE MANAGEMENT
TRAY
Figure 2. Digital Host Unit
2.1.2 Mounting
ADCP-75-136 • Issue 1 • November 2002
The DHU may be used in both rack-mount and wall-mount applications. For rack mount
applications, a pair of reversible mounting brackets is provided that allow the DHU to be
mounted in either a 19-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 and the cable management tray
extends 3.9 inches (99 mm) beyond the front panel. For wall-mount applications, a pair 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.
2.1.3 Fault Detection and Alarm Reporting
The DHU detects internal circuitry faults and optical port faults. Various front panel Light
Emitting Diode (LED) indicators turn from green to red or yellow if a fault is detected or an
optical input is lost. A set of alarm contacts (normally open and normally closed) are also
provided for reporting an alarm to an external alarm system when a fault is detected. Both
major alarm (all fault conditions except high temperature) and minor alarm (high temperature
fault condition) contacts are provided.
2.1.4 RF Signal Connections
The RF signal connections with 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 (ancillary product).
The DHU requires a composite 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).
2.1.5 Optical and Electrical Connections
The optical and electrical connections with the DRU’s and DEU’s are supported by six optical and six
electrical ports. Each optical and electrical port includes a status LED, a small form factor LC-type optical
transceiver, an RJ-45 DC power jack, and a port enable/disab le switch. Each transceiver is color-coded to
identify whether it supports single-mode (blue) or multi-mode (black/beige) fiber. An optical port may be
connected to a DRU, a DEU, or not used. An electrical port may be connected to a DRU or not used.
Unused ports are disabled via the corresponding port enable/disab le 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/disab le switch activates all functions. The modular optical transceivers are available separately as
accessory items and are field replaceable.
2.1.6 Powering
The DHU is powered by 120–240 Vac (50–60 Hz) power which is supplied through a standard
three-conductor AC power cord. The power cord is provided with the DHU and is 98 inches
(2.5 meters ) long. A resetable circuit breaker/On-Off switch is provided at the unit front
panel. The switch applies power to the DHU internal power supply.
© 2002, ADC Telecommunications, Inc.
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ADCP-75-136 • Issue 1 • November 2002
2.1.7 Cooling
Continuous air flow for cooling is provided by dual fans mounted on the right side of the
housing. A minimum of 3 inches (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 a high temperature condition (>50º C/122º F) occurs. The fans may be field-replaced if
either fan fails.
2.1.8 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 described in Table 1
and indicated in Figure 3.
REF
No.
1
2 POWER
3 I/O
4 OK/NOK (Ports 1–6) Multi-colored LED
5 ON/OFF (Ports 1–6) I/O rocker switch
6 DC PWR (Ports 1–6) RJ-45 jack (female) Used for connecting a DRU cat 3 or 5 power
7 FIBER (Ports 1–6)
8 UNIT
9 OVERDRIVE
10 MAJOR
11 RF IN
12 RF OUT
USER INTERFACE
DESIGNATION
MINOR Screw-type terminal
Table 1. Digital Host Unit User Interface
DEVICE
Ground stud
3-wire AC power
cord connector
I/O rocker switch/
circuit breaker
(Red/Green/Yellow)
LC-type optical
transceiver
Multi-colored LED
(Red/Green/Yellow)
Multi-colored LED
(Red/Green/Yellow)
connector
(14–26 AWG)
N-type female RF
coaxial connector
N-type female RF
coaxial connector
Used for connecting a grounding cable to
the DHU chassis.
Used for connecting the AC power cord.
Provides AC power On/Off control and
AC power over current protection.
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)
Enables or disables corresponding
electrical and optical ports.
cable to the designated DC power jack.
Used for connecting each DEU or DRU
forward path and reverse path optical fibers
to the designated optical port.
Indicates if the DHU is normal or faulty.
(see Note)
Indicates when the forward path RF input
power is overdriving the DHU digitizing
circuitry. (see Note)
Used for connecting an external alarm
system to the DHU. Includes normally open
(NO), normally closed (NC), and common
(COM) wiring connections.
Used for connecting the forward path RF
coaxial cable to the DHU.
Used for connecting the reverse path RF
coaxial cable to the DHU.
FUNCTIONAL
DESCRIPTION
Note: A more detailed description of LED operation is provided in Section 5.
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© 2002, ADC Telecommunications, Inc.
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