Adc Digivance User manual

ADCP-75-114

Issue 2C

January 2002

1188201 Rev A

Digivance™Indoor Coverage Solution

Single Band Remote Interface Unit

(800 or 1900 MHz) User Manual

DRAFT

ADCP-75-114

Issue 2C

January 2002

Digivance™Indoor Coverage Solution

Single Band Remote Interface Unit

(800 and 1900 MHz) User Manual

1188201 Rev A

ADCP-75-114 •Issue 2C •January 2002 •Preface

Page ii

COPYRIGHT



2002,

ADC

Telecommunications,

Inc.

All

Rights

Reserved

Printed

in

the

U.S.A.

REVISION HISTORY

ISSUE DATE REASON FOR CHANGE

Issue

1

06/2001

Original

Issue

2

07/2001

Deleted

forward

path

OIP3

specification

from

Table

2,

Remote

Interface

Unit

Specifications.

Issue

2C

01/02

Updated

to

include

specifications

for

1900

MHz

unit.

TRADEMARK INFORMATION

ADC

is

a

registered

trademark

of

ADC

Telecommunications,

Inc.

Digivance

is

a

trademark

of

ADC

Telecommunications,

Inc.

TORX

is

a

registered

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

73475

(in

U.S.A.

or

Canada)

or

952-917-3475

(outside

U.S.A.

and

Canada),

or

by

e-mail

to

technical@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) 917-1717

ADCP-75-114 •Issue 2C •January 2002 •Preface

Page iii



2002,

ADC

Telecommunications,

Inc.

TABLE OF CONTENTS

Content Page

ABOUT THIS MANUAL ........................................................................v

RELATED PUBLICATIONS .....................................................................v

ADMONISHMENTS ..........................................................................v

GENERAL SAFETY PRECAUTIONS ............................................................... vi

STANDARDS CERTIFICATION .................................................................. vi

LIST OF ACRONYMS AND ABBREVIATIONS ......................................................... vi

1 DESCRIPTION ....................................................................... 1

1.1 Primary Functions and Components .................................................. 1

1.2 Mounting .................................................................... 2

1.3 Fault Detection and Alarm Reporting .................................................. 3

1.4 RF Signal Connections ........................................................... 3

1.5 RF Signal Level Adjustments ....................................................... 3

1.6 Powering .................................................................... 3

1.7 Cooling ..................................................................... 3

1.8 User Interface ................................................................. 4

1.9 Specifications ................................................................. 5

2 INSTALLATION ...................................................................... 6

2.1 Tools and Materials ............................................................. 6

2.2 Unpacking and Inspection ......................................................... 7

2.3 Mounting Procedure ............................................................. 7

2.4 Chassis Ground Connection ........................................................ 11

2.5 Coaxial Cable Connections ........................................................11

2.6 External Alarm System Connections .................................................. 13

2.7 AC Power Connection ............................................................15

3 OPERATION ........................................................................ 16

3.1 Tools and Materials .............................................................16

3.2 Turn-Up Unit and Verify Operation.................................................... 16

3.3 Forward Path Level Adjustment ..................................................... 17

3.4 Reverse Path Level Adjustment .....................................................18

4 MAINTENANCE ......................................................................20

4.1 Tools and Materials .............................................................20

4.2 Fault Detection and Alarm Reporting .................................................. 20

4.3 Fan Replacement............................................................... 21

5 CUSTOMER INFORMATION AND ASSISTANCE .................................................. 24

ADCP-75-114 •Issue 2C •January 2002 •Preface

Page iv



2002,

ADC

Telecommunications,

Inc.

This

page

intentionally

blank

ADCP-75-114 •Issue 2C •January 2002 •Preface

Page v



2002,

ADC

Telecommunications,

Inc.

ABOUT THIS MANUAL

This

publication

provides

a

description

of

the

Digivance

ICS

Remote

Interface

Unit

(RIU)

plus

instructions

for

installing

the

RIU.

An

overview

of

the

Digivance

ICS

and

a

complete

description

of

the

Digital

Host

Unit

(DHU),

Digital

Remote

Unit

(DRU)

and

the

Digital

Expansion

Unit

(DEU)

are

provided

in

the

Digivance

ICS

System

Installation

and

Operation

Manual

(See

section).

The

RIU

is

an

interface

device

that

is

used

in

conjunction

with

the

Digivance

ICS

product.

RELATED PUBLICATIONS

The

following

lists

and

their

publication

numbers.

Copies

of

these

publications

can

be

ordered

by

contacting

the

ADC

Technical

Assistance

Center

at

1-800-366-

3891,

extension

73475

(in

U.S.A.

or

Canada)

or

952-917-3475

(outside

U.S.A.

and

Canada).

Title/Description ADCP Number

Digivance

ICS

800

and

1900

Mhz

Systems

Installation

and

Operation

Manual

(systems

without

modular

optical

transceivers)

ADCP-75-110

Digivance

ICS

800

MHz

Single

or

Multi-Mode

Fiber

System

Installation

and

Operation

Manual

(systems

with

modular

optical

transceivers) ADCP-75-130

Digivance

ICS

Digital

Expansion

Unit

Installation

Instructions

ADCP-75-111

Digivance

ICS

Digital

Remote

Unit

Installation

Instructions

ADCP-75-112

Digivance

ICS

Local

Interface

Unit

User

Manual

ADCP-75-113

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.

ADCP-75-114 •Issue 2C •January 2002 •Preface

Page vi



2002,

ADC

Telecommunications,

Inc.

GENERAL SAFETY PRECAUTIONS

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.

STANDARDS CERTIFICATION

FCC:

This

equipment

complies

with

the

applicable

sections

of

Title

47

CFR

Parts 22 and 24.

UL/CUL:

This

equipment

complies

with

UL

and

CUL

1950

Standard

for

Safety

for

Information

Technology

Equipment,

including

Electrical

Business

Equipment.

IC

(Industry

Canada):

This

equipment

complies

with

IC

Certification

RSS-131.

LIST OF ACRONYMS AND ABBREVIATIONS

The

acronyms

and

abbreviations

used

in

this

manual

are

detailed

in

the

following

list:

A

Amperes

AC

Alternating

Current

CUL

Canadian

Underwriters

Laboratories

DC

Direct

Current

DEU

Digital

Expansion

Unit

DHU

Digital

Host

Unit

DRU

Digital

Remote

Unit

EIA

Electronic

Industries

Association

ESD

Electrostatic

Discharge

FCC

Federal

Communications

Commission

IC

Industry

Canada

ICS

Indoor

Coverage

Solution

LIU

Local

Interface

Unit

NOC

Network

Operations

Center

RIU

Remote

Interface

Unit

RF

Radio

Frequency

UL

Underwriters

Laboratories

V

Volts

VAC

Volts

Alternating

Current

VDC

Volts

Direct

Current

WECO

Western

Electric

Company

ADCP-75-114 • Issue 2C • January 2002

Page 1

©

2002,

ADC

Telecommunications,

Inc.

1 DESCRIPTION

This

section

provides

a

complete

description

of

the

Remote

Interface

Unit

(RIU).

1.1 Primary Functions and Components

The

RIU,

shown

in

Figure

1,

serves

as

the

interfacing

unit

between

a

remote

BTS

and

the

Digivance

DHU.

The

RIU

provides

the

following

basic

functions:

•

RF

interface

to

the

BTS

(through

donor

antenna)

and

DHU

•

Gain

adjustments

to

the

forward

and

reverse

path

RF

signal

•

Duplexing

of

the

forward

and

reverse

path

RF

signals

•

Alarm

reporting

to

an

external

alarm

system

16650-A

FRONT PANEL

CABLE MANAGEMENT

TRAY

MOUNTING

BRACKET

(BOTH SIDES)

3.5 INCHES

(89 mm)

11.4 INCHES

(290 mm)

3.9 INCHES

(99 mm)

17.2 INCHES

(437 mm)

13.6 INCHES

(345 mm)

Figure 1. Remote Interface Unit

A

remote

interface

between

the

DHU

and

the

cell

site

BTS

via

a

donor

antenna

requires

specific

RF

input

and

output

signal

levels

(within

normal

operating

range)

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

is

used

to

adjust

both

the

forward

and

reverse

path

RF

signal

levels.

In

the

forward

path,

the

RIU

provides

gain

adjustments

in

1

dB

increments

over

a

range

of

+9

to

+40

dB.

In

the

reverse

path,

the

RIU

provides

gain

adjustments

in

1

dB

increments

over

a

range

of

+28

to

+59

dB

(800

Mhz)

or

+33

to

+64

dB

(1900

MHz).

The

RIU

connects

to

a

directional

antenna

through

a

duplexer

(internal)

which

provides

separate

forward

and

reverse

path

connections

for

the

DHU.

In

the

forward

path

(downlink),

the

recommended

composite

maximum

RF

input

signal

level

at

the

DHU

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

(800

MHz)

or

+16

dBm

(1900

MHz).

ADCP-75-114 •Issue 2C •January 2002

Page 2

©

2002,

ADC

Telecommunications,

Inc.

In

the

reverse

path,

the

input

signal

level

received

at

the

DRU

antenna

will

vary

depending

on

the

path

loss

between

the

cell

phone

and

the

antenna

and

the

strength

of

the

cell

phone

signal.

When

the

level

of

the

reverse

path

(uplink)

signal

at

the

DRU

antenna

is

at

a

maximum,

the

composite

maximum

level

of

the

output

signal

from

the

DHU

will

be

–30

dBm.

Therefore,

it

will

generally

be

necessary

to

add

some

gain

to

the

reverse

path

signal

in

order

to

provide

the

output

RF

signal

level

required

at

the

donor

antenna.

A

block

diagram

showing

a

typical

remote

DHU

to

BTS

interface

is

provided

in

Figure

2.

DIRECTIONAL ANTENNA

TO/FROM CELL SITE BTS

16425-B

REMOTE

INTERFACE

UNIT

FORWARD

(DOWNLINK)

REVERSE

(UPLINK)

-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

+13 dBm FOR 800 MHz

+16 dBm FOR 1900 MHz

(COMPOSITE MAX)

Figure 2. Remote BTS Interface Block Diagram

The

RIU

consists

of

an

electronic

circuit

board

assembly,

power

supply,

duplexer,

and

linear

power

amplifier

that

are

mounted

within

a

powder-coated

sheet

metal

enclosure.

The

metal

enclosure

provides

a

mounting

point

for

the

electronic

components,

serves

as

a

heat

sink,

and

controls

RF

emissions.

Except

for

the

fan,

the

electronic

components

are

not

user

replaceable.

The

RIU

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

RIU

front

panel

for

convenient

access.

Cable

management

functions

for

the

power

and

coaxial

cables

are

provided

by

a

cable

management

tray

that

extends

outward

from

the

RIU

front

panel.

Two

versions

of

the

800

Mhz

RIU

are

available.

One

version

is

used

to

interface

with

an

A-band

BTS

and

the

other

version

is

used

to

interface

with

a

B-band

BTS.

Six

versions

of

the

1900

MHz

RIU

are

available,

one

version

for

each

of

the

six

1900

MHz

sub-bands.

The

appropriate

frequency

and

sub-band

are

clearly

marked

on

a

label

attached

to

the

RIU

cable

management

tray

1.2 Mounting

The

RIU

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

RIU

to

be

mounted

in

either

a

19-inch

or

23-inch

EIA

or

WECO

equipment

rack.

When

rack-mounted,

the

front

panel

of

the

RIU

is

flush

with

the

front

of

the

rack.

The

cable

management

tray

extends

3.9

inches

(99

mm)

beyond

the

front

panel.

Fasteners

are

provided

for

rack-mount

applications.

For

wall-mount

applications,

a

pair

of

holes

is

provided

in

the

cable

management

tray

which

allow

the

RIU

to

be

mounted

on

any

flat

vertical

surface.

The

mounting

brackets

may

also

be

removed

and

reinstalled

is

such

a

way

as

to

be

used

to

secure

the

RIU

to

a

flat

vertical

surface.

The

RIU

should

be

oriented

with

the

front

panel

facing

upward

when

wall-mounted.

The

fasteners

must

be

provided

by

the

installer

in

wall-mount

applications.

ADCP-75-114 •Issue 2C •January 2002

Page 3

©

2002,

ADC

Telecommunications,

Inc.

1.3 Fault Detection and Alarm Reporting

The

RIU

is

designed

to

detect

a

power

amplifier

over

or

under

current

condition

and

a

high

temperature

condition.

A

single

front

panel

Light

Emitting

Diode

(LED)

indicator

turns

from

green

to

red

or

yellow

if

a

fault

is

detected.

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

(power

amplifier

over/undercurrent

condition

or

power

failure)

and

minor

alarm

(high

temperature)

contacts

are

provided.

1.4 RF Signal Connections

The

RF

signal

connections

between

the

RIU

and

DHU

are

supported

through

a

pair

of

type

N

female

connectors

mounted

on

the

RIU

front

panel.

One

connector

is

used

for

connecting

the

forward

path

coaxial

cable

and

the

other

connector

is

used

for

connecting

the

reverse

path

coaxial

cable.

The

RF

signal

connection

between

the

RIU

and

the

donor

antenna

is

supported

through

a

single

type

N

female

connector.

The

single

connector

is

used

for

connecting

the

coaxial

jumper

cable

that

links

the

RIU

to

the

donor

antenna.

The

DHU

cannot

be

connected

directly

to

a

donor

antenna

and

requires

an

interface

device

such

as

the

RIU.

1.5 RF Signal Level Adjustments

The

RIU

is

equipped

with

two

digital

attenuators

for

adjusting

the

signal

levels

of

the

forward

and

reverse

path

RF

signals.

The

attenuators

provide

an

attenuation

adjustment

range

of

0

to

31

dB

and

can

be

set

in

1

dB

increments.

In

the

forward

path,

this

range

provides

a

maximum

gain

of

+40

dB

(attenuator

set

to

0)

or

a

minimum

gain

of

+9

dB

(attenuator

set

to

31

dB).

In

the

reverse

path

for

800

MHz

units,

this

range

provides

a

maximum

gain

of

+59

dB

(attenuator

set

to

0)

or

a

minimum

gain

of

+28

dB

(attenuator

set

to

31

dB).

In

the

reverse

path

for

1900

MHz

units,

this

range

provides

a

maximum

gain

of

+64

dB

(attenuator

set

to

0)

or

a

minimum

gain

of

+33

dB

(with

attenuator

set

to

31

dB).

Each

attenuator

is

adjustable

by

means

of

two

rotary

switches

which

are

mounted

behind

the

RIU

front

panel.

Access

to

each

rotary

switch

is

through

a

small

hole.

A

small

screwdriver

is

required

to

adjust

the

switch

setting.

Turning

each

switch

adds

or

removes

attenuation

and

therefore

adjusts

the

signal

level

of

the

specified

signal

path.

1.6 Powering

The

RIU

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

RIU

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

RIU

internal

power

supply.

1.7 Cooling

Continuous

air

flow

for

cooling

is

provided

by

a

fan

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

RIU

for

air

intake

and

exhaust.

An

alarm

is

provided

that

indicates

if

a

high

temperature

condition

(>58º

C/136º

F)

occurs.

The

fan

may

be

field-replaced

if

it

fails.

ADC Digivance User manual

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