Adc Digivance User manual

ADCP-75-114

Issue CJune 2001

Digivance

Indoor Coverage Solution

800 Mhz Remote Interface Unit User Manual

DRAFT

1145993

FCC ID: F8I-DVICSRIU800

ADCP-75-114 •Issue C •June 2001 •Preface

Page ii

COPYRIGHT



2001,

ADC

Telecommunications,

Inc.

All

Rights

Reserved

Printed

in

the

U.S.A.

REVISION HISTORY

ISSUE DATE REASON FOR CHANGE

Issue

C

06/2001

Original

TRADEMARK INFORMATION

ADC

and

ADC

Telecommunications

are

registered

trademarks

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

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-75-114 •Issue C •June 2001 •Preface

Page iii



2001,

ADC

Telecommunications,

Inc.

TABLE OF CONTENTS

Content Page

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 ...................................................................... 7

2.1 Tools and Materials ............................................................. 7

2.2 Unpacking and Inspections ........................................................ 7

2.3 Mounting Procedure............................................................. 8

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

2.5 Coaxial Cable Connections ........................................................12

2.6 External Alarm System Connections ..................................................14

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

3 OPERATION ........................................................................17

3.1 Tools and Materials .............................................................17

3.2 Turn-Up Unit and Verify Operation....................................................17

3.3 Forward Path Level Adjustment .....................................................18

3.4 Reverse Path Level Adjustment .....................................................21

4 MAINTENANCE ......................................................................22

4.1 Tools and Materials .............................................................22

4.2 Fault Detection and Alarm Reporting..................................................22

4.3 Fan Replacement...............................................................23

5 CUSTOMER INFORMATION AND ASSISTANCE..................................................25

ADCP-75-114 •Issue C •June 2001 •Preface

Page iv



2001,

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

Installation

and

Operation

Manual

(ADCP-75-110).

The

RIU

is

an

interface

device

that

is

used

in

conjunction

with

the

Digivance

ICS

product.

RELATED PUBLICATIONS

Listed

below

are

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

Installation

and

Operation

Manual

ADCP-75-110

Provides

an

overview

of

the

Digivance

ICS,

a

complete

description

of

the

DHU,

DRU,

and

DEU,

system

planning

and

engineering

guidelines,

DHU

installation

instructions,

system

turn-up

and

test

procedures,

and

system

troubleshooting

and

maintenance

procedures.

Digivance

ICS

Digital

Expansion

Unit

Installation

Instructions

ADCP-75-111

Provides

a

description

of

the

DEU

and

procedures

for

installing

the

DEU.

Digivance

ICS

Digital

Remote

Unit

Installation

Instructions

ADCP-75-112

Provides

a

description

of

the

DRU

and

procedures

for

installing

the

DRU.

Digivance

ICS

Local

Interface

Unit

User

Manual

ADCP-75-113

Provides

a

description

of

the

LIU

and

procedures

for

installing

the

LIU.

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.

ADCP-75-114 •Issue C •June 2001 •Preface

Page v



2001,

ADC

Telecommunications,

Inc.

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

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

Part

22.

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

ADCP-75-114 •Issue C •June 2001 •Preface

Page vi



2001,

ADC

Telecommunications,

Inc.

RF

Radio

Frequency

UL

Underwriters

Laboratories

V

Volts

VAC

Volts

Alternating

Current

VDC

Volts

Direct

Current

WECO

Western

Electric

Company

ADCP-75-114 •Issue C• June 2001

Page 1

©

2001,

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

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

RIU.

The

RIU

provides

adjustable

gain

in

both

the

RF

forward

and

reverse

paths.

The

RIU

connects

to

a

directional

antenna

through

a

duplexer

which

provides

separate

forward

and

reverse

path

connections

for

the

DHU.

In

the

forward

path

(downlink),

the

RIU

provides

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

is

+13

dBm

which

is

the

maximum

allowed.

ADCP-75-114 •Issue C •June 2001

Page 2

©

2001,

ADC

Telecommunications,

Inc.

In

the

reverse

path,

the

required

RF

output

signal

level

to

the

donor

antenna

will

vary

depending

on

the

DRU

path

loss.

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

will

generally

be

necessary

to

add

some

gain

to

the

reverse

path

signal

in

order

to

achieve

the

required

output

signal

level

at

the

donor

antenna.

A

block

diagram

showing

a

typical

remote

DHU

to

BTS

interface

is

provided

in

Figure

2.

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.

DIRECTIONAL

ANTENNATO/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 2. Remote BTS Interface Block Diagram

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.

The

frequency

(800

Mhz)

and

band

(A

or

B)

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 C •June 2001

Page 3

©

2001,

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.

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.

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

(with

attenuator

set

to

0)

or

a

minimum

gain

of

+9

dB

(with

attenuator

set

to

31

dB).

In

the

reverse

path,

this

range

provides

a

maximum

gain

of

+59

dB

(with

attenuator

set

to

0)

or

a

minimum

gain

of

+28

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.

ADCP-75-114 •Issue C •June 2001

Page 4

©

2001,

ADC

Telecommunications,

Inc.

1.8 User Interface

The

RIU

user

interface

consists

of

the

various

connectors,

switches,

terminals,

and

LED

that

are

provided

on

the

RIU

front

panel.

The

RIU

user

interface

points

are

indicated

in

Figure

3

and

described

in

Table

1.

NOTE: SHOWN WITHOUT

CABLE MANAGEMENT TRAY

(3) AC POWER CORD

CONNECTOR (8) ALARM LED

INDICATOR (9) ALARM

CONNECTOR

(1) ANTENNA

CONNECTOR (5) FORWARD LEVEL

ADJUSTMENT

SWITCHES

(2) AC POWER

ON/OFF SWITCH (6) FORWARD

RF OUTPUT

CONNECTOR

(7) REVERSE

RF INPUT

CONNECTOR

(4) REVERSE LEVEL

ADJUSTMENT

SWITCHES

16651-A

Figure 3. Remote Interface Unit User Interface

Table 1. Remote Interface Unit User Interface

REF

No. USER INTERFACE

DESIGNATION DEVICE FUNCTIONAL DESCRIPTION

1

ANTENNA

N-type

female

RF

coaxial

connector

Used

for

connecting

the

donor

antenna

coaxial

cable.

2

I/O

rocker

switch/

circuit

breaker

Provides

AC

power

On/Off

control

and

AC

power

over

current

protection.

3

POWER

3-wire

AC

power

cord

connector

Used

for

connecting

the

AC

power

cord.

4

REV

LEVEL

ADJ

MSB

LSB

Rotary

switch

Used

to

adjust

the

reverse

path

RF

signal

level

by

adding

or

removing

attenuation.

5

FWD

LEVEL

ADJ

MSB

LSB

Rotary

switch

Used

to

adjust

the

forward

path

RF

signal

level

by

adding

or

removing

attenuation.

6

FORWARD

OUT

N-type

female

RF

coaxial

connector

Used

for

connecting

the

RIU

to

DHU

forward

path

coaxial

cable.

7

REVERSE

IN

N-type

female

RF

coaxial

connector

Used

for

connecting

the

DHU

to

RIU

reverse

path

coaxial

cable.

8

ALARMS

Multi-colored

LED

(Red/Green/Yellow)

Indicates

if

the

RIU

is

normal

or

faulty.

(see

Section

3

for

a

detailed

description)

9

MINOR

MAJOR

Screw-type

terminal

connector

(14–26

AWG)

Used

for

connecting

the

RIU

to

an

external

alarm

system.

Includes

normally

open

(NO),

normally

closed

(NC),

and

common

(COM)

wiring

connections.

ADCP-75-114 •Issue C •June 2001

Page 5

©

2001,

ADC

Telecommunications,

Inc.

1.9 Specifications

The

specifications

for

the

RIU

are

provided

in

Table

2.

All

specifications

apply

after

a

five

minute

warm-up

period.

Table 2. Remote Interface Unit Specifications

PARAMETER SPECIFICATION REMARKS

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

RF Forward Path

A-band

frequency

range

869

to

891.5

MHz

B-band

frequency

range

880-894

MHz

RF

Gain

+9

to

+40

dB

Adjustable

in

1

dB

steps

Gain

Variation

±

1.5

dB

Over

frequency,

temperature,

and

unit-to-unit.

Gain

stepsize

accuracy

±

(0.2

+

3%

of

gain

setting

in

dB)

dB

Output

power

–20

dBm

composite

maximum

to

Digivance

ICS

input

With

proper

attenuation

setting

Input

level

–29

dBm

composite

maximum

To

drive

Digivance

ICS

DHU

VSWR

1.5:1

or

better,

both

ports

IP3

>

+30

dBm

RF Reverse Path

A-band

frequency

range

824

to

835

and

845

to

846.5

MHz

B-band

frequency

range

835

to

849

MHz

RF

Gain

+29

to

+59

dB

Adjustable

in

1

dB

steps

Gain

Variation

±1.5

dB

Over

frequency,

temperature,

and

unit-to-unit.

Gain

stepsize

accuracy

±

(0.2

+

3%

of

gain

setting

in

dB)

dB

Output

power

+

29

dBm

composite

maximum

When

driven

with

Digivance

ICS

DHU

Input

level

–30

dBm

composite

maximum

From

Digivance

ICS

DHU

output

VSWR

1.5:1

or

better,

both

ports

IP3

>

+46

dBm

Continued

ADCP-75-114 •Issue C •June 2001

Page 6

©

2001,

ADC

Telecommunications,

Inc.

Table 2. Remote Interface Unit Specifications (Continued)

PARAMETER SPECIFICATION REMARKS

Physical

Weight

20.2

lbs

(8.7

kg)

Dimensions

(H×W×D)

3.5

×

19.0

×

17.25

Inches

(89

×

482

×

438

mm)

Color

Putty

white

RF

connections

Type

N

Female

Alarm

connection

Screw

terminals

(14–26

AWG)

NO,

NC,

and

COM

Reliability

MTBF

80,000

hours

Electrical

Power

source

120–240

VAC,

50–60

Hz

AC

Connection

IEC

320

Male

Power

consumption

250

W

Maximum

Current

rating

85–250

VAC,

2

Amp

input

Donor Antenna

Type

Directional

Gain

15

dB

or

greater

ADCP-75-114 •Issue C •June 2001

Page 7

©

2001,

ADC

Telecommunications,

Inc.

2 INSTALLATION

This

section

provides

the

installation

procedures

for

the

RIU.

Installation

of

the

various

Digivance

ICS

units

may

proceed

separately

from

the

installation

of

the

RIU.

2.1 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

• Phillips

screwdriver

(#2)

• TORX

screwdriver

(T20)

• Wire

cutters

• Wire

stripper

• Tool

kit

for

attaching

N-type

male

connectors

to

coaxial

cable

• Drill

and

assorted

drill

bits

(wall-mount

installations

only)

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

3

or

5

cable

(for

external

alarm

connections)

• #18

AWG

(1.00

mm)

insulated

stranded

copper

wire

(for

chassis

grounding

wire)

• Ring

terminal

for

#18

wire

(for

chassis

ground

wire

connection)

• High

performance,

flexible,

low

loss

50-ohm

coaxial

cable

• N-type

male

connectors

• Wire

ties

2.2 Unpacking and Inspection

This

sub-section

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

RIU:

1.

Open

the

shipping

carton

and

carefully

unpack

the

RIU

from

the

protective

packing

material.

2.

Check

the

RIU

for

broken

or

missing

parts.

If

there

are

any

damages,

contact

ADC

(see

section

5

at

the

end

of

this

manual)

for

an

RMA

(Return

Material

Authorization)

and

to

reorder

if

replacement

is

required.

ADCP-75-114 •Issue C •June 2001

Page 8

©

2001,

ADC

Telecommunications,

Inc.

2.3 Mounting Procedure

The

RIU

may

be

either

rack-mounted

or

wall-mounted.

Of

the

procedures

that

follow,

use

whichever

procedure

is

appropriate

for

the

installation.

2.3.1 Rack-Mount Installation

The

RIU

may

be

mounted

in

either

a

19-inch

or

23-inch

EIA

or

WECO

equipment

rack.

Both

US

standard

and

metric

machine

screws

are

included

for

rack

mounting

the

RIU.

When

loading

the

RIU

in

a

rack,

make

sure

the

mechanical

loading

of

the

rack

is

even

to

avoid

a

hazardous

condition

such

as

a

severely

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

RIU

is

50º

C

(122º

F).

Allow

sufficient

air

circulation

or

space

between

units

when

the

RIU

is

installed

in

a

multi-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

a

wet

location

or

during

a

lightning

storm.

Use

the

following

procedure

to

install

the

RIU

in

the

equipment

rack:

1.

The

RIU

is

shipped

with

the

mounting

brackets

installed

for

19-inch

rack

installations.

If

mounting

the

RIU

in

a

19-inch

rack,

proceed

to

step

4.

If

mounting

the

RIU

in

a

23-inch

rack,

proceed

to

step

2.

Remove

both

mounting

brackets

from

the

RIU

(requires

TORX

screwdriver

with

T20

bit).

3.

Reinstall

both

mounting

brackets

so

the

long

side

of

the

bracket

is

flush

with

the

RIU

front

panel

as

shown

in

Figure

4.

Use

the

screws

removed

in

step

2

to

re-attach

the

brackets

to

the

RIU

enclosure.

16487-B

REMOVE AND REINSTALL MOUNTING

BRACKETS AS SHOWN FOR

INSTALLATION IN 23-INCH RACKS

Figure 4. Installing the Mounting Brackets for 23-Inch Rack Installations

ADCP-75-114 •Issue C •June 2001

Page 9

©

2001,

ADC

Telecommunications,

Inc.

4.

Position

the

RIU

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

x

10

screws,

whichever

is

appropriate)

as

shown

in

Figure

5.

Note:

Provide

a

minimum

of

3

inches

(76

mm)

of

clearance

space

on

both

the

left

and

right

sides

of

the

RIU

for

air

intake

and

exhaust.

16483-B

Figure 5. RIU Rack Mount Installation

2.3.2 Wall-Mount Installation

The

RIU

may

be

mounted

from

any

flat

vertical

surface.

It

is

recommended

that

a

backer

board

such

as

3/4-inch

plywood

be

applied

over

the

mounting

surface

to

provide

a

secure

base

for

attaching

the

RIU.

Two

mounting

holes

are

provided

in

the

cable

management

tray

for

securing

the

RIU

to

the

mounting

surface.

In

addition,

the

mounting

brackets

may

be

removed

and

then

reinstalled

in

such

a

way

that

they

can

be

used

for

securing

the

RIU

to

the

mounting

surface.

Either

method

for

mounting

may

be

used

at

the

discretion

of

the

installer.

The

fasteners

must

be

provided

by

the

installer.

Use

the

following

procedure

to

wall-mount

the

RIU:

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.

1.

Obtain

the

appropriate

fasteners

(lag

bolts,

screw

anchors,

etc.)

for

securing

the

RIU

to

the

mounting

surface.

2.

If

the

mounting

brackets

will

be

used

to

secure

the

RIU

to

the

mounting

surface,

proceed

to

step

3.

If

the

mounting

brackets

will

not

be

used

to

secure

the

RIU

to

the

mounting

surface,

skip

steps

3

and

4

and

proceed

to

step

5.

ADCP-75-114 •Issue C •June 2001

Page 10

©

2001,

ADC

Telecommunications,

Inc.

3.

Remove

both

mounting

brackets

from

the

RIU

(requires

TORX

screwdriver

with

T20

bit).

4.

Reinstall

both

mounting

brackets

so

the

short

side

of

the

bracket

is

flush

with

the

bottom

of

the

RIU

as

shown

in

Figure

6.

Use

the

screws

removed

in

step

3

to

re-attach

the

brackets

to

the

RIU

enclosure.

16484-B

Figure 6. Installing the Mounting Brackets for Wall-Mount Installation

5.

Position

the

RIU

on

the

mounting

surface

in

the

specified

location

(per

the

system

design)

with

the

front

panel

facing

up

as

shown

in

Figure

7.

Note:

Provide

a

minimum

of

3

inches

(76

mm)

of

clearance

space

on

both

the

left

and

right

sides

of

the

RIU

for

air

intake

and

exhaust.

6.

Using

the

RIU

as

a

template,

mark

the

location

of

the

mounting

holes

on

the

mounting

surface.

Note:

The

mounting

holes

in

the

RIU

cable

management

tray

are

spaced

11-21/32

inches

(296

mm)

center

to

center.

7.

Set

the

RIU

aside

and

then

drill

appropriately

sized

holes

in

the

mounting

surface

for

the

fasteners.

8.

If

using

only

the

mounting

brackets

to

secure

the

RIU

to

the

mounting

surface,

skip

step

9

and

proceed

to

step

10.

If

using

the

cable

management

tray

mounting

holes

to

secure

the

RIU

to

the

mounting

surface,

proceed

to

step

9.

Partially

install

the

fasteners

for

the

cable

management

tray

mounting

holes.

Leave

the

head

of

each

fastener

protruding

about

1/4

inch

(6

mm)

from

the

mounting

surface.

10.

Hang

the

RIU

from

the

fasteners

installed

in

step

9

or

position

the

RIU

for

installation

if

using

only

the

mounting

brackets.

11.

Install

and

securely

tighten

all

fasteners.

ADCP-75-114 •Issue C •June 2001

Page 11

©

2001,

ADC

Telecommunications,

Inc.

16486-B

BACKER BOARD SUCH

AS 3/4-INCH PLYWOOD

Figure 7. RIU Wall-Mount Installation

2.4 Chassis Ground Connection

A

stud

is

provided

on

the

rear

side

of

the

chassis

for

connecting

a

grounding

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

a

length

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

a

ring

terminal.

3.

Locate

the

chassis

ground

stud

at

the

rear

of

the

RIU

as

shown

in

Figure

8.

4.

Attach

the

ring

end

of

the

wire

to

the

chassis

ground

stud

(see

Figure

8).

5.

Route

the

free

end

of

the

chassis

grounding

wire

to

an

approved

(per

local

code

or

practice)

earth

ground

source.

ADCP-75-114 •Issue C •June 2001

Page 12

©

2001,

ADC

Telecommunications,

Inc.

16169-A

Figure 8. Chassis Ground Stud

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.

2.5 Coaxial Cable 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.

2.5.1 Forward and Reverse Path Coaxial Cable Connections

Use

the

following

procedure

to

install

the

forward

and

reverse

path

coaxial

cables

that

link

the

RIU

to

the

DHU:

1.

Locate

the

forward

and

reverse

path

coaxial

cables

that

were

routed

to

the

RIU

from

the

DHU.

Note:

The

procedures

for

routing

the

reverse

and

forward

path

coaxial

cables

from

the

DHU

to

the

RIU

and

for

connecting

the

cables

to

the

DHU

are

covered

in

the

Digivance

ICS

Installation

and

Operation

Manual

(ADCP-75-110)

which

is

provided

with

the

DHU.

2.

Terminate

each

cable

with

a

type

N

male

connector

following

the

connector

supplier’s

recommendations.

3.

Connect

the

forward

path

cable

to

the

FORWARD

OUT

connector

on

the

RIU

front

panel

as

shown

in

Figure

9.

ADCP-75-114 •Issue C •June 2001

Page 13

©

2001,

ADC

Telecommunications,

Inc.

16652-A

FORWARD OUT

CONNECTOR

REVERSE IN

CONNECTOR

TYPE-N MALE CONNECTOR

Figure 9. FORWARD OUT and REVERSE IN Coaxial Cable Connections

4.

Connect

the

reverse

path

cable

to

the

REVERSE

IN

connector

on

the

RIU

front

panel

as

shown

in

Figure

9.

5.

Dress

and

secure

cables

at

the

RIU.

2.5.2 Antenna Coaxial Cable Connection

Use

the

following

procedure

to

install

the

coaxial

cable

that

links

the

RIU

to

the

donor

antenna:

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.

1.

Obtain

the

required

length

of

high

performance,

flexible,

low

loss

50-ohm

coaxial

communications

cable

for

the

antenna

coaxial

connection.

2.

Route

the

coaxial

cable

between

the

RIU

and

the

donor

antenna

(per

system

design)

and

cut

to

the

required

length.

Allow

sufficient

slack

for

dressing

and

organizing

cables

at

the

RIU

and

antenna.

3.

Terminate

each

cable

end

with

a

type

N

male

connector

following

the

connector

supplier’s

recommendations.

4.

Connect

the

RIU

end

of

the

antenna

cable

to

the

ANTENNA

connector

on

the

RIU

front

panel

as

shown

in

Figure

10.

5.

Connect

the

antenna

end

of

the

antenna

cable

to

the

donor

antenna.

6.

Dress

and

secure

cables

at

the

RIU

and

donor

antenna.

ADCP-75-114 •Issue C •June 2001

Page 14

©

2001,

ADC

Telecommunications,

Inc.

16653-A

ANTENNA

CONNECTOR

TYPE-N MALE CONNECTOR

Figure 10. RIU Antenna Cable Connection

2.6 External Alarm System Connections

The

alarm

interface

between

the

RIU

and

an

external

alarm

system

is

supported

by

a

six-

terminal

plug

(with

screw-type

terminals)

that

connects

to

a

receptacle

on

the

RIU

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.

A

ADC Digivance User manual

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