Corning Optical Communication Wireless MA1000 User Manual

MobileAccess™ 1000/1200

Installation and Configuration Guide

Version 1.0
May 2003

MobileAccess 1000/1200 User’s and Installation Guide

Preface MobileAccess™ 1000/1200

MobileAccess Ltd. Vienna, Virginia Tel: [phone]

MobileAccess Ltd. Lod, Israel Tel: [phone]

http://www.mobileaccess.com

Email: [e-mail]

Copyright © 2003 MobileAccess.

All rights reserved. Printed in Israel.

© 2003 by MobileAccess

This document contains confidential and proprietary information of MobileAccess
and may not be copied, transmitted, stored in a retrieval system or reproduced in
any format or media, in whole or in part, without the prior written consent of
MobileAccess. Information contained in this document supersedes any previous
manuals, guides, specifications, data sheets or other information that may have
been provided or made available to the user. This document is provided for
informational purposes only, and MobileAccess does not warrant or guarantee the
accuracy, adequacy, quality, validity, completeness or suitability for any purpose of
the information contained in this document. MobileAccess reserves the right to make
updates, improvements and enhancements to this document and the products to
which it relates at any time without prior notice to the user. MOBILEACCESS
MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT
LIMITATION, THOSE OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, WITH RESPECT TO THIS DOCUMENT OR ANY
INFORMATION CONTAINED HEREIN.

TRADEMARK ACKNOWLEDGEMENT

MobileAccessTM, RF2MobileAccess, and MobileAccessTM are registered trademarks
of MobileAccess. This document contains other trademarks, trade names and
service marks of MobileAccess and other organizations, all of which are the property
of their respective owners.

II MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Preface

POLICY FOR WARRANTEE AND REPAIR

MobileAccess tests and inspects all its products to verify their quality and reliability.
MobileAccess uses every reasonable precaution to ensure that each unit meets their
declared specifications before shipment. Customers should advise their incoming inspection,
assembly, and test personnel about the precautions required in handling and testing our
products. Many of these precautions can be found in this manual.

The products are covered by the following warranties:

General Warranty

MobileAccess warrants to the original purchaser all standard products sold by MobileAccess
to be free of defects in material and workmanship for one (1) year from date of shipment from
MobileAccess. During the warranty period, MobileAccess will repair or replace any product
that MobileAccess proves to be defective. This warranty does not apply to any product that
has been subject to alteration, abuse, improper installation or application, accident, electrical
or environmental over-stress, negligence in use, storage, transportation or handling.

Specific Product Warranty Instructions

All MobileAccess products are warranted against defects in workmanship, materials and
construction, and to no further extent. Any claim for repair or replacement of units found to be
defective on incoming inspection by a customer must be made within 30 days of receipt of
shipment, or within 30 days of discovery of a defect within the warranty period.

RETURNS

This warranty is the only warranty made by MobileAccess and is in lieu of all other
warranties, expressed or implied. MobileAccess sales agents or representatives are not
authorized to make commitments on warranty returns.

In the event that it is necessary to return any product against above warranty, the
following procedure shall be followed:

1. Return authorization is to be received from MobileAccess prior to returning any
unit. Advise MobileAccess of the model, serial number, and discrepancy. The
unit may then be forwarded to MobileAccess, transportation prepaid. Devices
returned collect or without authorization may not be accepted.

2. Prior to repair, MobileAccess will advise the customer of our test results and any
charges for repairing customer-caused problems or out-of-warranty conditions
etc.

3. Repaired products are warranted for the balance of the original warranty period,
or at least 90 days from date of shipment.

MobileAccess 1000/1200 User’s and Installation Guide III

Preface MobileAccess™ 1000/1200

LIMITATIONS OF LIABILITIES

MobileAccess's liability on any claim, of any kind, including negligence for any loss or
damage arising from, connected with, or resulting from the purchase order, contract,
quotation, or from the performance or breach thereof, or from the design, manufacture, sale,
delivery, installation, inspection, operation or use of any equipment covered by or furnished
under this contact, shall in no case exceed the purchase price of the device which gives rise
to the claim.

EXCEPT AS EXPRESSLY PROVIDED HEREIN, MOBILEACCESS MAKES NO WARRANTY, EXPRESSED OR
IMPLIED, WITH RESPECT TO ANY GOODS, PARTS AND SERVICES PROVIDED IN CONNECTION WITH THIS
AGREEMENT INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE. MOBILEACCESS SHALL NOT BE LIABLE FOR ANY OTHER
DAMAGE INCLUDING, BUT NOT LIMITED TO, INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF OR IN CONNECTION WITH FURNISHING OF GOODS, PARTS AND SERVICE HEREUNDER, OR THE
PERFORMANCE, USE OF, OR INABILITY TO USE THE GOODS, PARTS AND SERVICE.

REPORTING DEFECTS

The units were inspected before shipment and found to be free of mechanical and electrical
defects.

Examine the units for any damage that may have been caused in transit. If damage is
discovered, file a claim with the freight carrier immediately. Notify MobileAccess as soon as
possible.

NOTE: Keep all packing material until you have completed the inspection

WARNING:

this product must be fixed mounted on indoor permanent structures, providing a separation
distance of at least 20 cm from all persons during normal operation.

WARNING:

WARNING:

minimum separation distance of 20 cm or more from all persons and must not be co-located
with any other antenna for meeting RF exposure requirements.

To comply with FCC RF exposure compliance requirements, antennas used for

Antenna gain should not exceed 10dB.

Each individual antenna used for this transmitter must be installed to provide a

IV MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Preface

WARNING:

data. The laser unit has the following output characteristics:

- Optical output power (mW): ≤3.0

- Wavelength (nM): 1310 ± 10

The MobileAccessTM system uses an optical laser for transmitting voice and

WARNING:

in class I as defined by IEC 60825-1, 21 CFR 1040.10 and 1040.11 except for deviations
pursuant to laser notice no. 50 (July 26, 2001). Use either an infrared viewer, optical power
meter or fluorescent screen for optical output verification.

Applying power to the MobileAccess™ creates a laser energy source operating

WARNING:

specified herein may result in hazardous radiation exposure.

The use of controls or adjustments or performance procedures other than those

WARNING:

Compliance with RF safety requirements:
MobileAccess™ products have no inherent significant rf radiation.
The Rf level on the down link is very low at the remote hub unit downlink ports. Therefore,

there is no dangerous rf radiation when the antenna is not connected.
The design of the antenna installation needs to be implemented in such a way so as to

ensure rf radiation safety levels and non- environmental pollution during operation.

ATTENTION:

•

protective cover. Do not allow any dirt and/or foreign material to get on the optical
connector bulkheads.

• The optical fiber jumper cable bend radius is 3 cm. Smaller radii can cause
excessive optical loss and/or fiber breakage.

• For proper system performance only use cables equipped with
SC/APC connectors to connect to the MobileAccess MobileAccesstm system.

To avoid damaging your product, please observe the following:

Always keep the optical connector covered. Use the fiber optic cable or a

MobileAccess 1000/1200 User’s and Installation Guide V

Preface MobileAccess™ 1000/1200

C

ERTIFICATION

MobileAccess products have met the approvals of the following certifying organizations:

ISO 9001

For Europe

For US

0681

FCC 47 CFT part 15,22,24,90
FDA-CDRH
UL

For Canada

RSS-118, RSS-119, RSS-133« .

SPECIFICATIONS

Maximum ambient operating temperature: 50° C

Maximum ambient temperature in a rack: 50° C

VI MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Preface

Preface

This user guide provides all the information necessary to…

User Guide Organization

Chapter 1. Introduction. About MobileAccess 1000/1200 .
Chapter 2.
Chapter 3.
Chapter 4.
Appendix A.

MobileAccess 1000/1200 User’s and Installation Guide VII

Preface MobileAccess™ 1000/1200

Revision History

The revision history for this document is shown in Table 1-1.

Table 1-1: Revision history

Version Date Description

1.0 April 2003 Initial version.

Terms and definitions

Table 1-2: Terms and Definitions

Term Definition

BSC Base Station Controller

BTS Base Station Transceiver Subsystem

VIII MobileAccess 1000/1200 User’s and Installation Guide

Table of Contents

Chapter 1. Introduction 1

1.1 About MobileAccess 1000/1200™ .........................................................................................................................1

1.2 Applications ...........................................................................................................................................................2

1.3 Base Unit to Remote Unit Configuration Options...................................................................................................3

1.4 MobileAccess Models............................................................................................................................................4

1.5 System Description................................................................................................................................................5

Chapter 2. Module Description..........................................................................................................................1

2.1 Radio Interface Unit (RIU)......................................................................................................................................1

2.1.1 General.......................................................................................................................................................1

2.1.2 Front and Rear Panel Descriptions.............................................................................................................2

2.2 Base Unit...............................................................................................................................................................3

2.2.1 General.......................................................................................................................................................3

2.2.2 Base Unit Front and Rear Panels...............................................................................................................4

2.2.3 Remote Hub Unit (RHU).............................................................................................................................6

2.2.3.1 MobileAccess 1000.....................................................................................................................6

2.2.3.2 MobileAccess 1200.....................................................................................................................7

2.2.4 MobileAccess 410/430 Controller...............................................................................................................8

Chapter 3. Installation Procedure ...................................................................................................................10

3.1 General................................................................................................................................................................11

3.2 About Infrastructure Installation...........................................................................................................................14

3.3 Power Supply for the MobileAccess™ .................................................................................................................15

3.4 Rack Installation ..................................................................................................................................................17

3.5 Connecting Each of the MobileAccess Elements.................................................................................................18

3.5.1 Base Unit Connections.............................................................................................................................18

3.5.2 Base Unit to BTS Side Connections.........................................................................................................19

3.5.2.1 Connections via Passive RF Interface......................................................................................19

3.5.2.2 Connections via Radio Interface Unit (RIU)..............................................................................21

3.5.3 Base Unit to RHU connections.................................................................................................................22

3.6 Remote Hub Units (RHUs) 1000..........................................................................................................................23

3.7 RHU 1200............................................................................................................................................................23

3.7.1 Remote Hub Unit 1200 Add-on Unit.........................................................................................................23

3.7.2 Remote Hub Unit 1200 Standalone..........................................................................................................25

3.8 Controller Connections ........................................................................................................................................26

3.9 Power Supply Connections..................................................................................................................................26

Chapter 4. Adjustments Procedure.................................................................................................................27

4.1.1 Auto-detect...............................................................................................................................................27

4.1.2 Downlink Adjustments..............................................................................................................................29

4.1.3 Main or Independent Building with RIU Adjustment..................................................................................29

4.1.4 First Band Adjustment ..............................................................................................................................29

4.1.4.1 First Band (any of the bands)....................................................................................................29

4.1.4.2 First band downlink adjustment ................................................................................................30

MobileAccess 1000/1200 User’s and Installation Guide

Preface MobileAccess™ 1000/1200

Appendix A. Frequently Asked Questions........................................................................................................ 31

Appendix B. : Link Measurements Form......................................................................................................... 33

Appendix C. Fiber Optic Cable Instructions..................................................................................................... 34

Fiber Optic Cable................................................................................................................................................ 34

Appendix D. Fiber Optic Cable – Terms............................................................................................................ 37

Optical Fiber........................................................................................................................................................ 37

Connecting Fiber Optic Cable............................................................................................................................. 39

Fiber Optic Cable Bending Loss.............................................................................................................. 39

Coupler 39

Appendix E. Optical Test Procedure................................................................................................................. 40

Fiber Optic Cable Test........................................................................................................................................ 40

MobileAccess System Characteristics................................................................................................................ 40

Test Equipment................................................................................................................................................... 41

Optical Insertion Loss Measurement Test........................................................................................................... 41

Method #1: Two Point Test...................................................................................................................... 41

Method #2: Single Point Test.............................................................................................................................. 42

Other Test Equipment......................................................................................................................................... 42

Optical Return Loss Measurement Test.............................................................................................................. 43

Measurement Procedure..................................................................................................................................... 43

Results................................................................................................................................................................ 44

Summary............................................................................................................................................................. 44

X MobileAccess 1000/1200 User’s and Installation Guide

Chapter 1. Introduction

1.1 About MobileAccess 1000/1200™

MobileAccess™ 1000/1200 family of products provides seamless coverage for voice
and data wireless services in difficult indoor environments such as those found in
large corporate business buildings, airports, convention centers, hospitals and
university campuses. In these types of locations materials such as steel, concrete
and earth block RF signals; in high-rise buildings the opposite phenomena often
occurs – reception of multiple signals that cause interference.

MobileAccess™ is a hybrid fiber coax modular DAS solution designed to serve
multiple wireless services using a single common cabling infrastructure.
Homogeneous coverage is provided by antennas connected to Remote Hub Units
(RHUs) distributed throughout the coverage area.

The MobileAccess™ infrastructure is protocol-independent and can simultaneously
serve various frequency bands and protocols for voice and data wireless services.
The MobileAccess™ includes built-in alarm and control capabilities that enable
remote monitoring and control of the system elements (including antennas).

Features

• Single cabling and antenna system for all services and frequency bands

• Support for all current and future voice and data wireless services such as

PCS/CELLULAR, TDMA, CDMA, GSM, future 3G protocols, Paging, iDEN
and 802.11 (a,b,g) Wireless LAN

•

Upgradeable to include additional services

• Eliminates RF interferences occurring where multiple antenna systems are
used to serve multiple services

• Enables fast deployment for corporate enterprises, property owners and
WSP’s of new services

• Reduces tenant disruption

• Minimal input power to MobileAccess™ (~0dBm) - No need for high power

BTS/RBS, less expenses for the operators.

• Provides both local and remote monitoring and control capabilities

•

Software programmable parameters including output power, AGC (on/off and

levels), and system gain

•

Real time component setting capabilities for optimal performance (aging,

temperature, optical connectors, etc.,)

•

Modular design architecture

Nomad Access Confidential & Proprietary - Use Subject to Restrictions 1

Introduction MobileAccess™ 1000/1200

1.2 Applications

MobileAccess™ products are designed
to provide coverage for both public and
private types of structures.

Typical public markets include malls,
airports, convention centers and
hospitals; typical private markets
include office buildings, business
centers and campuses. (to send to
JEFF)

Three types of
applications are very
common for both
markets: single-building
and multi-buildings or
campus type. With
MobileAccess™ , there
are no limitations for
building height or
structure spread.

2 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Introduction

1.3 Base Unit to Remote Unit Configuration
Options

The MobileAccess™ 1000/1200 system includes three basic configuration options:

A) Basic configuration

In the basic configuration, depicted below, the Base Unit drives a single or dual
band, MobileAccess™ 1000 RHU. The dual band RHU consists of a low band
service (cellular 800, iDEN, Paging, or GSM 900) and a high band service (PCS
1900 or DCS 1800).

ModuLite 1000

Base Unit

ModuLite 1000

Base Unit

ModuLite 1000

Remote Hub Unit

Figure 3: MobileAccess 1000 Basic BU – RHU Configuration

B) Using the MobileAccess 1200 add-on unit to provide an additional
service

In the second option, a MobileAccess™ 1200 add-on unit can be added in order to
provide an additional service. The add-on unit can be Cellular, PCS, UMTS, 3G, or
any future service.

ModuLite 1000

Remote Hub Unit

ModuLite 1200
Add-on Service

MobileAccess 1000/1200 User’s and Installation Guide 3

Figure 4: MobileAccess 1000/1200 BU – RHU Plus Add-On

Introduction MobileAccess™ 1000/1200

C) Using the MobileAccess 800 WLAN module to provide access to
high data-rate service

In the third configuration, depicted below, the WLAN module (MobileAccess™ 800)
is added. The WLAN module may also be added without the MobileAccess™ 1200
unit.

ModuLite 1000

Base Unit

ModuLite 1000

Remote Hub Unit

ModuLite 1200

Add-on Service

WLAN Service

Figure 5: MobileAccess 1000/1200 BU – RHU Plus Add-on Plus WLAN Configuration

1.4 MobileAccess Models

Note: Your MobileAccess DAS site can support an additional service to adding a MobileAccess 1200
unit (either standalone or add-on).

Table 1-1: MobileAccess™ RIU Models

RIU

Description Catalog No.

Radio Interface Unit - Interface Module RIU-IM
Base Station Conditioner supporting Cellular 800MHz RIU-BTSC-CELL800
Base Station Conditioner supporting iDEN 800MHz RIU-BTSC-IDEN800
Base Station Conditioner supporting PCS 1900MHz RIU-BTSC-PCS1900
Base Station Conditioner supporting DCS 1800MHz RIU-BTSC-DCS1800
Base Station Conditioner supporting Paging 900MHz RIU-BTSC-PAGE900
Base Station Conditioner supporting GSM 900MHz RIU-BTSC-GSM900

Table 1-2: MobileAccess™ 1000 Base Unit Models

MobileAccess 1000/1200/2000 Base
Unit

Catalog No. Description

4 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Introduction

ML-B8U Base 8
ML-B4U Base 4

Table 1-3: MobileAccess™ 1000 RHU Models

MobileAccess 1000

Catalog No. (RHU) Band (MHz)
1000-DB - CELL800 - DCS1800 - R4U Cellular 800/DCS 1800
1000-DB - GSM900 - DCS1800 - R4U GSM 900/DCS 1800
1000-DB - EGSM900 - DCS1800 - R4U E-GSM 900/DCS 1800
1000-DB - IDEN800 - PCS1900 - R4U iDEN 800/PCS 1900
1000-DB - PAGE900 - PCS1900 - R4U Paging 900/PCS 1900
1000-DB - CELL800 - PCS1900 - R4U Cellular 800/PCS 1900
1000-SB - CELL800 - R4U Cellular 800
1000-SB - IDEN800 - R4U iDEN
1000-SB - SMR900 - R4U SMR 900
1000-SB - GSM900 - R4U GSM 900
1000-SB - DCS1800 - R4U DCS 1800
1000-SB - PCS1900 - R4U PCS 1900

1.5 System Description

The MobileAccess™ system can interface to up to three Base Stations (BTS) or
repeaters. Connections to the Base Units (BUs) can be implemented either via
passive interface or via active interface using the Radio Interface Unit (RIU). The
RIU significantly simplifies the process of performing the adjustments required
between the Base Station and BUs and in addition, provides enhanced monitoring
and control capabilities.

The RIU supports up to three modular adapters referred to as BTS Conditioners.
Each BTS Conditioner enables the support of a different service.

MobileAccess 1000/1200 User’s and Installation Guide 5

Introduction MobileAccess™ 1000/1200

BTS

Service #1

BTS

Service #2

Service #3

BTS

ModuLite 410430 MASTER

RF Interface Unit (RIU)

BTSC 1

BTSC 1

BTSC 1

Summed

Signal

RF in (sector #1)

RF in (sector #2 optional)

RF in (sector #1)

RF in (sector #2 optional)

Downlink

F/O Tx #1

F/O Tx #8

Uplink

F/O Tx #1

F/O Tx #8

Base Unit

Remote Hub Unit (RHU)

Downlink

F/O Tx

Uplink

F/O Rx

WLAN 800

RHU 1200

HPA

LNS

Filters and
Duplexers

To other RHUs...

To other RHUs...

Figure 1-1. MobileAccess™ System Block Diagram

The downlink RF signal is converted at the Base Units to a robust optic signal that is
driven over a single mode fiber to the Remote Hub Units (RHU) – where each BU
can support up to eight RHUs. At the RHU end, the optic signal is converted to RF
and distributed to the corresponding antennas – where each RHU can support up to
four antennas.

In the uplink path, the signal is received at the RHUs antennas, converted to an
optical signal at the RHU, and transmitted to the Base Unit where it is converted
back to RF.

To antenna...
To antenna...
To antenna...
To antenna...

Each MobileAccess 1000 RHU can support up to two frequency bands (according to
the specific model). A third band may be added using the MobileAccess 1200 add-
on unit that is assembled onto the MobileAccess 1000 RHU.

MobileAccess 1200 is also available as a
optical converters.

MobileAccess 1200 standalone

standalone

unit that includes its own

supports a single service

power levels twice to four times that of the MobileAccess 1000.
Wireless LAN services can also be added to the MobileAccess 1000 RHU by

connecting the

MobileAccess 840

add-on module. This provides wireless LAN

signals to the antennas connected to the MobileAccess 1000 RHU.
Monitoring and control functionality for all system elements are provided by the

MobileAccess 410/430 controller.
The Base Units and controller (along with the power supplies and other elements

required for interface) are usually installed in the same rack in the communication
room, while the RHUs are distributed throughout the locations to be covered. In the
communication room located next to the BTS or repeater, the RIU is also installed in
the rack.

6 MobileAccess 1000/1200 User’s and Installation Guide

Chapter 2. Module Description

The MobileAccess™ 1000/1200 system consists of four major components:

• Radio Interface Unit (RIU)

• Base Units (BU)

•

Remote Hub Units (RHU) 1000/1200

•

Controller 410/430

The number and type of modules vary in each system according to the configuration:

2.1 Radio Interface Unit (RIU)

2.1.1 General

The Radio Interface Unit ensures optimal signal level between the RF source and
MobileAccess 1000 Base Units.

The RIU includes the following features:

•

Support for both Simplex and Duplex connectivity to BDA/BTS

• Each RIU can simultaneously support up to three RF sources

• Programmable parameter for reduction of Noise Level injected to macro

network in a BDA (or BTS) configuration

• RF source - Automatic gain setting in a BDA configuration to compensate for

changes in the macro network topology

Each RIU includes up to three BTS Conditioner (BTSC) units, each providing
interface to a BTS unit. The model of the BTSC unit corresponds to the BTS carrier.
Automatic Gain Control (AGC) maintains a stable power level and invokes event
traps when the defined limits are exceeded.

In the downlink, the BTS conditioner attenuates the signals to the level required by
the Base Units for optimal Fiber Optic conversion. The output signals are summed
(note the front panel wiring) to a single output that is allocated to each of the
connected Base Units.

In the uplink, the BTSC provides the attenuation of the signal that is fed to the BTS,
minimizing the noise level of the signal.

The RIU may be monitored and controlled by direct connection to the RS232 front­panel connector or via the MobileAccess 410/430 controller (along with all other
system elements).

Nomad Access Confidential & Proprietary - Use Subject to Restrictions 1

Module Description MobileAccess™ 1000/1200

LED indicators on the RIU front panel show the status of each input RF signal on
each and of the RIU power. All connections on the BTS side and on the BU side are
implemented on the rear-panel.

The RIU front and rear panels are described in the following section.

2.1.2 Front and Rear Panel Descriptions

RIU Front Panel

The RIU front panel provides all the indicators and LEDs. The unit is supplied with
the front-panel connections that summarize the signals of all conditioners into a
single signal that is applied to all BUs.

Power indicator

Table 2-1. RIU Front Panel Indicators

LED Description

P.S UNIT PWR
BTS CONDITIONER RUN
BTS CONDITIONER DL OVERLOAD

BTS CONDITIONER DL LOW

ON – input signal is at the required level.

BTS Conditioners

Figure 2-1. RIU Front Panel

Flashing -- CPU is running and software loaded

Continuous Red – if the BTSC DL power is at

Continuous Red – RF switch is disconnected to
protect the system. This may be due to one of
the following reasons:

•

•

Flashing: When the BTSC DL output power is
more than 3dB of the calibrated value.

least 15dB lower than the calibrated BTSC max
power level. This condition also triggers an
event.

Unpredicted power rise for which the
attenuation response was insufficient to
compensate and reduce the power to the
required level.
Software problem detected.

2 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Module Description

DC power input

MobileAccess 410/430

duplexed connections

1000 BU connections (pair

RIU Rear Panel

The rear-panel provides all the connections on the BTS side and on the BU side as
well as connections to the MobileAccess 410/430 controller and the power
connection. Two types of BTS side connections are available for each BTS
conditioner: non-duplexed and duplexed.

Pairs of MobileAccess

Non­to a BTS or repeater

Figure 2-2. RIU Rear Panel showing the RF Connection

2.2 Base Unit

2.2.1 General

Duplexed connections
to a BTS or repeater

controller connection

The Base Unit converts the downlink signal from the BTS or repeater from RF to
Fiber Optic and transmits it to the Remote Hub Units via a composite or F/O cable.
On the uplink, the BU converts the signal from Fiber Optic to RF.

Depending on the Base Unit model, each Base Unit drives up to four or eight
remotes via duplex F/O connection, where each remote can be as far as 2
kilometers (1¼ miles) from the BU. Eight port BU consist of two four port BU that
are integrated.

Each Base Hub Unit may be monitored and controlled via either a direct RS232
connection to a laptop on which the MobileAccess Configuration application (MCT)
has been installed, or via the MobileAccess 410/430 controller.

MobileAccess 1000/1200 User’s and Installation Guide 3

Module Description MobileAccess™ 1000/1200

During power-up, the Base Unit identifies the active connected RHUs that are
connected to that Base Unit and each of the corresponding link LEDs is lit according.

2.2.2 Base Unit Front and Rear Panels

The front panel contains all the optical connections while the rear panel contains all
the RF connections.

Front Panel

The following figures shows the front panel of an eight port BU and a four port Bu.

Figure 2-3. Eight Port MobileAccess 1000 Base Unit Front Panel

Figure 2-4. Eight Port MobileAccess 1000 Base Unit Front Panel

Table 2-2. MobileAccess 1000 Front Panel Indicators

LED Description

PWR Internal voltages OK. Two LEDs – one for each four-port module.
LSR

Link Detected optical signal received on that link.

Laser signal transmission is OK. Two LEDs – one for each four-port
module.

4 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Module Description

Alarms connector

Rear Panel

The Base Unit rear panel on which the BTS side (RF) connections are located is
displayed by the following figure.

Pair of uplink and downlink connections
for interface to BTS side (all four
connectors must be connected)

Figure 2-5. Base Hub Unit Rear Panel (RF Connections)

Table 2-3. MobileAccess 1000 Front Panel Indicators

Connector Description

Uplink output Uplink connectors to be connected on BTS side.
Downlink input Downlink connectors to be connected on the BTS side.
Com Port RS485 Connection to MobileAccess 410/430 controller.
PWR Power connection

MobileAccess 1000/1200 User’s and Installation Guide 5

Module Description MobileAccess™ 1000/1200

2.2.3 Remote Hub Unit (RHU)

On the downlink, the RHU converts the optical energy received from the BU back to
RF energy which is then delivered to the connected indoor antennas. On the uplink,
the RHU converts the RF energy from the antennas to optical energy which is then
delivered to the Base Units.

In order to make your system as flexible as possible and maximize the resources,
MobileAccess product line includes three models of RHUs:

• MobileAccess 1000 RHU

• MobileAccess 1200 RHU standalone

•

MobileAccess 1200 RHU add-on

2.2.3.1 MobileAccess 1000

Each MobileAccess 1000 RHU unit can support two different frequency bands
depending on the RHU 1000 model. Output composite power per antenna port is in
the range of 14 to 20 dBm (depending on the served protocol).

MobileAccess 1000 can be purchase in one of the following models:

•

Two-band RHU

• Two-band plus support for a third band (implemented using MobileAccess
1200 add-on unit)

Note: A third band may be added using the RHU 1200 add-on unit or RHU 1200 standalone unit (see
section xx for more details).

Cellular external

DC power connector

antennas

Optical input/output
connectors to/from Base Units

6 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Module Description

2.2.3.2 MobileAccess 1200

RHU 1200 is supplied in two configurations:

•

MobileAccess 1200 add-on. This unit is installed on the MobileAccess™

1000 unit (supporting this option) . RHU 1200 add-on unit enables expanding
the RHU 1000 unit capabilities by an additional service. The supported band
varies depending on the model of the RHU 1200 add-on unit. RHU 1200 is
simply connected to the existing RHU 1000 unit.

•

MobileAccess 1200 standalone unit. RHU 1200 standalone is a single-

band high power RHU. It consists of two sub-modules: an optical module that
provides the optics to RF conversion and the RF module that provides
amplification and power to the antennas.

Table 2-4: MobileAccess™ 1200 RHU Models

MobileAccess 1200

Catalog No. (RHU) Band (MHz)
1200 - UMTS - SA - R1U UMTS
1200 - UMTS - AO UMTS
1200 - PCS1900 - SA - R1U 1900
1200 - PCS1900 - AO 1900
1200 - DCS1800 - SA - R1U 1800
1200 - DCS1800 - AO 1800
1200 - CELL800 - SA - R1U 800
1200 - CELL800 - AO 800

Note: Detailed specifications for all models appear in the MobileAccess

TM

data sheet (421300220).

Figure 2-6. 1200 add-on unit Figure 2-7. 1200 standalone unit (TD)

MobileAccess 1000/1200 User’s and Installation Guide 7

Module Description MobileAccess™ 1000/1200

2.2.4 MobileAccess 410/430 Controller

NOTE: This section provides general information on the MobileAccess 410/430 Controller. For
detailed information onf the controller, configuration and connections refer to xxxx.

The MobileAccess controller enable managing and controlling the MobileAccess
system elements. Each controller provides connection to up to four Legacy Base
Units, or a total of up to eight MobileAccess Base Units and Radio Interface Units in
any combination. The RHUs (and antennas) are monitored via the Base Units.

Where support of more than four Legacy Bus or more than eight MobileAccess BU
and RIU elements is required, additional MobileAccess controllers, defined as a
“slaves” controller, can be added.

Slave controllers can also be used in a campus configuration where up to eight
Slaves can be connected to a single Master. All the monitoring and control
operations can be performed from the Master’s location.

Two MobileAccess controller configurations are provided: MobileAccess 410 and
MobileAccess 430. The models differ in their remote access capabilities:

•

MobileAccess 410 provides point-to-point connectivity implemented via either

direct RS232 connection or via connection to a DSPN phone line

•

MobileAccess 430 provides client/server management capability over TCP/IP

network with enhanced monitoring and control capabilities (in addition to the
connectivity options provided by MobileAccess 410).

NOTE:

The MobileAccess 430 front panel is differentiated from the MobileAccess 410 front

panel by the SNMP Agent Card that provides TCP/IP management capabilities.

The controller front panel provides:

• LED indicators and an LCD display

• Local PC connections for monitoring

•

For MobileAccess 430 only – TCP/IP connection and corresponding status

indicators

The controller rear panel provides connections to:

•

Base Units – up to four Litenna and up to 8 MobileAccess

• Up to eight slave controllers

• Alarm outputs and inputs

•

Modem connections for management connections

• Power

Note: The rear panels for the MobileAccess 410 and MobileAccess 430 are the same.

8 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Module Description

Major, Minor

DC Input

connections

BU connections

purpose alarms

A

Local RS232
connection (for
IP address

Figure 2-8. MobileAccess 410 Front Panel

Figure 2-9. MobileAccess 430 Front Panel

8 MobileAccess

Local RS232 connection to
Laptop (RF2Litenna for Remote

TCP/IP connection

4 Litenna BU

Input for general

Master/Slave configuration

Run and
Power LEDs

larm outputs

LCD alarm display
corresponding to Major
and Minor LEDs

For Master -- 8 Slave
Controller connections
(via RF2Litenna uplink)

Figure 2-10. MobileAccess 410/430 Rear Panel

MobileAccess 1000/1200 User’s and Installation Guide 9

Chapter 3. Installation Procedure

This following installation procedure is based on the assumption that site survey and
installation planning (including power requirements) have been completed:

• Infrastructure preparation according to site analysis and planning: Fiber
Optic, coax cable and DC cable installation, Splice the fiber optic cable
according to the fiber optic infrastructure design plan.

•

Individual floor installation: Install antennas and connect to coax, Install

Remote Hub Unit installation on each floor (mounting and connections).

•

Communication room installation: RF interface (passive or RIU), Base Units

and MobileAccess 410/430 controller (mounting and connections).

MobileAccess 1000/1200 User’s and Installation Guide 10

MobileAccess™ 1000/1200 Installation Procedure

3.1 General

There are two types of installations: single-building and multi-building (campus)
configuration. This section describes the recommended Fiber Optics and system
location for both configurations. It is recommend to perform the following steps for
all MobileAccess installations (both single- and multi-building).

Single-building Installation

In this installation, all Base Units are placed in the same location (usually in the
communication room). The Base Units are connected to the BTS/RBS (or repeater)
via passive interface or via the RIU (Radio Interface Unit). RHUs are located in
various zones in the building according to the RF design. In a multiple story building,
a single RHU can typically cover a floor of up to 30,000 sq ft.

As illustrated in figure xx, the fiber optic cable runs from the communication room
(Base Units) through the building shaft. Usually every three floors, a fiber optic cable
is tapped to a splice box where it is distributed to the floor on which the splice box is
located, to the floor above and to the one below.

On each floor, the fiber is connected to the corresponding RHU where it is converted
to RF and distributed to the connected antenna(s) via coax cable.

MobileAccess 1000/1200 User’s and Installation Guide 11

Installation Procedure MobileAccess™ 1000/1200

Floor n

Fiber Optic

Cable

Jumpers

19" Rack

Patch panel

Splice tray

MBU

PigTail

2-8 Fibers

Splice

box

Splice

box

2-8 Fibers

MRC

MRC

MRC

MRC

Floor 9

Floor 8

Floor 7

Floor 2

12 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Installation Procedure

Example 2: Horizontal Structure

In a horizontal layout installation, a separate fiber optic cable is connected to every
site location, where a site may include more than one RHU. The connection may be
to a splice box or directly to the RHU (depending on the site confiugraiton).

H

RHU

D

RHU

E

B

A

CELL
SITE

C

E

BASE
UNIT

D

A

B

C

G

G

I

CELL

SITE

BU

F

H

I

F

Figure 3-1: Horizontal Layout Installation

MobileAccess 1000/1200 User’s and Installation Guide 13

Installation Procedure MobileAccess™ 1000/1200

3.2 About Infrastructure Installation

Note: When working with fiber optics, it is crucial to maintain a clean working environment. However,
if the working environment has been tainted or if the optics connectors has not been covered, refer to
appendix x for information on cleaning the fiber optic cable.

ATTENTION: MobileAccess™ requires singlemode fibers with
SC/APC connectors. Be sure to use only these types of fibers.

Install all the insfratusture equipment according to the site plan. This procedure
includes:

• Installing the antennas. The antenna(s) are mounted to the ceiling, or are
embedded inside the ceiling tile, depending on the building construction.

• Routing the coax cables. These cables are routed between the antennas
and the location of the corresponding RHUs.

• Assembling coax connectors to either side of the coax cables.

• Routing Fiber optic cable backbone.

•

Splicing the main routed fiber optic in the appropriate locations and installing

or placing the corresponding equipment (splice box, splice tray, patch panel,
etc.) in the appropriate locations.

Note: if these devices are installed in the 19” rack, be sure to place them as high as possible so
they will not interfere with the rest of the components that will be installed.

•

Routing DC cables (see section xx for more info)

14 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Installation Procedure

3.3 Power Supply for the MobileAccess™

Note: Power to the MobileAccess™ modules may be supplied by any configuration of power supplies
that provide the necessary voltage and power.

It is recommended to calculate the required power according to the requirements of
the specific installation and then determine the configuration of the power supplies.
The required DC cables will then be determined by the selected PS configuration.

Following are the Power Supply configurations usually in use:

•

Local configuration in which each PS unit is located adjacent to the BU or

RHU units (PS provide AC to DC conversion)

•

Single source configuration in which all BU and RHUs are supplied from a

single location (i.e. high-rise)

•

Mixed configuration in which a number of BU and RHUs are supplied from

each power supply (i.e. campus application where each building has a single
source)

The power required by each MobileAccess™ type unit is listed in the following table:

Table 3-1. MobileAccess™ Power Requirements

Unit Type Voltage Input Power Consumption

RIU 20 to 48VDC 10W
Base Unit 20 to 48VDC 10W
Remote Hub Unit
1000
Remote Hub Unit
1200

20 to 48VDC 25W
20 to 48VDC 30W

Various types of power supplies meeting these requirements may be purchased
from MobileAccess. The power supplies can be installed in a rack or mounted on a
wall, depending on your configuration. Four power supply options are available.

•

Option One.

In this option, the BU is connected to the power supply via
electrical cables. In order to power the RHU from the power supply, two
copper electrical wires running through the building (separately from the fiber
optic cables) supply power to each RHU in parallel. For this configuration,
electrical power calculations are needed. The option is shown in Figure 3-2.

•

Option Two.

In this option, the power supply is located near the BU. The
power supply will drive the BU and RHU’s. To provide power, the BU is
connected to the power supply via electrical cables. To supply power to the
RHU, a composite cable is used (composite cable contains two fiber cables
and copper electrical wires in the same jacket). For this configuration,
electrical power calculations need to be made.

• Option Three. In this option the power supply type is a standalone
configuration. Power for both the BU and RHU’s will be supplied separately.
In this configuration each unit will be co-located with a power supply. This will
not require long electrical cable runs.

MobileAccess 1000/1200 User’s and Installation Guide 15

Installation Procedure MobileAccess™ 1000/1200

2

Table 3-2: Power Supply Options

Materials Model

Local power supply

Remote power supply (no
redundancy)
Remote power supply (fully
redundant)
Remote power supply (fully
redundant)
Remote power supply (fully
redundant)

The example in Figure 3-2 depicts a MobileAccess™ GSM Dual Band installation
with 500W/ 48VDC AC/DC converters providing a total of 0.5A power.

Between the AC/DC converters and the units, a circuit breaker (maximum 10A) must
be installed, either in the AC/DC converter or nearby.

RHU 48

RHU 33

LPS-24-1A

RPS-200-N-48

RPS-150-R-48
RPS-500-R-48
RPS-1000-R-48

2.5mm

2.5mm

Clamping
Connector

BU 1 BU 2 BU 3

2

2.5mm

48VDC

10A

Fuse

AC/DC

1

110/220

VAC

Figure 3-2: EXAMPLE: DC Power Supply in High Rise Installation

16mm

2.5mm

2

BU 4

2

10A

BU 5

48VDC 48VDC

Fuse

AC/DC

2

110/220

VAC

RHU 16

2.5mm

RHU 32

RHU 17

RHU 1

BU 6

2

10A

AC/DC

3

2.5mm

2.5mm

Fuse

110/220

VAC

2

2

STATION

2

2

16mm

BASE

16mm

16 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Installation Procedure

At eye level

3.4 Rack Installation

It is recommended to install the following MobileAccess system modules in a 19”
rack (usually in the communication room):

•

RIU 3U

• BU 1U

• MobileAccess 410/430 controller 1U

•

Fiber Optic patch panel and splice tray– (previously installed – see section xx)

•

Power supply/supplies (MobileAccess – 3U for each unit, other manufacuters

may vary in size)

Verify that the rack height can support all the units to be installed, where you may
also want to consider future expansions.

The following image describes shows the recommended locations of the
MobileAccess elements in the rack in order to facilitate and simplify the cabling
connections.

Note that the MobileAccess 410/430 controller is at eye level to provide an easy view
of the LED indicators and LCD display and easy access to the local and remote
monitoring connections.

Fiber Optic Patch Panel
and Tray (variable)

MobileAccess Controller
MobileAccess Base Unit 1

MobileAccess Base Unit 2
MobileAccess Base Unit 3

MobileAccess Base Unit 6

MobileAccess RIU (3U)

MobileAccess
Power Supply (3U)

MobileAccess 1000/1200 User’s and Installation Guide 17

Installation Procedure MobileAccess™ 1000/1200

3.5 Connecting Each of the MobileAccess
Elements

3.5.1 Base Unit Connections

The Base Unit converts the RF signal from the BTS side to optic signals to be
transmitted via optic fiber to the RHUs. Therefore, there are two types of
connections to each base unit:

• Base Unit to BTS side RF connections

• Base unit to RHU side optic connections

The BU may be connected in the following three configurations:

A) MobileAccess 1000 full configuration:

This is a typical MobileAccess 1000 configuration.

RHU

BTS

(operator)

Passive

Interface

ModuLite 1000 BU

RHU

RHU

B) MobileAccess / Litenna configuration for backwards compatibility:

In this configuration the BU replaces an old BU in the old MobileAccess / Litenna
products.

The BU is connected to the BTS through a passive interface without a BTSC, and
has to perform exactly like the old BU. The issue here is that the passive interface is
previously calibrated to input powers that the old BU needed. The new BU has to be
able to adapt itself to these input powers.

Legacy

RHU

RHU

RHU

(operator)

BTS

Legacy

Passive Interface

ModuLite 1000 BU
(acting as Legacy)

18 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Installation Procedure

Alarms connector

C) MobileAccess 1000 partial configuration:

In this configuration the BU is driven by a passive interface instead of a BTSC.
Unlike the previous configuration, the passive interface is supplied at the same time

as the BU, so the passive interface is calibrated to supply the input power normally
expected by the BU (as if a BTSC was connected).

RHU

BTS

(operator)

Passive

Interface

ModuLite 1000 BU

RHU

RHU

3.5.2 Base Unit to BTS Side Connections

Base Units may be connected to the BTS/RBS/BDA either via passive RF interface
or via the Radio Interface Unit.

The Base Unit rear panel on which the BTS side (RF) connections are located is
displayed by the following figure.

Pair of uplink and downlink
connections for interface to BTS
side (all four connectors must be

Figure 3-3. Base Hub Unit Rear Panel (RF Connections)

3.5.2.1 Connections via Passive RF Interface

BTS/RBS/BDA Duplexed Configuration

4. Verify that the BTS/RBS/BDA is connected to a standard duplexer via a 50Ω
(RG223) coax cable.

5. Connect the downlink port through attenuators to the input on the Base Unit rear
panel, according to the required input power.

6. When more than one Base Unit is used, splitters are required to connect to the
other Base Unit inputs.

DC

Connection to
MobileAccess

MobileAccess 1000/1200 User’s and Installation Guide 19

Installation Procedure MobileAccess™ 1000/1200

7. On the uplink side, combine the ports and connect them to the duplexer uplink
port via a 50Ω (RF 223) coax cable.

Note: All other cables are male to male 50Ω.

Attenuator

Duplexer

BTS

Figure 3-4: Example: One port BTS/RBS connected to 1BFU

Attenuator

Duplexer

2way

BTS

2way

Figure 3-5:Example: One port BTS/RBS connected to 1 B8U .

B4U

B8U

BTS/RBS/BDA Simplex Configuratoin

1. The BTS/RBS downlink port should be connected via 50Ω (RG223) coax cable
to the Base Unit input via an attenuator.

2. The downlink coax cable coming from the BTS/RBS should be split
using splitters to all Base Unit input ports (split according to need).

3. The input power for the Base Unit should be calculated to meet the
product specifications.

4. For the uplink only the necessary ports will be combined and
connected to the BTS/RBS uplink port with suitable splitter.

Note: All cables are coax jumpers (male to male 50Ω).

20 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Installation Procedure

Attenuator

BTS

Figure 3-6: Example: Two port BTS/RBS connected to B4U.

Attenuator

BTS

Figure 3-7: Example: Two port BTS/RBS connected to B8U with six optic links

3.5.2.2 Connections via Radio Interface Unit (RIU)

Each RIU can support up to four 8-port Base Units. The RIU can be expanded to
support additional BU via the front panel connectors. Figure 3-8 shows the RIU rear
panel connections.

B4U

2 way

2 way

B8U

Note: All connections are via RG223 coax cables with 1/2" N-type male connectors

RIU to BTS/RBA/BDU connections

Note: Be sure to connect each service from the BTS side to the corresponding BTS conditioner
module.

The RIU can be interfaced to up to three BTS/RBA/BDU connections. Two types of
BTS connections are supported:

• Simplex BTS connection via an external duplexer.

•

Duplex BTS connection via an internal duplexer.

MobileAccess 1000/1200 User’s and Installation Guide 21

Installation Procedure MobileAccess™ 1000/1200

DC power input

MobileAccess 410/430

connections to a BTS

to a BTS or repeater

RIU to Base Unit connections

Connect each Base Unit to the corresponding pair of RF outputs on the RIU rear
panel.

Figure 3-8. RIU Rear Panel showing the RF Connection

Non-duplexed

3.5.3 Base Unit to RHU connections

1. It is assumed that the patch panel cabinet (SC/APC adaptors) for fiber optic
cable connections is installed in the rack near the Base Units.

2. Connect (3/125/900) pigtail with SC/APC connectors between splice
tray and patch panel cabinet.

3. Connect (3/125/3000) SC/APC jumpers between the corresponding
Base Unit and patch panel.

4. Connect the fiber optic cables from the Base Unit to the RHU’s
through the patch panel cabinet.

Duplexed connections

controller connection

Laser output connection to

Optical diode input from RHU

RHU LED indicators (Link 1

Base Unit Laser operational LED

Power indicator

RS232 connection for

22 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Installation Procedure

3.6 Remote Hub Units (RHUs) 1000

1. Install splice box near RHU (refer to optic planning).

2. Connect fiber optic cable to splice box and (3/125/3000) pigtails to

RHU

3. For the downlink, connect the fiber optic cable pigtails from splice box

coming from the Base Unit port to the corresponding Remote Hub
Unit port.

4. Connect the Remote Hub Unit to antennas according to the RF

engineers design. (up to 4 antennas per RHU).

5. For the uplink, connect the fiber optic cable pigtails from splice box

from the Remote Hub Unit to the uplink port that connects to the Base
Unit.

6. Connect the power supply to each RHU according to power design

planning.

3.7 RHU 1200

3.7.1 Remote Hub Unit 1200 Add-on Unit

RHU 1200 does not require additional installation of either coax or fiber since the
optical to RF conversion and antenna connections are provided by the RHU 1000
unit.

The add-on RHU is connected to the corresponding RHU 1000 unit using SMA coax
jumpers at the rear of the units.

Figure 3-9. RHU 1000 with RHU 1200 add-on unit

MobileAccess 1000/1200 User’s and Installation Guide 23

Installation Procedure MobileAccess™ 1000/1200

To install the 1200 add-on unit

1. Remove all three SMA connectors.

2. Connect the Add–On unit with four screws to the installed RHU 1000.

3. Connect coax jumpers between units correspondently.

4. Connect power to the Add-On unit.

Floor 32

DC

Cable

Fiber Optic

Cable

Jumpers

B8U

19" Rack

Patch panel

Splice tray

PigTail

2 Fibers

Splice

box

Splice

box

2 Fibers

RHU

RHU

RHU

RHU

Add

on

Add

on

Add

on

Add

on

Floor 9

Floor 7

Floor 2

Power Supply

24 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Installation Procedure

3.7.2 Remote Hub Unit 1200 Standalone

RHU 1200 standalone unit provides high power support for a single band. The
supported band varies depending on the model of the RHU 1200 standalone unit.

The standalone RHU 1200 is connected to the communication center’s base unit by
two fiber optic strands

Figure 3-10. RHU 1000 with RHU 1200 add-on unit – wrong picture

To install the 1200 standalone

1. Connect BTS/RBS to Base Units via ½” coax cable RG223 or similar with 50Ω

impedance according the RF design.

2. In the remote end, install the RHU 1200 standalone in a shaft or wall

mount.

3. Connect two pigtail/jumpers fibers from the splice box to each unit.

One splice box can support several RHU’s according to the optical
design (normally three RHU’s).

4. Connect antennas to the Remote Hub Unit UMTS Ready via ½” or 3/8” or similar

coax cable with 50Ω impedance and N-type male to male.

5. Terminate all unused antenna ports (N-type for antennas) on the Remote Hub

Unit UMTS Ready with 50Ω load

Optic Out1

Optic In1

Optic In

Optic Out

RHU

B8U

Optic Out8

Optic In8

3G port3
3G port2
3G port1

GSM

900/1800

Figure 3-11:UMTS Ready -System Configuration

MobileAccess 1000/1200 User’s and Installation Guide 25

Installation Procedure MobileAccess™ 1000/1200

The following diagram depicts the upgraded remote site design:

Optic Out1

Optic In1

3G port3
3G port2

B8U

Optic Out8

Optic In8

3G port1

3G port1
3G port2
3G port3

Figure 3-12: Example - MobileAccess™ UMTS Ready Full Installation

3.8 Controller Connections

Optic In

Optic Out

RHU

GSM

900/1800

Add-onRHU

UMTS

The MobileAccess controller connections vary depending on the configuration of the
site and the required monitoring capabilities. The MobileAccess 410/430 controller
configuration is described in section xx .

3.9 Power Supply Connections

Connect the power supply to the units, according to power design planning.

26 MobileAccess 1000/1200 User’s and Installation Guide

Chapter 4. Adjustments Procedure

This procedure is used to adjust the system to provide optimal performance. The
system will be operational without this adjustment procedure; however, the system
performance will be better.

Adjustments can be made only after the system is fully installed. The adjustments
procedures differ depending on the system topology:

• With RIU

• Without RIU

•

Main building adjustments

• Remote building adjustments

The adjustment procedure consists of three phases:

1. Performing auto-discovery and verifying that all system elements are detected.

2. Downlink adjustments

3. Uplink adjustments

4.1.1 Auto-detect

Before beginning the adjustment procedure, verify that all the system
elements are detected by doing the following:

1. If your Master controller is MobileAccess 430 (with a TCP/IP) slide-in board,

replace the TCP/IP slide-in board with an RS-232 board without TCP/IP.

2. Connect a laptop on which the MCT application is installed to the Master

controller RS232 front panel connector.

3. Launch the MCT application. The application will perform auto-discovery and a

Browser tree with all the system elements will be displayed.

4. Verify that all the installed system elements are displayed in the list. You may

now begin to perform the downlink adjustment procedure.

MobileAccess 1000/1200 User’s and Installation Guide 27

Adjustments Procedure MobileAccess™ 1000/1200

28 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Adjustments Procedure

4.1.2 Downlink Adjustments

The adjustment procedure is performed after the system installation is completed.
The procedure requires injecting a signal equivalent to that provided by the BTS.
This can be done by either using a signal generator or simply connecting the BTS.

If using a signal generator, set it up as follows:

• Frequency – mid-band frequency of the Operator’s range

• Amplitude – equal to the maximal expected composite RF transmitted by the

BTS

4.1.3 Main or Independent Building with RIU Adjustment

The DL path can be calibrated using either an injected signal that physically
represents the maximum input power expected from the BTS or using an estimation
of the same power level.

First band

-- adjust BTSC, each BU, and each RHU in the

relevant band.

Maximum expected power
as given by the operator

BTSC 2

(High band)

BTSC 1

(Low band)

BTSC 3

(Add-on band)

Adjust BTSC
output power

Second band

band. No BU adjustment needed since each BTSC inputs
a third of the the power. Once the BU is adjusted, the
adjustemnt holds for any number of BTSCs (1, 2 or 3).

Do not adjust the BU while more than one BTSC is
transmitting.

Third band

- adjust BTSC, and each RHU in the relvant

-- adjust Add-on if relevant.

Adjust Laser Input Power to the
optimal level required for
conversion to F/O

Figure 4-1. Main or Independent Building with RIU

4.1.4 First Band Adjustment

Adjust according to
ADD-ON frequency

Adjust according to
specific HIGH band frequency

Adjust according to
specific LOW band frequency

BU 1

BU 2

Adjust

Adjust

Adjust

RHU 1200 Add-on

RHU High band
RHU Low band

RHU 1200 Add-on

RHU High band
RHU Low band

4.1.4.1 First Band (any of the bands)

For the first band, adjustments are made end-to-end from the BTSC, through to each
of the connected BU and to each of the corresponding RHUs.

1. Connect either the signal generator or the BTS to either the duplex or non-duplex

connectors of one of the BTSC units (i.e. BTSC #1).

NOTE: The signal generator must be set to mid range frequency and maximum power, while BTS
must be set to test mode with all carriers on.

MobileAccess 1000/1200 User’s and Installation Guide 29

Adjustments Procedure MobileAccess™ 1000/1200

2. Verify that the MobileAccess RS232 slide-in panel is inserted in the
MobileAccess 410/430 controller and connect the laptop to on which the MCT
application is installed to the RS232 front panel connector.

3. Launch the MCT application, double-click on the first BTSC element (i.e. BTSC

1) in the Topology tree, and access the Adjustments pane.

4. Select the type of adjustment (Live or Emulated signal source) and click Adjust.
A message will appear indicating if the procedure was successful or failed.

If the procedure was successful the parameters will be stored.

5. If the procedure failed, the cause will be indicated. In addition, if the procedure
failed, the BTSC will retain the parameters of the last successful adjustment
procedure.

.

Second Band (any of the other bands)

1. Connect either the signal generator or the BTS to either the duplex or non-duplex
connectors of one of the BTSC units (i.e. BTSC #1).

NOTE: The signal generator must be set to mid range frequency and maximum power, while BTS
must be set to test mode with all carriers on.

2. Launch the MCT application, double-click on the next BTSC element (i.e. BTSC

2) in the Topology tree, and access the Adjustments pane.

3. Select the type of adjustment (Live or Emulated signal source) and click Adjust.
A message will appear indicating if the procedure was successful or failed.

If the procedure was successful, the parameters will be stored.

4. If the procedure failed, the cause will be indicated. In addition, if the procedure
failed, the BTSC will retain the parameters of the last successful adjustment
procedure.

.
The BTSC embedded SW will carry out the following scenario. Note: The DCA value is set in the factory to 31 (– max

attenuation).

The leds DL OVERLOAD and DL LOW SIGNAL will serve as indications during the
adjustment as described in the block diagram. Upon success the sw will calculate
Pin (see the method in DL ‘dry’ adjustment section) and store it.

4.1.4.2 First band downlink adjustment

30 MobileAccess 1000/1200 User’s and Installation Guide

Appendix A. Frequently Asked

Questions

1. What are the BU and the RHU, and for what are they used for?

The MobileAccess™ system consists of two modules: Base Unit and Remote Hub Unit. The Base Unit interfaces
between the microcell or base station and the Remote Hub Unit (RHU). The interface is via either a composite cable
or fiber optic cable. In this description, on the downlink path, the Base Unit converts incoming RF signals to optical
signals, transmitting these signals over fiber optic cable to the RHU. The RHU converts the optical signal back to RF.
The RHU drives the four connected antennas. On the uplink path, the RHU combines and converts incoming RF
signals from the four antennas into optical signals, transmitting these signals back to the Base Unit. The Base Unit
converts the signals back into RF signals.

2. How does the BU connect to the RHU, and which fibers and connectors are required?

The BU connects to the RHU via fiber optic cable. The system uses 2 fibers for each RHU connection, one fiber for
the uplink and one fiber for the downlink. The MobileAccess™ system requires singlemode fibers and SC/APC
connectors.

3. How many RHU’s and antennas are required for each floor in a building?

Determine the number of RHU’s and antennas per floor depends on the building size and configuration. Each RHU
can support up to four antennas. It is possible to connect several BUs together in one installation, increasing the
amount of available RHU’s. With one BU able to support up to eight RHU’s, this translates to up to 32 antennas.

4. Is the RHU and BU power supply AC or DC? and what is the voltage level?

The power needs of the BU and RHU are supplied by DC power. The voltage level is 18V-48V. MobileAccess offers a
power supply for the BU as well as the RHU. The power supply options are a Remote-located power supply, or a
Local power supply.

The Remote-located power supply is located near the BU. This power supply drives the BU
and the RHU’s. To provide power, the BU is connected to the power supply via electrical
cables. For power to the RHU, a composite cable can be used. [A composite cable contains
two fiber cables and two copper electrical wires in the same jacket]

The Local power supply provides power to the BU and to the RHU separately. A Local power supply is co-located with
each BU and RHU, not requiring long electrical cable runs.

5. Can the RHU be used in outdoor applications?

Currently, the RHU can be used only for indoor applications. The RHU can be upgraded for outdoor applications.

6. What type of antennas can be used?

All antennas types (appropriate to the cellular standard used) can be used for the MobileAccess™ system, including
leaky coax.

7. Does the RHU require a dedicated power supply or can it be powered by remote?

The RHU can be supplied with a local power supply, or by a remote powering DC cable over fiber optic cables
(composite cable).

8. Can the MobileAccess™ Base Unit be connected to the BTS/Microcell/BDA/off-air repeater?

The MobileAccess™ BU can be connected to the following: BTS, Microcell, Off-air Repeater (with virtually no
modifications).

9. Does the MobileAccess™ require any special tuning or adjustments during the installation?

The MobileAccess™ doesn’t required any special tuning or adjustments during the installation.

10. Does the MobileAccess™ support multi services, like GSM Dual band?

The MobileAccess™ system is upgradable to support multi services over the same fiber cable, like GSM Dual-Band
(900/1800). The system will also be available as a field modular system for UMTS (3G).

11. What are advantages of the MobileAccess™ compared to a coax solution?

The MobileAccess™ advantages over coax are: Low cost per antenna, easy to install and maintain, flexible
placement, easy to configuration, and future proof.

MobileAccess 1000/1200 User’s and Installation Guide 31

Adjustments Procedure MobileAccess™ 1000/1200

12. What is the RF input power required at the Base Unit?

The required composite RF input power at the Base Unit is between 0dBm to 7dBm, depending on the operating
standard.

13. What alarms are in the system, and how can they be transmitted to a central monitoring system?

The MobileAccess™ system can support 3 alarm options: Dry Contact alarms
(Normally Closed), Dry Contact alarms (Normally Open) and open collector alarms.
The alarms can be applied to every link or as a major alarm.

32 MobileAccess 1000/1200 User’s and Installation Guide

Appendix B. : Link Measurements

Form

To smoothly carry out link measurements, refer to table Table 4-2: Fiber optic Cable
Test Results. This table aids system evaluation and provides necessary feedback to

MobileAccess.
The following issues should be taken into account:

• Measure the optical power for every link with an optical meter and light

source, according to the number of links or RHU’s.

• Measure the typical signal strength (RSSI) for every installed antenna.

• Check coax cable connection between RHU and every installed antenna.

Table 4-1: Link Measurement Table

System
Link

Power Meter
(mW)

Ant1 Ant2 Ant3 Ant4 Ant1 Ant2 Ant3 Ant4

RSSI (dBm)

Coax Cable (OK/Fail)

RHU1

RHU2

RHU3

RHU4

•

•

•

•

•

•

MobileAccess 1000/1200 User’s and Installation Guide 33

Appendix C. Fiber Optic Cable

Instructions

Fiber Optic Cable

Before connecting the cable, clean the inside adaptor of the MobileAccess™
according to the following instructions:

MobileAccess 1000/1200 User’s and Installation Guide 34

MobileAccess™ 1000/1200 Adjustments Procedure

MobileAccess 1000/1200 User’s and Installation Guide 35

NOTE: In order to explain the testing procedures, the terms related to these tests need to be explained.

MobileAccess 1000/1200 User’s and Installation Guide 36

MobileAccess™ 1000/1200 Adjustments Procedure

Appendix D. Fiber Optic Cable –

Terms

Fiber optic cable is produced in a variety of formats with different characteristics. The
following terms define the various aspects of fiber optic cable:

•

Fiber optic cable

• Jacket

• Buffer

•

Fiber

• Optical fiber

• Core

•

Clad

• Singlemode

• Multimode

•

Fiber optic connection

• Splice

• Fusion

•

Mechanical

• Connector

• Bending Loss -- Minimum bending radius

•

Coupler

Optical Fiber

Fiber optic cable is described by the amount of fibers contained within. The cable
described by the following terms:

•

Glass. Glass is the middle fiber in the cable. The data sent over the cable

travels through the glass.

•

Buffer. The buffer is the plastic coating that covers the fiber optic cable. The

buffer protects the glass from moisture and other damage.

MobileAccess 1000/1200 User’s and Installation Guide 37

Adjustments Procedure MobileAccess™ 1000/1200

•

Jacket.

glass.

The fiber consists of Core and Clad. The central part of a fiber is known as the core,
and the material surrounding the core is known as the clad. The clad has a lower
index of refraction than the core, allowing light to be completely reflected off the
surface between the core and the clad. As a result, propagated light remains entirely
within the core. The cross-section of the cable is expressed as the core diameter

followed by the clad diameter. For example, a 9/125 fiber has a core diameter of 9µ
m and a clad diameter of 125µm.

clad

core

{

clad

The jacket covers the buffer, providing greater protection to the

{

9µm 125µm

{

Figure 4-2: Fiber Optic Cable Structure

The cables are available in two different modes, each with different propagation properties:

Property Core Clad Attenuation

Singlemode
Multimode
Multimode

9 µm 125 µm
50 µm 125 µm

62.5 µm 125 µm

.38 dB/Km
1 dB/Km

λ1

λ1

λ2

@1310nm

Singlemode

fiber

9 125

Multimode fiber

λ3

50 125

(For illustration only)

Figure 4-3: Singlemode - Multimode Fibers

38 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Adjustments Procedure

Connecting Fiber Optic Cable

In order to carry out a fiber optic connection a Splice and a Connector are required.

•

Splice. A splice consists of cutting the fiber optic cable across the cable’s

diameter and combining the opening with another fiber optic cable. A splice
can be carried out in the following methods:

•

Fusion

– following the splice, the cables are warmed and the two fiber optic

cables are melted together.

•

Mechanical

– following the splice, a hard connection is made between the

two fiber optic cables.

•

Connector.

In order to add or connect additional fiber optic cable, a
connector is used to make the connection. There are several types of
connectors:

• FC/PC

• SC/PC

•

SC/APC (used by MobileAccess™)

Fiber Optic Cable Bending Loss

When the cable has bends or interior irregularities, then the optical signal becomes
weaker, known as Bending Loss. The sharper the bend – the greater the loss. Such
losses increase the cable’s attenuation.

Note: When installing fiber optic cable, the minimum bending radius needs to be noted in order to
prevent excessive bending of the cable, causing additional loss.

Coupler

Light from the cable can be split or combined, using a Coupler. Couplers split light
with minimal loss, from one to two fibers or combine light from two fibers into a single
fiber.

MobileAccess 1000/1200 User’s and Installation Guide 39

Appendix E. Optical Test Procedure

This section describes the methods applied to test fiber optic cable’s optical insertion
loss and return loss.

Fiber Optic Cable Test

Due to the extended distances that analog signal transmissions travel on cable, the
major challenge is to determine the status of the cable.

In order to determine that the cables are functioning, technical personnel need to
perform optical power tests.

The optical power tests covered in this document are:

• Optical insertion loss measurement test

•

Optical return loss measurement test

MobileAccess System Characteristics

The MobileAccess™ system consists of the following characteristics:

• Singlemode fiber

• Wavelength 1310nm

•

Fiber Optic Cable Measurement Tests

Cable can be measured through several procedures. This document describes the
following tests:

• Optical insertion loss measurement test

• Optical return loss measurement test

These tests are intended to be performed by technical personnel that deal with
MobileAccess systems. Other equipment can be used to perform these tests,
however the results have to be the same as will appear in the fiber optic cable test
results table (Table 4-2), at the end of this document.

The insertion loss measurement determines whether the optical signal power
traveling the cable length is strong enough to be received by the photo diode, in the
receiver.

Following the completion of the insertion loss test, the return loss test determines the
optical signal power that returns to the laser. The return power affects the laser,
changing the laser’s base current.

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MobileAccess™ 1000/1200 Adjustments Procedure

Test Equipment

In order to perform these tests, the following equipment is necessary:

•

Light source (for wavelength 1310nm , 0dbm)

• Optical power meter

• Optical coupler (hosed and connectorized)

•

Fiber optic jumper

• Adapter parts for the cable connectors
For information about equipment suppliers, contact MobileAccess.

Optical Insertion Loss Measurement Test

The optical insertion loss measurement tests the attenuation of the cable. The
insertion loss’ value should be minimal and remain in scale to 0.4dB/Km.

The insertion loss measurement can be performed in two methods:

• Two point test

•

Single point test

Method #1: Two Point Test

Connection description: Light source connected at one end of the cable and an
optical power meter at the other end.

Light

source

Optical

power
meter

Figure 4-4: Two Point Test

1. Connect light source directly to the optical power meter.

2. Measure light source signal power, verifying power of 0dBm.

3. Connect light source to cable end.

4. Connect optical power meter to cable at other end.

5. Measure light source signal power using the optical power meter.

6. Calculate the difference between two signals (dB):

(Insertion loss)dB = (Light source signal at one end)dBm – (Measured signal at other end)dBm

MobileAccess 1000/1200 User’s and Installation Guide 41

Adjustments Procedure MobileAccess™ 1000/1200

Method #2: Single Point Test

Connection description: This method assumes that there are two parallel fibers on the path to be
tested. Connect fiber jumper at end of the cable being tested to another parallel cable. Connect
the light source, optical power meter and optical jumper as shown in Figure 4-5. This
measurement can test two cables simultaneously.

Light

source

Optical

power
meter

Connector

Figure 4-5: Single Point Test

Fiber optic jumper

1. Use optic jumper to connect the two cables.

2. Connect light source directly to the optical power meter.

3. Measure the power of light source signal , verify power of 0dBm.

4. Connect a light source and optical power meter to one end of each cable.

5. Measure the power of the signal.

6. Calculate the difference between the two signals in dB

(Insertion loss)dB =(Light source signal)dBm– (Measure signal)dBm

Other Test Equipment

The optical insertion loss measurement test can be performed with more sophisticated
measurement equipment.

For information on other types of test equipment contact MobileAccess.

42 MobileAccess 1000/1200 User’s and Installation Guide

MobileAccess™ 1000/1200 Adjustments Procedure

Optical Return Loss Measurement Test

Connection description: Connect a light source and optical power to the inputs. If the
coupler has one output, connect the tested cable to this output. If the coupler has
two outputs make a pigtail at the second output.

Light

source

Optical

power
meter

1

2

Optical Coupler

"Optical Terminator"

(pigtail)

Figure 4-6: Optical Return Loss Measurement

Measurement Procedure

Measuring Power Input To Cable Being Tested

• Verify that light source power is at 0dBm.

•

Connect a light source to connector #1.

• Connect optical power meter to connector #3.

• Measure signal power (P3), power should be approximately –4dBm.

Measuring Coupler Power Loss

IN OUT

3

Cable Being Tested

4

• Move power meter from connector #3 to connector #2.

•

Move light source from connector #1 to connector #3.

• Measure power loss of coupler (Lc).

Measuring Return Power

To measure return power:

• Move light source from connector #3 to connector #1.

• Connect cable being tested to output connector #3.

•

If coupler has two outputs, then make a pigtail at second output.

• If cable is longer than 100 meter, then cable needs to be isolated.

To isolate cable:

 Find place near test point where winding the cable into a pigtail is possible.

MobileAccess 1000/1200 User’s and Installation Guide 43

Adjustments Procedure MobileAccess™ 1000/1200

 Make pigtail.
 If cable is shorter than 100 meter, then verify that cable is disconnected at end.
 Measure the return light power (P2), connector #2.

Calculating Return Loss

Calculate the difference between the signals in dB.

(Return loss)dB = (P2)dBm – (P3)dBm + (Lc)dB

Results

The following table is to be filled in by technical personnel testing the fiber optic cables.

Table 4-2: Fiber optic Cable Test Results

Test Measurement Pass Range Pass/Fail

Optical insertion loss <0.5 dB/Km
Optical return loss < -50 dB

Summary

If the fiber fails in the optical insertion loss or optical return loss tests, then the
connector needs to be cleaned. Connector cleaning is carried out according to a
standard cleaning procedure. Following cleaning, the fiber needs to be tested again.
If the failure continues in the fiber following cleaning, then the technical personnel
need to refer to the fiber optic cable manufacturer’s troubleshooting guide.If the fiber
passes the optical insertion loss and optical return loss tests, then the tested fiber
optic cable is considered suitable for use with MobileAccess equipment

44 MobileAccess 1000/1200 User’s and Installation Guide