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AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

MBF, Multi Band Repeater

Product Description and User’s Manual

THIS DOCUMENT IS VALID FOR SINGLE-BAND, DUAL-BAND AND TRI-BAND MBF

REPEATERS SUPPORTING THE FOLLOWING FREQUECY BANDS:

LTE 700, 850, 900, 1800, 1900, 2200 and AWS

Single or dual band repeater

Tri band repeater

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

II © Axell Wireless Ltd

No part of this document may be copied, distributed, transmitted, transcribed, stored in a retrieval system, or

translated into any human or computer language without the prior written permission of Axell Wireless Ltd.

The manufacturer has made every effort to ensure that the instructions contained in this document are

adequate and free of errors and omissions. The manufacturer will, if necessary, explain issues which may not

be covered by this document. The manufacturer's liability for any errors in the document is limited to the

correction of errors and the aforementioned advisory services.

This document has been prepared to be used by professional and properly trained personnel, and the

customer assumes full responsibility when using them. The manufacturer welcomes customer comments as

part of the process of continual development and improvement of the documentation in the best way possible

from the user's viewpoint. Please submit your comments to the nearest Axell Wireless sales representative.

Contact Information

Headquarters

Axell Wireless

Aerial House

Asheridge Road

Chesham

Buckinghamshire HP5 2QD

United Kingdom

Tel: +44 1494 777000

Fax: +44 1494 777002

Commercial inquiries

info@axellwireless.com

Web site

www.axellwireless.com

Support issues

support@axellwireless.com

Technical Support Line, English speaking

+44 1494 777 777

Contact information for Axell Wireless offices in other countries can be found on our web site,

www.axellwireless.com

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

About This Manual

This Product Manual provides the following information:

• Description of the Repeater unit

• Procedures for setup, configuration and checking the proper operation of the unit

• Maintenance and troubleshooting procedures

For whom it is Intended

This Product Manual is intended for experienced technicians and engineers. It is assumed that the

customers installing, operating, and maintaining Axell Wireless Repeaters are familiar with the basic

functionality of Repeaters.

Notice

Confidential - Authorized Customer Use

This document may be used in its complete form only and is solely for the use of Axell Wireless

employees and authorized Axell Wireless channels or customers. The material herein is proprietary to

Axell Wireless. Any unauthorized reproduction, use or disclosure of any part thereof is strictly

prohibited.

All trademarks and registered trademarks are the property of their respective owners.

Disclaimer of Liability

Contents herein are current as of the date of publication. Axell Wireless reserves the right to change

the contents without prior notice. The information furnished by Axell Wireless in this document is

believed to be accurate and reliable. However, Axell Wireless assumes no responsibility for its use.

In no event shall Axell Wireless be liable for any damage resulting from loss of data, loss of use, or

loss of profits and Axell Wireless further disclaims any and all liability for indirect, incidental,

special, consequential or other similes damages. This disclaimer of liability applies to all products,

publications and services during and after the warranty period.

Warrantee

All antennas must be installed with Lightning protection. Damage to power modules, as a result of

lightning are not covered by the warranty.

Switching on AC or DC power prior to the connection of antenna cables is regarded as faulty

installation procedure and therefore not covered by the Axell Wireless warranty.

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

IV © Axell Wireless Ltd

Safety to Personnel

Before installing or replacing any of the equipment, the entire manual should be read and understood.

The user needs to supply the appropriate AC or DC power to the OMU System. Incorrect power

settings can damage the OMU System and may cause injury to the user.

Throughout this manual, there are "Caution" warnings. "Caution" calls attention to a procedure or

practice, which, if ignored, may result in injury or damage to the system, system component or even

the user. Do not perform any procedure preceded by a "Caution" until the described conditions are

fully understood and met.

CAUTION! This notice calls attention to a procedure or practice that, if ignored, may result in

personal injury or in damage to the system or system component. Do not perform any procedure

preceded by a "Caution" until described conditions are fully understood and met.

Safety to Equipment

When installing, replacing or using this product, observe all safety precautions during handling and

operation. Failure to comply with the safety precautions and with specific precautions described

elsewhere in this manual violates the safety standards of the design, manufacture, and intended use of

this product. Axell Wireless assumes no liability for the customer's failure to comply with these

precautions. This entire manual should be read and understood before operating or maintaining the

OMU System.

Class 3B Laser

This product is equipped with class 3B lasers, as per definition in EN 60825-1.

Caution!!!

Un-terminated optical receptacles may emit laser radiation.

Do not stare into beam or view with optical instruments.

Optical transmitters in the opto-module can emit high energy invisible laser radiation. There is a risk

for permanent damage to the eye.

Always use protective cover on all cables and connectors which are not connected. Never look

straight into a fibre cable or a connector. Consider that a fibre can carry transmission in both

directions.

During handling of laser cables or connections ensure that the source is switched off. Regard all open

connectors with respect and direct them in a safe direction and never towards a reflecting surface.

Reflected laser radiation should be regarded as equally hazardous as direct radiation.

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Radiation Hazard

This equipment emits radio frequency radiation and can, if used the wrong way, be hazardous for

personnel. Here follows an example of the power densities from an intentional radiator.

For radiation from a general antenna, the power density (S) at some distance is according to the well-

known formula:

For the repeaters described in this handbook the maximum output powers are 5 W for 900 / 1800

MHz and 10 W 2100 MHz. The corresponding power densities using a + 10 dBi antenna as an

example at 1 m will be 4 W/ m² for the 900/1800 MHz output and 8 W/ m² for 2100 MHZ output.

1 m distance from the antenna at these frequencies is used as a minimum distance for practical

exposure of the public. It is also difficult to have a developed EMF at distances closer than 1 m.

According to R&TTE Health requirements referring to the 1999 Council recommendation, the

reference level for the frequency range of 400 – 2000 MHz is f/ 200 W/ m² ( f in MHz ) and above 2

GHz, 10 W/ m².

For the repeaters in this manual the levels are:

GSM 900 (960 MHz) = 4.8 W/m²

DC 1800 (1880 MHz) = 9.4 W/m²

UMTS 2100 (2170 MHz) = 10 W/m².

This means that an installation with a +10 dBi antenna does not exceed the basic restriction levels

according to the recommendations.

For frequencies between 400 and 2000 MHz the ICNIRP occupational guideline level of exposure is f

/40 W/m² (f in MHz), and 50 W/m² for frequencies above 2 GHz.

The ICNIRP levels for the frequency above bands:

GSM 900 (960 MHz) = 24 W/m²

DC 1800 (1880 MHz) = 47 W/m²

UMTS 2100 (2170 MHz) = 50 W/m².

There are no radiation health issues with the above + 10 dBi antenna installations. However, the

repeater is marked with radiation hazard warning.

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

VI © Axell Wireless Ltd

Standards

This document covers both GSM and WDCMA repeaters. These references are valid for respective

repeater type.

ETSI TS 25.106

Universal Mobile Telecommunications System (UMTS); UTRA

repeater radio transmission and reception 3GPP TS 25.106 version

5.8.0 Release 5)

ETSI TS 25.143

Universal Mobile Telecommunications System (UMTS); UTRA

repeater conformance testing (3GPP TS 25.143 version 5.8.0

Release 5)

ETSI EN 301 908-3

Electromagnetic compatibility and Radio spectrum Matters (ERM);

ElectroMagnetic Compatibility (EMC) standard for radio

equipment and services; Part 1: Common technical requirements

ETSI EN 301 489-23

Electromagnetic compatibility and Radio spectrum Matters (ERM);

ElectroMagnetic Compatibility (EMC) standard for radio

equipment and services; Part 23: Specific Conditions for IMT-2000

CDMA Direct Spread (UTRA) Base Station (BS) radio, repeater

and ancillary equipment

EN 60 950 Information technology equipment - Safety - Part 1: General

requirements

EN 301 502

Harmonized EN for Global System for Mobile communications

(GSM); Base station and Repeater equipment covering essential

requirements under article 3.2 of the R&TTE directive (GSM 13.21

version 8.1.2. Release 1999)

ETS 300 342-3

Radio Equipment and Systems (RES); Electro-Magnetic

Compatibility (EMC) for European Digital Cellular

Telecommunications systems. Base Station Radio and ancillary

equipment and Repeaters meeting phase 2 GSM requirements.

R & TTE Directive:

ETS EN 301 502

(ETS EN 300 609-

4/GSM 11.26)

Harmonized EN for Global System for Mobile communications

(GSM); Base Station and Repeater equipment covering essential

requirements under article 3.2 of the R&TTE directive

ETS EN 301 489-8

Electromagnetic Compatibility (EMC) Standard For Radio

Equipment And Services; Part 8: Specific Conditions For GSM

Base Stations

ETS 300 342-3

Electromagnetic Compatibility (EMC) For European Digital

Cellular Telecommunications System (GSM 900 MHz and DCS 1

800 MHz); Part 3: Base Station Radio and Ancillary Equipment

And Repeaters Meeting Phase 2 GSM Requirements

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Electrostatic Sensitivity

Observe electrostatic precautionary procedures.

Caution

ESD = Electrostatic Discharge Sensitive Device

Semiconductor transmitters and receivers provide highly reliable performance when operated in

conformity with their intended design. However, a semiconductor may be damaged by an

electrostatic charge inadvertently imposed by careless handling.

Static electricity can be conducted to the semiconductor chip from the centre pin of the RF input

connector, and through the AC connector pins. When unpacking and otherwise handling the unit,

follow ESD precautionary procedures including use of grounded wrist straps, grounded workbench

surfaces, and grounded floor mats.

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Table of Contents

1 Introduction ................................................................................................................. 1

1.1 General Information on Installation Approach .................................................................. 1

1.2 Models and Ordering Information ...................................................................................... 2

1.3 Characteristics ..................................................................................................................... 2

1.4 ALC ........................................................................................................................................ 3

1.5 Operating Temperature ....................................................................................................... 3

1.6 MBF Interfaces ...................................................................................................................... 3

1.6.1 Securing the Unit ....................................................................................................... 4

1.6.2 External Interfaces..................................................................................................... 4

1.6.3 Internal Interfaces ...................................................................................................... 5

2 Installation ................................................................................................................... 7

2.1 Unpacking ............................................................................................................................. 7

2.1.1 Unpack the Unit ......................................................................................................... 7

2.2 Mount the Repeater .............................................................................................................. 7

2.2.1 Ensure Proper Cooling .............................................................................................. 8

2.3 Grounding ............................................................................................................................. 8

2.4 Ensure Good EMV Protection ............................................................................................. 9

2.5 Fibre Optic Connection...................................................................................................... 10

2.5.1 Cleaning Optical Connectors ................................................................................... 12

2.6 External Alarm and Relay Connections ........................................................................... 13

2.7 Power and Backup Battery ................................................................................................ 14

2.7.1 Connecting the Power Source ................................................................................. 14

2.7.2 230 VAC Power Source .......................................................................................... 15

2.7.3 -48V Power Source Connection .............................................................................. 16

2.7.4 Backup Battery ........................................................................................................ 17

2.8 Power ON ............................................................................................................................ 17

2.8.1 Switching Power ON................................................................................................ 17

2.8.2 Verifying LEDs ......................................................................................................... 18

2.9 Closing and Securing the Repeater ................................................................................. 18

3 Commissioning Advice............................................................................................. 19

3.1 Signal Diagrams ................................................................................................................. 19

3.2 OMU Point of Interface (POI) ............................................................................................. 20

3.3 Downlink POI / OMU DL Attenuator Adjustment ............................................................. 20

3.4 Repeater Downlink Optical Link Adjustment (OLA) ....................................................... 22

3.5 Downlink Repeater Gain Adjustment ............................................................................... 22

3.6 UMTS Signal Measurement ............................................................................................... 24

3.6.1 Bandwidth ................................................................................................................ 24

3.6.2 Traffic ....................................................................................................................... 24

4 Setup .......................................................................................................................... 25

4.1 Open a Local Session ........................................................................................................ 26

4.2 Set Repeater Name (TAG) ................................................................................................. 27

4.3 TCP/IP and Ethernet Communication .............................................................................. 28

4.4 Set-up RF Configuration .................................................................................................... 29

4.5 For Stand-alone Repeaters – Modem Communication .................................................. 31

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

4.6 AEM Addresses .................................................................................................................. 31

4.7 Integration into the AEM .................................................................................................... 31

5 Troubleshooting ........................................................................................................32

5.1 Module LEDs ....................................................................................................................... 32

5.1.1 Control Module LEDs .............................................................................................. 32

5.1.2 F/O Converter .......................................................................................................... 33

5.1.3 Power Supply LEDs ................................................................................................ 33

6 Maintenance...............................................................................................................35

6.1 General ................................................................................................................................ 35

6.2 Preventative Maintenance ................................................................................................. 35

6.3 Trouble Shooting................................................................................................................ 35

6.4 Component Replacement .................................................................................................. 35

6.5 Product Disposal ................................................................................................................ 36

7 Modem Communication ............................................................................................37

7.1 Modem Initialization ........................................................................................................... 37

7.2 Monitoring Modem Connection ........................................................................................ 37

7.3 Scheduled Modem Power Cycling.................................................................................... 37

7.4 Communication via Wireless Modem .............................................................................. 38

7.4.1 Modem Configuration, not using GPRS .................................................................. 38

7.4.2 Modem Configuration, using GPRS ........................................................................ 39

7.4.3 Configuration via PSTN (Fixed) Modem ................................................................. 41

7.5 Troubleshooting Remote Communication ...................................................................... 42

7.5.1 Direct Modem Access ............................................................................................. 43

7.5.2 Trace Modem .......................................................................................................... 43

7.5.3 Manually Answering Incoming Calls........................................................................ 44

7.5.4 Common Problems .................................................................................................. 45

8 Specifications ............................................................................................................48

8.1 Single Band Repeater MBF-S-7/8/9/17/18/19/22 .............................................................. 48

8.2 Dual Band Repeater MBF-D-9-22/8-19/7-17 ..................................................................... 50

8.3 Tri Band Repeater MBF-T-9-18-22/8-17-19 ....................................................................... 52

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Axell MBF (Multi Band Fibre) family of repeaters comprises of three types of fibre fed repeaters:

single-band, dual-band and tri-band. The repeaters are available in various models supporting

frequency bands LTE 700, 850, 900, 1800, 1900, 2200 and AWS.

The MBF repeater RF signal is supplied via an optic fibre connection to the Axell Optical Master

Unit (OMU). The OMU is located at the Base Station RF signal source and converts the RF signal to

an optical signal for routing to Repeaters via a fibre optic connection. Each OMU can support up to

six repeaters.(The OMU is described in detail in the OMU User Manual).

Figure 1-1Standard OMU-Repeater application where one OMU is used

• Single, dual and tri-band models supporting LTE 700, 850, 900, 1800, 1900, 2200 and AWS

• The Repeater door opens to provide access to internal connections

• The door is secured with two screws and a lock

• F/O, power and alarm connections are inserted via the panel interfaces and connected internally

• GND and RF service antennas are connected externally

• Local setup via RS232 connection is accessed internally

• Same mounting brackets are used for either wall or rack mount (different assembly positions)

• Backup battery for ‘last gasp’ modem indication (sending fault error before power failure)

• Can connect to either 110/230 VAC or -48V power

MBF

Repeater

Opto Fiber

FiberOptic

Converters

Server

Antenna

From BTS

via coupler

OMU

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

2 © Axell Wireless Ltd

Each of the three MBF repeater types are provided in a wide range of models. The following tables

list the most models available for single-, dual- and tri-band type repeaters.

The models are named according to the following conventions:

• Letters indicating number of bands: “S” (single band), “D” (dual band), “T” (tri band)

• Numbers indicating frequencies: “7” (700MHz), “8” (850MHz, “9” (900 MHz), “18”

(1800MHz), “19” (1900 MHz), “22” (2100MHz) and “17” (AWS band).

Single Band

MBF-S-7

LTE-700

MBF-S-8

GSM/WCDMA850

MBF-S-9

E-GSM

MBF-S-18

GSM1800

MBF-S-19

GSM/WCDMA1900

MBF-S-22

WCDMA2100

Dual Band

MBF-D-9-22

E-GSM and WCDMA2100

MBF-D-8-19

GSM/WCDMA850 and GSM/WCDMA1900

MBF-D-7-17

LTE700 and AWS

Tri Band

MBF-T-9-18-22

E-GSM, GSM1800 and WCDMA2100

MBF-T-8-17-19

GSM/WCDMA850, AWS and

GSM/WCDMA1900

MBF-T-7-8-19

LTE700,GSM/WCDMA850,GSM/CDMA1900

The following table lists the Composite DL Output Power for the most common bands.

Composite output DL power per band

Band

Composite Output DL Power

850MHz

+37 dBm

E-GSM

+37 dBm*

700MHz

+37dBm

1800MHz

+37 dBm*

1900MHz

+37 dBm

2100MHz

+39 dBm

Gain is defined by the whole

link including the OMU

Adjustable in 1dB steps

Note: In repeaters that share a common downlink fibre for 900MHZ and 1800MHz a minimum of 4

carriers in each band is required for the full composite output power to be attainable maintaining full

ETSI compliance.

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

The repeater has a constant gain in both uplink and downlink paths. The gain is set by defining the

attenuation as described above.

The repeater has a defined maximum output level. If the input signal amplified by the gain set

exceeds the set output limit, an ALC (Automatic Level Control) loop is activated. This ALC ensures

that the amplifier does not add distortion to the radio signal. Below are examples of the ALC function

for one and two carriers.

Note! The MBF repeaters are designed primarily for multi carrier purposes. If the repeaters are run

at full output power over a longer period the convection cooling might not be enough. The repeaters

have a power management function implemented that will step down the power and if needed fully

shut down the amplifier chains until temperature has reached normal values. In situations where a

repeater will be run in such a manner extra cooling can be provided for instance by putting the

repeater in a temperature controlled environment or via external fans.

The MBF unit provide three types of interfaces:

• Securing interfaces – lock and screws for security

• Panel connections to RF, communication and power

• Internal connections for local setup and for connecting optic fibres and power connections that

are routed in from the

ALC one carrier

Input signal, dBm

Output power, dBm

+36,5

+33,8

-24 -16

Gain: 60 dB

+35

ALC two carriers

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

4 © Axell Wireless Ltd

1.6.1 Securing the Unit

The repeaters are secured with two hex

screws (M8) and can also be locked with a

key.

Note! The two screws must be fully

tightened. Failure to do so may affect the

IP65 compliancy and therefore any

warranty.

1.6.2 External Interfaces

The repeater’s interfaces are located on the underside panel.

Note! The external connections at the bottom of the repeater can be protected with a cover which is

screwed in place.

The following table provides a description of the front panel ports and connections.

Port Description

Server Service antenna connection - DIN 7/16” connector, female

Optic SC/APC fibre optic connector through which the optic fibre is routed for

internal connections (section 2.5).

Power Plinth connection for routing power for internal connection (section 2.7)

Alarms Plinth connector for routing external alarms and relay wiring cable for

internal connections (section 2.6).

GND Grounding lug (section 2.3)

Screws

Connectors

Lock

Power Fiber inputGround Server

antenna External

alarms

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

1.6.3 Internal Interfaces

You will need to open the Repeater in order to:

• Connect power and optic fibres

• Connect alarms (if relevant)

• Power up the Repeater

• Connect to the LMT (RS232 connection) for local setup

1-2. Single band repeater with door open

Controller module RS232 local

setup connection. Refer to section

4.1.2 for LED descriptions

Alarms and relay connections.

Refer to section 2.7 for

descriptions.

F/O Converter LEDs (section

4.1.1) and optic connector to

which routed optic fibre is

connected (section 2.6)

Power connections.

Controller module RS232 local

setup connection. Refer to section

4.1.2 for LED descriptions

Rechargeable battery pack

Power and battery switches

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

6 © Axell Wireless Ltd

1-3. Dual-band MBF model

Alarms and relay

connections. Refer to section

2.7 for descriptions.

Two F/O Converters:

LEDs (described in section

4.1.1), F/O connector (section

2.6)

Controller module RS232

local setup connection. Refer

to section 4.1.2 for LED

descriptions

Power connections ( 2.7)

Rechargeable battery pack

Power and battery switches

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

2.1.1 Unpack the Unit

Inspect the shipped material before unpacking the equipment, document any visual damage and

report according to routines.

A delivery of a repeater from Axell Wireless contains:

• Checklist with delivered items

• Repeater

• Mounting brackets

• 4 bolts for attaching repeater to mounting kit

• Cable cover

• Keys to repeater and insex tool for bolts

• Hose for fibre inlet

• CD containing User’s Manual and RMC

Any other specifically ordered item

Mount the repeater on a wall, on a pole or in a rack.

Mount the repeater in an accessible location and in a location that fulfils the environmental

requirements.

The repeater can be mounted on the wall or in a 19 inch rack. The Repeater is delivered with

mounting brackets.

The repeater needs to be mounted tightly to eliminate vibration.

Mounting bracket position for wall

mounting

Mounting bracket position for rack

mounting

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

8 © Axell Wireless Ltd

2.2.1 Ensure Proper Cooling

• Mount the repeater so that heat can be dispersed from it.

• The repeater wall mounting kit ensures an optimum airflow between the wall and the repeater

itself.

• Do not block this air channel as it will cause the MTBF of the repeater to drop dramatically, or

even in the worst case cause the repeater to fail completely.

• If possible use a wall in the shadow to minimize the overall sun loading. If sufficient shielding

cannot be obtained, an additional sun shield should be mounted.

2-1. Example of a sun shield

• Connect the grounding protection.

• Ensure that good grounding protection measures are taken to

create a reliable repeater site.

• Make sure to use adequately dimensioned grounding cables.

The minimum recommended conductive area for a

grounding cable is 16mm2

• The antenna cabling should be connected to ground every

10m by a reliable grounding kit.

• Make sure the grounding product used is suitable for the kind

and size of cable being used.

• Connect the repeater box bolt to the same ground.

Ground

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Caution

If insufficient Electromagnetic Protection is provided,

or if EMV measures are not taken, warranties issued by Axell Wireless are not valid.

Connect the

lightning

protection

The lightning hazard to electric and electronic equipment consists in the interferences of

direct lightning current infections and high surge voltages induced by the electromagnetic

field of nearby lightning channels or down conductors. Amplitudes from cloud-to-earth

lightning amounts to several 10kA and may last longer than 2 ms. The damage caused

depends on the energy involved and on the sensitivity of the electronics systems.

Ensure that lightning protection measures are taken to create a reliable repeater site. Protect

all coaxial cables and power cables from the transients caused by lightning. Fit all cables

with suitable lightning protection devices.

Example of EMV protection for a repeater system

For detailed information please refer to IEC 61024-1 and 61312-1 for international

standards for protection of information systems against LEMP, Lightning Electromagnetic

Pulse, including radio transmitters. They define proper planning, installation and

inspection of effective lightning protection systems.

The Axell Wireless repeaters comply with the EN standard ETS 301 498-8 which

stipulates demands on lightning/surge protection for typical infrastructure telecom

equipment installations.

Several lightning protection devices should be used in series with declining threshold

voltages to help attenuate the pulse component which makes it through the first layer of

protection.

Repeater

Fiber

BTS

-30dB

Coupler

OMU

Antenna

Primary

Protective

Device

Equipotential

Grounding Bar

230VAC/

-48VDC

Protective

Device

The top of

the mast

must be

higher than

the antennas

and be

grounded

properly

The

grounding

path must

have reliable

continuity

and be

dimensioned

correctly

BTS area Repeater area

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

10 © Axell Wireless Ltd

The primary protective device is part of the site installation and is not supplied by Axell

Wireless. Coaxial lightning protection is normally one of these three types: Gas capsule,

High-pass and Bandpass.

There also need to be a protective device installed on the power supply cord.

Protective device installed in connection with the power supply

This product is equipped with class 3B lasers, as per definition in EN 60825-1.

Caution!!!

Un-terminated optical receptacles may emit laser radiation.

Do not stare into beam or view with optical instruments.

Use the following over the complete link between the Repeater and OMU:

• Use angled APC connectors at 8deg angle

• APC type ODF connections

• Mono-mode type fibre

Select fibre

Recommended fibre cable is single mode 9/125.

Connect the fibre

The casing of the repeater is equipped with an inlet. The inlet is designed

to go with a corrugated hose, which is included in the shipment.

The hose, together with the rubber seal meet the protection standard IP65.

1. Run the

fibre

through the

hose

2. Run the

fibre

through

the inlet in

the

repeater

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

3. Connect

the fibre to

the Fibre

Optic

Converter

inside the

repeater

4. Place

the fibre in

the rubber

seal

5. Adjust

the fibre

length

inside the

repeater and

insert the

seal into the

inlet

6. Attach

the hose to

the inlet

Note!

Make sure the fibre is not bent too sharply inside the repeater.

There is room under the optic module to allow for some slack of the

fibre.

Note!

insert and

extract the

hose from

the inlet

press the

side levers.

Make necessary

measurements

Make necessary measurements to ensure a correct installation.

When the cable has been installed, the quality of the optical path should be

checked for optical path loss and magnitude and location of any

reflections. This can be done with an Optical Time Domain Reflectometer

(OTDR). The total return loss should be > 45 dB.

Optical reflections can degrade the noise and linearity of a fibre optic link.

In particular, reflections that reach the laser can be a problem. Keep all

discrete reflections to > 60 dB. The SC/APC connectors are polished to a

return loss >60 dB.

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

12 © Axell Wireless Ltd

Attach the fibre to

the fibre optic

converter inside the

repeater.

Note!

Clean the fibre connector before it is connected, see instruction

below.

2.5.1 Cleaning Optical Connectors

Optical reflections from a discontinuity such as a poor connector interface

appear on an RF spectrum analyzer trace as stable variations in the noise

floor amplitude that are periodic with RF frequency. If the reflection is bad

enough, it could impact the system performance. By far, the most common

cause for a large discrete reflection is a dirty optical connector. A bit of

dust or oil from a finger can easily interfere with, or block this light.

Fortunately, it is very easy to clean the connector.

Be sure to use the correct procedure for the given connector. When

disconnected, cap the FC/APC connector to keep it clean and prevent

scratching the tip of the ferrule.

Alternative 1

Swipe the tip of the ferule 2-3 times

with a cotton swab soaked in

alcohol. Let it air dry.

Alternative 2

Use a product specially designed for

the purpose.

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

The repeater is equipped with an external alarm interface card. The connector plinth for the external

alarms is located at the bottom of the repeater.

The strain relief fitting in is a Pg 13.5 suitable for a 6-12 mm cable diameter.

Connect the alarm cords to the plinth according to the pin layout below (in the standard version pins

14 – 18 are not used).

2.6.1.1 External Alarm

• Four external alarm sources can be connected to the repeater.

• Alarm operating voltage: between 12 and 24VDC.

• Alarm polarity can be configured:

• Active-low - when there is no voltage the alarm indicator will turn red

• Active-high - an applied voltage of between 12 and 24 V will cause the external alarm

indicator to turn red.

• The repeater can supply +15 VDC to an external alarm source through pin 9 and 10. The

maximum allowed load is 100mA.

2.6.1.2 Relay

• Relay (pin 11 and 12) can be connected to an external device to indicate an alarm.

• Can be configured to trigger on any number of internal and external alarms. The maximum

current that can be supplied is 100mA.

1External alarm 1A

2External alarm 1B

3External alarm 2A

4External alarm 2B

5External alarm 3A

6External alarm 3B

7External alarm 4A

8External alarm 4B

9Alarm +15V

10 Alarm 0V

11 Relay Output 1A

12 Relay Output 1B

13 GND

14 NC

15 NC

16 NC

17 NC

18 NC

Pin # Signal

Pin 1

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

14 © Axell Wireless Ltd

Caution!

Make sure the antenna cables or 50 ohm terminations are connected to the repeater’s antenna

connectors before the repeater is turned on.

The image below shows the location of the various power elements. These are described in detail in

the following sections.

2-2 Power Elements Inside Repeater

2.7.1 Connecting the Power Source

• Power Source: 230 VAC 50 Hz, 115 VAC 60 Hz or -48 VDC

• The -48VDC version of the power supply is designed to turn off if the supply voltage falls below

-36V (±1V). It will turn on again as the supply voltage reaches -43V (± 1V).

• The power supply has a switch which allows it to be set in “on” position or in “stand by”.

Note!

A. In the stand by position the repeater is still connected to the power supply but not

operational.

B. On repeaters mounted in an extended box with two power supplies, both power supplies

needs to be switched on.

110/230 V AC power

connections

Power ON/Standby

switch

Backup battery

pack

Battery (BATT) ON/OFF

switch

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

2.7.2 230 VAC Power Source

Connect the power cable to the plinth as show below:

• Phase linked to the brown cable

• Neutral linked to the blue

• Ground to the yellow/green. See illustration below.

Connection Plinth

Phase

/Live

Neutral

Ground

Strain Relief Fitting

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

16 © Axell Wireless Ltd

2.7.3 -48V Power Source Connection

Note:The -48VDC version of the power supply is designed to turn off if the supply voltage falls below

-36V (

1V), not to drain the feeding battery. It will turn on again as the supply voltage reaches -43V

(

1V).

-48V power supply requirements

The 48VDC power supply must comply with SELV requirements, as defined in EN60950, which

implies double isolation. The output power needs to be 48VDC +25%/-15%. The maximum input

current is 8A.

Connect the power cable to the plinth with:

• Negative (-48V) to the uppermost connection

• Positive (0V) to the lower connection.

• Do NOT connect the middle connection.

Recommended cable areas for 48VDC

Distance Cable Area

0 - 10 meters between repeater and

power supply 2,5 mm²

10 – 50 meters between repeater and

power supply 4 mm²

Over 50 meters between repeater and

power supply Recommendation is to reconfigure the

installation, or to make special

arrangements to increase cable area

Connection Plinth

Negative

Positive

-48V

Strain Relief Fitting

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

2.7.4 Backup Battery

• On the Power Supply unit a rechargeable battery pack in mounted. This part also includes

charging and supervision electronics.

• The backup battery will provide the Control Module and modem with enough capacity to send an

alarm in case of input power failure.

• The battery can be switched on and off. The switch is placed adjacent to the main power switch

on the power supply.

• At delivery the back-up battery is connected.

• The battery is replaced by lifting the battery pack out of the crate and disconnecting the cable.

2.8.1 Switching Power ON

Caution!

Make sure the antenna cables or 50 ohm terminations are connected to the repeater’s antenna

connectors before the repeater is turned on.

The rightmost switch is the one that switches the main power. The leftmost is for turning the battery

on/off.

Note! The power switch has two positions; “on” and “stand by”. In the stand by position the repeater

is still connected to the power supply but not operational.

Connector

Switch the repeater on by using the power switches on the power supply.

Note! See caution above!

There are two switches. One is for the battery and one is for the power

Power Switch

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

18 © Axell Wireless Ltd

Note! On repeaters mounted in an extended box with two power supplies, both power supplies needs

to be switched on.

2.8.2 Verifying LEDs

Verify the LEDs from the following modules are indicating correct operation ( 5.1):

• Control module

• F/O converter

• Power supply modules

Close lid, tighten screws and lock repeater, or continue with the next section: Start-up the Repeater.

Note! The two screws must be fully tightened. Failure to do so may affect the IP65 compliancy and

therefore any warranty.

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

To set the proper operating RF levels on the repeaters in the MBF family during commissioning there

are six steps to be carried out for each band of operation.

 Set OMU DL attenuation to adjust the RF level from the BTS to suit the fibre optic converter in

the OMU (UFO-M)

 Run the OLA (Optical Link Adjustment) command for each band to correct for DL optical fibre

loss

 Set the DL attenuation in the repeater to adjust gain following fibre optic converter in the

repeater (UFO-S)

 Set the UL attenuation in the repeater to adjust gain before the fibre optic converter in the

repeater (UFO-S)

 Run the OLA (Optical Link Adjustment) command for each band to correct for DL optical fibre

loss

 Set OMU UL attenuation to adjust the OMU output level to suit the BTS

In the downlink the signal from the OMU enters the fibre optic converter in the repeater that

translates the optical signal to RF. The signal is fed to the Radio Modules. The signals are amplified

in the Radio Modules and further in the separate MCPAs. It is then fed to the combined duplex filter

and out on the server port to the antenna.

In the uplink the signal is amplified in the Radio Modules and translated to an optical signal and fed

back to the OMU.

A tri band repeater works in a corresponding way.

3-1. Single band repeater for E-GSM

Duplex

Filter

Optical

In/Out

Downlink

RF in/out

Fiber Optic

Converter

Radio Module

GSM

MCPA GSM

Uplink

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

20 © Axell Wireless Ltd

3-2. Dual band repeater for E-GSM and UMTS

(

)

The OMU will usually be fed from the donor BTS via an attenuator or coupling network. The

electrical configuration of this OMU Point of Interface (POI) will be system specific depending on

the presentation of the BTS RF ports, the power class of the BTS and whether the BTS itself provides

coverage via antennas/radiating cable infrastructure or if coverage is only via the MBF repeaters.

The important consideration for commissioning is that the correct attenuation exists between BTS

and OMU in order that

 input power limits of OMU ports are not exceeded

 operating levels can be brought into the correct range using the OMU internal attenuators

 isolation is preserved between ports and bands

OMU damage levels are 10dBm RF in to the fibre optic converter.

For some systems the commissioning adjustments may be completely independent (e.g. an MBF Tri

Band repeater fed by separate OMUs, one per frequency band). For other systems (e.g. an MBF Tri

Band repeater fed a by a single OMU carrying all three bands) one adjustment may affect all bands

simultaneously. In such cases certain commissioning actions e.g. optical link adjustment only need to

be carried out once for all bands but the POI must include some means to level the different

frequency bands at the OMU interface ports.

The critical aspect for the correct system operating level is the composite power presented at the

input of the fibre optic converter in the OMU (UFO-M). The illustration below shows the simplest

possible arrangement for a single Tri Band repeater fed by three BTSs - one per band. It is assumed

that the BTS for GSM900 and GSM1800 produce two carriers each of +43dBm and that the UMTS

BTS produces a single carrier of +43dBm.

MCPA UMTS

2 x

Duplex

Filter

Optical

In/Out

Downlink

Uplink

RF in/out

Fiber Optic

Converter

Radio Module

UMTS

Radio Module

GSM

MCPA GSM

Downlink

Uplink

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

The correct interface level at the optical fibre converter is -5dBm/carrier in 900MHz and -

7dBm/carrier in both GSM1800 and UMTS bands. An attenuation of 48dB in 900MHz and 50dB in

1800/UMTS is therefore required between them.

MBF-T-9-18-22

OMU #1

UFOM #3

UFOM #2

RB2200

UMTS

RB900

-17dB

-19dB

MCPA UMTS

+40dB

+24dB-1dB

+18dB

Atten=1

Atten=4

(Max Gain=25dB)

+40dB

MCPA GSM900

-1.5dB

-17dB

-1dB

-1dB-17dB

-30dB

UMTS:

+43dBm

GSM900:

2x+43dBm

0..10dB

optical

2x+12dBm

(IL=16dB)

(IL=14dB)

(Max Gain=22dB)

2x-5dBm

2x-4dBm2x+35.5dBm2x+34dBm

+12dBm-7dBm

0dBm+40dBm+39dBm

RB1800MCPA 1800

Atten=5

+40dB

+20dB-1.5dB

2x+35.5dBm

2x-4dBm

-19dB

-1dB

(IL=16dB)

-17dB

GSM1800:

2x+43dBm

2x-7dBm

2x-24dBm

2x+12dBm

UFOSAtten: 0-20dB

Pilot Level

UFOS

Atten=3

Det Pwr

UFOM #1

Pilot tone

ANT

UFOSAtten: 0-20dB

Pilot Level

UFOSAtten: 0-20dB

Pilot Level

2x-22dBm

(Max Gain=25dB)

-24dBm

OMU #2

UFOM #3

UFOM #2

0..10dB

optical

UFOS

Atten=3

Det Pwr

UFOM #1

Pilot tone

OMU #3

UFOM #3

UFOM #2

0..10dB

optical

UFOS

Atten=3

Det Pwr

UFOM #1

Pilot tone

GSM1800

-30dB

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

22 © Axell Wireless Ltd

It must also be kept in mind that the OMU might have separated input/output ports for each band

(UL/DL) while the interface with the BTS may well be duplex. In that case some duplexing network

must be provided to allow these to be brought together. If there is more than one operator’s BTS per

band the loss of any combining network and any equipment room cabling also becomes part of the

overall attenuation required to reach the correct interface level in each frequency band.

The illustration on the next page shows a more complicated arrangement where the same three BTSs

feed multiple MBF repeaters (up to 6 is possible using the standard splitter card which fits the OMU

rack). In this case an OMU per frequency band is shown. The internal splitter has an insertion loss of

14 or 16dB depending on frequency band. This loss is again a contribution to the overall attenuation

which must be provided between BTS and the input ports of the UFO-M for the correct operational

levels to be achieved.

The interface levels must be modified to maintain the same composite power if a greater number of

carriers is to be applied from the BTS.

The DL POI / OMU Adjustment must be made considering the fully loaded condition – e.g. a BTS

capacity of 8 carriers must include a back off of 6dB compared to the 2 carrier level and -

11dBm/carrier is then the correct UFO-M drive level for GSM 900. The same rule for back off

applies in other bands.

Note that a UMTS BTS at idle (no traffic) will be radiating only a pilot – approx -10dB compared to

the average power when it is in traffic. See also section about UMTS Signal Measurement below.

(

)

The optical link between the UFO-M of the OMU and the UFO-S in the repeater is equipped with a

calibrated pilot tone transmitter/receiver which enables compensation for the loss of the optical fibre

plant between them.

The OLA procedure requires a computer running Axell RMC software and an RS232 connection to

the LMT Port of the repeater controller.

Start the RMC and login to the repeater as described in the appropriate section of the handbook. Click

on the Actions tab on top of the RMC screen. A drop down list will appear where a command will be

found to execute the optical link adjustment for each UFO-S module that is fitted to the repeater.

Click the command for the desired optical link and following a short delay (2-3 secs) an information

screen will be shown describing the result of the automatic setup process.

This procedure is described in the OMU Manual section 4.10.

When the DL POI levels and the repeater optical links have both been set up as described in the

foregoing the MBF repeater set at maximum gain should produce a composite signal level at the

output connector of +37dBm for GSM900 and 1800 and +39dBm for UMTS.

The RMC provides sub screens for each band where the downlink power from UFO-S optical

receiver /input to the DL radio board and the composite output power level from the MCPA can be

viewed.

The power amplifier for each frequency band can be enabled /disabled and the preset DL attenuation

in the radio board for each band can be adjusted. A saturation status indicator (red/green) shows

whether the radio board ALC is in operation. This indicator should be green. A red indication

indicates overdrive the cause of which should be investigated and rectified.

In each band the DL output power per carrier should be measured using a spectrum analyzer.

Allowing for the maximum DL carrier quantity in each band the composite level per band under full

loading should be calculated to ensure it does not exceed the rated maximum otherwise ALC will be

in operation when traffic levels are high. See also section about UMTS Signal Measurement below.

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

OMU

MBF-T-9-18-22

UFOM #3

UFOM #2

RB2200

GSM900

UMTS

RB900

-17dB

-19dB-4dB

MCPA UMTS

+40dB

+28dB-1dB

+22dB

Atten=1

Atten=4

(Max Gain=29dB)

+40dB

MCPA GSM900

+4dB-1.5dB

Split

-17dB

-1dB

-1dB-17dB

-30dB

UMTS:

+43dBm

GSM900:

2x+43dBm

0..10dB

optical

2x+12dBm

(IL=16dB)

(IL=14dB)(Max Gain=26dB)

2x-5dBm2x-22dBm2x-26dBm2x-4dBm2x+35.5dBm2x+34dBm

+12dBm-7dBm-24dBm-28dBm0dBm+40dBm+39dBm

RB1800MCPA 1800

Atten=5

+40dB

+24dB-1.5dB

-4dB

2x+35.5dBm

2x-4dBm

-19dB

-1dB

(IL=16dB)

-17dB

GSM1800:

2x+43dBm

2x-7dBm2x-24dBm

2x-28dBm

(Max Gain=29dB)

2x+12dBm

UFOSAtten: 0-20dB

Pilot Level

UFOS

Atten=3

Det Pwr

UFOM #1

Pilot tone

Comb

Netw

ANT

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

24 © Axell Wireless Ltd

The UMTS signal carries wideband and complex modulation and its properties vary depending on the

level of traffic carried.

3.6.1 Bandwidth

The first issue is the wideband nature of the signal. It occupies around 3.8MHz and measurements

through a narrower filter will reduce the apparent power level since only a portion of the signal

reaches the detector in the test equipment.

Equipment that includes a UMTS/3G measurement personality simplifies the task considerably.

Usually a stored configuration for power measurement will integrate many samples taken using a

narrower filter to display the correct power level for the bandwidth of the signal. Settings can easily

become corrupted however leading to erroneous results. In such cases following the manufacturers

instructions in detail is advised.

Measuring with a simple spectrum analyzer must use a wider resolution bandwidth than 3.8MHz or

else a bandwidth correction factor has to be applied to the observed result. E.g. if measuring with a

300kHz RBW the power level in the centre of the signal would appear to be around 11dB lower than

actual (10Log 3.84/0.3).

3.6.2 Traffic

A further complication is that the power level of a UMTS signal depends on the traffic level being

carried. UMTS carrier power is usually quoted as average values e.g. a 5Watt or 37dBm signal can

contain peaks up to 10dB greater when traffic is high. An idling base station carrying no traffic

radiates only a Pilot in which case the power observed is around 10dB below the average value with

traffic.

Advanced test equipment that can measure the different code power components in the UMTS signal

avoids this problem but more often in the field repeater commissioning must be done when only

simple test equipment is available. This leads to the need to know and allow for the state of traffic

when making repeater setup and diagnostic measurements. It is obvious that adjusting a repeater to

maximum rated output power by using BTSs that are idling radiating only the pilot will lead to

overloading when they are in traffic.

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

26 © Axell Wireless Ltd

Connect to the LMT

port

Connect the computer to the LMT port via a DB9 male connector with serial RS232

interface.

The communication parameters are set automatically by the RMC

Select “Cable”

connection and

communication

port

Enter user name

and password

Several users at a time can be logged on to a Repeater, for instance one

locally via the RS232 interface and one remotely via modem or Ethernet.

There is one default user name and password defined for the repeater..

User Name Password

avitec AvitecPasswd

Note!

Both the user name and the password are case sensitive.

Note!

Do not use the number pad when entering numbers.

Note!

Failed login attempts are logged. Default maximum number is 8. It is

decremented by one every hour, which means that it takes one hour after the

last failed attempt before a new try can be made.

LMT Port

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

The Console mode

view appears

The console mode displays a large number of repeater parameters and

contains a number of console pages. It adjusts its user interface to adapt

to the features of the connected repeater.

(

)

The TAG can be chosen freely to give the repeater a name that is linked to the location, the site name,

etc. The TAG may contain up to 30 characters including spaces.

Select

“Configuration” and

“Product”

Insert the repeater’s

name (TAG) in this

box.

Note! Do not assign an ID. The AEM will do this automatically when the

repeater is integrated in the AEM.

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

28 © Axell Wireless Ltd

A TCP/IP communication is run over a company’s network. Therefore each company needs to define

the details regarding the configuration, IP addresses, etc. For more information please refer to

Common Commands and Attributes, section 13 Network Configurations.

Select

“Configuration” and

“Communication”

Set IP address and

other relevant

information here

In these screens the

Ethernet and/or DNS

Gateway parameters

can be set

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

-u

Configuration of the repeater amplification can be made locally. If the repeater is connected to an

OMU the configuration can also be made via this OMU. See OMU User’s Manual.

Note! This is an example from a single band repeater. Other repeaters will have similar features.

Ensure online

communication

with the repeater

Select “RF/Status” window

Alarms and general

information

Uplink attenuation

Uplink input and

output power

Downlink

attenuation

Downlink input

and output power

This shows a single band repeater with no RF signals

Check that the fibre

is OK

Make sure there are no alarms relating to the fibre.

Set attenuation level

in uplink and

downlink to a

maximum

Choose the maximum attenuation value from the drop down menu.

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

30 © Axell Wireless Ltd

Configure the

downlink

Lower the attenuation level step by step until the desired output power level is

reached. In this example +33 dBm. Zero attenuation is the same as maximum gain.

Note! Please also consult the OMU User’s Manual.

Initiate a fibre loss

elimination

This is done from the OMU by sending a pilot tone to the repeater and calculating the

loss in the fibre link. This loss is compensated for automatically. The system will

behave as if there is no loss at all in the fibre link.

Configure the

uplink

In the uplink direction the attenuation needs to be set based on a measurement of a

known signal which is transmitted through the repeater and the OMU as well as the

fibre. There are two ways of performing this measurement.

Alternative 1

Use a signal generator to insert a signal of approximately -70dBm into the repeater’s

server antenna port. Measure the signal level on the BTS or on the coupler and adjust

the attenuation so that the total gain in the uplink is close to 0dB. (At 0dB gain the

signal level at the coupler should be -40dBm and on the BTS -70dBm in this

example.)

Alternative 2

Use a signal generator to insert a signal of approximately -70dBm into the repeater’s

server antenna port. Log into the OMU and monitor the uplink via the RMC. This

measurement is not as accurate as alternative 1.

Note! If several repeaters are connected to the same OMU the total gain in each

chain should be slightly lower than 0dB not to insert too much noise into the BTS.

Note!

For in-depth instructions for commissioning of an OMU-Repeater system please

contact your Axell Wireless representative.

-19.0dBm

33dBm

Repeater

Signal

Generator

Fiber -70dBm

BTS

-30dB

Coupler

OMU

-40dBm

-70dBm

Alternative 2: Use the RMC to

measure the uplink at the OMU

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

-a

–

MODEM communication is relevant only for Repeaters installed in stand-alone mode. If the

repeater is fibre fed and is set up as a slave- this section is not relevant since the remote

communication is handled by the node master – in most cases an OMU.

For instructions on modem setup and communication, refer to Chapter Modem Communication.

The Control Module can be configured with two different addresses (telephone numbers) to which

alarms and reports are delivered. In case the repeater cannot deliver alarms and reports to the primary

address, the next call will be made to the secondary address.

A fallback functionality is available, which means that the Control Module falls back to the primary

address after a configurable number of minutes. If this interval is set to 0, the fallback will not be

performed. A user can always force the Control Module to fall back to the primary address.

Note! When the repeater is integrated to the Axell Element Manager system, these addresses are set

by the AEM, why they need not be configured during site installation.

When the repeater has been installed at site and the remote communication has been enabled, the

repeater can be integrated to the Axell Element Manager. This is done by the operator of the AEM.

After entering the telephone number to the repeater, the AEM dials up the repeater, downloads all the

repeater parameters and statuses into a database. When all parameters have been downloaded, the

AEM configures the repeater with the telephone number where alarms and reports should be sent,

and optionally with a secondary telephone number where the repeater can dial in case connection to

primary number fails.

When heartbeat reports and alarms are sent from the repeater to the AEM also the latest information

about the status and RF-configuration is included. This means that the AEM operator always has

information about the current status in the AEM database (and do not need to call the repeater to find

this out).

Note! Once the repeater is integrated to the AEM, all changes to the repeater should preferably be

done from the Axell Element Manager in order to ensure that the database always contains correct

information.

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

32 © Axell Wireless Ltd

5.1.1 Control Module LEDs

The Control Module has four LEDs which give information regarding

the status of the OMU.

If the OMU is configured for Ethernet communication the two LEDs

Modem Power and Modem Status do not fill any function and can be

disregarded.

Blue LED - Login

Quick flash Control Module switched on, someone logged in locally and/or remotely

Off (except for a quick flash every 10th

second) Control Module switched on, no one logged in

Off (permanent) Control Module switched OFF

Red LED - Status

Quick flash Control Module switched on, one or more errors/alarms detected

Off (except for a quick flash every 10th

second) Control Module switched on, status OK

Off (permanent) Control Module switched off

Green LED – Modem Status

Depending on type of call:

Voice call: Connected to remote party

Data call: Connected to remote party or exchange of parameters while

setting up or disconnecting a call

Flashing

(irregular)

Indicates GPSR data transfer. When a GPRS transfer is in progress the LED

goes on within 1 second after data packets were exchanged. Flash duration

in approximately 0.5s.

75ms on/75ms off/75ms on/3s off

One or more GPRS contexts activated

75ms on/3s off

Logged to network (monitoring control channels and user interactions). No

call in progress

600ms on/600ms off

No SIM card inserted, or no PIN entered, or network search in progress, or

ongoing user authentications, or network login in progress

Off Modem is off

Modem Status

Modem Power

Status

Green LED – Modem Power

On Modem Power is on

Off Modem Power is off

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

5.1.2 F/O Converter

There are 6 LEDs on

the module to indicate

the status.

LED 1, Power, Green

Unit is powered on

Off

Unit has no power

LED 2, Error, Red

Error detected

Off

No error

LED 3, UL Data, Yellow

Communication is ongoing in the uplink direction

Off

No communication

LED 4, DL Data, Yellow

Communication is ongoing in the downlink direction

Off

No communication

LED 5, Opto Rx, Green

Received RF signal on fibre channel is above threshold

Off

Input level below threshold

LED 6, Opto Tx, Green

Transmitted RF signal on fibre channel is above threshold

Off

Output level below threshold

5.1.3 Power Supply LEDs

This section provides a detailed description of the LEDs and examples of faults.

LED 1, Input Power, Green

Slow flash Power supply unit operating on AC or DC

OFF Power supply unit not operating

LED 2, +6V, Red

Slow flash (every 10 seconds) +6V power supply operating

Quick flash +6V power supply not operating or operating with

malfunction

LED 3, +15V, Red

Slow flash (every 10 seconds) +15V power supply operating

Quick flash +15V power supply not operating or operating with

malfunction

LED 4, +28V, Red

Slow flash (every 10 seconds) +28V power supply operating

Quick flash +28V power supply not operating or operating

with malfunction

PWR

ERR

UL Data

DL Data

Opto Rx

Opto Tx

Input

Power +6V +15V +28V

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

34 © Axell Wireless Ltd

Examples

LED 1 is flashing slowly, LED 2 – 4 are flashing slowly

(once every 10 seconds)

=> power supply unit is operating without problem

LED 1 is flashing slowly, one or two of the red LEDs

are flashing quickly

=> Input power is operating but there is a problem with

some of the other voltages

LED 1 is flashing slowly, all of the red LEDs are

flashing quickly

=> Input power is out and unit is operating on backup

battery

Input

Power +6V +15V +28V

Input

Power +6V +15V +28V

Input

Power +6V +15V +28V

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Caution

Please be aware that the equipment may, during certain conditions become very warm and can

cause minor injuries if handled without any protection, such as gloves.

Caution

Risk of explosion if battery is replaced by an incorrect type.

Dispose of used batteries according to local laws and instructions.

Class 3B Laser

This product is equipped with class 3B lasers, as per definition in EN 60825-1.

Caution!!!

Un-terminated optical receptacles may emit laser radiation.

Do not stare into beam or view with optical instruments.

The system normally operates without any operator intervention or maintenance. If in the unlikely

event of any unit failure, the faulty repeater should be replaced. A failed unit can be removed and

replaced with a spare while the rest of the system (other repeaters) is still operating. However, the

power supply of the failed repeater should be isolated from the power before anything is replaced.

In the event of a malfunction in the system, the status of the antenna systems as well as the continuity

of the cabling should be checked before replacing any modules within the repeater.

The repeater does not require preventative maintenance apart from changing the battery once every

three years.

In the event of a failure Axell Wireless’s support service should be contacted for advice on a possible

module replacement or other action to be taken.

Caution!

If a shipment of a repeater back to Axell Wireless is made within the period of

guarantee the original packing must be used.

None of the modules in the repeater can be replaced without removing the repeater from its mounting

and opening the cover of the repeater.

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Disposal of this product must be handled according to all national laws and regulations. For detailed

information regarding materials, please refer to Axell Wireless.

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Note! This section is relevant only for Repeaters installed in stand-alone mode. If the repeater is

fibre fed and is set up as a slave- this section is not relevant since the remote communication is

handled by the node master – in most cases an OMU.

The Control Module is responsible for enabling the power to the modem, unlocking the SIM-card,

using the configured PIN-code and making sure the modem is logged in to the network correctly.

Depending on network configuration and modem usage, the modem might require different modem

initialization strings to work properly. This modem initialization string is set and verified during

repeater setup.

After a power failure, or upon user request, the Control Module performs a full initialization of the

modem. This consists of three steps:

 If the SIM-card in the modem has the PIN code enabled, the Control Module unlocks the PIN

code. In case wrong PIN-code is configured, the Control Module will not try to unlock the SIM

again until the PIN-code is changed. This avoids the SIM card being locked by a Control Module

repeatedly trying to unlock the SIM with the wrong PIN code.

 Once the SIM is unlocked, the Control Module waits for the SIM to log in to the network.

Depending on signal quality and network configuration this might take a while. The Control

Module will wait a configurable number of seconds (default 50 seconds) for the modem to login

to the network. In case no network is found, a modem power cycle will be initiated.

When the modem is successfully logged in to the network, the Control Module configures the modem

with the modem initialization string as configured when setting up the remote configuration. The

modem initialization string is a network dependent string. The default string is suitable for most

networks, but some networks might require some tweaking of this string.

The Control Module constantly monitors the status of the modem connection to ensure that it is

working properly, and that the modem is logged in to the network.

In case the modem is not registered to the network, or the Control Module cannot properly

communicate with the modem, a power cycling of the modem is initiated, after which the modem

will reinitialized.

In addition to polling the modem to ensure the repeater online status, the Control Module can be

configured to perform an automatic power cycling on a scheduled time of the day. Power cycling the

modem ensures the latest network configuration for the modem, such as the HLR Update Interval etc.

Note! By default, the scheduled modem power cycling is disabled.

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

There are two different ways of communication for a wireless (GSM) modem:

 Using data call / modem connection.

Note! This requires the SIM-card in the modem to be configured with data service.

 Using SMS to configure the repeater with simple text messages

Note! SMS functionality is not implemented in this SW release.

The Axell Element Manager always uses data call communication with the repeater, why all repeaters

being controlled by the AEM must have data service enabled on the SIM card.

Configuring the repeater to send alarms and reports via SMS it is still possible to establish data calls

to the repeater, as long as the SIM card is data service enabled.

7.4.1 Modem Configuration, not using GPRS

Select

“Configuration”

and

“Communication”

Select Data Call

Initialization string

Connect times

AEM addressed are

set via the AEM

Select Data Call

Set the modem initialization string. This string differs between networks.

Primary recommendation is AT+CBST=71,0,1;\Q3. If remote

communication cannot be established try 7,0,1 or 0,0,1 or 7,0,3. For more

information please refer to the section on Troubleshooting Remote

Communication.

Tick “Enable Automatic Modem Power Cycling” for the modem to be

power cycled once every 24 hours. Set the time at which the modem should

be tested. This function ensures that the repeater always is logged in to the

network.

2004-01-01

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

7.4.2 Modem Configuration, using GPRS

Select

“Configuration”

and

“Communication”

Select GPRS

Initialization

string

Connect times

AEM addressed

are set via the

AEM

Configure GPRS

Select GPRS

Set the modem initialization string. This string differs between networks.

Primary recommendation is AT+CBST=71,0,1;\Q3

Tick “Enable Automatic Modem Power Cycling” for the modem to be power

cycled once every 24 hours. Set the time at which the modem should be

tested. This function ensures that the repeater always is logged in to the

network.

Click on Configure…

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Each parameter is described in Common Commands and Attributes, section

14 GPRS Configurations.

Set the Access Point Name. It needs to be defined by the telecom operator

Set Maximum Receive Unit and maximum Transmission Unit. These differ

depending on access type: 576 for GSM, 1476 for EDGE and 1500 for

WCDMA.

Click on Close, and then on “Yes”.

Wait for the modem to restart. This can take a few minutes.

When the modem settings are ready the LED turn green.

7.4.2.1 Modem Verification

When the remote configuration has been set up the communication can be verified using the modem

feature of the RMC and dialling the data number. The remote communication is verified as soon as a

successful remote login to the repeater has been performed.

However, as a first step, it is recommended to verify that the modem is initialized correctly. After

configuring the modem using the RMC, make sure to initiate a power cycling of the modem. This is

done from the RMC menu.

Click on the drop-down menu

Actions, choose Power Cycle

Modem on Logout

An immediate power cycling is initiated after which the modem is initialized and registered onto the

network. The modem is now ready for remote access.

Ensure a successful configuration by observing the modem LED as described below.

Note! This LED behaviour is valid only for GSM modems. Other modem types will be added in later

editions.

Green LED – Modem Status

Depending on type of call:

Voice call: Connected to remote party

Data call: Connected to remote party or exchange

of parameters while setting up or disconnecting a

call

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Flashing

(irregular)

Indicates GPSR data transfer. When a GPRS

transfer is in progress the LED goes on within 1

second after data packets were exchanged. Flash

duration in approximately 0.5s.

75ms on/75ms off/75ms on/3s off

One or more GPRS contexts activated

75ms on/3s off

Logged to network (monitoring control channels

and user interactions). No call in progress

600ms on/600ms off

No SIM card inserted, or no PIN entered, or

network search in progress, or ongoing user

authentications, or network login in progress

Off

Modem is off

Verify the remote communication either by having someone attempting to integrate the repeater from

the Axell Element Manager, or by dialling the repeater using the Repeater Maintenance Console.

Note! It is very important to dial the data number of the SIM. In case the voice number is dialled, the

call is answered, but almost immediately the call will be hung up.

7.4.2.2 SIM-card Using Single Numbering Scheme

If the network is configured using Single Numbering Scheme (SNS), some special considerations

apply.

The repeaters are by default configured so that networks using SNS always will have calls routed to

the data service in the modem. When dialling from within the network to a repeater having an SNS-

configured SIM will operate normally, since the call originator informs the system that the bearer is

of type DATA. However, when dialling from outside the network trying to connect to the repeater

can be difficult. Depending on the interface to the roaming network or to the PSTN network if an

analogue modem is used, the bearer type can default to voice. If the bearer is set to voice, the data

service cannot be converted to DATA, and a call setup cannot be completed.

Note! This is not a repeater related problem; the solution is to verify how the external network

interfaces handles the VOICE vs. DATA bearer type.

7.4.3 Configuration via PSTN (Fixed) Modem

Also for PSTN modems data call shall be used.

Select

“Configuration”

and

“Communication”

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Select Data Call

Initialization string

Connect times

AEM addressed are

set via the AEM

Tick “Enable Automatic Modem Power Cycling” for the modem to be

power cycled once every 24 hours. Set the time at which the modem should

be tested. This function ensures that the repeater always is logged in to the

network.

Please also refer to the document Common Command and Attributes for guidance.

Since many networks have their own “personality”, performing first time configuration of the remote

communication sometimes requires tweaking of the modem parameters.

This section describes some trouble shooting techniques if configuring the repeater for remote access

fails.

The illustration below is a simplified schematic of the remote communication between a GSM

modem in a repeater and an analogue modem. The analogue modem in the computer communicates

with the Interworking Function Unit (IFU), which is the GSM network analogue network interface.

The call is routed via the switch centre over the air interface to the data call number in the SIM-card

of the GSM module.

The Control Module is responsible for establishing connections with the Axell Element Manager, and

to answer incoming calls to the repeater.

As described in previous sections, the Control Module only accepts one login at a time, either via

Local Maintenance port (LMT) or modem connection. Hence, when verifying the remote access of

the repeater, it is important to log out from the repeater locally before trying to access the repeater

remotely.

2004-01-01

ATE0S0=0

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

7.5.1 Direct Modem Access

To allow for advanced trouble shooting of the communications, it is possible to access the modem

directly via the Control Module from a laptop computer.

HyperTerminal™. When the login is completed, select Terminal Mode, this will give access to the

repeater command prompt in the same way as with HyperTerminal.

When the repeater prompt is accessible, type in the command

ACCESS MODEM <Enter>.

When typing ACCESS MODEM, the controller will send all the characters that are typed directly out

to the modem port. All characters replied back from the modem will go directly to the LMT port and

back to the computer.

To abort an ACCESS MODEM session, press three ‘-‘ in a row (all three within one second) to come

back to the repeater command prompt.

Note! When accessing the modem port the modem might be configured with “echo off”, meaning

that the characters entered will not be echoed back to the screen. In order to enable “echo”, press

Enter.

Type

ATE1 <enter>

(invisible)

The modem replies with

indicating that the echo is enabled. All characters entered will now be echoed back to the terminal

program.

7.5.2 Trace Modem

For troubleshooting purposes it is possible to trace the actual progress of initializing the modem. This

trace is useful when having problems with the modem initialization.

Go to Terminal Mode and type

TRACE MODEM

Radio

LinkProtocol

(RLP)

Base Station

LaptopLaptop

Control module in

Axell Wireless

Repeater

Switch

Centre

ModemModem RS232

Interworking

Function Unit

(IFU)

LaptopLaptop

RS232 cable

Control Module

GSM

Module

LMT Port

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

To end session type CTRL-Z

7.5.3 Manually Answering Incoming Calls

It is possible to manually answer incoming calls without involving the repeater software at all, to

verify that the remote access and the network itself works as intended. In order to verify the remote

communication, make sure to have someone stand by to dial up the repeater with a terminal

emulation program, for example HyperTerminal™.

Go in to Direct Modem Access as described earlier. When in direct access mode, ask the person

standing by to dial up the repeater.

As soon as a call is received, the text

RING

will repeatedly be displayed on the screen.

Type

ATA <enter>

This will inform the modem to answer (ATtention Answer).

When the connection is established, a connect message will be displayed including the connection

speed. Sometimes the information comes together with some miscellaneous information, such as

error correction protocols etc.

Note! Make sure the remote peer dials the Data Call number

If the voice number is dialled instead of the data number, or if the modem contains an illegal modem

initialization string, the message

NO CARRIER

will be displayed almost immediately.

Try to change the modem initialization string. The modem initialization string mainly used to

configure the remote communication is AT+CBST.

Successful modem initialization strings used by Axell Wireless includes (most common first):

AT+CBST=71,0,1;\Q3

AT+CBST=7,0,1;\Q3

AT+CBST=0,0,1;\Q3

AT+CBST=7,0,3;\Q3

Once the modem initialization string is entered, try again to dial up the repeater. For details on the

different modem initialization strings, please refer to the modem’s user guide.

If the setup is successful, the connect message will be brought up;

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

CONNECT 9600

This means that an online connection is established to the remote peer. From now on, all characters

typed on the keyboard will end up on the remote peer’s screen. Similarly, all characters typed by the

remote peer will be displayed on the screen.

In the example, the incoming call

was successfully answered, and the

remote user entered the text

message.

In order to come back to modem command mode, press +++ (three pluses) rapidly (within one

second).

Receiving

means that the modem is back in command mode.

Type

ATH <enter>

This terminates the connection to the remote peer. The message

NO CARRIER

will be displayed.

7.5.4 Common Problems

7.5.4.1 Problem 1

When enabling the remote access for the repeater, the modem fails to log in to the network.

7.5.4.2 Solution

Signal strength from the donor site is too low. The signal strength can be read directly from the

modem. Go in to Direct Modem Access as described earlier. Use the command AT+CSQ

(documented below) to read out the signal strength.

In order to have good signal quality, Axell Wireless recommends that the signal strength should be

better than -95 dBm. If signal strength is lower, try to adjust the antennas to get a better signal

strength from the donor.

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Documentation of +CSQ command from a modem’s manual.

In the example the reply to

AT+CSQ is 0,7 meaning 7*2 dB

above -113 dBm; the modem

detects a signal level of -99 dBm.

7.5.4.3 Problem 2a

Repeater is configured properly, and answers the incoming call, but when trying to dial the repeater

using an analogue mode, no modem handshaking is heard from the dialling modem.

7.5.4.4 Problem 2b

When dialling the repeater, the repeater answers the incoming call, but no connection is established,

and after a while the repeater disconnects the call.

7.5.4.5 Solution

The most common cause is that the number called is the voice number of the SIM, not the data

number. Therefore, make sure to dial the data number.

If data call is used, the problem probably is an illegal modem initialization string.

In order to change the modem string, go to the repeater command prompt. Try changing the modem

initialization string and log out to let the controller reinitialize the modem.

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

If problem remains, try a few different modem initialization strings. Axell Wireless has been

successful with the following modem initialization strings:

AT+CBST=71,0,1;\Q3

AT+CBST=7,0,1;\Q3

AT+CBST=0,0,1;\Q3

AT+CBST=7,0,3;\Q3

Please refer to the modem manual for detailed description of the modem initialization strings.

7.5.4.6 Problem 3

It is possible to call the repeater from another GSM mobile, but not from an analogue modem.

7.5.4.7 Solution

This problem is most likely related to the modem configuration and/or the configuration of the IFU

unit. Try to decrease the communications speed and make sure that the modem error correction is

supported by the IFU. Verify the IFU configuration to see if there are any known problems with the

modem connections.

7.5.4.8 Problem 4

When dialling the repeater, or when the repeater is dialling the Element Manager, the connection is

terminated before the handshaking is completed.

7.5.4.9 Solution

When a repeater is answering an incoming modem call, or calling up the OMC to deliver an alarm or

a report, the repeater will wait a configurable number of seconds for the call to be established. If no

communication is established within this time, the call will be hung up. If this interval is set too low,

the handshaking is terminated too fast. In the RMC, verify the Modem Connect Time to see that it is

set to at least 30 seconds.

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Note! All data is subject to change without prior notice.

F-

-S

S-

-7

Electrical Specifications

LTE 700 GSM/WCDMA

850 E-

GSM GSM1800 GSM/WCDMA

1900 AWS WCDMA2100

UL 698-716MHz

and

777-787MHz

824 – 849 MHz 880 –

915

MHz

1710 -

1785 MHz 1850 - 1910

MHz 1710-1755

MHz 1920 - 1980 MHz

DL 728-756MHz 869 – 894 MHz 925 –

960

MHz

1805 -

1880 MHz 1930 - 1990

MHz 2110-2155

MHz 2110 - 2170 MHz

Operational

bandwidth 28MHz/18MHz/

10MHz 25MHz 35

MHz 75MHz 60 MHz 45MHz 60 MHz

Composite

Output Power

+37dBm +37 dBm +37

dBm +37 dBm +37 dBm -39 dBm

(for PAR of

8.5 dB)

+39 dBm (for

PAR of 8.5 dB)

Ripple in pass band (all bands) < 2 dB

Noise figure UL (all bands) 3 dB typical (maximum gain)

Propagation delay (all bands) < 2 µs

Modulation Accuracy at nominal output power

LTE <3%EVM RMS

GSM / GMSK < 2.5 ° RMS and < 10 ° peak

EDGE / 8-PSK < 3 % EVM RMS

WCDMA/EVM < 12.5% RMS (composite according to ETSI TS 25.106

with TM 1/64 DPCH)

WCDMA/PkDCE < -33 dB (according to ETSI TS 25.106 with TM 1/64

DPCH and spreading factor 256)

Gain UL/DL (all bands) Adjustable in 1 dB steps

System Impedance 50 ohm

Return Loss at Antenna Connection > 14 dB

Antenna connectors DIN 7/16

Electrical ratings 230 VAC, 50 Hz or -48 VDC

Power Consumption 140 W

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Optical Module Electrical Specification

Laser class Class 3B

Optical power level +3dBm ±2dBm

Optical Wavelength

Two colour system Three colour system Four colour system

Master 1310 ± 10 nm 1310 ± 10 nm 1310 ± 10 nm

Slave 1 1550 ± 3 nm 1550 ± 3 nm 1530 ± 3 nm

Slave 2 NA 1510 ± 3 nm 1510 ± 3 nm

Slave 3 NA NA 1550 ± 3 nm

Mechanical Specifications

Dimensions 540 x 350 x 150 mm

Enclosure Aluminium (IP 65)

Weight 20 kg

Environmental Specifications

Cooling Convection*

EMC See compliance below

Operating Temperature - 25 to + 55 ° C

Storage - 30 to + 70 ° C

Humidity ETSI EN 300 019-2-4 (see compliance below)

MTBF > 100 000 hrs

Complies in applicable parts, relevant on different markets, to:

R&TTE Directive including

ETS EN 301 502 (ETS EN 300 609-4/GSM 11.26)

ETSI TS 25.106, ETSI 25.143

ETSI EN 301 908-11

ETS EN 301 498-8

EN 60 950

EN 50 385

* The MBF repeaters are designed primarily for multi carrier purposes. If the repeaters are run at full

output power over a longer period the convection cooling might not be enough. The repeaters have a

power management function implemented that will step down the power and if needed fully shut

down the amplifier chains until temperature has reached normal values. In situations where a repeater

will be run in such a manner extra cooling can be provided for instance by putting the repeater in a

temperature controlled environment or via external fans.

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

F-

-D

D-

-9

-2

-1

Electrical Specifications

LTE 700 GSM/WCDMA

850 E-GSM GSM/WCDMA

1900 AWS WCDMA2100

UL 698-716MHz

and

777-787MHz

824 – 849 MHz 880 –

915 MHz 1850 - 1910 MHz 1710-1755 MHz 1920 - 1980 MHz

DL 728-756MHz 869 – 894 MHz 925 –

960 MHz 1930 - 1990 MHz 2110-2155 MHz 2110 - 2170 MHz

Operational

bandwidth 28MHz/18MHz/

10MHz 25MHz 35 MHz 60 MHz 45MHz 60 MHz

Composite Output

Power DL +37dBm +37 dBm +37 dBm +37 dBm -39 dBm (for

PAR of 8.5 dB) +39 dBm (for PAR

of 8.5 dB)

Ripple in pass band (all bands) < 2 dB

Noise figure UL (all bands) 3 dB typical (maximum gain)

Propagation delay (all bands) < 2 µs

Modulation Accuracy at nominal output power

LTE 700 <3% EVM RMS

GSM / GMSK < 2.5 ° RMS and < 10 ° peak

EDGE / 8-PSK < 3 % EVM RMS

WCDMA/EVM < 12.5% RMS (composite according to ETSI TS 25.106

with TM 1/64 DPCH)

WCDMA/PkDCE < -33 dB (according to ETSI TS 25.106 with TM 1/64

DPCH and spreading factor 256)

Gain UL/DL (all bands) Adjustable in 1 dB steps

System Impedance (all bands) 50 ohm

Return Loss at Antenna Connection > 14 dB

Antenna connectors DIN 7/16

Electrical ratings 230 VAC, 50 Hz or -48 VDC

Power Consumption 220 W

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Optical Module Electrical Specification

Laser class Class 3B

Optical power level +3dBm ±2dBm

Optical Wavelength

Two colour system Three colour system Four colour system

Master 1310 ± 10 nm 1310 ± 10 nm 1310 ± 10 nm

Slave 1 1550 ± 3 nm 1550 ± 3 nm 1530 ± 3 nm

Slave 2 NA 1510 ± 3 nm 1510 ± 3 nm

Slave 3 NA NA 1550 ± 3 nm

Mechanical Specifications

Dimensions 540 x 350 x 150 mm

Enclosure Aluminium (IP 65)

Weight 22 kg

Environmental Specifications

Cooling Convection*

EMC See compliance below

Operating Temperature - 25 to + 55 ° C

Storage - 30 to + 70 ° C

Humidity ETSI EN 300 019-2-4 (see compliance below)

MTBF > 100 000 hrs

Complies in applicable parts, relevant on different markets, to:

R&TTE Directive including

ETS EN 301 502 (ETS EN 300 609-4/GSM 11.26)

ETSI TS 25.106, ETSI 25.143

ETSI EN 301 908-11

ETS EN 301 498-8

EN 60 950

EN 50 385

* The MBF repeaters are designed primarily for multi carrier purposes. If the repeaters are run at full

output power over a longer period the convection cooling might not be enough. The repeaters have a

power management function implemented that will step down the power and if needed fully shut

down the amplifier chains until temperature has reached normal values. In situations where a repeater

will be run in such a manner extra cooling can be provided for instance by putting the repeater in a

temperature controlled environment or via external fans.

AXELL MBF MULI-BAND FIBRE REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

F-

-T

T-

-9

-1

-2

-1

Electrical Specifications

LTE 700 GSM/WCDMA

850 E-GSM GSM1800 GSM/WCDMA

1900 WCDMA

2100 AWS

UL 698-716MHz

and

777-787MHz

824 – 849 MHz 880 – 915

MHz 1710 - 1785

MHz 1850 - 1910

MHz 1920 - 1980

MHz 1710-1755

MHz

DL 728-756MHz 869 – 894 MHz 925 – 960

MHz 1805 - 1880

MHz 1930 - 1990

MHz 2110 - 2170

MHz 2110-2155

MHz

Operational

bandwidth 28MHz/18MHz/

10MHz 25MHz 35 MHz 75MHz 60 MHz 60 MHz 45MHz

Composite

Output

Power DL

+37dBm +37 dBm +37 dBm* +37 dBm* +37 dBm +39 dBm

(for PAR of

8.5 dB)

+39 dBm

(for PAR of

8.5 dB)

* In repeaters that share a common downlink fibre for 900MHZ and 1800MHz a minimum of 4

carriers in each band is required for the full composite output power to be attainable maintaining full

ETSI compliance

Ripple in pass band (all bands) < 2 dB

Noise figure UL (all bands) 3 dB typical (maximum gain)

Propagation delay (all bands) < 2 µs

Modulation Accuracy at nominal output power

GSM / GMSK < 2.5 ° RMS and < 10 ° peak

EDGE / 8-PSK < 3 % EVM RMS

WCDMA/EVM < 12.5% RMS (composite according to ETSI TS 25.106

with TM 1/64 DPCH)

WCDMA/PkDCE < -33 dB (according to ETSI TS 25.106 with TM 1/64

DPCH and spreading factor 256)

Gain UL/DL (all bands) Adjustable in 1 dB steps

System Impedance 50 ohm

Return Loss at Antenna Connection > 14 dB

Antenna connectors DIN 7/16

Electrical ratings 230 VAC, 50 Hz or -48 VDC

Power Consumption 350 W

AXELL MBF MULI-BAND FIBER REPEATER

PRODUCT DESCRIPTION AND USER’S MANUAL

Optical Module Electrical Specification

Laser class Class 3B

Optical power level +3dBm ±2dBm

Optical Wavelength

Two colour system Three colour system Four colour system

Master 1310 ± 10 nm 1310 ± 10 nm 1310 ± 10 nm

Slave 1 1550 ± 3 nm 1550 ± 3 nm 1530 ± 3 nm

Slave 2 NA 1510 ± 3 nm 1510 ± 3 nm

Slave 3 NA NA 1550 ± 3 nm

Mechanical Specifications

Dimensions 540 x 350 x 220 mm

Enclosure Aluminium (IP 65)

Weight 33 kg

Environmental Specifications

Cooling Convection*

EMC See compliance below

Operating Temperature - 25 to + 55 ° C

Storage - 30 to + 70 ° C

Humidity ETSI EN 300 019-2-4 (see compliance below)

MTBF > 100 000 hrs

Complies in applicable parts, relevant on different markets, to:

R&TTE Directive including

ETS EN 301 502 (ETS EN 300 609-4/GSM 11.26)

ETSI TS 25.106, ETSI 25.143

ETSI EN 301 908-11

ETS EN 301 498-8

EN 60 950

EN 50 385

* The MBF repeaters are designed primarily for multi carrier purposes. If the repeaters are run at full output

power over a longer period the convection cooling might not be enough. The repeaters have a power

management function implemented that will step down the power and if needed fully shut down the amplifier

chains until temperature has reached normal values. In situations where a repeater will be run in such a

manner extra cooling can be provided for instance by putting the repeater in a temperature controlled

environment or via external fans.

PBE Europe as Axell Wireless A217SERIES Tri-Band Repeater MBF-T-7-8-19 User Manual High Selectivity Digital 900MHz Repeater

Axell Wireless Tri-Band Repeater MBF-T-7-8-19 High Selectivity Digital 900MHz Repeater

manual

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