ADC DWM025AA User Manual

WiMax Optical Fiber Repeater 10W

Installation and Operation Manual

Remote Unit Host Unit

February 2008

Document No. 913011900 Rev. 1.1

Document No. 913011900 Rev. 1.0 Proprietary Document

WiMax Optical Fiber Repeater 10W Installation and Operation Manual

Copyright

All data and information contained in or disclosed by this document is confidential and
proprietary information of Unity Wireless Ltd and all rights therein are expressly reserved. By
accepting this material, the recipient agrees that this material and the information contained
therein is held in confidence and in trust and will not be used, copied, reproduced in whole or
in part, nor its Contents revealed in any manner to others, without the explicit written
permission of Unity Wireless Ltd.

Unity Wireless Ltd. Copyright© 2008, Unity Wireless Ltd.

Unity Wireless Ltd. reserves the right to change specifications without notice.

*All third-party trademarks are the properties of their registered owners.

Preface

This manual provides instructions for mounting, setting-up, and monitoring ADC OR
system.

The WiMax 10W Optical Fiber Repeater is used to enhance the performance of
Wimax networks by improving the coverage of the base station and increasing their
traffic.

As a result, the resources of the base station are utilized more efficiently.

In addition, ADC Optical fiber Repeater is a flexible and cost-effective solution that
enables the operator to provide cellular coverage without dependence on the original
cell site coverage area. It is an ideal way to achieve targeted coverage of remote
areas and ‘coverage holes’, and enables advanced coverage schemes, such as BTS
hoteling and distributed coverage for high data-rate networks.

A powerful feature provided enables monitoring and controlling the parameters of
each site from the other site (the Host unit can be controlled from the Remote unit
and vice-versa), using a dedicated channel outside the WiMax frequency band.

This channel is used also to synchronize the TDD frame between the Remote and
Host units.

ADC Repeater may be secured to an interior or exterior wall or attached to a
concrete slab.

Records of Changes

Revision Description Initiated by Date

1.0 Preliminary Release Ram Dishon November 2007

1.1 Update Ram Dishon February 2008

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Safety Information

This section describes the use of warnings, cautions, and notes in this manual. It is
the user’s responsibility to follow all safety instructions and regulations.

NOTE: Notes clarify issues.

CAUTION

This symbol indicates special CAUTION required in a
procedure. CAUTION signs prevent actions that may result in
equipment malfunction or damage.

WARNING

WARNING signs prevent actions that may result in harm to
personnel.

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FCC Part 15A Compliance Statement

This device complies with Part 15 Class A of the FCC rules. Operation is
subject to the following two conditions: (1) this device may not cause
harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.

These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate Radio Frequency energy
and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communication. Operation of this
equipment in a residential area is likely to cause harmful interference in
which case the users will be required to correct the interference at their
own expense.

CAUTION

Changes or Modifications not expressly approved by ADC
could void the user’s authority to operate the equipment.

For customer and technical support, contact

ADC Telecommunications, Inc.

P.O. Box 1101, Minneapolis, Minnesota 55440-1101

In U.S.A. and Canada: 1-800-366-3891

Outside U.S.A. and Canada: [phone]

Fax: [phone]

or send an e-mail to [e-mail]

WARRANTY

ADC Telecommunications, Inc. warrants its products as per agreement.

Exclusions

The warranty (as per the agreement) shall not apply to defects resulting from
improper or inadequate use, unauthorized modifications or misuse.

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Warranty Limitations

Under no circumstances will ADC Telecommunications, Inc. be liable in any way to
the user or any third party for damages, including any loss of profits, lost savings, or
other incidental or consequential damages arising out of the use, or inability to use,
the product.

System Measurement and Testing Warnings

WARNING

When installing equipment, always connect the grounding
cable first, only then connect the other cables.

When testing the units in the lab or during field installation,
always practice RF radiation safety rules. It is not
recommended for service or lab personnel to work closer
than two meters from the Remote unit antenna surfaces
when it is operating.

CAUTIONS

• Switch off the AC or DC power to the unit before
connecting or disconnecting any cable.

• Do not connect or disconnect any RF coaxial
connectors while power is applied to the Repeater.
Disconnect power first.

• Do not apply more than +10dBm of RF input power to
any RF port of the OR system, or irreversible damage
may occur.

• When measuring high power outputs, always verify
that the equipment input port is capable of handling
the expected output power.

• During lab or field tests, with power applied to the
Repeater, do not use any mobile transmitters in a
range of less than 10 meters from the unit. An
unexpectedly high RF power might appear at the
output ports, which might in turn damage the
measuring equipment connected to that port.

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Glossary

ALC Automatic Level Control

BDA Bi-Directional Amplifier

BT Bias T

BTS Base Transceiver Station

dB Decibel measurement of gain and loss

dBm Decibel measurement of power, related to 1mW

dBmO Decibel measurement of optical power, related to 1mWO

Ec Energy per chip received at the mobile's rake receiver

FWD Down-link from the donor base station to the mobile users,

synonym to DL

HPA High Power Amplifier

Io Interference

LNA Low Noise Amplifier

LPU Low Power Unit

M&C Monitoring and Control

MS Mobile Station

mW Milliwatt

NF Noise Figure

NOC Network Operating Center

OR Optical Repeater (Fiber)

PA Power Amplifier

RVS Up-link from the mobile users to the donor base station,

synonym to UL

Rx Receive

TDR Time-Domain Reflectometer

Tx Transmit

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Table of Contents

1 Introduction........................................................................................................... 1-1

1.1About ADC Optical Fiber Repeater (OR) ....................................................................................... 1-1

1.2OR System Description................................................................................................................. 1-2

1.2.1General Description .......................................................................................................... 1-2

1.2.2Major Advantages ............................................................................................................ 1-3

2 Installation Procedure............................................................................................ 2-1

2.1Pre-installation Procedures ............................................................................................................ 2-1

2.1.1Receiving and Inspecting the Repeater ............................................................................... 2-1

Required Tools and Test Equipment .......................................................................................... 2-3

2.2Run Sweep Test ........................................................................................................................... 2-3

2.3Host Unit Installation.................................................................................................................... 2-4

2.3.1Mount the Host Unit ......................................................................................................... 2-4

2.3.2Outside the BTS enclosure ................................................................................................ 2-4

2.3.3Inside the BTS enclosure................................................................................................... 2-4

2.3.4Prepare the Electrical Power Connections........................................................................... 2-4

2.4Optical Fiber Test......................................................................................................................... 2-5

2.4.1Power Up the Host Unit. ................................................................................................... 2-5

2.5Mount the Distribution Antennas ................................................................................................... 2-5

2.6Mount the Remote Unit................................................................................................................. 2-6

2.6.1Precautions ...................................................................................................................... 2-6

2.6.2Remote Unit Installation - General Instructions................................................................... 2-6

2.6.3Sealing and Weatherproofing............................................................................................. 2-6

2.6.4Remote Unit Mounting ..................................................................................................... 2-8

2.6.5Cables Connection............................................................................................................ 2-9

3 OR System Setup and Alignment .......................................................................... 3-1

3.1Connect To The Repeater .............................................................................................................. 3-1

3.2Set the System Parameters............................................................................................................. 3-5

3.2.1System Setup Instructions ................................................................................................. 3-6

3.2.2Remote Unit FWD Gain Optimization................................................................................ 3-6

3.2.3Host Unit RVS Gain Optimization ..................................................................................... 3-7

3.2.4Noise Rise Check ............................................................................................................. 3-7

4 Troubleshooting The OR System........................................................................... 4-1

4.1Troubleshooting ........................................................................................................................... 4-1

4.2LEDs........................................................................................................................................... 4-1

4.2.1LEDs Description ............................................................................................................. 4-1

Appendix A. Specifications.................................................................................................... 1

Host Unit Specifications ...............................................................................................................1

Remote Unit Specifications ..........................................................................................................2

Appendix B. Cables Connections and Pinout ......................................................................... 3

Host Unit AC Power Cable Pin-out.........................................................................................................3

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Remote Unit AC Power Cable Pin-out ................................................................................................... 4

Common Cables ...................................................................................................................................5

Grounding Cables. ......................................................................................................................5

RS232 Cable:..............................................................................................................................5

Appendix C. Accessories........................................................................................................ 6

Remote Unit Mounting Frame Dimensions....................................................................................6

Appendix D. Records ............................................................................................................. 7

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1 Introduction

1.1 About ADC Optical Fiber Repeater (OR)

ADC optical fiber repeater provides Up-link (RVS) and Down-link (FWD) cell

coverage extension. It serves as a sophisticated remote bi-directional
booster, sensing and re-amplifying the RF transmission in FWD (from the
base-station to the mobile users), and in RVS (from the mobile-users to the
base-station), concurrently. Coverage extension results in increasing traffic
through the base station, thus improving utilization of the Base Transceiver
Station (BTS) resources.

The WiMax system is an interactive, environment-sensitive network.
Optimization of this network involves above all - coverage control. Repeaters
in the WIMAX network are therefore highly interactive with the donor cell and
the neighboring cells, and require flexible tuning and control. Their
effectiveness depends highly on these and additional features.

The Repeater Transferred-Noise, as appearing at the input to the shared­donor Base Station receiver, has a detrimental effect on the cell capacity, as
shown in Figure 1-1.

Figure

1-1 Capacity loss vs. repeater noise

A new added feature enables monitoring and control of each site from the
other site, i.e. the Remote unit can be controlled from the Host unit and vice­versa.

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Overall Unique Advantages

The OR product line shares unique features for exceptional coverage, low
impact on the cell, high controllability, and low maintenance cost. The Remote
unit is built of outdoor grade technology and a weather-proof unit, that
guarantees low Noise Figure (NF), high power efficiency, unique flexibility in
installation, and high reliability.

1.2 OR System Description

1.2.1 General Description

The ADC OR system consists of two units, a Host unit, installed close to the
BTS, and a Remote unit, installed in the remote site. This integrated structure
provides the advantage of easy installation and maintenance.

The Host Unit contains the following main units:

• Optical transceiver

• Signal processing and controller

• Power supply

Optical transceiver

The optical transceiver includes a transmitter and receiver units. The
transceiver converts the FWD RF signals into light wave signals, which are
then sent over optical fiber. The transceiver also reconverts the RVS light
waves signals back to RF.

The signals passing through the optical fiber include also the M&C signals.
This enables M&C of the Remote unit remotely from the Host and vice-versa.

Signal Processing and Controller

The RVS and FWD RF signals pass through the LPU, managed by the
internal control system. The control system sets signal power levels, filters,
and sets the selectable RF channels (if applicable).

A local connection to the system enables M&C of each settable component.
The control software is described in Chapter 3.

The system controller in the LPU is monitoring and logging all activity changes
and alarms.

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System status parameters are also combined and their summary indicated by
three LEDs on the repeater cabinet .

The Remote Unit contains the following main units:

• Optical Transceiver

• LPU (Low Power Unit)

•

Distribution front end

• System Power Supply

• Frequency Channelizer that selects the desired operating channel (if

applicable)

Distribution Front End

The distribution front end of the Remote unit consists of:

Duplexer

High Power Amplifier (HPA) for FWD signal

Low Noise Amplifier (LNA) for RVS signal

These are connected to the Distribution Tx/Rx antenna port. Both FWD and
RVS amplification channels are gain-controllable, to obtain the optimal link
balance with minimum noise introduction into the BTS.

1.2.2 Major Advantages

Exceptional Coverage

• Low system NF, with high gain, high linearity

Minimum Impact on Cell

•

Low NF

• Increased capacity, provided by the low NF

• Wide range gain control for performance optimization

Extremely High Reliability

• Outdoor structure (Remote Unit)

• Integrated electronics, internal built-in test

•

Automatic shut-down mechanism

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Exceptional Flexibility

• Easy installation

•

Easy maintenance with simple access to Repeater components

Automatic Level Control (ALC) for Power overload protection

ALC range of more than 35dB beyond the maximum output power is included
in the amplfing chains.

During normal operating conditions, the repeater system should not reach the
ALC level. The repeater should be “transparent” to the BTS power control and
should not affect this mechanism.

The system set-up should ensure that that maximum power of FWD and RVS
channels are below the ALC level.

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2 Installation Procedure

NOTE: Installing an OR requires a site plan, which is a document
defining the planned parameters of the cellular network. Parameters
include the channel number in use, desired Repeater’s coverage
area, gain settings, and antenna location. If necessary, consult your
network administrator for more information.

2.1 Pre-installation Procedures

2.1.1 Receiving and Inspecting the Repeater

CAUTION

Verify that the packages are complete and undamaged. If
the boxes appear damaged, do not open the shipment.

Never ship any unit without adequate packing!

Follow this procedure prior to installation:

1. Unpack the shipment box.

2. Verify the contents of the box against the packing list.

3. Inspect the OR units for possible damage.

The items in Table 2-1 are required for the installation. They are supplied
separately from the installation kit.

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Table 2-1: Complementary installation equipment

Type Description Vendor

Documentation This Assembly and Operation manual ADC

Software Control & Monitoring Software, ready for installation. This

software sets up and tunes the Repeater during
installation.

Cables

Antennas Distribution antennas Customer

RF cables from distribution antenna to Remote unit Customer

Fiber cable from Host unit to Remote unit Customer

Communication cable for setting and maintenance Customer

Table 2-2: Repeater installation set

Supplier Part Number Description Quantity

ADC 1428771 Remote unit, 110 VAC 1

ADC 334053000 Cable, AC power for 110 V Remote unit 1

ADC 1428774 Host unit, indoor 1

ADC 3340408 Cable, Power, Host 1

The contents of the installation set may change without notice.

ADC

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Required Tools and Test Equipment

Table 2-3: Tools and test equipment for Repeater installation

Equipment Use

Ring/Open spanner ½” Install the Repeater units

Ring/Open spanner 7/16” Close the ground lugs

Ring/Open spanner 30-32 mm Open/close DIN 7/16 connectors

Digital Voltmeter Fluke 77 or
equivalent

Pilot Scanner / Drive Test Set Measure donor pilot signal levels

Frequency domain Reflectometer Check Insertion loss and VSWR for system RF Cables

Network Analyzer (optional) Check Insertion loss and VSWR for system RF Cables

Signal Generator Check Isolation between antennas

Spectrum Analyzer Check Repeater Output Power

30dB 50W attenuator (Cellular Band) Protect RF Test equipment from overpowered signals

Type N 50Ω Termination (1 unit) Terminate antenna port during off-air test procedures

Standard calibrated test cables Test equipment usage

Laptop PC equipped with Windows
2000 with Service Pack 3 or Windows
XP, SP2

Measure voltage and polarity for the installation process

Configure, control, and monitor the Repeater through the
RS-232 communication port

NOTE: For antenna installation tools, refer to your antenna
installation guide.

2.2 Run Sweep Test

Before installing the Repeater, check mechanical assembly of all RF
connectors, run a sweep test of the RF cables and record the cables loss.
Perform the sweep test using a Site Master analyzer or a Network Analyzer.

•

Perform open/short tests on the distribution RF cables.

• Record the following parameters for each RF cable:

Insertion loss of the cable

o

Return loss (VSWR)

o

• If you detect a fault in any of the cables, repair it and re-check until all the
cables are good.

NOTE: Record the information for reference in Appendix D. This
information is used during the setup procedure.

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2.3 Host Unit Installation

1. Locate the neccassary space for mounting the Host unit inside the BTS
enclosure or close to it.

2. Turn off transmission of the BTS when installing the Host unit.

2.3.1 Mount the Host Unit

2.3.2 Outside the BTS enclosure

1. The unit is designed to fit into 19” rack. In case of 23” rack, a proper
adapter should be used.

2. Mount the Host unit in a way that will enable good accesibilty to the fiber,
AC and RF connections.

2.3.3 Inside the BTS enclosure

Locate the necessary space and fix the Host unit professionally, making sure
not to block air circulation to the unit

2.3.4 Prepare the Electrical Power Connections

WARNING

Recap the power connectors until the Host Unit is ready to be
set up. Do not connect the power yet.

CAUTION

Power to the Host Unit site must be supplied according to the
safety standards in the corresponding country (grounded
outlets, circuit breaker, conduits, etc.).

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The cable pinout can be found in Appendix B.

It is recommended to install a small junction box containing a circuit
breaker of 5A before the power cable.

Installing an ELCB (Earth Leakage Circuit Breaker) is highly
recommended.

Connect cables as follows:

a. Grounding cable.

b. RF cable from the BTS

c. Optical Fiber cable (Clean professionally the fiber connector)

d. AC cable (Use 5A circuit breaker)

Figure

2-1: Host Unit

2.4 Optical Fiber Test

Check the optical fiber between the BTS and the remote site using Optical Power Meter or in
loop-back (if a spare fiber is available), using the optical transceivers of each end as a light
source or +3 dBmO (optical), or another known source.

Optical power output from the 2 OR units is +3 dBm nominal. 1310nm from Host and 1550
nm from Remote unit.

Get recent/valid test data.

2.4.1 Power Up the Host Unit.

2.5 Mount the Distribution Antenna (Remote Site)

The distribution antenna is supplied by the customer. Perform the following
steps:

•

Mount the antenna in its selected height, azimuth and tilt

• Connect the antenna to the feed lines and run a sweep test for antenna
reflected power in the distribution frequency band.

• Seal the cables

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2.6 Mount the Remote Unit

2.6.1 Precautions

CAUTION

The OR Remote unit is electrical equipment and should be
treated accordingly.

CAUTIONS

• Always shut down the AC or DC supply to the Remote
unit before handling, replacing, or removing the unit.

• The Remote unit overall weight is ~35Kg. Carry the
unit carefully.

• The customer is not permitted to disassemble the
Remote unit. Disassembling the unit voids the
warranty.

• The Remote unit is hermetically sealed in a clean
environment.

2.6.2 Remote Unit Installation - General Instructions

The Remote unit is intended for wall mounting. See holes dimensions in
Appendix C.

• RF coaxial cable connecting the Remote unit:

• Type: low loss type

•

Diameter: 1/2” or 7/8"

• Length: The cables should be as short as possible. Cable length
should not exceed 100m.

2.6.3 Sealing and Weatherproofing

Sealing and weatherproofing RF connectors is of prime importance to assure
good electrical contact for many years and prevent passive RF inter­modulation effects. Thus, special care should be taken with the RF connectors
sealing and weatherproofing.

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For sealing instructions, refer, for example, to Andrews weatherproofing
recommendations with 3M

TM

Cold Shrink

TM

Weatherproofing Kit, or an

equivalent sealing method.

CAUTION

Improper sealing can cause damage not covered by
warranty.

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2.6.4 Remote Unit Mounting

Figure

2-2: Mounting Holes Drawing

1. Select a location that will enable free air flow, away from heaters.

2. When installing inside a shelter, keep minimum spacing of 300 mm from
Repeater top to the ceiling.

3. Drill holes and insert suitable dowels. See holes spacing dimensions in
Figure 2-2.

4. Position the Repeater and tighten the screws.

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2.6.5 Cables Connection

1. Connect the Ground screw of the Remote unit (located at the side of the
unit) to either earth-ground or the ground-rod of the building. Tighten the
ground screw using a 7/16" spanner

2. Connect RF cable to the distribution (service) antenna.

3. Connect the optical fiber to the Remote Unit (Clean professionally the fiber
connector).

4. Connect the power cable.

Sealing Screw

Figure 2-3: Remote Unit Panel

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3 OR System Setup and Alignment

3.1 Connect To The Repeater

Monitoring and controling the repeater are accopmlished by a PC via web application.

Connect the system (Host, Remote, cables, antennas, fiber) and power it up. Connect the Host
unit to the server PC.

3.2 Local Connection

Launch the application.

3.2.1 Description

The Main Screen opens. This is the “Systems” screen. See Figure 3-1.

Figure 3-1

There are 5 tabs on its upper part.

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Click on “Configuration” tab. The following screen appears (Figure 3-2).

Figure 3-2

Click on “-COM settings”. The following screen appears (Figure 3-3).

Figure 3-3

Define the COM port of the server to which the Host is connected; Click “Add”.

Repeat for all the Host units connected to the server. Each Host unit should be connected
to a different COM port.

Click on “Systems” tab.

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If the system is connected properly (Host & Remote), the application should identify it and
show it as a new link.

If no link is connected, the following screen appears (figure 3-4):

Figure 3-4

If you click on “Modify Link” at the right, you will be able to introduce the geographic
coordinates of the Remote unit and the name of the link. See figure 3-5.

Figure 3-5

The Longitude / Latitude supports the format +/- dd.dddddd (decimal degrees).

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+ is for North and East.

– is for South and West.

The Name fields support up to 40 characters.

Click on the Link name in Systems screen.

The following screen appears (figure 3-6).

Figure 3-6

This screen shows all the parameters of the system, including alarms. Note that settable
parameters have “Change Value” or “Change Status” tabs. (Scroll down to see the Remote and
Host details).

The settable parameters are “PA Mute” of the Remote unit and Gains (Host and Remote, FWD
and RVS).

Click on “Change Value” or “Change Status” of the parameter you want to change, change the
value / status and click “Save”.

Until actual change is applied, a green note advising that a change is pending will appear.

Whenever this sign appears in the Gains field, note that the Actual Gain differs from the Set
Gain, implying that the ALC is in operation.

At the bottom of the screen there are three tabs:

•

“Reset Link” soft-resets the internal software of the Remote unit, then the Host unit.

• “Set Time to Host” synchronizes the Host clock with the PC clock.

• “Set Time to Remote”- respectively.

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The “Alarms” field lists all previous and current alarms of the system. For Alarms details and
troubleshooting, see Section 4.

In the Main screen, click on “History and Reports” tab.

The following screen appears (Figure 3-7).

Figure 3-7

Clicking on “NMS Logs” will show activities of the application. The Logs can be filtered
per dates.

“SMS Logs” and “Repeater Alarm and Information Reports” are not used in this

application.

3.3 Set the System Parameters

AUTHORIZATION

Administrators can perform this procedure.

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3.3.1 System Setup Instructions

General.

The set-up of Host and Remote units FWD gains are based on maximum power considerations.
This means that whenever the BTS transmits at maximum power, the Remote unit will also
transmit at maximum power.

The set-up of the Host and Remote units RVS gains is based on known noise level introduction
into the BTS

Make sure that you have a documented test results of the optical fiber link loss. Otherwise,
measure it and record the results.

Make sure that the fiber termination type is FC/APC.

Use the following guidelines to set-up the Host and Remote units:

Host Unit:

• Determine the absolute maximum input power to the Host unit input connector

(under the heaviest traffic conditions); let this be P

• Set the Host unit FWD gain to 0- P

dBm).

• If symmetrical link is requested, set the RVS gain to the same value as the FWD

gain.

• If permitted, set the RVS gain 3 dB less than the FWD gain.

Remote Unit:

• Set the Remote unit FWD gain to the numerical value of the maximum output

power of the unit in dBm, plus the absolute value of the RF loss of the fiber (in dB).

• Set the RVS gain to the same value as the FWD gain.

NOTE: If reduced coverage is required, reduce the gains respectively.

[dBm].

inmax

[dB]. (This is in order to enter the fiber at 0

inmax

3.3.2 Remote Unit FWD Gain Optimization

NOTE:

the Remote unit.

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The RVS gain must be approximately equal to the FWD gain of

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For optimal FWD and RVS balancing it is recommended to perform an additional fine-

tuning procedure on the FWD, after completing the previous processes.

1. Drive with a mobile station (MS) to the outskirts of the Remote unit coverage
area and observe the Mobile Ec/Io (in test mode), or walk indoors to the worst­case location.

2. If the Mobile Ec/Io is low or marginal in the designated area,
optimize the azimuth and elevation of the distribution antenna.

3. Make changes according to the following criteria: if the Mobile Ec/Io is higher
than specified by the RF designer at the covered area border, decrease the
FWD gain in 1dB steps, until the MS Ec/Io reaches the desired value.

Do not in any case set the gain to a higher value than that determined in this
Section.

3.3.3 Host Unit RVS Gain Optimization

NOTE: The RVS gain must be approximately equal to the FWD gain of the Host

unit.

1. Drive with a MS to the outskirts of the system coverage area, and observe the Mobile
Tx Power (in test mode). Alternatively, walk indoors to the worst-case locations.

2. If the Mobile Tx Power reaches its maximum power (+23dBm), increase the RVS gain
in 1dB steps until the Mobile Tx Power drops by 2dB below its maximum value (Mobile
Tx power =+21dBm).

3. Do not, in any case, set the gain to a higher value than that set in this Section.

3.3.4 Noise Rise Check

After completion the optimization process, verify that the noise at the RVS channel
at the BTS did not rise more than 1-2dB due to the system installation.

In case of noise rise greater than 2dB, decrease RVS gain to fit the BTS noise-rise
parameter accordingly.

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WiMax Optical Fiber Repeater 10W Installation and Operation Manual

3.4 Remote Control

Use any PC connected to the Internet.

Launch Internet Explorer on the PC (Version 6 or higher).

Key-in the IP address provided by the Network Administrator.

Key-in your User Name and Password. Click “Login”.

From this point, operation is similar to 3.2.1 onwards.

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WiMax Optical Fiber Repeater 10W Installation and Operation Manual

power

No

Yes

rive (or walk) with an MS (in test

mode) to Repeater site boundary,

and observe Mobile Tx Power during

Yes

.

Set Repeater gain for
Down-link and Up-link
according to 3.9.2

D

a call

Mobile Tx

power 23

Decrease Up-link
gain in 1 dB step

Increase Up-link
gain in 1dB step

Mobile Tx

23 dBm?

END

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Figure

3-8: Host Unit RVS Gain Setting

3-9

4 Troubleshooting The OR System

4.1 Troubleshooting

Table 4-1 describes the supported alarms, their specifications and their remedies.

NOTE: For unsolved problems or difficulties, contact ADC Technical Support

at [e-mail]

Table 4-1: Alarms and troubleshooting

Alarm Specification

RF Power Alarm Output power level at Remote is below or above

acceptable threshold

VSWR Alarm VSWR reading at Remote is out of acceptable

range

Power Alarm Any AC/DC power source problem on host or

remote unit

RSSI Alarm RSSI level is out of acceptable range BTS coupler, RF

Over temperature
Alarm
Optical Link Quality
Alarm

Temperature at host or remote is above or below
acceptable range
Fiber link quality will be monitored and alarmed. Fiber loss, optical

Check the
following:

FWD gain, input
signal level
RF cables, antenna

Power cables, mains
power

cable, fiber loss
Cooling fins integrity
and dirt

power output at Host
and Remote

4.2 LEDs

4.2.1 LEDs Description

The Remote unit contains three LEDs as described below:

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WiMax Optical Fiber Repeater 10W Installation and Operation Manual

2

Indicates alarm during

System Green LED

Normal System

operation

System red LED

system operation

Warning LED

Indicates alarm with
low severity

The Host unit contains one bi-color LED:

Green- OK

Red- Alarm.

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APPENDIX A. SPECIFICATIONS

Host Unit Specifications

Parameter

Forward path

Input Frequency Range 2640.5 – 2673.5 MHz

BW 30 MHz

VSWR < 1.5:1

Input Power Range

Max Rated Input Power -10 to +10 dBm

Gain -15 to 15dB, nominal –10 dB

Gain control step 1dB

Gain flatness ± 3 dB max, over 30MHz

Reverse path

Output Frequency Range 2640.5 – 2673.5 MHz

VSWR < 1.5:1

Max Output Power –40dBm

Gain -40 to 5dB

Gain control step 1dB over complete range

Gain flatness ± 0.5dB max, over 10MHz

-10 to 10dBm

Specification

Electrical Power, Mechanics, Environment

Dimensions W x H x D [mm] 480 x 44 x 420 (1U)

Weight 3 Kg

Mounting 19” Rack

Operating Temperature -5 ÷ +50 °C

RF Connectors N-Type Female

Optical Connectors FC/APC

Humidity 85% relative

Power Supply 110 VAC. (optional- -48VDC)

Power Consumption < 40W

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WiMax Optical Fiber Repeater 10W Installation and Operation Manual

Remote Unit Specifications

Parameter

Forward path

Output Frequency Range 2640.5 – 2673.5 MHz

BW 30 MHz

VSWR <1.5:1

Max Output Power

Gain 30 to 70dB, nominal 50 dB

Gain control step 1dB

Gain flatness ± 3 dB max, over 30MHz

Reverse path

Input Frequency Range 2640.5 – 2673.5 MHz

VSWR <1.5:1

Noise Figure <5dB

Gain 30 to 60dB

Gain control step 1dB over complete range

Gain flatness ±-0.5dB max, over 10MHz

Electrical Power, Mechanics, Environment

10W

Specification

Dimensions W x H x D [mm] 659x424x137

Weight 25 Kg

Mounting Wall

RF Connectors N-Type Female

Optical Connectors FC/APC

Operating Temperature -33 ÷ +55 °C

Humidity 85% relative

Power Supply 110VAC to 230VAC

Power Consumption < 270W

System Specification

Local Management GUI application through RS-232 port

Monitors / Controls Operation Frequency, Gain, PA Mute

Alarms VSWR, Synthesizer Loss of Lock, PA

Fiber Link Wavelength Single Mode, 1310/1550nm

Supported Fiber Length Max. 10 km

Absolute Delay Max. 5µsec, excluding fiber delay

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APPENDIX B. CABLES CONNECTIONS AND
PINOUT

Host Unit AC Power Cable Pin-out.

Figure B-1: AC Power Cable Layout

Brown Wire: Live

Blue Wire: Neutral

Yellow-Green Wire: Ground.

Ensure you connect the cable correctly!

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WARNING

WiMax Optical Fiber Repeater 10W Installation and Operation Manual

Remote Unit AC Power Cable Pin-out

Figure B-3: Remote Unit AC power cable.

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WiMax Optical Fiber Repeater 10W Installation and Operation Manual

Common Cables

Grounding Cables.

Applies to both Host and Remote units.

Use 6 AWG wire, copper wire. Use termination with a hole/holes to accommodate a ¼”
screw.

RS232 Cable:

The following table shows the connector pins for the RS-232 cable.

Table B-1: RS-232 communication connector

Communication Cable

Pin # Function

2 PC Rx

3 PC Tx

5 GND

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APPENDIX C. ACCESSORIES

Remote Unit Mounting Frame Dimensions

Allow 300 mm spacing between Remote unit top and ceiling.

Figure C-1: Remote Unit wall-mount frame

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WiMax Optical Fiber Repeater 10W Installation and Operation Manual

APPENDIX D. RECORDS

Repeater System Installation Record

After setting the Repeater system, it is recommended to write down the site
information for future reference.

Site Name (Host/Remote)

System #.................................. .................. .................

Personal Phone# ..................... .................. .................

Measured RF Cable Loss

Measured RF Cable Loss

Distribution Ant. to Remote unit .................. ................. dB

Coupler to Host Unit…………………………… ……….dB

Coupler to Fiber Loss………………………………………dB

Fiber Loss……………………………………………… …..dB

Down Link Channel Parameters

RSSI level at Remote Unit........ .................. ................. dBm

Remote unit Down Link gain .... .................. ................. dB

Remote unit measured output power ...... .................dBm

Host Down link Gain……………………………………….dB

Host measured output power……………………………..dB

Up Link Channel Parameters

Up link Remote unit Gain Setting ............... ................. dB

Remote unit measured output power .......... ................. dBm

Up link Host Gain Setting ........ .................. .................dB

Host measured output power ... .................. .................dBm

Updated by: ______________ Signature: ______________ Date: _____________

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