Westell DSP85-U7CPG Digital Repeater User Manual Number

PRODUCT M

A

N

UAL

WESTELL.COM

©Westell Technologies

.

960-1666-MNL

rJ3

DSP85 Series Digital Repeater

User’s Guide

Digital Repeater Line

DSP85 Series

WESTELL.COM

1.877.844.4274 Page 2 of 77

DISCLAIMER

All information and statements contained herein are accurate to the best of Westell Technologies knowledge. Westell

Technologies makes no warranty with respect there to, including without limitation any results that may be obtained

from the products described herein or the infringement by such products of any property rights of any persons. Use

or application of such information or statements is at the users’ sole risk, without any liability on the part of Westell

Technologies. Nothing herein shall be construed as license or recommendation for use, which infringes upon any

propriety rights of any person. Product material and specifications are subject to change without notice. Westell

Technologies standard terms of sale and the specific terms of any particular sale apply.

WARNING. This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and QUALIFIED

INSTALLERS. You must have an FCC LICENSE or express consent of an FCC Licensee to operate this

device. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for

Each continuing violation.”

WARNING! Changes and Modifications not expressly approved by Westell can void your authority to operate this

equipment under Federal Communications Commission’s rules.

WARNING! The Manufacturer's rated output power of this equipment is for single carrier operation. For situations

when multiple carrier signals are present, the rating would have to be reduced by 3.5 dB, especially where the

output signal is re-radiated and can cause interference to adjacent band users. This power reduction is to be by

means of input power or gain reduction and not by an attenuator at the output of the device.

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TABLE OF CONTENTS

Preface ............................................................................................................................................................................... ix

Purpose.................................................................................................................................................................................................................. ix

Application ........................................................................................................................................................................................................... ix

Document Organization ................................................................................................................................................................................. ix

Document Conventions ................................................................................................................................................................................... x

Product Registration Information ............................................................................................................................................................... xi

Safety Guidelines ............................................................................................................................................................................................... xi

Important Safety Information ....................................................................................................................................................................... xi

Industry Certifications/Registration Numbers ...................................................................................................................................... xii

Canadian Compliance Information............................................................................................................................................................ xii

Technical Support............................................................................................................................................................................................ xiii

Acronyms and Abbreviations ...................................................................................................................................................................... xiii

1 Product Overview ................................................................................................................................................... 13

1.1 Product Information ........................................................................................................................................................................ 13

1.2 Functional Overview........................................................................................................................................................................ 13

1.3 LED Indicator ...................................................................................................................................................................................... 14

1.4 Local Communication Interface Ports ...................................................................................................................................... 15

1.5 EIA232 Pin Specifications .............................................................................................................................................................. 15

1.6 USB Interface ..................................................................................................................................................................................... 15

1.7 Ethernet ................................................................................................................................................................................................ 16

1.8 Monitoring and Alarms .................................................................................................................................................................. 16

1.9 Circuit Operational Description .................................................................................................................................................. 16

1.10 Functional Block Diagrams ........................................................................................................................................................... 16

2 Optimizing the System during Installation ........................................................................................................ 19

2.1 System Setup Considerations ..................................................................................................................................................... 19

2.2 Suggested Spectrum Analyzer Setting .................................................................................................................................... 19

2.3 Important Installation Notes ....................................................................................................................................................... 20

2.4 Installation Guidelines .................................................................................................................................................................... 20

2.4.1 Donor Antenna ............................................................................................................................................................................ 20

2.4.2 Antennas ......................................................................................................................................................................................... 21

2.5 Optional Accessories ...................................................................................................................................................................... 21

2.5.1 Outside Donor Antenna ........................................................................................................................................................... 21

2.5.2 Inside Omnidirectional Antenna ........................................................................................................................................... 21

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2.5.3 Power Dividers ............................................................................................................................................................................. 21

2.5.4 Grounding Kit ............................................................................................................................................................................... 21

2.5.5 Directional Couplers .................................................................................................................................................................. 22

2.5.6 19” Rack Shelf ............................................................................................................................................................................... 22

2.5.7 UPS.................................................................................................................................................................................................... 22

2.5.8 Cross Band Couplers .................................................................................................................................................................. 22

3 Web-based GUI ....................................................................................................................................................... 23

3.1 Web-based GUI Session ................................................................................................................................................................ 23

3.2 System Status .................................................................................................................................................................................... 24

3.3 Local Network .................................................................................................................................................................................... 25

3.4 RF Configuration .............................................................................................................................................................................. 26

3.5 Program a Filter ................................................................................................................................................................................ 27

3.6 Remote Network .............................................................................................................................................................................. 28

3.7 SNMP Configuration ....................................................................................................................................................................... 29

3.8 Time Configuration ......................................................................................................................................................................... 29

3.9 System Health.................................................................................................................................................................................... 30

3.10 Install and Upload ............................................................................................................................................................................ 31

3.11 Reboot .................................................................................................................................................................................................. 32

3.12 Alarm Configuration ....................................................................................................................................................................... 33

3.13 Email Configuration......................................................................................................................................................................... 34

3.14 Log Configuration ............................................................................................................................................................................ 35

3.15 Account Credentials ........................................................................................................................................................................ 36

4 Console Interface .................................................................................................................................................... 37

4.1 Text Menu Interface (Local Access) ........................................................................................................................................... 37

4.2 Telnet Session (Remote Access) ................................................................................................................................................. 42

4.3 Modem Interface (Remote Access with Login) .................................................................................................................... 44

4.4 Additional Tips .................................................................................................................................................................................. 45

Appendix A Attenuation and Dynamic Range Guidelines ................................................................................. 49

A.1 Donor Port .......................................................................................................................................................................................... 49

A.2 Server Port .......................................................................................................................................................................................... 49

A.3 Dynamic Range Thresholds ......................................................................................................................................................... 50

A.4 Large Deltas between In-band and Composite Input Signals ....................................................................................... 50

Appendix B

Band Plans

and Filter File Naming Conventions ................................................................................. 51

B.1 Frequency Band Plans .................................................................................................................................................................... 51

B.1.1 700 MHz Lower A, B and C Band Plan ................................................................................................................................ 51

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B.1.2 700 MHz Upper C Band Plan .................................................................................................................................................. 52

B.1.3 Cellular Frequency Band Plan ................................................................................................................................................. 52

B.1.4 AWS Frequency Band Plan ...................................................................................................................................................... 53

B.1.5 Canadian PCS Frequency Band Plan .................................................................................................................................... 53

B.1.6 US PCS Frequency Band Plan ................................................................................................................................................. 54

B.1.7 Public Safety Bands .................................................................................................................................................................... 54

B.2 Filter File Naming Conventions .................................................................................................................................................. 55

B.2.1 700 MHz Filter Naming Convention .................................................................................................................................... 55

B.2.2 Cellular Filter File Naming Convention ............................................................................................................................... 56

B.2.3 Canadian PCS Filter File Naming Convention .................................................................................................................. 57

B.2.4 US PCS Filter File Naming Convention ................................................................................................................................ 58

B.2.5 AWS Filter Naming Convention ............................................................................................................................................ 60

Appendix C LTE Attenuator and Installation Notes ................................................................................................ 61

C.1 Important LTE Attenuator and Installation Notes - Donor and Server Isolation .................................................... 61

C.1.1 Line of Sight Propagation Path Loss Table ........................................................................................................................ 61

Appendix D Mechanical and Electrical Specifications ........................................................................................ 62

D.1 Digital Repeater Mechanical and Electrical Specifications .............................................................................................. 62

D.1.1 Mechanical Specifications .................................................................................................................................................. 62

D.1.2 Electrical Specifications........................................................................................................................................................ 63

D.1.3 Power Requirements ............................................................................................................................................................ 63

D.1.4 Environmental Requirements ............................................................................................................................................ 63

D.1.5 Operating Power Parameters ............................................................................................................................................ 64

Appendix E Port Configurations ............................................................................................................................... 65

E.1 Digital Repeater Port Configurations, Original Series ....................................................................................................... 65

E.1.1 Dual-band D2:D1 Port Configuration ................................................................................................................................. 65

E.1.2 Dual-band D1:D2 Port Configuration ................................................................................................................................. 65

E.1.3 Dual-band D2: D2 Port Configuration ................................................................................................................................ 66

E.1.4 Dual-band D1:D1 Port Configuration ................................................................................................................................. 66

E.1.5 Single-band D1:D1 Port Configuration .............................................................................................................................. 67

E.1.6 Dual-band D2:S4 Port Configuration .................................................................................................................................. 67

E.1.7 Dual-band D1:S4 Port Configuration .................................................................................................................................. 68

E.1.8 Single-band D1:S2 Port Configuration ............................................................................................................................... 68

E.2 Digital Repeater Port Configurations ....................................................................................................................................... 69

E.2.1 Dual-band D2:D1 Port Configuration ................................................................................................................................. 69

E.2.2 Dual-band D1:D2 Port Configuration ................................................................................................................................. 69

E.2.3 Dual-band D2:D2 Port Configuration ................................................................................................................................. 70

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E.2.4 Dual-band D1:D1 Port Configuration ................................................................................................................................. 70

E.2.5 MIMO Port Configuration ........................................................................................................................................................ 70

E.2.6 Single-band D1:D1 Port Configuration .............................................................................................................................. 71

E.2.7 Dual-band D2:S4 Port Configuration .................................................................................................................................. 71

E.2.8 Dual-band D1:S4 Port Configuration .................................................................................................................................. 72

E.2.9 Single-band D1:S2 Port Configuration ............................................................................................................................... 72

Appendix F Mechanical Configurations ................................................................................................................... 73

F.1 DSP85-250 and DSP85-251 Series Mechanical Drawing ................................................................................................. 73

F.2 DSP85-250 and DSP85-251 Series Mounting ....................................................................................................................... 74

Appendix G Acronyms and Abbreviations ........................................................................................................... 76

TABLE OF FIGURES

Figure P-1: Product Registration Information .............................................................................................................................................. xi

Figure 1-1: DB-9 Pin Descriptions ................................................................................................................................................................. 15

Figure 1-2: Dual Band Functional Block Diagram ..................................................................................................................................... 17

Figure 1-3: Single Band Functional Block Diagram .................................................................................................................................. 18

Figure 3-1: User Connection Login ................................................................................................................................................................. 23

Figure 3-2: System Status ................................................................................................................................................................................... 24

Figure 3-3: Local Network .................................................................................................................................................................................. 25

Figure 3-4: RF Configuration ............................................................................................................................................................................. 26

Figure 3-5: Program a Filter .............................................................................................................................................................................. 27

Figure 3-6: Remote Network............................................................................................................................................................................. 28

Figure 3-7: SNMP Configuration ..................................................................................................................................................................... 29

Figure 3-8: Time Configuration ........................................................................................................................................................................ 29

Figure 3-9: System Health .................................................................................................................................................................................. 30

Figure 3-10: Install & Upload............................................................................................................................................................................ 31

Figure 3-11: Reboot .............................................................................................................................................................................................. 32

Figure 3-12: Alarm Configuration ................................................................................................................................................................... 33

Figure 3-13: Email Configuration .................................................................................................................................................................... 34

Figure 3-14: Log Configuration ........................................................................................................................................................................ 35

Figure 3-15: Account Credentials .................................................................................................................................................................... 36

Figure 4-1: Null Modem Cable ......................................................................................................................................................................... 37

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Figure 4-2: Gender Adapter .............................................................................................................................................................................. 37

Figure 4-3: Tera Term Pro Web Start Up ...................................................................................................................................................... 37

Figure 4-4: Serial Radio Button ........................................................................................................................................................................ 38

Figure 4-5: Setup ................................................................................................................................................................................................... 38

Figure 4-6: Serial Port Setup ............................................................................................................................................................................. 39

Figure 4-7: TMI Menus ........................................................................................................................................................................................ 40

Figure 4-8: Adjust Gain........................................................................................................................................................................................ 41

Figure 4-9: User Gain ........................................................................................................................................................................................... 41

Figure 4-10: Selecting Filter Programs .......................................................................................................................................................... 42

Figure 4-11: Default IP Address ....................................................................................................................................................................... 43

Figure 4-12: Login Screen .................................................................................................................................................................................. 43

Figure 4-13: Main Menu ..................................................................................................................................................................................... 44

Figure 4-14: Control Panel ................................................................................................................................................................................. 45

Figure 4-15: View Network Status and Tasks ............................................................................................................................................. 45

Figure 4-16: Change Adapter Settings.......................................................................................................................................................... 46

Figure 4-17: Local Area Network ..................................................................................................................................................................... 46

Figure 4-18: Internet Protocol Version 4 (TCP/IPv4) ............................................................................................................................... 47

Figure 4-19: Enter IP Address ........................................................................................................................................................................... 47

TABLE OF TABLES

Table P-1: Document Conventions .................................................................................................................................................................... x

Table A-1: Dynamic Range Thresholds ......................................................................................................................................................... 50

Table B-1:

700 MHz Filter Naming

Convention ........................................................................................................................................... 55

Table B-2: Cellular Filter File Naming Convention.................................................................................................................................... 56

Table B-3:

Canadian PCS Filter

File

Naming

Convention .......................................................................................................................... 57

Table B-4: US

PCS Filter

File

Naming

Convention ....................................................................................................................................... 58

Table C-1: Line of Sight Propagation Path Loss Table ............................................................................................................................ 61

Table D-1: Mechanical Specifications ............................................................................................................................................................ 62

Table D-2: Electrical Specifications ................................................................................................................................................................. 63

Table D-3: Power Requirements ...................................................................................................................................................................... 63

Table D-4: Environmental Requirements ..................................................................................................................................................... 63

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Table D-5: Operating Power Parameters ......................................................................................................................................................64

Table G-1: Acronyms and Abbreviations ..................................................................................................................................................... 76

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Preface

This Preface includes the following:

 Purpose

 Application

 Document Organization

 Document Conventions

 Product Registration Information

 Safety Guidelines

 Important Safety Information

 Industry Certifications/Registration Numbers

 Technical Support

 Acronyms and Abbreviations

Purpose

The purpose of this document is to provide a procedure to help experienced technicians/engineers install and

commission an in-building wireless enhancement repeater system using Westell Technologies digital repeaters. This

document was written to address the practical concerns of the installer. Following the procedures in this manual will

minimize risks associated with modifying a live system and will prevent service interruptions. This document assumes

the technician/engineer understands the basic principles and functionality involved with repeater and in-building

systems.

Application

Apply this

guide when

adding

digital repeater capability

to an

existing system

or

as part of a

new installation.

Document Organization

This manual includes the following chapters:

Chapter 1: Product Overview – Provides an overview of the DSP85 Repeater Series

Chapter 2: Optimizing the System during Installation – Provides information for optimization of the system

Chapter 3: Web-Based GUI – Provides information about using the system through a web-based graphical user

interface

Chapter 4: Console Interface – Provides information about local access to the repeater through console interface

Appendix A: Attenuation and Dynamic Range Guidelines – Provides information about attenuation and dynamic

range guidelines

Appendix B: Band Plans and Filter File Naming Conventions – Provides information about the band plans and filter

file naming conventions

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Appendix C: LTE Attenuator and Installation Notes – Provides the LTE Attenuator and installation notes including

donor and server isolation

Appendix D: Mechanical and Electrical Specifications– Provides mechanical and electrical specifications for this

product

Appendix E: Port Configurations – Details and illustrates the port configurations for each repeater type

Appendix F: Mechanical Configurations – Details and illustrates the mechanical configuration for each repeater type

Appendix G: Acronyms and Abbreviations – Provides a table of acronyms and abbreviations used in this manual and

a definition for each

Document Conventions

Table P-1 lists the conventions used throughout this document.

Table P-1: Document Conventions

Convention

Description

DANGER!

Description of an imminent hazard that, if not avoided, may result in severe injury or death.

WARNING!

Description of an imminent hazard that, if not avoided, may result in injury or serious

equipment damage.

CAUTION

Description of an imminent hazard that, if not avoided, could result in equipment damage.

IMPORTANT

Additional information that is very important for the user to know. More critical than a note,

but does not contain a Danger!, Warning! or Caution.

NOTE

Additional information or comments that may be beneficial for the user to know.

Bold

Bold typeface indicates commands, buttons, keyboard keys, user interface elements, and

provides emphasis.

Command1 >

Command2

The > symbol between commands indicates a succession of commands. For example, select

Start > Settings.

Key1+Key2

A plus sign between key names indicates simultaneous keyboard commands. Press and

hold down the first key while pressing the second key. For example, Ctrl+X.

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Product Registration Information

The product serial number is located on the label on the bottom panel, near the power connectors. Record the serial

number, model number, purchase date and point-of-sale company in the boxes in Figure P-1 below. Retain this

manual, along with proof of purchase, to serve as a permanent record of your purchase.

Figure P-1: Product Registration Information

Safety Guidelines

The general safety information in this section applies to both operating and service personnel. Specific warnings and

cautions are located in other parts of this manual to which they apply, but may not appear in this summary. Failure

to comply with these precautions or specific warnings elsewhere in the manual violates safety standards of design,

manufacture, and intended use of equipment. Westell Technologies assumes no liability for the customer’s failure to

comply with these requirements:

Grounding: This digital repeater system is designed to operate from 100 - 240 VAC and must always be operated

with the ground wire properly connected. Do not remove or otherwise alter the grounding lug on the power cord.

Explosive atmospheres: To avoid explosion or fire, do not operate this product in the presence of flammable gases

or fumes.

Lightning danger: Do not install or adjust this unit during an electrical storm. We strongly recommend the use of a

suitable lightning arrester.

There are no user-serviceable parts inside the repeater.

DANGER!

Hazardous voltages are present when the cover is removed. Do not open the

repeater enclosure. If you suspect a malfunction with this product, call your dealer

or call Westell Technologies technical support line at 1.877.844.4274.

WARNING!

Disconnect/remove power before connecting or disconnecting cables.

Important Safety Information

Antennas used to radiate signals indoors are limited to a maximum gain of 3 dBi. The outdoor antenna used to

communicate to the wireless infrastructure is limited to 14dBi gain, or any combination of gain and loss that equals

14 dB at input. Position each antenna to observe minimum separation requirements from all users and bystanders.

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Use the following guidelines when considering separation distances.

 Place indoor antennas such that, under normal conditions, personnel cannot come within 20 cm (~8

in) from any inside antenna. Adhering to this minimum separation ensures that bystanders cannot

exceed RF exposures beyond the maximum permissible limit for uncontrolled exposure.

 Position outdoor antennas such that, under normal conditions, personnel cannot approach closer

than 183 cm (~6 ft.). If a directional antenna that has a maximum gain of 14 dBi is used, take

precautions to prevent personnel from routinely passing through the main radiation beam at a

distance closer than specified.

WARNING. This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and QUALIFIED

INSTALLERS. You must have an FCC LICENSE or express consent of an FCC Licensee to operate this

device. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for

each continuing violation.”

WARNING! Changes and Modifications not expressly approved by Westell can void your authority to operate this

equipment under Federal Communications Commission’s rules.

Industry Certifications/Registration Numbers

FCC

 NVRCSI-DSP85-C/P, NVRCSI-DSP85201CP, NVRCSI-DSP85-U7C, NVRCSI-DSP85-PS7, NVRCSI-

DSP85-PSS8, NVRCSI-DSP25XCP, NVR-DSP251AWS, NVRCSI-DSP25XAWS, NVRCSI-DSP25XS8,

NVRCSI-DSP25XL7, NVRDSP-PCSGAWS3, NVRDSP-PCSG, and NVRDSP-AWS3

IC

 4307A-DSP25XHCP, 4307A-DSP25XS8, 4307A-DSP251AWS

UL

 Power supply: UL60950-1

Canadian Compliance Information

This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following

two conditions: (1) this device may not cause interference, and (2) this device must accept any interference,

including interference that may cause undesired operation of the device.

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence.

L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2)

l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en

compromettre le fonctionnement.

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Technical Support

If you suspect a malfunction with this product or if you have a technical question, call your dealer or the Westell

Technologies In-Building Wireless Support Line at (603) 626-6677, Toll Free (USA) 1-877-844-4274, press option 2

then option 1, or email us at ibwsupport@westell.com.

Acronyms and Abbreviations

Refer to the Appendix G at the end of this manual for definitions of the acronyms and abbreviations used in this

manual.

1

Product Overview

1.1 Product Information

Westell Technologies digital repeaters were developed for use within enclosed structures where sufficient signal

strength from local cell sites to operate cell phones is unavailable. Adequate signal strength must be available outside

the structure as a prerequisite to achieving in-building coverage. The digital repeater is connected to an external

antenna, usually on the roof, and to one or more internal antennas placed strategically throughout the area where

wireless service is desired.

The external antenna is typically a directional type, such as a Yagi antenna. Internal antennas are typically

omnidirectional, though various other types may be used, depending on the coverage application. The Westell DSP

repeater amplifies both the uplink (phone to tower) and downlink (tower to phone) signals, facilitating

communications to and from the intended wireless infrastructure.

With a maximum total of 85 dB nominal gain on both the uplink and downlink, gain can be adjusted over a range

from 53.5 dB to 85 dB in 0.5 dB steps. The repeater is controlled with a computer connected to COM port 1 or 2 or

via a crossover ethernet cable connected to the ethernet port.

A specific filtering process modifies each amplification chain. This process digitally converts the assigned spectrum

and then applies digital signal processing (DSP) techniques. DSP is used to create passbands that selects the RF

energy passing through either the uplink or downlink paths. After the digital processing is complete, the information

is converted back to an analog signal that is applied to the remaining stages of amplification. The resulting signals

emitted by the repeater are specific to the network service providers’ requirements. If these requirements change,

only the DSP configuration parameters must change. Configuration parameters are created at the factory and

supplied as files to be downloaded to the repeater. The filter set configurations stored in memory determine the

unit’s adaptability to various field applications. Appendix B describes the band plans and the convention Westell uses

to identify and store the files that make up the filter set. All Westell repeaters are shipped with an active filter set that

is programmed according to customer specifications. In most cases, the installer will not be required to program a

filter.

1.2 Functional Overview

Westell Technologies digital repeaters incorporate the following features for convenient operation, access, protection,

and control:

 Network configuration and control using either a web GUI accessed using a web browser or a menu

driven user interface using the serial port. The GUI does not require Internet access.

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 User gain control (affects all passbands)

 Automatic gain control

 Automatic power control

 Overdrive protection (PA limiting)

 Under/Over voltage protection

 Fault protection

 Alarm notification - local/remote

 Upgrade support - local/remote

 External interfaces - USB/ethernet/Serial

 Re-loadable filters - local/remote

 Web-based monitoring and control - local/remote

 Persistent status and error information

1.3 LED Indicator

Westell Technologies automatic safety precautions are built into the amplifier system. In the case of a catastrophic

system event, a shutdown circuit will disable all emissions if the uplink input or downlink input is overdriven or if an

oscillation or output overpower event occurs. The amplifier will periodically attempt to recover from the detected

condition.

Status LED states are:

 Blinking yellow: Unit is migrating the database after an upgrade

 Blinking red: Unit is programming the filter(s) and there is an error condition

 Blinking green: Boot up or unit is programming the filter(s) and no error condition exists

 Solid green: Unit is operational, PA is on

 Solid yellow: Unit is operational, but AGC is on

 Solid red: Unit has an error condition or PA is off

 Dark: Unit is not powered

Check the GUI status page for the nature of the fault.

NOTE

On power up, the repeater requires approximately three minutes for the internal

computer to boot. During this time, the LED labeled Power/Fault or Status will slowly

blink green on and off at a rate of approximately 1 Hz. This will indicate that the unit

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is in the boot up process. A blinking green LED (two seconds on/three seconds off)

indicates a filter configuration file is loading.

IMPORTANT

Do not unplug the repeater while it is in the boot-up process.

1.4 Local Communication Interface Ports

To allow monitoring and control, Westell repeaters are equipped with four ports that provide external communication

access: one ethernet, one DB-9 serial, and two USB ports. The ethernet port is a primary communications port to the

PC. The serial interface provides communications to a local PC. The USB interface provides a means to download

files from a memory device. The DB-9 pin assignments conform to the standard Electronic Industries Association

(EIA232) specification. A diagram of the pin descriptions is shown in Figure 1-1.

Figure 1-1: DB-9 Pin Descriptions

Connecting a serial cable to the COM port and using a terminal emulation program with a PC will allow

communication to the control processor’s Text Menu Interface (TMI).

1.5 EIA232 Pin Specifications

The connection diagram shown in Figure 1-1 is for reference only. It is intended as a resource for pinout information

if it is necessary to adapt your serial cable because of an unusual connector configuration. In the majority of cases,

this information is not needed.

1.6 USB Interface

This port is used for software updates and filter file uploads.

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1.7 Ethernet

This port is used to provide local or remote access to the GUI.

1.8 Monitoring and Alarms

The DSP85 Series can be monitored via an ethernet connection using SNMP, SSH and/or HTTP protocols. Public

safety DSP models have dry contacts for traditional alarm panel monitoring as well.

1.9 Circuit Operational Description

The repeater uses a single down-conversion/up-conversion scheme. There are multiple RF amplifier stages before

each down-converting mixer. The down-converting mixers are followed by a single IF amplifier. A digital signal

processor block processes the resultant digitized IF signal generated by an analog-to-digital converter. The filtered

digital signal is fed to a digital-to-analog converter and then up-converted to RF. A driver amplifier and power

amplifier make up the final gain stages before application to the diplexer. The maximum total system gain (diplexer

input to diplexer output) is nominally 85 dB for either the downlink or the uplink paths, with both links having

independent manual and Automatic Gain Controls (AGC).

AGC reacts to analog power detection on both the input and output of the uplink and downlink RF chains. A control

algorithm continuously monitors these detected values and dynamically adjusts various gain stages. The net system

gain value, entered manually, is optimally maintained without exceeding FCC parameters or overdriving the A/D

converters.

The Status or Power/Fault LED provides immediate visual indication of the unit’s primary power alarm status. The

repeater features automatic shutdown protection as a safety measure if excessive drive is applied to the input or an

oscillation condition occurs. When in a protected mode, a control algorithm determines the appropriate method of

recovery to a normal, previously defined state, or maintains the protection until it is manually reset. If recovery is

established, the LED is illuminated green or available to be reset. Events that trigger errors are saved in the event log.

1.10 Functional Block Diagrams

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Figure 1-2: Dual Band Functional Block Diagram

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Figure 1-3: Single Band Functional Block

Diagram

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2

Optimizing the System during Installation

2.1 System Setup Considerations

Check all cables for shorts and opens. Verify that there are no cables with loose or poor connections. RF leakage

could cause oscillation to occur under some conditions.

Check the rooftop antenna (donor antenna), if directional, for proper alignment along the calculated compass

heading. Typically, the directional antenna is aimed at the same site that your handset uses, but it may not always

be. It is critical that the installer contact the service provider for information about, and approval of, the selected cell

site before the system is activated.

IMPORTANT

The installation height of the antenna for AWS band (1700/2100 MHz) operations is

limited to 10 meters above ground for compliance with Section 27.50.

If cables and alignment are acceptable and a problem persists, it may be necessary to use a spectrum analyzer to

examine the signal environment in which the repeater is operating. The existence of strong adjacent channel signals

within the frequency band(s) can cause the AGC to reduce the amplifier’s gain or cause alarms. In some cases,

additional filtering or attenuation may be required to reject these unwanted signals. In some instances, the donor

antenna can be repositioned horizontally, to place the interference source in an antenna pattern null. There also may

be some cases where the interference from outside signals is so great that they cannot be filtered, reduced or

eliminated without expensive (and possibly prohibitive) measures. In these cases, it may not be practical to use the

repeater for providing coverage to these sites.

2.2 Suggested Spectrum Analyzer Setting

When troubleshooting RF issues and surveying challenging RF environments, it is important to have a spectrum

analyzer that is capable of measuring the frequency you are using. Use an attenuator to protect the input when

connected to a source of RF power, such as a repeater or a powered DAS.

Measure both uplink and downlink.

Measure downlink on the donor cable and at the output (server) port of the powered repeater.

Measure uplink at the lead from the DAS (on fiber-powered DAS, where the lead would connect to the server port on

the repeater) and at the donor port with the repeater power on.

Measurements may also be necessary at server antenna locations. The spectrum analyzer must be equipped with a

whip antenna.

Set the resolution bandwidth (RBW) to 200 kHz for GSM and 1 MHz for CDMA. If you cannot select these values, use

the closest available values. Set the video filter to about one-tenth of RBW. Set other settings, such as span, to the

appropriate values. Ensure that there are no signals above the top of the screen.

If you cannot see an adjacent out-of-band signal when using the 1 MHz RBW filter, decrease the RBW to see the

close-in-frequency signals. Set the RBW back when you want to measure the power level.

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2.3 Important Installation Notes

Inadequate isolation between the outside and inside antennas may cause regenerative feedback in the system. This

feedback can cause the amplifier to emit a continuous signal at maximum amplitude and, in some cases, interfere

with normal operation of the cell site. It is important to consider the layout and placement of the system carefully.

Refer to the Preface Safety Guidelines and Important Safety Information for proper antenna selection and

installation.

DANGER!

To avoid serious injury or death and repeater damage, do not install donor or server

antennas near overhead power lines or high power components. Allow enough

distance so that, if antennas fall, they will not contact those components.

WARNING!

Close proximity to the donor or server antennas with the repeater in operation may

expose the user or installer to RF fields that exceed FCC limits for human exposure.

CAUTION

Amplifier or handset damage may occur if a handset is connected directly to the

repeater or to the coax that leads to the repeater.

2.4 Installation Guidelines

2.4.1 Donor Antenna

 Accurately determine the azimuth to the donor cell site.

 Obtain the donor site information and approval from the service provider/carrier.

 Ensure that the radiation path to the donor cell site is as unobstructed as possible.

 Mount the donor antenna at or toward the edge of the roof, in the direction of the donor site. Try

to avoid having the RF signal from the donor pass above the location(s) of the service antennas.

Normally, service antennas are located behind and below the donor antenna (as viewed from above).

This approach will help avoid interference and feedback to and from the service antennas.

 Normally, mounting the donor antenna higher will allow a less obstructed path to the donor site.

However, in high traffic metro areas avoid mounting the donor antenna any higher than necessary

as the quality of the donor signal may start to become less stable and it is more likely to encounter

adjacent channel interference.

 When possible, shield the donor antenna’s rear by locating it so that HVAC units and/or penthouse

structures are behind the antenna, relative to the donor cell site location.

 Ground system components in accordance with NEC 810-15, 21 as required.

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2.4.2 Antennas

 Use omnidirectional antennas indoors, and locate them centrally with respect to the intended

coverage area to minimize signal leakage to the outside. Use directional antennas indoors only in

special cases when higher gain and directionality would be helpful and RF exposure limits will not be

exceeded.

 To avoid repeater uplink overload and gain limiting, mount the indoor antennas away from areas

where mobile subscribers frequently use their phones such as desks or dispatch areas.

 To determine the quantity and locations of indoor antennas, use an appropriate phone’s signal meter

to determine areas of weak signals. These are the approximate areas where indoor antennas may be

needed. Be aware the signal from an indoor antenna, in most cases, can be expected to penetrate

about two standard office sheetrock-type walls to reach users. After two walls, or if the walls are

made of other materials, it may be necessary to split the available signal and add more antennas.

2.5 Optional Accessories

A complete line of accessories is available from Westell. Check with your Westell distributor for any additional items

needed. Below are just a few examples suitable for most in-building needs:

2.5.1 Outside Donor Antenna

 PCS - model number CSI-AY/1.85-1.99/10

 Cellular - model number CSI-AY/806-960/14

2.5.2 Inside Omnidirectional Antenna

 Quad-band - model number ClearLink-O/698-2.7K/N

2.5.3 Power Dividers

 2:1 - model number ClearLink -SPD2/698-2.7K-LP/N

 3:1 - model number ClearLink -SPD3/698-2.7K-LP/N

 4:1 - model number ClearLink -SPD4/698-2.7K-LP/N

2.5.4 Grounding Kit

 Model number CSI-GKIT

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2.5.5 Directional Couplers

 6 dB - model number ClearLink-DC6/698-2.7K/N

 10 dB - model number ClearLink -DC10/698-2.7K/N

 15 dB - model number ClearLink -DC15/698-2.7K/N

 20 dB - model number ClearLink -DC20/698-2.7K/N

 30 dB - model number ClearLink -DC30/698-2.7K/N

2.5.6 19” Rack Shelf

 Model number CSI-RMS-250

2.5.7 UPS

 Battery backup, two hour single-band, one hour dual-band - model number CS48-985-600

 Battery backup, four hour single-band, two hour dual-band - model number CS48-985-601

2.5.8 Cross Band Couplers

 Quad-band Rack Mount - model number CSI-CM250-7/C/AW/P (700 LTE, Cellular, PCS and AWS)

 Quad-band Wall Mount - model number CSI-CBC/QUAD/N (700 LTE, Cellular, PCS and ASW)

 Tri-band Rack Mount - model number CSI-CM250-U7C/C/P (700 Upper C LTE, Cellular and PCS)

 Tri-band Wall Mount - model number CSI-CBC21/740-1990/N (700 Upper C LTE, Cellular and PCS)

 Tri-band Rack Mount - model number CSI-CM250-L7/C/P (700 Lower A/B/C LTE, Cellular and PCS)

 Tri-band Wall Mount - model number CSI-CBC21/696-1990/N (700 Lower A/B/C LTE, Cellular and

PCS)

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3

Web-based GUI

3.1 Web-based GUI Session

You may access the repeater using a LAN connection and a web browser program such as Internet Explorer, Figure

3-1.

Figure 3-1: User Connection Login

The repeater ships with the default IP address of 192.168.1.100, but you can change it later if you need to.

1. If connecting directly to the repeater from a laptop or PC with a crossover CAT-5e cable or over a

LAN, enter the IP address of the repeater into the browser address line to connect.

2. Most users will need to update the TCP/IP settings on their computer to enable connection to a host

that has a static IP. Refer to section 4.4 Additional Tips for more information.

a. Select Use the following IP Address and enter the IP address as follows: 192.168.1.x, where

‘x’ is any number from 2 to 254, inclusive, except 100. The subnet mask is 255.255.255.0.

Refer questions pertaining to these settings to your IT department, or review section 4.4

Additional Tips.

3. When connection is made, you will be prompted for a user name and password. For the purpose of

the GUI session, enter the default user name webuser and the password is csi1234, shown in Figure

3-1. Username and password can be changed as required.

Internet access is not required to use the GUI. If you are connecting using a laptop, verify that your ethernet port has

power. Some laptops will not allow ethernet connection when on battery power. If this occurs, connect to AC line

power or update the power settings.

NOTE

The GUI screens shown throughout this manual show a dual-band Cell/PCS

configuration. They are for illustration purposes only. The actual screen you see will

depend on the individual configuration.

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3.2 System Status

After login, the System Status page displays, Figure 3-2. The Navigation Menu on the left side of the page

(highlighted in Figure 3-2) shows available operations. Clicking a menu item displays the page for that operation.

Figure 3-2: System Status

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3.3 Local Network

Click Local Network in the System Status left page menu to display the Local Network screen, Figure 3-3, displays.

This page allows you to modify the network configuration. The default Boot Mode is Static. Check with your IT

department for explanation and approval of the DHCP and DHCP server options you plan to use before you select

them.

Figure 3-3: Local Network

NOTE

In repeaters with software version 2.2.4 or older, only letters, numbers and

underscores are acceptable in the text fields. In repeaters with software version 2.3.0

and newer, underscores are unacceptable. Hyphens are acceptable.

After you have made the necessary changes, refresh the page to review the fields and ensure the information is correct.

NOTE

Changing network settings causes the current TCP/IP connection to fail because

changes take effect immediately.

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3.4 RF Configuration

Click RF Configuration in the left page to display and modify the RF Configuration page, Figure 3-4.

To change gain settings, select the Uplink only or Uplink and downlink radio buttons. Enter the desired gain value

between 53.5 dB and 85 dB. The repeater will not allow values outside this range. Implement change in gain by

clicking the Change Settings button at the bottom of the page.

Figure 3-4: RF Configuration

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3.5 Program a Filter

Click Program a Filter in the left page menu. The Program a Filter page, Figure 3-5, displays. Change the selected

filter in the band/sub-band and modulation options.

Deselect undesired bands/sub-bands if they are selected (highlighted). The Clear All button on the selected band

deselects all band and sub-bands simultaneously. Clicking the Program button completes the selection and loads

the desired filter. This process may take several minutes. If the desired filter is not currently in the repeater, additional

filters, along with instructions on how to load them, are available by contacting Westell Technologies.

Figure 3-5: Program a Filter

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3.6 Remote Network

If the repeater includes a USB modem kit, click Remote Network in the left page menu. The Remote Network page

displays, Figure 3-6. Highlight the carrier on whose network the repeater and modem will be configured and click

the Change Settings button. Refer to the documentation included with the modem kit for additional information

about modem configuration. If the repeater is connected to an ethernet device for remote access and/or monitoring,

this feature must be disabled.

Figure 3-6: Remote Network

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3.7 SNMP Configuration

To change SNMP settings, click SNMP Configuration in the left page menu. The SNMP Configuration page, Figure

3-7, displays. Check with an IT professional for proper SNMP setting requirements.

Figure 3-7: SNMP Configuration

3.8 Time Configuration

Click Time Configuration in the left page menu to display the Time Configuration page, Figure 3-8. This page

allows you to set the current system time and time zone.

Figure 3-8: Time Configuration

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3.9 System Health

Click System Health in the left page menu to display the System Health page, Figure 3-9. This page displays the

current repeater status. Click the Clear Log button to clear LED indicators, alarms and the event log. If required,

display the System Health screen, click Trigger Test Alarm and wait for confirmation that the WSP representative

that is responsible for monitoring the repeater has been notified of the alarm.

Be sure to click Clear All Logs before logging out of the Web interface.

Figure 3-9: System Health

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3.10 Install and Upload

Click Install & Upload in the left page menu to display the Install & Upload page, Figure 3-10. Use this page to

perform a software installation or upgrade. Contact Westell Technologies for new software versions.

Figure 3-10: Install & Upload

IMPORTANT

You must click to select the Yes radio button before you click the button.

If you do not, the installation will not be performed and an error message will

display.

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3.11 Reboot

Click Reboot in the left menu to display the Reboot page, Figure 3-11, which allows you to reboot the repeater. A

reboot takes approximately three to five minutes to complete.

Figure 3-11: Reboot

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3.12 Alarm Configuration

Click Alarm Configuration in the left page menu to display the Alarm Configuration page, Figure 3-12. This page

displays the current alarm configurations for each band and allows you to make changes by editing alarm settings

and the clicking the Apply Settings button. Letters, numbers and hyphens are the only acceptable nomenclature for

the location field. Hyphens may not be used as the first or last character.

Figure 3-12: Alarm Configuration

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3.13 Email Configuration

Clicking Email Configuration in the left page menu displays the Email Configuration page, Figure 3-13. This page

allows you to enter up to five e-mail addresses to which the repeater can send specified alarm messages. Alarm

messages can be sent only when the repeater is connected via ethernet or wireless modem, and e-mail alarm

notification or remote networking are enabled. The software will not allow you to enter invalid characters in any field.

Figure 3-13: Email Configuration

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3.14 Log Configuration

Click Log Configuration to display the Log Configuration page, Figure 3-14. This page provides you with the ability

to change three aspects of the way log files are created and stored: Log Rotate Frequency, Log Rotate File Size and

Log Rotate File Count. Enter the desired settings for each and click the Configure Logs button to save the settings.

Figure 3-14: Log Configuration

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3.15 Account Credentials

Clicking Account Credentials in the left page menu displays the Account Credentials page, Figure 3-15. On this page,

you can create a new account or reset the repeater password. The old account is removed when the new account is

created. If you need to recover a password you have set, contact Westell Technologies technical support line at

1.877.844.4274, Option 2, then Option 1 for assistance.

Figure 3-15: Account Credentials

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4

Console Interface

4.1 Text Menu Interface (Local Access)

To gain local access to the repeater TMI, also known as the console

interface,

connect a null modem serial cable as

shown in Figure 4-1, from the serial

connector

of the laptop to the serial port on the repeater. This connector is labeled

COM. In some cases, if the gender of the

connector

is not the same as the connectors shown in Figure 4-1, a

gender adapter

(optional)

, Figure 4-2

may

also be required.

Figure 4-1: Null Modem Cable

Figure 4-2: Gender Adapter

Many terminal emulation programs will work if properly configured. In this section, Tera Term is used to establish

the TMI session.

Figure 4-3 displays when the application opens.

Figure 4-3: Tera Term Pro Web Start Up

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1. Select the Serial radio button and click OK, Figure 4-4.

Figure 4-4: Serial Radio Button

NOTE

It may be necessary, to determine which COM port your computer uses for the

communications port. Do this in by viewing the system properties section of the

control panel using device manager. In this case, the communications port is COM

1. This is not to be confused with the serial port on the bottom panel of the repeater

that is also labeled COM 1.

2. Click OK. A blank dialog screen, Figure 4-5 displays.

3. Click Setup to expand the drop-down menu, Figure 4-5 and select Serial port. The Serial Port Setup

window, Figure 4-6, displays. In this window, you can make changes to the serial port setup.

Figure 4-5: Setup

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4. Configure the terminal program for the correct COM port, Figure 4-6.

a. Under the Port drop-down list, select COM 1.

b. Under the Baud rate drop-down list, select 115200.

Figure 4-6: Serial Port Setup

5. After completing the serial port changes, click OK. A dialog displays, prompting you to enter a user

name and password.

6. Enter a username and password and press the Enter key. The TMI Main Menu displays, Figure 4-7.

IMPORTANT

In dual-band units, each band is changed independently and requires an

independent login. The default user name for the first band is bandone. The default

user name for the second band is bandtwo.

The password for both bands is csi1234.

7. The set parameters option is disabled by default. To enable it, press 1. A dialog displays, prompting

you to enter a user name and password.

8. Enter the default user name csi and the password csi1234.

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Figure 4-7: TMI Menus

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When you select an item in the Set Parameter menu, a sub-menu expands to allow configuration of the selected

parameter.

For example, Selecting 1 - Adjust Gain in the Link Configuration menu, displays the Links: menu shown in Figure

4-8.

Figure 4-8: Adjust Gain

Selecting option (1) downlink in the Links: menu displays the current user gain, Figure 4-9.

Change the gain value by entering the desired gain value at the prompt. You may return to the previous menu by

selecting r.

Figure 4-9: User Gain

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All other sub-menu items function in much the same way as the Adjust Gain item. Some of the items will offer

additional selections and will be self-explanatory. Figure 4-10 is one example of these additional options. This menu

displays when (3) Filter Programming is selected.

Figure 4-10: Selecting Filter Programs

IMPORTANT

Navigate to File>Disconnect to terminate a session. If you do not, the port may

become disabled and the system will need to be rebooted.

4.2 Telnet Session (Remote Access)

You may access the repeater using a LAN connection and a terminal emulation program for TCP/IP. As with the serial

connection, many terminal emulation programs will work, if properly configured.

In the following section, Tera Term is used to establish the Telnet session. The network configuration of the computer

and the repeater that is being controlled must be set up with the same subnet and subnet mask to establish a link.

In other words, the IP addresses of both the computer and the repeater must use the same group of IP address

number sets.

For example, the repeater ships with a default IP address of 192.168.1.100 and a subnet mask of 255.255.255.0, as

shown in Figure 4-11. To connect, the computer used for the link would normally need an IP address of, for example,

192.168.1.2 with a subnet mask of 255.255.255.0, the same subnet mask as the repeater.

In this example, the last digit of the IP address may be any number except 1,100 and 255. Configuring your PC is

straight forward, but it varies according to the operating system used. If you require assistance, contact your IT

department or you may review the 4.4 Additional Tips section.

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When the Tera Term application opens, the window in Figure 4-11 displays.

Figure 4-11: Default IP Address

1. Change the default host IP address to the IP address of the repeater to be controlled. In the case of a new

install, the default address is 192.168.1.100 and has been assigned at the factory.

a. Select Service>Telnet. The TCP port must be 23.

2. Click OK. The login screen, Figure 4-12, displays.

Figure 4-12: Login Screen

3. Enter the username and password.

IMPORTANT

In dual-band units, each band is changed independently and requires an

independent login. The low band default username is bandone. The high band

default username is bandtwo. In the field after the prompt, enter the user name for

the band to be changed. The default password is csi1234 for both bands.

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4. After you enter the password, press Enter. The main menu, Figure 4-13, displays. Telnet and serial sessions

both provide access to the same TMI.

Figure 4-13: Main Menu

4.3 Modem Interface (Remote Access with Login)

If the repeater is properly equipped, you may use a modem to gain remote access to the repeater. A selection of

modems are available as options.

After you have installed and activated the modem, you can access it from any web browser. Access response time

depends on many factors, some of which are:

 Quality of the connection (RF signal in the case of wireless modems)

 Technology (CDMA, LTE, GPRS, etc.)

 Network congestion (throughput)

When a connection has been established, the login screen shown in both the GUI Serial and Telnet examples displays.

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4.4 Additional Tips

Follow the steps in this section to change the TCP/IP settings on your Windows computer.

1. Open your computer’s Control Panel as shown in Figure 4-14.

Figure 4-14: Control Panel

2. Click on View network status and tasks, under Network and Internet as shown in Figure 4-15.

Figure 4-15: View Network Status and Tasks

3. On the left side, click Change adapter settings as shown in Figure 4-16.

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Figure 4-16: Change Adapter Settings

4. Right click Local Area Connections and select Properties as shown in Figure 4-17.

Figure 4-17: Local Area Network

5. Double click Internet Protocol Version 4 (TCP/IPv4), or highlight Internet Protocol Version 4 (TCP/IPv4)

and select Properties, Figure 4-18.

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Figure 4-18: Internet Protocol Version 4 (TCP/IPv4)

6. Click to select the radio button next to Use the following IP address, which will allow you to populate the

IP address and Subnet mask fields. In the IP address enter 192.168.1.2, and click OK, Figure 4-19.

NOTE

The Subnet mask will automatically populate to 255.255.255.0.

Figure 4-19: Enter IP Address

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7. Click OK, then click OK again.

8. Retry the connection.

Use a crossover ethernet cable (supplied) for web interface access. You must verify that the ethernet port on your

laptop is powered. If your laptop is on battery power, the ethernet port may be inactive by default. If this is the case,

plug the laptop into a 110 VAC source or change the power settings to enable the ethernet port when the laptop is

using battery power.

In some cases, DNS Server setup is required. To do this, log in as bandone through a SSH or serial connection. After

you have logged in, follow the setup instructions. The DNS Address is the IP address of the modem (enter it in twice).

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Appendix A

Attenuation and Dynamic Range Guidelines

A.1 Donor Port

If a repeater is installed in an area with very strong wanted and/or unwanted signals, ensure that the overall signal

levels are optimized to be within the best operating range of the repeater. Avoid de-sensing of a nearby base station

site. You can accomplish these goals by properly attenuating the antenna port(s) in the path of the donor antenna(s).

Imagine that the particular repeater deployment is electrically moved farther from the base station using attenuators

that are equivalent to increasing the path loss from the donor antenna to the base station.

The following outcomes may result from the use of attenuators on the donor port(s) of the repeater:

 Uplink output power, as reported by the unit, is reduced by the value of the attenuation, protecting nearby

base stations.

 Downlink signal-to-noise ratio is high at the point of the attenuator, resulting in slight but negligible

reduction in downlink performance.

 Other performance is essentially unchanged.

A.2 Server Port

Server port attenuation may also be necessary, particularly where a powered DAS is present. The selection guidelines

below apply to both server and donor ports. Use a signal generator to measure uplink signal strength properly.

If a signal generator is unavailable, place a test call while under the server antenna with the least path loss to the

repeater. This method should provide reasonable data.

The following potential outcomes result from the use of attenuators on the server port(s) of the repeater:

 downlink output power, as reported by the unit, is reduced by the value of the attenuation.

 Uplink incoming power from the DAS is reduced, along with potentially strong and/or harmful out-of-band

signals (including noise) that are generated by the DAS.

Choose accurate attenuator values to ensure that the maximum total power (higher of composite or in-band input)

applied to the donor and server port(s) does not exceed -25 dBm.

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A.3 Dynamic Range Thresholds

Table A-1: Dynamic Range Thresholds

Input Signal

Max Gain

Input Signal

Max Gain

<-45 dBm

85 dB

-32.2 dBm

69 dB

-44.3 dBm

84 dB

-31.4 dBm

68 dB

-43.6 dBm

83 dB

-30.6 dBm

67 dB

-42.9 dBm

82 dB

-29.8 dBm

66 dB

-42.2 dBm

81 dB

-29 dBm

65 dB

-41.5 dBm

80 dB

-28.2 dBm

64 dB

-40.6 dBm

79 dB

-27.4 dBm

63 dB

-39.7 dBm

78 dB

-26.6 dBm

62 dB

-38.8 dBm

77 dB

-25.8 dBm

61 dB

-37.9 dBm

76 dB

-25 dBm

60 dB

-37 dBm

75 dB

-24.4 dBm

59 dB*

-36.2 dBm

74 dB

-23.8 dBm

58 dB*

-35.4 dBm

73 dB

-23.2 dBm

57 dB*

-34.6 dBm

72 dB

-22.6 dBm

56 dB*

-33.8 dBm

71 dB

-22 dBm

≤55 dB*

-33 dBm

70 dB

*We recommend padding this level, due to potential for fluctuating signal.

-25 dBm is the maximum input signal level that can be applied to the repeater, even if the gain is set to 53.5 dB. Input

signals exceeding these thresholds will result in composite input attenuation, or analog-to-digital converter

protection (ADC protect). Output power is reduced whenever the above thresholds are exceeded by reducing the

gain by 1 dB for each 1 dB that the threshold is exceeded. Do not confuse ADC protect with AGC (automatic gain

control), which reduces gain to prevent in-band (measured) output power from exceeding the specified maximum

output level.

Gain levels that would result in exceeding the rated output power of the repeater, e.g. 65dB of gain applied to an

input signal of -30dBm, will not result in ADC protection, but will result in AGC. Avoid continually operating the

repeater in AGC.

To determine the total power applied to the donor and server ports, reference the composite input values as listed

on the System Status page in the web GUI.

A.4 Large Deltas between In-band and Composite Input Signals

Isolate the best donor site to ensure the least possible delta between in-band and composite downlink signals.

If the (downlink) composite input exceeds the in-band input by more than 3 dB Cellular, or more than 5 dB PCS, the

maximum output power will be reduced.

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1.877.844.4274 Page 51 of 77

Appendix B

Band Plans

and Filter File Naming Conventions

B.1 Frequency Band Plans

B.1.1

700 MHz Lower A, B and C Band Plan

Figure B-1: 700 MHz Lower A, B and C Band Plan

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DSP85 Series

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1.877.844.4274 Page 52 of 77

B.1.2

700 MHz Upper C Band Plan

Up Link

(MHz)

Down Link

(MHz)746

776

C0

UL776-787

DL746-757

C1

UL776.5-786.5

DL746.5-756.5

787

757

781.5

751.5

Figure B-2: 700 MHz Upper C Band Plan

B.1.3

Cellular Frequency Band Plan

824

Uplink

(MHz)

Downlink

(MHz)869

825

870

835

880

845

890

846.5

891.5

849

894

B’

A’

B

A

A”

UL 825-835

DL 870-880

UL 824-825

DL 869-870

UL 835-845

DL 880-890

UL 845-846.5

DL 890-891.5

UL 846.5-849

DL 891.5-894

Figure B-3:

Cellular Frequency Band

Plan

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1.877.844.4274 Page 53 of 77

B.1.4

AWS Frequency Band Plan

Mobile

(MHz)

Base

(MHz)2110

1710 1720

2120

1730 1735 1740 1745 1755

2130 2135 2140 2145 2155

A0 F0

DL2110-2120

UL1735-1740

DL2135-2140

UL1745-1755

DL2145-2155

F1

UL1710-1720

B0

UL1720-1730

DL2120-2130

A1 A2

UL1710-1715

DL2110-2115

UL1715-1720

DL2115-2120

B2

UL1725-1730

DL2125-2130

C0 D0 E0

UL1730-1735

DL2130-2135

UL1740-1745

DL2140-2145

F2

UL1745-1750

DL2145-2150

UL1750-1755

DL2150-2155

B1

UL1720-1725

DL2120-2125

Figure B-4: AWS Frequency Band Plan

B.1.5

Canadian PCS Frequency Band Plan

1850

1930

1865 1870 1885 1890 1895 1910

1945 1950 1965 1970 1975 1990

A0

A1 A2 A3

D0

B0

B1 B2 B3

E0 F0

C0

C1 C2 C3

UL 1850-1865

DL 1930-1945

UL 1865-1870

DL 1945-1950

UL 1870-1885

DL 1950-1965

UL 1885-1890

DL 1965-1970

UL 1890-1895

DL 1970-1975

UL 1895-1910

DL 1975-1990

UL 189 5-1900

DL 197 5-1980

UL 190 0-1905

DL 198 0-1985

UL 190 5-1910

DL 198 5-1990

UL 187 0-1875

DL 195 0-1955

UL 187 5-1880

DL 195 5-1960

UL 188 0-1885

DL 196 0-1965

UL 185 0-185 5

DL 193 0-1935

UL 185 5-1860

DL 193 5-1940

UL 186 0-186 5

DL 194 0-1945

Uplink

(MHz)

Downlink

(MHz)

Figure B-5: Canadian PCS Frequency Band Plan

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1.877.844.4274 Page 54 of 77

B.1.6

US PCS Frequency Band Plan

Uplink

(MHz)

Downlink

(MHz)

1850

1930

1865 1870 1885 1890 1895 1910

1945 1950 1965 1970 1975 1990

UL 1902.5-1910

DL 1982.5-1990

UL 190 0-1905

DL 198 0-1985

UL 190 5-1910

DL 198 5-1990

1915

1995

G0

A0

A1

A2

A3 A4 A5 D0

B0

B1B2

B3 B4 B5 E0 F0

C0

C1C2

C3 C4 C5

C6 C7 C9

UL 1850-1865

DL 1930-1945

UL 1865-1870

DL 1945-1950

UL 1870-1885

DL 1950-1965

UL 1885-1890

DL 1965-1970

UL 1890-1895

DL 1970-1975

UL 1895-1910

DL 1975-1990

UL 1895-1902.5

DL 1975-1982.5

UL 1902.5-1910

DL 1982.5-1990

UL 189 5-1900

DL 197 5-1980

UL 190 0-1905

DL 198 0-1985

UL 190 5-1910

DL 198 5-1990

UL 1895-1897.5

DL 1975-1977.5

UL 1897.5-1900

DL 1977.5-1980

UL 1900-1902.5

DL 1980-1982.5

UL 1902.5-1905

DL 1982.5-1985

C8

UL 1870-1877.5

DL 1950-1957.5

UL 1877.5-1885

DL 1957.5-1965

UL 1850-1857.5

DL 1930-1937.5

UL 1857.5-1865

DL 1937.5-1945

UL 187 0-1875

DL 195 0-1955

UL 187 5-1880

DL 195 5-1960

UL 188 0-1885

DL 196 0-1965

UL 185 0-1855

DL 193 0-1935

UL 185 5-1860

DL 193 5-1940

UL 186 0-1865

DL 194 0-1945

C11

C10

B6 B7 B9

B8 B11

B10

A6 A7 A9

A8 A11

A10 D1

D2 E1

E2 F1

F2

UL 1905-1907.5

DL 1985-1987.5

UL 1907.5-1910

DL 1987.5-1990

UL 1870-1872.5

DL 1950-1952.5

UL 1872.5-1875

DL 1952.5-1955

UL 1875-1877.5

DL 1955-1957.5

UL 1877.5-1880

DL 1957.5-1960

UL 1880-1882.5

DL 1960-1962.5

UL 1882.5-1885

DL 1962.5-1965

UL 1850-1852.5

DL 1930-1932.5

UL 1852.5-1855

DL 1932.5-1935

UL 1855-1857.5

DL 1935-1937.5

UL 1857.5-1860

DL 1935-1937.5

UL 1860-1862.5

DL 1940-1942.5

UL 1862.5-1865

DL 1942.5-1945

UL 1885-1887.5

DL 1965-1967.5

UL 1887.5-1890

DL 1967.5-1970

UL 1890-1892.5

DL 1970-1972.5

UL 1892.5-1895

DL 1972.5-1975

UL 1865-1867.5

DL 1945-1947.5

UL 1867.5-1870

DL 1947.5-1950

G2

*G block not

currently supported

in CSI repeaters.

*

Figure B-6: US PCS Frequency Band Plan

B.1.7

Public Safety Bands

Figure B-7: Public Safety Bands

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1.877.844.4274 Page 55 of 77

B.2 Filter File Naming Conventions

B.2.1

700 MHz Filter Naming Convention

Westell Technologies digital repeaters use an alphanumeric file naming convention for its filter files. The descriptions

below will allow you to understand the methodology to determine the desired file for your application.

Table B-1:

700 MHz Filter Naming

Convention

Column:

1

2

3

4

5

6

7

8

9

1

0

11

12

Definition:

Band

Mod

type

Block

1

Sub-

block

1

Block

2

Sub-

block

2

Block

3

Sub-

block

3

Block

4

Sub

-

block

4

Separator

Variant

l=

700MHZ

e=

E-UTRA

(Upper) l=

E-UTRA

(Lower)

A - C

0=Full

1-

7=Sub

A - C

0=Full

1-7=Sub

A -

C

0=Full

1-7=Sub

A -

C

0=Full

1-

7=Sub

-

0=Standard

NOTE

Modulation type determines the guard band at the edges of each passband. The

modulation type field will also be used to indicate a carrier who has a unique sub-

block designation.

Up to four sub-blocks may be defined, resulting in a maximum filename length.

All variant/guard band designators other than 0 (zero) and F are user-defined custom filters.

700 MHz examples

llA1B1-0 = (700 MHz band, E-UTRA mod type, Lower A1, B1, with standard guard band). leC0-0 = (700MHz band, E-

UTRA mod type, Upper C, with standard guard band).

llC1-0 = (700 MHz band, E-UTRA mod type, Lower C1, with standard guard band).

700 MHz upper block

Uplink Downlink

C0 776-787 746-757

700 MHz upper sub-block

Uplink Downlink

C1 776.5-786.5 746.5-756.5

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1.877.844.4274 Page 56 of 77

B.2.2

Cellular Filter File Naming Convention

Table B-2: Cellular Filter File Naming Convention

Column:

1

2

3

4

5

6

7

8

9

10

11

12

Definition:

Band

Mod

type

Block 1

Sub-block

1

Block 2

Sub-block

2

Block 3

Sub-block

3

Block 4

Sub-block

4

Separator

Variant

c=Cell

g=GSM

c=CDMA

A - B

0=Full

p=Prime

d=Double

prime

A - B

0=Full

p=Prime

d=Double

prime

A - B

0=Full

p=Prime

d=Double

prime

A - B

0=Full

p=Prime

d=Double

prime

-

0=Standard

Cell example

ccAdAp-0 = (Cellular band, CDMA mod type, A” and A’ with standard guard band).

Cellular blocks

Uplink Downlink

A0 825-835 870-880

B0 835-845 880-890

Cellular sub-blocks

Uplink Downlink

A’ 845-846.5 890-891.5

A” 824-825 869-870

B’ 846.5-849 891.5-894

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1.877.844.4274 Page 57 of 77

B.2.3

Canadian PCS Filter File Naming Convention

Table B-3:

Canadian PCS Filter

File

Naming

Convention

Column:

1

2

3

4

5

6

7

8

9

10

11

12

Definition:

Band

Mod

type

Block 1

Sub-

block 1

Block 2

Sub-block

2

Block 3

Sub-

block 3

Block 4

Sub-block

4

Separator

Variant

p=PCS

u=UMTS

See

note

A - F

0=Full

1-3=Sub

A - F

0=Full

1-3=Sub

A - F

0=Full

1-3=Sub

A - F

0=Full

1-3=Sub

-

can=

Custom

Canadian

filter

Canadian PCS example

puE0F0-can = (PCS band, UMTS mod type, E full, F full, Canadian Custom filter).

Canadian PCS blocks

Uplink Downlink

A0 1850-1865 1930-1945

D0 1865-1870 1945-1950

B0 1870-1885 1950-1965

E0 1885-1890 1965-1970

F0 1890-1895 1970-1975

C0 1895-1910 1975-1990

Canadian PCS sub-blocks

Uplink Downlink

A1 1850-1855 1930-1935

A2 1855-1860 1935-1940

A3 1860-1865 1940-1945

B1 1870-1875 1950-1955

B2 1875-1880 1955-1960

B3 1880-1885 1960-1965

C1 1895-1900 1975-1980

C2 1900-1905 1980-1985

C3 1905-1910 1985-1990

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1.877.844.4274 Page 58 of 77

B.2.4

US PCS Filter File Naming Convention

Table B-4: US

PCS Filter

File

Naming

Convention

Column:

1

2

3

4

5

6

7

8

9

10

11

12

Definition:

Band

Mod

type

Block 1

Sub-block

1

Block 2

Sub-block

2

Block 3

Sub-block

3

Block 4

Sub-block

4

Separator

Variant

p=PCS

g=gsm

A - F

0=Full

1-11=Sub

A - F

0=Full

1-11=Sub

A - F

0=Full

1-11=Sub

A - F

0=Full

1-11=Sub

-

0=Standard

US PCS example

pcA1C0E0F2-0 = (PCS band, CDMA mod type, A1, C full, E full, F2 with standard guard band).

US PCS blocks

Uplink Downlink

A0 1850-1865 1930-1945

D0 1865-1870 1945-1950

B0 1870-1885 1950-1965

E0 1885-1890 1965-1970

F0 1890-1895 1970-1975

C0 1895-1910 1975-1990

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1.877.844.4274 Page 59 of 77

US PCS sub-blocks

Uplink Downlink

A2 1850-1857.5 1930-1937.5

A1 1857.5-1865 1937.5-1945

A3 1850-1855 1930-1935

A4 1855-1860 1935-1940

A5 1860-1865 1940-1945

D2 1865-1867.5 1945-1947.5

D1 1867.5-1870 1947.5-1950

B2 1870-1877.5 1950-1957.5

B1 1877.5-1885 1957.5-1965

B3 1870-1875 1950-1955

B4 1875-1880 1955-1960

B5 1880-1885 1960-1965

E2 1885-1887.5 1965-1967.5

E1 1887.5-1890 1967.5-1970

F2 1890-1892.5 1970-1972.5

F1 1892.5-1895 1972.5-1975

C2 1895-1902.5 1975-1982.5

C1 1902.5-1910 1982.5-1990

C3 1895-1900 1975-1980

C4 1900-1905 1980-1985

C5 1905-1910 1985-1990

NOTE

Modulation type determines the guard band at the edges of each passband. The

modulation type field will also be used to indicate a carrier who has a unique sub-

block designation.

Up to four sub-blocks may be defined, resulting in a maximum filename length.

All variant/guard band designators other than 0 (zero) and F are user-defined custom filters.

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1.877.844.4274 Page 60 of 77

B.2.5

AWS Filter Naming Convention

Column:

1

2

3

4

5

6

7

8

9

10

11

12

Definition:

Band

Mod type

Block

1

Sub-block

1

Block

2

Sub-block

2

Block

3

Sub- block

3

Block

4

Sub-block

4

Separator

Variant

a=AWS

g=gsm

c=CDMA

w=WCDMA

e=E-UTRA

l=LTE

u=UMTS

A - F

0=Full

1-2=Sub

A - F

0=Full

1-2=Sub

A - F

0=Full

1-2=Sub

A - F

0=Full

1-2=Sub

-

0=Standard

AWS example

acA1C0E0F2-0 = (AWS band, CDMA mod type, A1, C full, E full, F2 with standard guard band).

AWS blocks

Uplink Downlink

A0 1710-1720 2110-2120

B0 1720-1730 2120-2130

C0 1730-1735 2130-2135

D0 1735-1740 2135-2140

E0 1740-1745 2140-2145

F0 1745-1755 2145-2155

AWS sub-blocks

Uplink Downlink

A1 1710-1715 2110-2115

A2 1715-1720 2115-2120

B1 1720-1725 2120-2125

B2 1725-1730 2125-2130

F1 1745-1750 2145-2150

F2 1750-1755 2150-2155

NOTE

Modulation type determines the guard band at the edges of each passband. The

modulation type field will also be used to indicate a carrier who has a unique sub-

block designation.

Up to four sub-blocks may be defined, resulting in a maximum filename length of 12 characters. All variant/guard

band designators other than 0 (zero) are user defined custom filters.

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1.877.844.4274 Page 61 of 77

Appendix C

LTE Attenuator and Installation Notes

C.1 Important LTE Attenuator and Installation Notes - Donor and Server Isolation

Inadequate isolation between the outside and inside antennas may cause regenerative feedback in the system.

Carefully consider the layout and placement of the system. Set repeater gain well below line of sight donor path loss,

as shown in C.1.1 Line of Sight Propagation Path Loss Table. Higher gain settings may be possible if the internal

building structure and system layout adds additional attenuation and the installer is confident about the values of

that attenuation.

C.1.1

Line of Sight Propagation Path Loss Table

Table C-1: Line of Sight Propagation Path Loss Table

Distance between donor and

server antenna

Free space path loss

Max gain 2

Max gain with 20 dB

attenuation from building

structure 2

10 m 1

50 dB 1

55 dB 1

40 m 1

62 dB 1

55 dB 1

67 dB 1

60 m 1

65.5 dB 1

55 dB 1

70.5 dB 1

100

m

70

dB

55

dB

75

dB

120

m

71.5

dB

56.5

dB

76.5

dB

143

m

73

dB

58

dB

78

dB

160

m

74

dB

59

dB

79

dB

180

m

75

dB

60

dB

80

dB

200

m

76

dB

61

dB

81

dB

239

m

77.5

dB

62.5

dB

82.5

dB

268

m

78.5

dB

63.5

dB

83.5

dB

284

m

79

dB

64

dB

84

dB

300

m

79.5

dB

64.5

dB

84.5

dB

318

m

80

dB

65

dB

85

dB

NOTE1

Antenna separation under 100 meters requires additional attenuation greater than

20 dB.

NOTE2

Maximum gain assumes no loss or gain in donor seen, coax distribution, or active

DAS.

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1.877.844.4274 Page 62 of 77

Appendix D

Mechanical and Electrical Specifications

D.1 Digital Repeater Mechanical and Electrical Specifications

D.1.1

Mechanical Specifications

Table D-1: Mechanical Specifications

Parameters

Single Band

Dual Band

Repeater Dimensions

DSP85/DSP85-201

18.5 x 10 x 4.7 in (approx.)

19.25 x 18.6 x 4.7 in (approx.)

DSP85N

20 x 16 x 6 in (approx.)

-

DSP85-250 and 251

19 x 18 x 3.5 in (2U) (approx.)

DSP95-255

18.63 x 19.25 x 5.25 in (3U)

(approx.)

18.63 x 19.25 x 5.25 in (3U)

(approx.)

Weight/Shipping Weight

DSP85/DSP85-201

23 lbs / 28 lbs (approx.)

42 lbs / 50 lbs (approx.)

DSP85N

23 lbs / 28 lbs (approx.)

-

DSP85-250 and 251

17 lbs / 27 lbs (approx.)

21 lbs / 31 lbs (approx.)

DSP95-255

24 lbs / 28 lbs (approx.)

34 lbs / 38 lbs (approx.)

Connectors

N-female or 4.3-10

Thermal management

Convection cooled

Surface coating

Powder

coat

Powder

coat

Color

Satin

black

Satin

black

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1.877.844.4274 Page 63 of 77

D.1.2

Electrical Specifications

Table D-2: Electrical Specifications

Parameters

Single Band

Dual Band

Passband Options

1 MHZ – full band

Linear output power (typical)

½ Watt

27dBm

1 Watt

30dBm

5 Watts

37dBm

Noise figure @ max. gain

5.0 dB

Propagation Delay

<2.5 microseconds

Gain Adjustment Range

30dB, 0.5 dB steps

VSWR

<1.5:1

Spurious emissions

<-13dBm

Input/output impedance

50 ohms

D.1.3

Power Requirements

Table D-3: Power Requirements

Parameters

Single Band

Dual Band

½ Watt

0.9 Amps @ 120 VAC / 0.5 Amps @

230 VAC

1.5 Amps @ 120 VAC / 0.8 Amps @

230 VAC

1 Watt

0.7 Amps @ 120 VAC / 0.6 Amps @

230 VAC

1.7 Amps @ 120 VAC / 0.9 Amps @

230 VAC

5 Watt

1.2 Amps @ 120 VAC / 0.7 Amps @

230 VAC

2.0 Amps @ 120 VAC / 1.1 Amps @

230 VAC

D.1.4

Environmental Requirements

Table D-4: Environmental Requirements

Parameters

Single Band

Dual Band

Operating Temperature

10°C to 50° C

(50°

F to

122°

F)

10°C to 50° C

(50°

F to

122°

F)

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1.877.844.4274 Page 64 of 77

D.1.5

Operating Power Parameters

Table D-5: Operating Power Parameters

Parameters

Specifications

Notes

Maximum RF input power

without damage

10

dBm

Linear

gain

85

dB

Factory calibrated gain

Pass band ripple

±1.5

dB

Automatic gain control (AGC)

30 dB max range

In 0.5 dB steps

Manual gain control

53.5 dB to 85 dB

In 0.5 dB steps

OIP3

41

dBm

Measured with two CW tones at 14

dBm/

tone

RMS vector error (EVM)

3%

max

TDMA, EDGE, W-CDMA, CDMA2000

CDMA RHO

0.98

min

CDMA2000, 1x-EVD0

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1.877.844.4274 Page 65 of 77

Appendix E

Port Configurations

E.1 Digital Repeater Port Configurations, Original Series

E.1.1

Dual-band D2:D1 Port Configuration

Input: Two single-band duplex ports, one from the low-band donor antenna and one from the high-band donor

antenna.

Output: One dual-band duplex port to the server antennas.

Figure E-1: Dual-band D2:D1 Port Configuration

E.1.2

Dual-band D1:D2 Port Configuration

Input: One dual-band duplex port from dual-band donor antenna.

Output: Two single-band duplex ports, one to the low-band server antennas and one to the high-band server

antennas.

Figure E-2: Dual-band D1:D2 Port Configuration

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1.877.844.4274 Page 66 of 77

E.1.3

Dual-band D2: D2 Port Configuration

Input: Two single-band duplex ports, one from the low-band donor antenna and one from the high-band donor

antenna.

Output: Two single-band duplex ports, one to the low-band server antennas and one to the high-band server

antennas.

Figure E-3: Dual-band D2: D2 Port Configuration

E.1.4

Dual-band D1:D1 Port Configuration

Input: One dual-band duplex port from dual-band donor antenna.

Output: One dual-band duplex port to dual-band server antennas.

Figure E-4: Dual-band D1:D1 Port Configuration

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1.877.844.4274 Page 67 of 77

E.1.5

Single-band D1:D1 Port Configuration

Input: One single-band duplex port from donor antenna.

Output: One single-band duplex port to server antennas.

Figure E-5: Single-band D1:D1 Port Configuration

E.1.6

Dual-band D2:S4 Port Configuration

Input: Two single-band duplex ports from the donor antenna, one from the high-band, one from the low-band.

Output: Four dingle-band simplex ports, two uplink, two downlink, one uplink and one downlink for each band.

Figure E-6: Dual-band D2:S4 Port Configuration

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1.877.844.4274 Page 68 of 77

E.1.7

Dual-band D1:S4 Port Configuration

Input: One dual-band duplex port from dual-band donor antenna.

Output: Four single-band simplex ports, two uplink, two downlink, one uplink and one downlink for each band.

Figure E-7: Dual-band D1:S4 Port Configuration

E.1.8

Single-band D1:S2 Port Configuration

Input: One single-band duplex port from donor antenna.

Output: Two single-band simplex ports, one for uplink and one for downlink.

Figure E-8: Single-band D1:S2 Port Configuration

Digital Repeater Line

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E.2 Digital Repeater Port Configurations

E.2.1

Dual-band D2:D1 Port Configuration

Input: Two single-band duplex ports, one from the low-band donor antenna and one from the high-band donor

antenna.

Output: One dual-band duplex port to the server antennas.

Figure E-9: Dual-band D2:D1 Port Configuration

E.2.2

Dual-band D1:D2 Port Configuration

Input: One dual-band duplex port from dual-band donor antenna.

Output: Two single-band duplex ports, one to the low-band server antennas and one to the high-band server

antennas.

Figure E-10: Dual-band D1:D2 Port Configuration

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E.2.3

Dual-band D2:D2 Port Configuration

Input: Two single-band duplex ports, one from the low-band donor antenna and one from the high-band donor

antenna.

Output: Two single-band duplex ports, one to the low-band server antennas and one to the high-band server

antennas.

Figure E-11: Dual-band D2:D2 Port Configuration

E.2.4

Dual-band D1:D1 Port Configuration

Input: One dual-band duplex port from dual-band donor antenna.

Output: One dual-band duplex port to dual-band server antennas.

Figure E-12: Dual-band D1:D1 Port Configuration

E.2.5

MIMO Port Configuration

Input: Two single-band duplex ports, one from the first band donor antenna and one from the second band donor

antenna.

Output: Two single-band simplex ports, one for uplink and one for downlink.

Figure E-13: MIMO Port Configuration

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E.2.6

Single-band D1:D1 Port Configuration

Input: One single-band duplex port from donor antenna.

Output: One single-band duplex port to server antennas.

Figure E-14: Single-band D1:D1 Port Configuration

E.2.7

Dual-band D2:S4 Port Configuration

Input: Two single-band duplex ports from the donor antenna, one from the high-band, one from the low-band.

Output: Four dingle-band simplex ports, two uplink, two downlink, one uplink and one downlink for each band.

Figure E-15: Dual-band D2:S4 Port Configuration

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E.2.8

Dual-band D1:S4 Port Configuration

Input: One dual-band duplex port from dual-band donor antenna.

Output: Four single-band simplex ports, two uplink, two downlink, one uplink and one downlink for each band.

Figure E-16: Dual-band D1:S4 Port Configuration

E.2.9

Single-band D1:S2 Port Configuration

Input: One single-band duplex port from donor antenna.

Output: Two single-band simplex ports, one for uplink and one for downlink.

Figure E-17: Single-band D1:S2 Port Configuration

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Appendix F

Mechanical Configurations

F.1 DSP85-250 and DSP85-251 Series Mechanical Drawing

Figure F-1: DSP85-250 and DSP85-251 Series Mechanical Drawing

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F.2 DSP85-250 and DSP85-251 Series Mounting

The following diagrams illustrate the methods for mounting the repeater(s) in a typical wall or rack installation.

Brackets are provided for both options.

Rack mounting a repeater requires two brackets mounted to the front corners of each module, Figure F-2.

Figure F-2: Rack Mounting

Wall mounting uses four brackets, one at each corner.

Figure F-3: Wall Mounting

NOTE

Westell digital repeaters must be supported in the rack system with a shelf or slide

rail. Do not rely on the brackets exclusively to support all the weight of the

modules.

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Mount the cross band coupler on the wall close enough to the repeater modules to allow the RF jumpers to reach

from the CBC to the repeaters. The attachment system used to anchor the CBC to the wall must be able to support

at least 8.4 lbs (3.8 kg).

Use a wall anchoring system for the repeaters that can support at least 42.lbs (19.05 kg) for each dual band module

and 23 lbs (10.43 kg) for each single band add on module. The power supplies are mounted approximately as

shown.

Figure F-4: System Interconnect

Interconnection of the repeaters in the rack or wall mount configuration requires the short RF jumpers supplied with

the CBC Module. The actual interconnections will depend on the bands and cross band coupler module being used.

Contact Westell’s technical support line at 1.877.844.4274 should you have questions about your specific

application.

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Appendix G

Acronyms and Abbreviations

Table G-1 is a list of acronyms and abbreviations used in this manual.

Table G-1: Acronyms and Abbreviations

Acronym/Abbreviation

Definition

AGC

Automatic Gain Control

APC

Automatic Power Control

AUI

Attachment Unit Interface

CPU

Central Processing Unit

DAS

Distributed Antenna System

DHCP

Dynamic Host Configuration Protocol

DSP

Digital Signal Processing

EEPROM

Electrically Erasable Programmable Read-Only Memory

ERP

Effective Radiated Power

FCS

Feedback

FPGA

Field Programmable Gate Array

LED

Light Emitting Diode

OIP3

Third-order Intercept Point

RF

Radio Frequency

SBC

Single Board Computer

SNMP

Simple Network Management Protocol

TMI

Text Menu Interface

UHCI

Universal Host Controller Interface

USB

Universal Serial Bus

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960-1666-MNL

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Westell DSP85-U7CPG Digital Repeater User Manual Number

Westell, Inc. Digital Repeater Number

User Manual

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