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Release Date: February, 1997

Installer’s Guide

CYLINK CORPORATION 
910 Hermosa Court
Sunnyvale, California 94086, USA
[phone]
CYLINK LIMITED U.K.
Tel: [phone]
Fax: [phone]
CYLINK CORPORATION (Singapore)
Tel: [phone]
Fax: [phone]
CYLINK CORPORATION (New Delhi)
Tel/Fax: [phone]
CYLINK CORPORATION (Beijing)
Tel: [phone]
Fax: [phone] 
CYLINK CORPORATION (Karachi)
Tel: [phone]
Fax: [phone]
CYLINK CUSTOMER SUPPORT
1-800-545-6608 (USA - California)
1-800-814-5587 (USA - New Jersey)
1-408-735-5822 (International - California)
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[phone] (Cylink Limited - U.K.)


AirLink Pro 64S

¤

COPYRIGHT © 1994 - 1997 Cylink Corporation World Rights Reserved.

Cylink Corporation provides this Manual “as is,” without warranty of any kind, either express or implied,
including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.
Cylink Corporation may make improvements and changes to the product described in this Manual at any
time and without any notice. Cylink Corporation assumes no responsibility for its use, nor any infringements
of patents or other rights of third parties that would result.

This Manual could contain technical inaccuracies or typographical errors. Periodic changes are made to the
information contained herein; these changes will be incorporated in new editions of the Manual.

No part of this publication may be stored in a retrieval system, transmitted, or reproduced in any way,
including but not limited to photocopy, photograph, magnetic or other records, without the prior written
permission of Cylink Corporation.

CYLINK is a registered trademark of Cylink Corporation; AirLink is a trademark of Cylink Corporation.
Windows™ is a trademark of Microsoft Corporation. ProComm is a registered trademark of Datastorm

Technologies, Inc.
All other brand and product names are the trademarks of their respective holders.

PRODUCT COMPATIBILITY

While every effort has been made to verify operation of this product with many different communications
products and networks, Cylink Corporation makes no claim of compatibility between its products and other
vendors’ equipment. It is assumed that users have thoroughly evaluated this product’s performance in the
communications environment in which it will be used.

SAFETY

The following general safety precautions must be observed during all phases of operation and service of this
product. Failure to comply with these precautions or with specific warnings elsewhere in this Manual willfully
violates standards of design, manufacture, and intended use of the product. Cylink Corporation assumes no
liability for the customer’s failure to comply with these requirements.

This product must be grounded. In the event of a short circuit, grounding reduces the risk of electrical shock
by providing an escape wire for the current.

Do not install or operate this product in the presence of flammable gases or fumes. Operation of any
electrical instrument in such an environment constitutes a definite safety hazard.

No user maintained or adjustable components are present within this product. The covers should not be
removed by anyone other than authorized Cylink service personnel. The potential for electrical shock exists
within the enclosure at all times unless it is unplugged.

Do not install substitute parts or perform any unauthorized modification to the AirLink Pro 64S. Return the
product to Cylink Corporation for service and repair to ensure that safety features are maintained. Prior to
returning any product(s) for repair, contact Cylink at the telephone numbers or address located on the front
of this Manual, and obtain a Return Material Authorization (RMA) number.

Changes or modifications not expressly approved by Cylink Corporation can void the user’s authority to
operate the equipment.

LITHIUM BATTERY

The digital module in the AirLink Pro 64 contains a lithium battery molded into the real-time clock component
(see Appendix B for the life span of the battery). The lithium battery is NOT a customer-replaceable part. The
lithium battery could explode if mistreated. Do not attempt to expose the battery by opening the real-time
clock component. Do not attempt to recharge the battery. Do not dispose of the component by fire.

SYSTEM GROUNDING

Direct grounding of the antenna, mast, and tower serves as protection from lightning strikes and static
buildup. A direct electrical connection should be made to a suitable grounding rod at the base of the tower or
mast using at least one-inch wide copper grounding strap, or its equivalent, and non corrosive hardware.
For details and safety standards, consult the appropriate local Electrical Codes or a similar document. Use
lightning arrestors in appropriate places.

TOWER CONSTRUCTION

Compliance with local zoning and tower construction regulations is recommended when AirLink Pro 64
systems require a tower. These regulations generally mandate that permits be obtained before any tower
construction begins. Check with local zoning and aviation authorities for more information.

FCC NOTICE TO USERS

The AirLink Pro 64S complies with Part 15 of the FCC rules. Operation is subject to the condition that this
device does not cause harmful interference.

Federal Communications Commission (FCC) Rules on spread spectrum devices, such as the AirLink Pro
64S, require that you be notified of the following:

FCC regulations require that this device be professionally installed by a person knowledgeable in electronics
and trained in the correct installation of this device.

All interface cables must be shielded.
Operation of this device is subject to the following two conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference that may cause undesired operation.

CANADIAN NOTICE TO USERS

This class B digital apparatus meets all the requirements of the Canadian Interference-Causing Equipment
Regulations.

Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur
du Canada.

Changes or modifications not expressly approved by Cylink Corporation can void the user’s authority to
operate the equipment.

STATEMENT OF WARRANTY

CYLINK products, except as stated otherwise in an applicable price list, are warranted against defects in
workmanship and material for a period of one (1) year from date of delivery as evidenced by CYLINK’s
packing slip or other transportation receipt.

CYLINK’s sole responsibility under this warranty shall be to either repair or replace, at its option, any
component which fails during the applicable warranty period because of a defect in workmanship and
material, provided PURCHASER has promptly reported same to CYLINK in writing. All replaced Products or
parts shall become Cylink’s property.

CYLINK shall honor the warranty at CYLINK’s repair facility in Sunnyvale, California. It is PURCHASER’s
responsibility to return, at its expense, the allegedly defective Product to CYLINK. PURCHASER must
obtain a Return Materials Authorization (RMA) number and shipping instructions from CYLINK prior to
returning any Product under warranty. Transportation charges for the return of the Product to PURCHASER
shall be paid by CYLINK within the United States. For all other locations, the warranty excludes all costs of
shipping, customs clearance and other related charges. If CYLINK determines that the Product is not
defective within the terms of the warranty, PURCHASER shall pay CYLINK all costs of handling,
transportation and repairs at the then prevailing repair rates.

All the above warranties are contingent upon proper use of the Product. These warranties will not apply (i) if
adjustment, repair or parts replacement is required because of accident, unusual physical, electrical or
electromagnetic stress, negligence of PURCHASER, misuse, failure of electric power environmental
controls, transportation, not maintained in accordance with CYLINK specifications, or abuses other than
ordinary use (ii) if the Product has been modified by PURCHASER or has been repaired or altered outside
CYLINK’s factory, unless CYLINK specifically authorizes such repairs or alterations; (iii) where CYLINK
serial numbers, warranty data or quality assurance decals have been removed or altered.

CYLINK also reserves the right to make product improvements without incurring any obligation or liability to
make the same changes in Products previously manufactured or purchased. In no event shall CYLINK be
liable for any breach of warranty in an amount exceeding the net selling price of any defective Product. No
person, including any dealer, agent or representative of CYLINK is authorized to assume for CYLINK any
other liability on its behalf except as set forth herein. Nonpayment of any invoice rendered within the stated
payment terms automatically cancels any warranty or guarantee stated or implied. If any payment is due
CYLINK for services performed here under, it shall be subject to the same payment terms as the original
purchase.

CYLINK HEREBY DISCLAIMS ALL IMPLIED WARRANTIES ON PRODUCTS INCLUDING WITHOUT
LIMITATION, ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. The warranties expressly stated herein are the sole obligation or liability on the part of CYLINK
arising out of or in connection with the sale or performance of the products.

Products Manufactured by Others - For products not manufactured by CYLINK the original manufacturer’s
warranty shall be assigned to PURCHASER to the extent permitted and is in lieu of any other warranty,
express or implied. For warranty information on a specific product, a written request should be made to
CYLINK.

IN NO EVENT WILL CYLINK BE LIABLE TO PURCHASER FOR (i) REPROCUREMENT COSTS; (ii) SPECIAL,
INDIRECT OR CONSEQUENTIAL DAMAGES; (iii) ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
OF USE, DATA OR PROFITS ARISING OUT OF OR IN CONNECTION WITH THIS AGREEMENT, OR THE
USE OF PERFORMANCE OF CYLINK PRODUCTS, REGARDLESS OF WHETHER THE CAUSE OF ACTION
IS IN CONTRACT, TORT, INCLUDING NEGLIGENCE, OR ANY OTHER FORM.

No action, whether in contract or tort, including negligence, arising out of or in connection with this
Agreement, may be brought by either party more than eighteen (18) months after the cause of action has
accrued, except that an action for nonpayment may be brought within eighteen (18) months of the date of
last payment.

Table of Contents

Preface ......................................................................................................xiii

Who Should Read This Guide.............................................................. xiv

Prerequisite Knowledge ....................................................................... xiv

Guide Organization ............................................................................. xiv

Guide Conventions ................................................................................ xv

Typographic Conventions .............................................................. xvi

Keyboard Usage..............................................................................xvi

Notes, Cautions, and Warnings ..................................................... xvii

Customer Support ............................................................................... xvii

Reader Response ............................................................................... xviii

Chapter 1: Product Description................................................................... 1-1

Introduction to the AirLink Pro 64S....................................................... 1-2

Features and Capabilities ................................................................... 1-3

AirLink Pro 64S Antenna.................................................................1-4

Network Management Ports.............................................................1-4

Programmed Configuration Parameters .......................................... 1-5

Monitoring and Diagnostic Capabilities ......................................... 1-5

AirLink Pro/AirLink One Compatibility.........................................1-6

Chapter 2: Installation.............................................................................. 2-1

Overview............................................................................................ 2-2

Unpacking ........................................................................................... 2-2

Identifying Physical Features.............................................................. 2-3

Front Panel.................................................................................... 2-3

Rear Panel..................................................................................... 2-5

Site Preparation...................................................................................2-5

General Physical and Environmental Characteristics.......................2-5

Lightning Protection........................................................................2-6

Power Requirements....................................................................... 2-6

Setting Up the System.......................................................................... 2-6

Installing the Antenna ................................................................... 2-6

v

Installing the AirLink Pro 64S.........................................................2-8

Batch File Handling.....................................................................2-16

Burst Synchronization .................................................................. 2-17

Checking Operation ........................................................................... 2-28

Power-Up LED Sequence................................................................2-28

Initial Unit Configuration ............................................................ 2-29

Aligning the Antenna ................................................................... 2-31

Chapter 3: Configuration ........................................................................... 3-1

Overview ............................................................................................ 3-2

Using the ASCII Terminal Interface ..................................................... 3-2

Command Line Interface................................................................. 3-2

Command Keyword List ................................................................. 3-4

Administrative Parameters ................................................................. 3-7

Site Name ..................................................................................... 3-7

Date and Time ............................................................................... 3-8

Password ....................................................................................... 3-9

Setting Link Parameters ..................................................................... 3-10

Application ................................................................................. 3-12

Configuring the DTE Interface.............................................................3-15

DTE Mode.....................................................................................3-15

DTE Protection..............................................................................3-16

Data Rate..................................................................................... 3-17

Comm Mode..................................................................................3-17

RTS Source....................................................................................3-18

RTS Delay....................................................................................3-18

Configuring for Different Synchronous Data Clock Modes.....................3-18

AirLink One Clock Mode Emulation.....................................................3-21

DCE/ST........................................................................................3-21

DCE/TT........................................................................................3-21

DTE/TT........................................................................................3-22

HUB/ST.......................................................................................3-22

Independent Network Clocks...............................................................3-22

Independent Clocks in a Point-to-Point Link...................................3-23

Independent Clocks In a Hub..........................................................3-24

vi

Configuring the RF Link......................................................................3-24

PN................................................................................................3-25

Range...........................................................................................3-25

RF Plan.........................................................................................3-26

RF Power......................................................................................3-26

RF Sleep.......................................................................................3-26

Setting Alarm Control Parameters.......................................................3-26

Alarm Reporting .......................................................................... 3-26

Alarm Level ................................................................................. 3-27

Alarm Holdoff..............................................................................3-27

HUB_SYNC.................................................................................3-27

Threshold RSSI ............................................................................ 3-27

Threshold RSQ ............................................................................ 3-27

Threshold 1HR ES........................................................................ 3-27

Threshold 1HR UAS .................................................................... 3-28

Threshold 24 HR ES......................................................................3-28

Threshold 24 HR UAS...................................................................3-28

Other Command Keywords and Operands ........................................... 3-28

Setting Modem Parameters..................................................................3-29

Connection and Configuration........................................................3-30

Functions.......................................................................................3-33

RS-232 Modem Port Interface.........................................................3-36

User Interface Additions...............................................................3-38

Chapter 4: Operations and Maintenance ..................................................... 4-1

Overview ............................................................................................ 4-2

Acquiring Status Information ............................................................... 4-2

Viewing Status Information ........................................................... 4-2

Acquiring Alarm Information ............................................................... 4-7

The Event Queue ............................................................................ 4-8

Acquiring Performance Information ..................................................... 4-10

Viewing Performance Information ................................................. 4-10

Resetting Performance Counters ..................................................... 4-12

Diagnostic Tools..................................................................................4-13

vii

Appendix A: Messages .............................................................................. A-1

General Information ........................................................................... A-2

Major Alarm Messages ........................................................................ A-3

Minor Alarm Messages ........................................................................ A-3

Status Messages .................................................................................. A-4

Appendix B: Specifications ........................................................................ B-1

General Specifications ......................................................................... B-2

Operating and Environmental Specifications..................................B-2

Mechanical Specifications.............................................................B-3

Power............................................................................................ B-3

Interface Specifications ....................................................................... B-3

DTE Specifications......................................................................... B-3

Radio Interface ............................................................................. B-5

Signal-to-Pin Assignments ................................................................... B-8

Network Management.................................................................... B-8

AC Power.......................................................................................B-6

Antenna Connector..........................................................................B-9

Burst Sync Connector......................................................................B-10

DTE Connectors.............................................................................B-10

Crossover Data Cable Specifications............................................ B-13

Code of Federal Regulations................................................................B-14

viii

Appendix C: Worksheets ........................................................................... C-1

Appendix D: Commands.............................................................................D-1

Appendix E: Glossary..................................................................................E-1

Index ................................................................................................... Index-1

Figures

1-1 AirLink Pro 64S - Full View.............................................................1-2

1-2 Point-to-Point Application Showing Master/Slave Configuration....1-4

1-3 Point-to-Multipoint Application.....................................................1-4

2-1 AirLink Pro 64S Front Panel.............................................................2-3

2-2 AirLink Pro 64S Rear Panel.............................................................2-5

2-3 Typical Antenna Mounts..................................................................2-7

2-4 Terminal Connection........................................................................2-9

2-5 Terminal Emulation......................................................................2-11

2-6 Terminal Preferences.....................................................................2-12

2-7 Communications............................................................................2-13

2-8 Ports.............................................................................................2-14

2-9 Settings for Com 1..........................................................................2-14

2-10 Advanced Settings for Com 1..........................................................2-15

2-11 Modem Connection to the AirLink Pro 64S......................................2-16

2-12 Burst Synchronization Structure.....................................................2-18

2-13 TDD Burst Structure......................................................................2-19

2-14 Burst Sync Wiring.........................................................................2-20

2-15 Burst Sync Backup.........................................................................2-21

2-16 Burst Sync Compatibility .............................................................2-25

2-17 Burst Sync Compatibility..............................................................2-27

3-1 Point-to-Point Application............................................................3-11

3-2 Point-to-Multipoint Application...................................................3-12

3-3 Hub Application...........................................................................3-13

3-4 AirLink Pro 64S Two Part Repeater Link........................................3-14

3-5 Independent Network Clocks.........................................................3-23

4-1 AirLink Pro 64S Loopback Tests.....................................................4-14

4-2 AirLink Pro 64S in Test Loopback Local..........................................4-15

4-3 AirLink Pro 64S in Remote Test Loopback Local..............................4-16

4-4 AirLink Pro 64S in Test Loopback Remote.......................................4-17

4-5 AirLink Pro 64S in Remote Test Loopback Remote...........................4-18

4-6 Asserted RTS in Multipoint Configuration......................................4-20

B-1 DB9 Female Network Management Connector.................................B-9

B-2 DB25 Female DTE Connector..........................................................B-10

ix

Tables

2-1 AirLink Pro 64S Front Panel Indicators.............................................2-4

2-2 AirLink Pro 64S Rear Panel Connectors.............................................2-5

2-3 Voltage Requirements.....................................................................2-6

2-4 Normal Burst Sync Activity..........................................................2-23

2-5 Bus A Activity Lost.......................................................................2-23

2-6 Bus B Activity Lost.......................................................................2-24

2-7 Bus A and Bus B Activity Lost........................................................2-24

2-8 LED Indicators..............................................................................2-28

2-9 Error Codes...................................................................................2-29

2-10 Signal Quality..............................................................................2-32

3-1 Voltage Requirements DTE Protect Configuration...........................3-17

3-2 Applications with Clock Modes.....................................................3-19

3-3 Terminal Commands of the Modem (Port) Interface........................3-32

3-4 Modem Response Definitions.........................................................3-37

3-5 Modem Commands.........................................................................3-38

3-6 Dial Out Parameters.....................................................................3-39

4-1 Receive Signal Quality...................................................................4-6

A-1 Major Alarm Messages....................................................................A-3

A-2 Minor Alarm Messages...................................................................A-3

A-3 Status Messages.............................................................................A-4

B-1 Operating and Environmental Specifications..................................B-2

B-2 Mechanical Specifications.............................................................B-3

B-3 Power Specifications......................................................................B-3

B-4 DTE Specifications.........................................................................B-4

B-5 General Specifications...................................................................B-5

B-6 Transmitter....................................................................................B-6

B-7a Channel Plan 1...............................................................................B-6

B-7b Channel Plan 2...............................................................................B-7

B-8 Receiver........................................................................................B-7

B-9 Data Interface Standards...............................................................B-8

B-10 Terminal Connection.......................................................................B-9

B-11 RS-232 Pin Assignments.................................................................B-11

B-12 EIA-530 and V.35 Pin Assignments.................................................B-12

x

B-13 EIA 530 25-Pin Male Connectors.....................................................B-13

B-14 RS-232 25-Pin Male Connectors......................................................B-13

B-15 Point-to-Point Maximum Delay.....................................................B-14

xi

P

REFACE

REFACE

P

About This Guide

About This Guide

The AirLink Pro 64S Installer’s Guide covers the information needed
to unpack, install, configure, and operate the AirLink Pro 64S system.
Begin by reading this preface for more information about how this
guide supports your use of the AirLink Pro 64S system.

Inside this chapter:

Who Should Read This Manual...............................................xiv

Prerequisite Knowledge .......................................................xiv

Guide Organization..................................................................xiv

Conventions Guide....................................................................xv

Customer Support ............................................................... xvii

Reader Response ................................................................. xviii

Rev. B - 2/97 xiii

AirLink Pro 64S Installer’s Guide
About This Guide

Who Should Read This Manual

This is an installation guide for persons who must perform or coordinate the
tasks associated with unpacking and installing the AirLink Pro 64S.

Prerequisite Knowledge

Throughout this guide are explanations and procedures that presume working
familiarity with basic telephone trunking and transmission concepts and
practices, as well as basic digital data communications concepts and practices.
If you are not familiar with the concepts and practices involved in these
disciplines, we recommend that you familiarize yourself with them before
proceeding.

Also, this guide does not attempt to provide any detailed system planning or
installation information on radio frequency (RF) antenna assemblies or Path
analysis. For details about these topics, please refer to the AirLink Site
Planning Guide .

Guide Organization

Each of the chapters and appendices in this guide begins by introducing the
contents of that chapter or appendix. Before beginning the installation process,
read the introductions to all of the guide portions so that you have a sense of
what each portion provides.

When you come to a procedure, skim through the entire procedure before you
begin performing the step-by-step instructions. By doing this, you will be
prepared with the appropriate information, equipment, or tools.

The information in this guide is organized according to the sequence of tasks
necessary to plan for unpacking, installing, and configuring, as well as operating
and maintaining the AirLink Pro 64S system.

xiv Rev. B - 2/97

The guide is divided into the following sections:

Guide Section Description

AirLink Pro 64S Installer’s Guide

About This Manual

Chapter 1:
Product Description

Chapter 2:
Installation

Chapter 3:
Configuration

Chapter 4:
Operations and
Maintenance

Appendix A:
Messages

Appendix B:
Specifications

Appendix C:
Worksheets

Appendix D
Commands

Appendix E:
Glossary

Index Provides a quick reference to assist you in locating

Describes the features and capabilities of the AirLink
Pro 64S system.

Outlines the procedures for unpacking and installing
the AirLink Pro 64S system hardware, connecting the
antenna, and performing initial operation checks.

Provides instructions for configuring the AirLink Pro
64S.

Contains information on the operation and
maintenance of the AirLink Pro 64S system.

Lists the system alarm, status, and error messages.

Contains a quick reference to the AirLink Pro 64S
system specifications.

Worksheets are provided to help the user write down
configuratin parameters for reference.

Contains list of the Commands needed to configure
and operate the AirLink Pro 64S.

Provides definitions for the terms commonly used
throughout this guide.

important topics in the guide.

Guide Conventions

The procedures and instructions in this guide use the following conventions:
❚ Typography that highlights information within text, including screen

displays, figures, and tables.

❚ Keyboard usage conventions.
❚ Notes that add information, point to other important considerations, or

alert you to possible risks to yourself, your equipment, or your data.

Rev. B - 2/97 xv

AirLink Pro 64S Installer’s Guide
About This Guide

Typographic Conventions

❚ Terminal displays are shown as text in the Courier font ( this is just an

example, your configuration will probably be different):

AIRLINK PRO > Get Configuration
Site Name:
Application: 2. Master Unit in a Point-to-Point Link
PN Code: 1
RF Channel Plan: 20 channels
RF Channel: 1
RF Frequency: 2404.468
RF Power: 0 dBm
RF sleep: NO
Comm Mode: Synchronous
Data Rate: 4.8 Kbps
Burst Timing: Receive sync
Tx Clock Source: Internal
Tx VCXO Ref Free Run
Hub Sync: Single
RTS Source: Internal
RTS delay: 0 msec
DTE mode: RS-232
DTE Protect: Disabled
Alarm Reporting: Request
Alarm Level: Status
Date/Time: 01 Sept 1996 10:35:00

❚ Bold Courier font indicates a command keyword or operand that you

are expected to type exactly as shown.

❚ Italic Courier font indicates a command operand that you must

replace with a selected value when you type the command.

❚ Named keys in text are shown enclosed in angle brackets. The notation

<Return> is used to indicate either the Return key or the Enter key.

Keyboard Usage

❚ All command examples shown in text are executed by typing the command

and then pressing <Return>.

❚ Two or more keys that must be pressed simultaneously are shown in text

linked with a plus (+) sign: <Ctrl>+C.

xvi Rev. B - 2/97

Notes, Cautions, and Warnings

NOTE The standard text note highlights important or additional

CAUTION These notes warn you of situations that could result in damage

WARNING These notes warn you of situations that could endanger your

Customer Support

AirLink Pro 64S Installer’s Guide

About This Manual

information for you to consider.

to your equipment or loss of data if you do not heed the
instructions.

personal health if you do not heed the instructions.

If after reading this guide you encounter any trouble installing or using the
AirLink Pro 64S, please contact your local distributor. Cylink
distributors are authorized local service providers and are responsible for
immediate support. If problems are not resolved, you can call Cylink’s
Customer Service for assistance. A 24 hour answering service is maintained for
after hours emergency telephone technical support. Emergency requests for
phone support are dispatched by the answering sevice. Cylink Technical
support responses to emergency calls consist of over the phone troubleshooting
and assistance in obtaining distribution support. The telephone numbers are:

Domestic (USA)

1-800-545-6608 Sunnyvale, CA

International

1-408-735-5822 Sunnyvale, CA

[phone] Singapore

[phone] United Kingdom

[phone] India

[phone] Pakistan

Rev. B - 2/97 xvii

AirLink Pro 64S Installer’s Guide
About This Guide

Domestic and International Customer Service Fax

1-408-735-6641 Sunnyvale, CA
[phone] Singapore
[phone] United Kingdom
[phone] India
[phone] Pakistan

You can also contact Cylink’s Tech Support through the Internet at the
following address:

If you need to return equipment, call Customer Service to obtain a Return
Material Authorization (RMA) number prior to returning the equipment. The
RMA number must be placed on the outside of the shipping carton. Please be
prepared to provide the unit serial number, software version, and a detailed
description of the problem. Return all equipment to:

[e-mail]

Cylink Corporation

910 Hermosa Court

Sunnyvale, CA 94086

Attn: Repair and Return Department

Reader Response

Cylink’s Technical Publications Department wants its documents to meet your
requirements. To this end, your ideas about the documentation are valuable.
After you have had a chance to read and use the guide, we encourage you to
submit your comments to

You may also submit your comments through the Internet at the following
address:

Cylink may use or distribute any of the information you supply in any way it
believes appropriate without incurring any obligations whatsoever.

RMA No: xxxxxxxxxx

Manager, Technical Publications

Cylink Corporation

910 Hermosa Court

Sunnyvale, CA 94086

[e-mail]

xviii Rev. B - 2/97

C

HAPTER

HAPTER

C

Product Description

Product Description

This chapter introduces the AirLink Pro 64S and provides an overview
of the features and capabilities.

1

1

Inside this chapter:

Introduction to the AirLink Pro 64S................................1-2

Features and Capabilities ...................................................1-3

Rev. B - 2/97 1-1

AirLink Pro 64S Installer’s Guide
Product Description

Introduction to the AirLink Pro 64S

The AirLink Pro S-Band family of digital microwave radios are spread­spectrum transceivers that operate in the 2400 - 2483.5 MHz Industrial
Scientific Medical (IS) band. The AirLink Pro 64S uses a Spread Spectrum
modulation technique to create high-quality, point-to-point and point-to­multipoint radio links between itself and other AirLink Pro 64S modems
located at distant sites.

The AirLink Pro 64S is a compact table top unit (see Figure 1-1), which can also
be rack mounted.

1-2

Figure 1-1

AirLink Pro 64S- Full View

Rev. B - 2/97

Features and Capabilities

The AirLink Pro 64S supports a range of sophisticated control capabilities and
options, including:

❚ Flexible, interactive user interface through an ASCII terminal
❚ Easily modified configuration parameters
❚ Software configuration
❚ Built in testing
❚ Operating range up to 30 miles (50 km) between units (subject to local radio

regulations)

❚ Local and remote monitoring, diagnostic, and maintenance capabilities
❚ Every radio-frequency (RFD) burst verified by an error-checking algorithm

AirLink Pro 64S Installer’s Guide

Product Description

❚ Modem dial-in/dial-out control at the network management ports
❚ RS-232, V.35, and EIA-530 interfaces supported with one unit
❚ Burst sync compatibility with AirLink One S-Band modems
❚ Redundant burst sync
❚ Optional Rugged Enclosure

In a typical redundant installation, an AirLink Pro 64S operates in a point-to­point or point-to-multipoint environment. In a point-to-point setup, there is one
master and one slave modem linked by radio. The master modem is the burst­timing synchronizer of the radio link. The master sends a timing code to the
slave with transmission bursts. Once the slave receives a complete burst, it
turns on its transmitter and transmits its burst. This scheme provides a full­duplex, radio-to-radio communication that follows a Ping-Pong analogy.

Rev. B - 2/97

1-3

AirLink Pro 64S Installer’s Guide
Product Description

Figure 1-2

Point-to-Point Application Showing Master/Slave Configuration

In a point-to-multipoint setup, the Pro 64S modems provide a radio link
between a host computer and two or more remote terminals. The terminals are
controlled by the host with a poll-select communication protocol that is
transparent to the AirLink modems. In this case, polling is the process of
addressing the remote terminals by the host computer’s software. The master
modem is the burst-timing synchronizer of the radio link. The master sends a
timing code to the slave with transmission bursts. The slave synchronizes to
this timing reference and sends transmission bursts back. This scheme provides
a full-duplex, point-to-point session within a point-to-multipoint application.
As shown in Figure 1-3, the host computer can poll one terminal via the
AirLinks while transferring data to another.

1-4

Figure 1-3

Point-to-Multipoint Application

Rev. B - 2/97

AirLink Pro 64S Antenna

The antenna choices can include an 8 dBi Omnidirectional antenna or a 24 dBi
semi-parabolic Directional antenna. Refer to the AirLink Site Planning Guide
for different antenna options.

Network Management Ports

The AirLink Pro 64S ASCII terminal user interface is an RS-232 interface that
allows a terminal device or personal computer to control and monitor AirLink
Pro 64S operation at either end of the link. The connection to the RS-232
interface can be either a direct connection (device to port), or an indirect
connection (device to modem to port).

Programmed Configuration Parameters

The AirLink Pro 64S operation is governed by user-selectable configuration and
control parameters that reside in the non-volatile memory of the unit. These
parameters are displayed and controlled through a terminal device that can
access both the local and remote unit. When power is lost and then restored,
the system reconfigures itself from its protected configuration database.

AirLink Pro 64S Installer’s Guide

Product Description

Refer to Chapter 3, Configuration, for more information on changing
configuration parameter settings.

A long-life lithium battery protects all system configuration settings during
power losses. The battery is integrated into the non-volatile memory /real­time clock circuitry on the digital module in the AirLink Pro 64S. It has a 10­year storage life (in the absence of Power to the AirLink Pro 64S). However, a
battery about to expire will result in loss of all configured parameters and
revert back to the default configurations.

WARNING The component containing the lithium battery is NOT a customer-replaceable part. Do not

expose the lithium battery cell by opening the component. Do not attempt to recharge the
battery. Do not dispose of the component by fire. The lithium battery could explode if
mistreated.

Monitoring and Diagnostic Capabilities

The AirLink Pro 64S system constantly monitors the quality of the wireless
link, checking the receive RFD signal level, bit errors, and many other critical
factors. This information goes into an internal database of status and
performance information that the AirLink Pro 64S uses, in part, to derive the

Rev. B - 2/97

1-5

AirLink Pro 64S Installer’s Guide
Product Description

events that are stored in the event queue. As alarm events occur, they are
signaled through indicators on the front panel of the modem and are entered in
the event queue.

Using the terminal user interface, you can query either the local unit or the
remote unit for status, performance and alarm information, and make
configuration changes for either the local or remote end of the link.

The AirLink Pro 64S also provides built-in bit error testing and loopback tests
that may be used to isolate problems. You can initiate tests in the local unit or
in the remote unit through the terminal user interface.

Refer to Chapter 4, Operations and Maintenance, for information on monitoring
operation and using diagnostic tools and procedures.

AirLink Pro/AirLink One Compatibility

AirLink Pro 64S modems are designed to operate in the same environments as
AirLink One modems. They are compatible in the sense that adjacent links
emanating from a Hub Site can be implemented using different generations of
AirLink modems. However, due to different burst structures in the TDD over­the-air protocol, an AirLink Pro 64S modem cannot communicate in the same
link with an AirLink One 64S modem.

There are compatibility issues to consider when AirLink Pro 64S and AirLink
One modems are configured together to avoid mutual interference.

❚ Burst Synchronization
❚ Radio Frequency Environment

The considerations necessary for Burst Synchronization are discussed in
Chapter 2, Installation and System Administration in the Burst
Synchronization Section.

The AirLink Pro 64S has two commands, RF Plan and Range, that must be
configured for AirLink One compatibility. These commands are discussed in
Chapter 3, Configuration in the Configuring the RF Link section.

1-6

Rev. B - 2/97

C

HAPTER

HAPTER

C

Installation

Installation

This chapter outlines general planning and the procedures for
unpacking, and installing the AirLink Pro 64S hardware, connecting
cables, and performing power-up checks. This chapter also contains
important instructions regarding safety in setting up the AirLink Pro
64S system.

2

2

Inside this chapter:

Overview .................................................................................2-2

Unpacking ...............................................................................2-2

Identifying Physical Features ............................................2-3

Site Preparation...................................................................2-5

Setting Up the System .......................................................2-6

Checking Operation ...........................................................2-28

Rev. B - 2/97 2-1

AirLink Pro 64S Installer’s Guide
Installation and System Administration

Overview

This chapter touches briefly on the general technical requirements of antenna
and RF transmission line installation, but mainly focuses on the task of
installing the AirLink Pro 64S system at each end of the communication link,
integrating all of the equipment, and performing a system check and alignment
before turning the system over to normal customer traffic.

A typical AirLink Pro 64S system is made up of the following components:

❚ AirLink Pro 64S
❚ antenna
❚ optional system components

Depending upon your system plan, you will be installing all or some of these
AirLink Pro 64S system components at each end of a link. The following sections
describe both required and optional system components.

Unpacking

The first step in the installation process is to take all of the materials out of
the shipping carton(s) and make sure that you have everything shown on the
packing list(s). If something is missing, contact your local distributor. Inspect
the unit for any possible damage. If you discover shipping damage, repack the
unit and notify the shipping representative.

NOTE Save the shipping cartons and packing materials. You will need the carton and materials if

you ever need to ship your equipment elsewhere.

After unpacking and confirming the contents of the shipment, place the AirLink
Pro 64S system components on a flat surface that allows enough space to work
around them.

2-2

Rev. B - 2/97

Identifying Physical Features

Figure 2-1

AirLink Pro 64S Front Panel

AirLink Pro 64S Installer’s Guide

Installation and System Administration

Front Panel

The AirLink Pro 64S front panel (Figure 2-1) consists of a metal panel that
contains two clusters of indicators identified with graphical icons and labels.
The two clusters have four indicators each. Table 2-1 lists the front panel LEDs
and describes their functions.

Rev. B - 2/97

2-3

AirLink Pro 64S Installer’s Guide
Installation and System Administration

Table 2-1

AirLink Pro 64S Front Panel Indicators

Name Color Function

DCD Green When ON, indicates that a good data communications

RTS Green Indicates that RTS is asserted internally or externally.
TD Green Indicates that the unit is transmitting data (in the form

RD Green Indicates that the unit is receiving data (in the form of

Major Alarm Red When ON, indicates that one or more of the following

Minor Alarm Yellow When ON, indicates that one or more of the following

Burst Sync Green When ON, indicates that the unit is the burst sync

Power Green Indicates that primary power is supplied to the

channel has been established

of ones) to the far-end unit.

ones) from the far-end unit.

events has occurred:

-Transmit Power Below Threshold

- DTE Interface Voltage Error

- Radio Sync Loss

- System Reset

- No Burst Sync Source

events has occurred:

- RSSI Below Threshold

- VSWR Above Threshold

- RSQ Below Threshold

- Primary Burst Sync Source Loss

- Backup Burst Sync Source Loss

- 1-HR Errored Seconds Threshold Exceeded

- 1-HR Unavailable Seconds Threshold Exceeded

- 24-HR Errored Seconds Threshold Exceeded

- 24-HR Unavailable Seconds Threshold Exceeded

source.

equipment.

2-4

Rear Panel

The AirLink Pro 64S rear panel (Figure 2-2) consists of a metal panel containing
two external equipment connectors, one terminal block, an AC power connector
and an N-type antenna connector. Table 2-1 lists the rear-panel connectors and
describes their functions.

Rev. B - 2/97

Figure 2-2

AirLink Pro 64S Rear Panel

Table 2-2

AirLink Pro 64S Rear Panel Connectors

Connector Type Function

AirLink Pro 64S Installer’s Guide

Installation and System Administration

Power 5-pin DIN female Power connection.
Antenna N-type female Antenna connection
Network Management

Ports
DTE DB 25 female for

Burst Sync 6-Pin Captive Wire

Site Preparation

Because of the special planning requirements associated with installing a
microwave system, you should review some of the general guidelines regarding
installation preparation to ensure that the site you are considering is suitable
to the purpose. For details on Site Planning, refer to the AirLink Site Planning
Guide.

General Physical and Environmental Characteristics

DB 9 male
connectors

RS-232 interface
DB 25 female for

V.35 and EIA-530

Terminal

For connecting a modem or terminal to the
AirLink Pro 64S.

DTE connection
(Note: These are DCE emulating ports.)

Burst Sync Connection

Rev. B - 2/97

The AirLink Pro 64S radio unit measures 8.3 inches wide (21.083cm), 2.6 inches
high (6.60cm), and 10 inches deep (25.4cm), and weighs approximately 5 pounds
(2.3 kilograms).

2-5

AirLink Pro 64S Installer’s Guide
Installation and System Administration

Lightning Protection

If the AirLink Pro 64S system is being installed in an area where lightning is a
problem, primary protection, such as gas tubes or spark gaps, is required (Cylink
distributors can provide these). For more details on lightning protection refer to
the AirLink Site Planning Guide.

Power Requirements

The AirLink Pro 64S Power Specifications are listed in the table below.

Table 2-3

Voltage Requirements

Parameter Specifications

External AC power Supply
Input
Output

100-250 VAC @ 50/60 Hz
+5, +/- 12 VDC, cable terminated with 5-pin

male DIN Connector

Maximum Power consumption
(Power Supply plus AirLink)

NOTE Power supplies are available as options from Cylink and distributors.

AC Power Supply - 23W
DC Power Supply - 21W

Setting Up the System

The following sections outline the procedures for installing, cabling, and
bringing up an AirLink Pro 64S system. Some of the steps require special
knowledge, experience, and tools; some of the installation steps may require
help from another person.

Installing the Antenna

Antennas are generally installed by persons who have the knowledge,
experience, and tools to handle the somewhat specialized task. The following
sections are intended as a general summary of the process, and not as a complete
description. A successful antenna installation effort is the culmination of site
and route preparation and path analysis. For a detailed description of Path
Analysis and antenna options refer to the AirLink Site Planning Guide .

2-6

Rev. B - 2/97

AirLink Pro 64S Installer’s Guide

Installation and System Administration

Typical Antenna Mounts

An antenna for a microwave system such as the AirLink Pro 64S is typically
equipped with mounting hardware that allows the antenna to be attached to a
length of pipe (or stub mast) that can then be mounted in several ways,
depending upon user requirements, site conditions, and local building codes (see
Figure 2-3).

Rev. B - 2/97

Figure 2-3

Typical Antenna Mounts

System Grounding

Direct grounding of the antenna, mast, and tower provides some protection
against lightning strikes and static buildup. A direct electrical connection
should be made to a suitable grounding rod at the base of the tower or mast using

2-7