Cambium Networks PTP 650 Series User manual

Cambium
PTP 650 Series
User Guide
System Release 650-01-01

Accuracy
While reasonable efforts have been made to assure the accuracy of this document, Cambium Networks
assumes no liability resulting from any inaccuracies or omissions in this document, or from use of the
information obtained herein. Cambium reserves the right to make changes to any products described
herein to improve reliability, function, or design, and reserves the right to revise this document and to
make changes from time to time in content hereof with no obligation to notify any person of revisions
or changes. Cambium does not assume any liability arising out of the application or use of any
product, software, or circuit described herein; neither does it convey license under its patent rights or
the rights of others. It is possible that this publication may contain references to, or information about
Cambium products (machines and programs), programming, or services that are not announced in
your country. Such references or information must not be construed to mean that Cambium intends to
announce such Cambium products, programming, or services in your country.
Copyrights
This document, Cambium products, and 3rd Party software products described in this document may
include or describe copyrighted Cambium and other 3rd Party supplied computer programs stored in
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the 3rd Party software supplied material contained in the Cambium products described in this
document may not be copied, reproduced, reverse engineered, distributed, merged or modified in any
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license under the copyrights, patents or patent applications of Cambium or other 3rd Party supplied
software, except for the normal non-exclusive, royalty free license to use that arises by operation of
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Restrictions
Software and documentation are copyrighted materials. Making unauthorized copies is prohibited by
law. No part of the software or documentation may be reproduced, transmitted, transcribed, stored in a
retrieval system, or translated into any language or computer language, in any form or by any means,
without prior written permission of Cambium.
License Agreements
The software described in this document is the property of Cambium and its licensors. It is furnished
by express license agreement only and may be used only in accordance with the terms of such an
agreement.
High Risk Materials
Cambium and its supplier(s) specifically disclaim any express or implied warranty of fitness for any
high risk activities or uses of its products including, but not limited to, the operation of nuclear
facilities, aircraft navigation or aircraft communication systems, air traffic control, life support, or
weapons systems (“High Risk Use”). Any High Risk is unauthorized, is made at your own risk and you
shall be responsible for any and all losses, damage or claims arising out of any High Risk Use.
© 2013 Cambium Networks Limited. All Rights Reserved.
phn-3341_003v000 (October 2013)

Contents
About This User Guide .......................................................................................................................... 1
Contacting Cambium Networks.................................................................................................... 1
Purpose ........................................................................................................................................... 2
Cross references............................................................................................................................. 2
Feedback ......................................................................................................................................... 2
Important regulatory information........................................................................................................ 3
Radar avoidance............................................................................................................................. 3
USA and Canada specific information ......................................................................................... 3
Specific expertise and training required for professional installers ......................................... 4
Avoidance of weather radars ........................................................................................................ 4
External antennas........................................................................................................................... 4
Ethernet networking skills ............................................................................................................. 4
Lightning protection....................................................................................................................... 5
Training ........................................................................................................................................... 5
Problems and warranty ........................................................................................................................ 6
Reporting problems ....................................................................................................................... 6
Repair and service.......................................................................................................................... 6
Hardware warranty ........................................................................................................................ 6
Security advice ...................................................................................................................................... 7
Warnings, cautions, and notes ............................................................................................................ 8
Warnings ......................................................................................................................................... 8
Cautions .......................................................................................................................................... 8
Notes ............................................................................................................................................... 8
Caring for the environment.................................................................................................................. 9
In EU countries ............................................................................................................................... 9
In non-EU countries ....................................................................................................................... 9
Chapter 1:
Product description.......................................................................................................1-1
Overview of the PTP 650 ...................................................................................................................1-2
Purpose ........................................................................................................................................1-2
Key features .................................................................................................................................1-2
Frequency bands .........................................................................................................................1-3
Page i

Contents
Typical bridge deployment ........................................................................................................1-4
Hardware overview .....................................................................................................................1-5
Wireless operation .............................................................................................................................1-6
Time division duplexing .............................................................................................................1-6
Link mode optimization ..............................................................................................................1-8
Link symmetry .............................................................................................................................1-8
OFDM and channel bandwidth ..................................................................................................1-9
Spectrum management ..............................................................................................................1-9
Adaptive modulation ................................................................................................................1-10
MIMO..........................................................................................................................................1-11
Dynamic spectrum optimization..............................................................................................1-12
Radar avoidance........................................................................................................................1-12
Encryption..................................................................................................................................1-13
License keys and regulatory bands .........................................................................................1-13
PTP networks .............................................................................................................................1-14
Ethernet bridging .............................................................................................................................1-15
Ethernet ports ............................................................................................................................1-15
Customer data network ............................................................................................................1-16
Network management ..............................................................................................................1-18
Ethernet loopback mode...........................................................................................................1-21
Protocol model ..........................................................................................................................1-21
System management.......................................................................................................................1-23
Management agent ...................................................................................................................1-23
IPv6 .............................................................................................................................................1-24
Web server .................................................................................................................................1-25
RADIUS authentication.............................................................................................................1-27
SNMP..........................................................................................................................................1-28
Simple Network Time Protocol (SNTP)...................................................................................1-28
SNMPv3 security .......................................................................................................................1-29
System logging (syslog)...........................................................................................................1-32
AES license ................................................................................................................................1-32
Critical security parameters .....................................................................................................1-33
Login information......................................................................................................................1-33
Capability upgrades ..................................................................................................................1-33
Full capability trial period.........................................................................................................1-34
Software upgrade......................................................................................................................1-34
Page ii

Contents
Recovery mode..........................................................................................................................1-35
Chapter 2:
System hardware..........................................................................................................2-1
Outdoor unit (ODU) ...........................................................................................................................2-2
ODU description ..........................................................................................................................2-2
ODU part numbers ......................................................................................................................2-3
ODU mounting brackets .............................................................................................................2-5
ODU interfaces ............................................................................................................................2-6
ODU specifications......................................................................................................................2-7
Power supply units (PSU)..................................................................................................................2-8
PSU description...........................................................................................................................2-8
PSU part numbers.......................................................................................................................2-9
AC Power Injector interfaces......................................................................................................2-9
AC+DC Enhanced Power Injector interfaces...........................................................................2-10
PSU specifications.....................................................................................................................2-11
Antennas and antenna cabling .......................................................................................................2-13
Antenna requirements..............................................................................................................2-13
RF cable and connectors...........................................................................................................2-13
Antenna accessories .................................................................................................................2-14
FCC and IC approved antennas................................................................................................2-14
Ethernet cabling ...............................................................................................................................2-20
Ethernet standards and cable lengths.....................................................................................2-20
Outdoor copper Cat5e Ethernet cable .....................................................................................2-21
Cable grounding kit...................................................................................................................2-22
Lightning protection unit (LPU) and grounding kit ................................................................2-23
RJ45 connectors and spare glands..........................................................................................2-24
Cable hoisting grip ....................................................................................................................2-25
Drop cable tester .......................................................................................................................2-26
Indoor Cat5e cable ....................................................................................................................2-26
SFP module kits.........................................................................................................................2-27
Optical cable and connectors...................................................................................................2-29
Chapter 3:
System planning...........................................................................................................3-1
Typical deployment ...........................................................................................................................3-2
ODU with POE interface to PSU.................................................................................................3-2
SFP and Aux Ethernet interfaces ...............................................................................................3-5
Site planning.......................................................................................................................................3-8
Grounding and lightning protection..........................................................................................3-8
Page iii

Contents
Lightning protection zones.........................................................................................................3-8
Site grounding system..............................................................................................................3-10
ODU and external antenna location ........................................................................................3-10
ODU wind loading.....................................................................................................................3-11
PSU DC power supply...............................................................................................................3-12
PSU location ..............................................................................................................................3-12
Drop cable grounding points ...................................................................................................3-13
LPU location...............................................................................................................................3-13
Multiple LPUs ............................................................................................................................3-14
Radio spectrum planning ................................................................................................................3-16
General wireless specifications ...............................................................................................3-16
Regulatory limits .......................................................................................................................3-17
Conforming to the limits...........................................................................................................3-17
Available spectrum ...................................................................................................................3-18
Channel bandwidth ...................................................................................................................3-18
Frequency selection ..................................................................................................................3-19
Avoidance of weather radars (USA only) ...............................................................................3-20
Edge channel power reduction ................................................................................................3-20
Link planning ....................................................................................................................................3-21
PTP LINKPlanner .......................................................................................................................3-21
Range and obstacles .................................................................................................................3-21
Path loss.....................................................................................................................................3-22
Adaptive modulation ................................................................................................................3-22
Calculating data rate capacity ..................................................................................................3-23
Planning for connectorized units....................................................................................................3-25
When to install connectorized units ........................................................................................3-25
Choosing external antennas ....................................................................................................3-25
Calculating RF cable length (5.8 GHz FCC only) .....................................................................3-26
Data network planning ....................................................................................................................3-27
Ethernet interfaces ....................................................................................................................3-27
Layer 2 control protocols..........................................................................................................3-27
Ethernet port allocation ............................................................................................................3-28
VLAN membership....................................................................................................................3-28
Priority for management traffic ...............................................................................................3-28
IP interface .................................................................................................................................3-29
Quality of service for bridged Ethernet traffic ........................................................................3-29
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Contents
“Daisy-chaining” PTP 650 links ...............................................................................................3-30
Green Ethernet switches...........................................................................................................3-30
Network management planning.....................................................................................................3-31
Planning for SNMP operation ..................................................................................................3-31
Supported diagnostic alarms...................................................................................................3-32
Enabling SNMP .........................................................................................................................3-32
Security planning .............................................................................................................................3-33
Planning for SNTP operation ...................................................................................................3-33
Planning for HTTPS/TLS operation..........................................................................................3-33
Planning for SNMPv3 operation ..............................................................................................3-35
Planning for RADIUS operation ...............................................................................................3-39
System threshold, output power and link loss..............................................................................3-41
Data throughput capacity tables.....................................................................................................3-47
Chapter 4:
Legal and regulatory information ................................................................................4-1
Cambium Networks end user license agreement...........................................................................4-2
Acceptance of this agreement ...................................................................................................4-2
Definitions....................................................................................................................................4-2
Grant of license ...........................................................................................................................4-2
Conditions of use ........................................................................................................................4-3
Title and restrictions ...................................................................................................................4-4
Confidentiality .............................................................................................................................4-4
Right to use Cambium’s name...................................................................................................4-5
Transfer ........................................................................................................................................4-5
Updates ........................................................................................................................................4-5
Maintenance ................................................................................................................................4-5
Disclaimer ....................................................................................................................................4-6
Limitation of liability ...................................................................................................................4-6
U.S. government .........................................................................................................................4-6
Term of license ............................................................................................................................4-7
Governing law .............................................................................................................................4-7
Assignment..................................................................................................................................4-7
Survival of provisions.................................................................................................................4-7
Entire agreement.........................................................................................................................4-7
Third party software....................................................................................................................4-7
Compliance with safety standards .................................................................................................4-23
Electrical safety compliance.....................................................................................................4-23
Page v

Contents
Electromagnetic compatibility (EMC) compliance .................................................................4-23
Human exposure to radio frequency energy..........................................................................4-24
Compliance with radio regulations ................................................................................................4-27
Type approvals ..........................................................................................................................4-27
FCC/IC compliance ....................................................................................................................4-29
European Union compliance....................................................................................................4-31
Chapter 5:
Installation ....................................................................................................................5-1
Safety ..................................................................................................................................................5-2
Power lines ..................................................................................................................................5-2
Working at heights ......................................................................................................................5-2
PSU ...............................................................................................................................................5-2
Grounding and protective earth ................................................................................................5-2
DC supply.....................................................................................................................................5-3
Powering down before servicing...............................................................................................5-3
Primary disconnect device .........................................................................................................5-3
External cables ............................................................................................................................5-3
Drop cable tester .........................................................................................................................5-3
RF exposure near the antenna ...................................................................................................5-3
Minimum separation distances .................................................................................................5-4
Grounding and lightning protection requirements..................................................................5-4
Grounding cable installation methods......................................................................................5-4
Siting ODUs and antennas .........................................................................................................5-4
Installing the ODU and top LPU........................................................................................................5-5
Decide how to mount the ODU and top LPU............................................................................5-5
Prepare ODU for mounting ........................................................................................................5-6
Integrated ODU............................................................................................................................5-7
Connectorized ODU.....................................................................................................................5-9
Ground the ODU and top LPU .................................................................................................5-10
Install external antennas for a connectorized ODU ...............................................................5-11
Installing the copper Cat5e Ethernet interface ..............................................................................5-13
Install the ODU to top LPU drop cable ....................................................................................5-13
Install the main drop cable.......................................................................................................5-15
Install the bottom LPU to PSU drop cable ..............................................................................5-18
Test resistance in the drop cable.............................................................................................5-20
Installing the PSU.............................................................................................................................5-21
Installing the AC Power Injector ..............................................................................................5-21
Page vi

Contents
Installing the AC+DC Enhanced Power Injector .....................................................................5-22
Installing an SFP Ethernet interface ...............................................................................................5-23
Fitting the long cable gland......................................................................................................5-25
Inserting the SFP module .........................................................................................................5-26
Connecting the cable ................................................................................................................5-29
Fitting the gland ........................................................................................................................5-30
Removing the cable and SFP module .....................................................................................5-31
Installing an Aux Ethernet interface ...............................................................................................5-32
Supplemental installation information ..........................................................................................5-33
Stripping drop cable .................................................................................................................5-33
Creating a drop cable grounding point ...................................................................................5-34
Weatherproofing an N type connector....................................................................................5-37
Replacing PSU fuses .................................................................................................................5-40
Chapter 6:
Configuration and alignment .......................................................................................6-1
Preparing for configuration and alignment.....................................................................................6-2
Safety precautions ......................................................................................................................6-2
Regulatory compliance...............................................................................................................6-2
Selecting configuration options.................................................................................................6-2
Generating a License Key...........................................................................................................6-3
Connecting to the unit .......................................................................................................................6-5
Configuring the management PC ..............................................................................................6-5
Connecting to the PC and powering up ....................................................................................6-6
Using the web interface.....................................................................................................................6-7
Logging into the web interface ..................................................................................................6-7
Using the menu options .............................................................................................................6-8
Installation menu .............................................................................................................................6-10
Starting the Installation Wizard ...............................................................................................6-10
Disarm Installation page...........................................................................................................6-11
Current Installation Summary page ........................................................................................6-11
Software License Key page ......................................................................................................6-12
Interface Configuration page ...................................................................................................6-14
Wireless Configuration page....................................................................................................6-15
Confirm Installation Configuration page.................................................................................6-20
System menu....................................................................................................................................6-21
System Configuration page .....................................................................................................6-21
LAN Configuration page...........................................................................................................6-24
Page vii

Contents
QoS Configuration page...........................................................................................................6-30
SFP Configuration page............................................................................................................6-33
Save & Restore Configuration page........................................................................................6-34
Software Upgrade page............................................................................................................6-37
Management menu..........................................................................................................................6-39
Web-Based Management page................................................................................................6-39
Local User Accounts page........................................................................................................6-42
RADIUS Configuration page ....................................................................................................6-47
Webpage Properties page ........................................................................................................6-49
Email Configuration page.........................................................................................................6-52
Diagnostic Alarms page............................................................................................................6-54
Time Configuration page..........................................................................................................6-55
Syslog Configuration page.......................................................................................................6-59
SNMP pages (for SNMPv3).............................................................................................................6-61
Current SNMP Summary (for SNMPv3)..................................................................................6-61
Step 1: SNMP Configuration (for SNMPv3)............................................................................6-62
Step 2: SNMP MIB-II System Objects (for SNMPv3)..............................................................6-64
Step 3: SNMP User Policy Configuration (for SNMPv3)........................................................6-65
Step 4: SNMP User Accounts Configuration (for SNMPv3) ..................................................6-67
Step 5: SNMP Trap Configuration (for SNMPv3) ...................................................................6-69
Confirm SNMP Configuration (for SNMPv3)..........................................................................6-70
SNMP pages (for SNMPv1/2c) ........................................................................................................6-71
Current SNMP Summary (for SNMPv1/2c).............................................................................6-71
Step 1: SNMP Configuration (for SNMPv1/2c) .......................................................................6-71
Step 2: SNMP MIB-II System Objects (for SNMPv1/2c).........................................................6-72
Step 3: SNMP Trap Configuration (for SNMPv1/2c) ..............................................................6-73
Confirm SNMP Configuration (for SNMPv1/2c) .....................................................................6-74
Security menu ..................................................................................................................................6-75
Preparing for HTTPS/TLS..........................................................................................................6-75
Security Configuration Wizard page .......................................................................................6-76
Step 1: Enter Key of Keys .........................................................................................................6-77
Step 2: Enter TLS Private Key and Public Certificate .............................................................6-78
Step 3: Enter User Security Banner .........................................................................................6-79
Step 4: Enter Login Information Settings................................................................................6-80
Step 5: Enter Random Number Entropy Input .......................................................................6-81
Step 6: Enter Wireless Link Encryption Key............................................................................6-82
Page viii

Contents
Step 7: Enter HTTP and Telnet Settings..................................................................................6-83
Step 8: Commit Security Configuration ..................................................................................6-85
Zeroize CSPs page.....................................................................................................................6-86
Aligning antennas ............................................................................................................................6-87
Starting up the units .................................................................................................................6-87
Checking that the units are armed...........................................................................................6-87
Aligning antennas .....................................................................................................................6-88
Aligning separate antennas for spatial diversity....................................................................6-89
ODU installation tones..............................................................................................................6-90
Graphical Install page ...............................................................................................................6-92
Disarming the units...................................................................................................................6-93
Comparing actual to predicted performance .........................................................................6-94
Other configuration tasks ................................................................................................................6-95
Connecting to the network .......................................................................................................6-95
Upgrading software using TFTP ..............................................................................................6-96
Chapter 7:
Operation ......................................................................................................................7-1
System summary and status ............................................................................................................7-2
System Summary page ..............................................................................................................7-2
System Status page ....................................................................................................................7-3
Rebooting and logging out ...............................................................................................................7-9
Login Information page ..............................................................................................................7-9
Reboot Wireless Unit page.........................................................................................................7-9
Change Password page ............................................................................................................7-10
Logging out................................................................................................................................7-11
Alarms, alerts and messages ..........................................................................................................7-12
Alarms ........................................................................................................................................7-12
Email alerts ................................................................................................................................7-15
Syslog page ...............................................................................................................................7-16
Format of syslog server messages..........................................................................................7-17
Configuration and status messages ........................................................................................7-17
Event messages.........................................................................................................................7-18
Spectrum management...................................................................................................................7-20
Spectrum Management page ..................................................................................................7-20
Interpreting the spectrum management plots .......................................................................7-23
Viewing the active channel history..........................................................................................7-29
Viewing historic spectrum management metrics ..................................................................7-30
Page ix

Contents
Barring channels .......................................................................................................................7-31
System statistics ..............................................................................................................................7-32
System Statistics page..............................................................................................................7-32
Wireless Port Counters page....................................................................................................7-37
Main Port Counters page..........................................................................................................7-38
Aux Port Counters page............................................................................................................7-40
SFP Port Counters page............................................................................................................7-41
Diagnostics Plotter page...........................................................................................................7-42
Generate Downloadable Diagnostics page.............................................................................7-43
Recovery mode ................................................................................................................................7-44
Entering recovery mode ...........................................................................................................7-44
Upgrading software image.......................................................................................................7-46
Resetting IP & Ethernet configuration.....................................................................................7-47
Erasing configuration................................................................................................................7-48
Zeroize Critical Security Parameters page..............................................................................7-50
Rebooting the unit.....................................................................................................................7-51
Chapter 8:
Troubleshooting ...........................................................................................................8-1
Testing link end hardware.................................................................................................................8-2
AC Power Injector LED sequence ..............................................................................................8-2
AC+DC Enhanced power injector LED sequence .....................................................................8-2
Ethernet packet test.....................................................................................................................8-6
Testing the radio link .........................................................................................................................8-9
No activity ....................................................................................................................................8-9
Some activity ...............................................................................................................................8-9
Radio and television interference ............................................................................................8-10
Glossary ..................................................................................................................................................I
Page x

About This User Guide
This guide describes the planning, installation, configuration and operation of the Cambium
PTP 650 Series of point-to-point wireless Ethernet bridges. It is intended for use by the system
designer, system installer and system administrator.
For radio network design, refer to the following chapters:
•Chapter 1: Product description
•Chapter 2: System hardware
•Chapter 3: System planning
•Chapter 4: Legal and regulatory information
For radio equipment installation, refer to the following chapter:
•Chapter 5: Installation
For system configuration, monitoring and fault-finding, refer to the following chapters:
•Chapter 6: Configuration and alignment
•Chapter 7: Operation
•Chapter 8: Troubleshooting
Contacting Cambium Networks
Support website: http://www.cambiumnetworks.com/support
Main website: http://www.cambiumnetworks.com
Sales enquiries: [e-mail]
Support enquiries: [e-mail]
Telephone number list: http://www.cambiumnetworks.com/contact
Address: Cambium Networks Limited,
Linhay Business Park,
Eastern Road,
Ashburton,
Devon, UK,
TQ13 7UP
Page 1

About This User Guide Important regulatory information
Purpose
Cambium Networks Point-To-Point (PTP) documents are intended to instruct and assist personnel
in the operation, installation and maintenance of the Cambium PTP equipment and ancillary
devices. It is recommended that all personnel engaged in such activities be properly trained.
Cambium disclaims all liability whatsoever, implied or express, for any risk of damage, loss or
reduction in system performance arising directly or indirectly out of the failure of the customer, or
anyone acting on the customer's behalf, to abide by the instructions, system parameters, or
recommendations made in this document.
Cross references
References to external publications are shown in italics. Other cross references, emphasized in
blue text in electronic versions, are active links to the references.
This document is divided into numbered chapters that are divided into sections. Sections are not
numbered, but are individually named at the top of each page, and are listed in the table of
contents.
Feedback
We appreciate feedback from the users of our documents. This includes feedback on the structure,
content, accuracy, or completeness of our documents. Send feedback to
[e-mail].
Page 2

About This User Guide Important regulatory information
Important regulatory information
The PTP 650 product is certified as an unlicensed device in frequency bands where it is not allowed
to cause interference to licensed services (called primary users of the bands).
Radar avoidance
In countries where radar systems are the primary band users, the regulators have mandated
special requirements to protect these systems from interference caused by unlicensed devices.
Unlicensed devices must detect and avoid co-channel operation with radar systems.
The PTP 650 provides detect and avoid functionality for countries and frequency bands requiring
protection for radar systems.
Installers and users must meet all local regulatory requirements for radar detection. To
meet these requirements, users must install a license key for the correct country during
commissioning of the PTP 650. If this is not done, installers and users may be liable to civil
and criminal penalties.
Contact the Cambium helpdesk if more guidance is required.
USA and Canada specific information
The USA Federal Communications Commission (FCC) has asked manufacturers to implement
special features to prevent interference to weather radar systems that operate in the band 5600
MHz to 5650 MHz. These features must be implemented in all products able to operate outdoors in
the band 5470 MHz to 5725 MHz.
Manufacturers must ensure that such radio products cannot be configured to operate outside of
FCC rules; specifically it must not be possible to disable or modify the radar protection functions
that have been demonstrated to the FCC.
In order to comply with these FCC requirements, Cambium supplies variants of the PTP 650 for
operation in the USA or Canada. These variants are only allowed to operate with license keys that
comply with FCC/IC rules. In particular, operation of radio channels overlapping the band
5600-5650 MHz is not allowed and these channels are permanently barred.
In addition, other channels may also need to be barred when operating close to weather radar
installations.
Note
To ensure compliance with FCC rules (KDB 443999: Interim Plans to Approve UNII
Devices Operating in the 5470 - 5725 MHz Band with Radar Detection and DFS
Capabilities), follow Avoidance of weather radars (USA only) on page 3-20.
Page 3

About This User Guide Important regulatory information
Other variants of the PTP 650 are available for use in the rest of the world, but these variants are
not supplied to the USA or Canada except under strict controls, when they are needed for export
and deployment outside the USA or Canada.
Specific expertise and training required for professional
installers
To ensure that the PTP 650 is installed and configured in compliance with the requirements of
Industry Canada and the FCC, installers must have the radio engineering skills and training
described in this section. This is particularly important when installing and configuring a PTP 650
system for operation in the 5.4 GHz UNII band.
Avoidance of weather radars
The installer must be familiar with the requirements in FCC KDB 443999. Essentially, the installer
must be able to:
•Access the FCC data base of weather radar location and channel frequencies.
•Use this information to correctly configure the product (using the GUI) to avoid operation on
channels that should be barred according to the guidelines that are contained in the KDB and
explained in detail in this user guide.
External antennas
When using a connectorized version of the product (as compared to the version with an integrated
antenna), the conducted transmit power may need to be reduced to ensure the regulatory limit on
transmitter EIRP is not exceeded. The installer must have an understanding of how to compute
the effective antenna gain from the actual antenna gain and the feeder cable losses.
The range of permissible values for maximum antenna gain and feeder cable losses are included
in this user guide together with a sample calculation. The product GUI automatically applies the
correct conducted power limit to ensure that it is not possible for the installation to exceed the
EIRP limit, when the appropriate values for antenna gain and feeder cable losses are entered into
the GUI.
Ethernet networking skills
The installer must have the ability to configure IP addressing on a PC and to set up and control
products using a web browser interface.
Page 4

About This User Guide Important regulatory information
Lightning protection
To protect outdoor radio installations from the impact of lightning strikes, the installer must be
familiar with the normal procedures for site selection, bonding and grounding. Installation
guidelines for the PTP 650 can be found in Chapter 2: System hardware and Chapter 5: Installation.
Training
The installer needs to have basic competence in radio and IP network installation. The specific
requirements applicable to the PTP 650 should be gained by reading Chapter 5: Installation and
Chapter 6: Configuration and alignment and by performing sample set ups at base workshop
before live deployments.
Page 5

About This User Guide Problems and warranty
Problems and warranty
Reporting problems
If any problems are encountered when installing or operating this equipment, follow this
procedure to investigate and report:
1
Search this document and the software release notes of supported releases.
2
Visit the support website.
3
Ask for assistance from the Cambium product supplier.
4
Gather information from affected units, such as any available diagnostic downloads.
5
Escalate the problem by emailing or telephoning support.
Repair and service
If unit failure is suspected, obtain details of the Return Material Authorization (RMA) process from
the support website.
Hardware warranty
Cambium’s standard hardware warranty is for one (1) year from date of shipment from Cambium
Networks or a Cambium distributor. Cambium Networks warrants that hardware will conform to
the relevant published specifications and will be free from material defects in material and
workmanship under normal use and service. Cambium shall within this time, at its own option,
either repair or replace the defective product within thirty (30) days of receipt of the defective
product. Repaired or replaced product will be subject to the original warranty period but not less
than thirty (30) days.
To register PTP products or activate warranties, visit the support website. For warranty assistance,
contact the reseller or distributor.
Caution
Using non-Cambium parts for repair could damage the equipment or void warranty.
Contact Cambium for service and repair instructions.
Portions of Cambium equipment may be damaged from exposure to electrostatic
discharge. Use precautions to prevent damage.
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About This User Guide Security advice
Security advice
Cambium Networks systems and equipment provide security parameters that can be configured
by the operator based on their particular operating environment. Cambium recommends setting
and using these parameters following industry recognized security practices. Security aspects to
be considered are protecting the confidentiality, integrity, and availability of information and
assets. Assets include the ability to communicate, information about the nature of the
communications, and information about the parties involved.
In certain instances Cambium makes specific recommendations regarding security practices,
however the implementation of these recommendations and final responsibility for the security of
the system lies with the operator of the system.
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About This User Guide Warnings, cautions, and notes
Warnings, cautions, and notes
The following describes how warnings and cautions are used in this document and in all
documents of the Cambium Networks document set.
Warnings
Warnings precede instructions that contain potentially hazardous situations. Warnings are used to
alert the reader to possible hazards that could cause loss of life or physical injury. A warning has
the following format:
Warning
Warning text and consequence for not following the instructions in the warning.
Cautions
Cautions precede instructions and are used when there is a possibility of damage to systems,
software, or individual items of equipment within a system. However, this damage presents no
danger to personnel. A caution has the following format:
Caution
Caution text and consequence for not following the instructions in the caution.
Notes
A note means that there is a possibility of an undesirable situation or provides additional
information to help the reader understand a topic or concept. A note has the following format:
Note
Note text.
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