Cambium Networks 89FT0006 Users manual
System Release 2.0
User Guide
• Product Description
• System Planning
• Configuration
• Operation and
Troubleshooting
• Legal and Reference
Information
CAMBIUM NETWORKS
Accuracy
Copyrights
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License Agreements
High Risk Materials
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
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This document, Cambium products, and 3rd Party software products described in this document
may include or describe copyrighted Cambium and other 3
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Software and documentation are copyrighted materials. Making unauthorized copies is
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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.
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.
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
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support, or weapons systems (“High Risk Use”). Any High Risk is unauthorized, is made at your
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© 2014 Cambium Networks Limited. All Rights Reserved.
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Calculated distances
and power compliance margins
271
Safety and regulatory information
This section describes important safety and regulatory guidelines that must be observed by
personnel installing or operating ePMP equipment.
IMPORTANT SAFETY INFORMATION
Warning
To prevent loss of life or physical injury, observe the safety guidelines in this section.
Power lines
Exercise extreme care when working near power lines.
Working at heights
Exercise extreme care when working at heights.
Grounding and protective earth
Connectorized ePMP devices must be properly grounded to protect against lightning. It is the
user’s responsibility to install the equipment in accordance with national regulations. In the USA,
follow Section 810 of the National Electric Code, ANSI/NFPA No.70-1984 (USA). In Canada, follow
Section 54 of the Canadian Electrical Code. These codes describe correct installation procedures
for grounding the outdoor unit, mast, lead-in wire and discharge unit, size of grounding
conductors and connection requirements for grounding electrodes. Other regulations may apply in
different countries and therefore it is recommended that installation be contracted to a
professional installer.
Powering down before servicing
Always power down and unplug the equipment before servicing.
Primary disconnect device
The ePMP power supply is the primary disconnect device.
External cables
Safety may be compromised if outdoor rated cables are not used for connections that will be
exposed to the outdoor environment.
RF exposure near the antenna
Strong radio frequency (RF) fields will be present close to the antenna when the transmitter is on.
Always turn off the power to the ePMP device before undertaking maintenance activities in front of
the antenna.
Minimum separation distances
Install the ePMP device so as to provide and maintain the minimum separation distances from all
persons.
The minimum separation distances for each frequency variant are specified in
on page
.
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Avoidance of weather radars
IMPORTANT REGULATORY INFORMATION
The ePMP 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 ePMP 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 set the correct country code during commissioning of the ePMP
equipment. 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 ePMP for
operation in the USA or Canada. These variants are only allowed to operate with license keys and
country codes 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
on page 66.
Other variants of the ePMP 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.
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System planning
Specific expertise and training required for professional installers
To ensure that the ePMP 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 an ePMP
system for operation in the 5 GHz band (5150 – 5250 MHz FCC only, 5250 – 5350 MHz, 5470 – 5725
MHz, 5725 – 5850 MHz).
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 must be avoided according to the guidelines that are contained in the KDB and
explained in detail in this user guide.
In ETSI regions, the band 5600 MHz to 5650 MHz is reserved for the use of weather radars.
External antennas
When using a connectorized version of the product (as compared to the version with an integrated
antenna), the conducted transmit power must 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 antenna cable losses.
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
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.
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 ePMP can be found in section
on page 60.
Training
The installer needs to have basic competence in radio and IP network installation. The specific
requirements applicable to the ePMP must be gained by reading this user guide and by performing
sample set ups at base workshop before live deployments.
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Safety and regulatory information ................................................................................... 3
Contents ..................................................................................................................... 6
About This User Guide ............................................................................................. 11
General information ....................................................................................................... 12
Problems and warranty .................................................................................................. 14
Security advice ............................................................................................................... 15
Warnings, cautions, and notes ....................................................................................... 16
Caring for the environment ............................................................................................ 17
Product description .................................................................................................. 18
Overview of ePMP .......................................................................................................... 19
Wireless operation ......................................................................................................... 21
System management ..................................................................................................... 25
System hardware ..................................................................................................... 29
Site planning .................................................................................................................. 30
Connectorized Module ................................................................................................... 32
Contents
Important safety information ........................................................................................... 3
Important regulatory information.................................................................................... 4
Version information ........................................................................................................12
Contacting Cambium Networks ......................................................................................12
Purpose ............................................................................................................................19
Key features .....................................................................................................................19
Typical deployment Equipment ......................................................................................20
Time division duplexing ..................................................................................................21
OFDM and channel bandwidth .......................................................................................21
Adaptive modulation .......................................................................................................21
MIMO ...............................................................................................................................21
Radar avoidance ..............................................................................................................22
Encryption ........................................................................................................................22
Country codes ..................................................................................................................22
PMP networks ..................................................................................................................23
Further reading on wireless operation ...........................................................................24
Management agent .........................................................................................................25
Web server .......................................................................................................................25
SNMP ...............................................................................................................................27
Network Time Protocol (NTP) .........................................................................................27
Cambium Network Services Server ...............................................................................27
Software upgrade ............................................................................................................27
Further reading on system management.......................................................................28
Site installation ................................................................................................................30
Grounding and lightning protection ...............................................................................30
Lightning protection zones .............................................................................................31
Connectorized Module description ................................................................................32
Connectorized part numbers ..........................................................................................33
Connectorized module mounting bracket ......................................................................33
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Connectorized module antennas and antenna cabling .................................................. 39
Integrated Module .......................................................................................................... 40
Un-synced Connectorized Radio .................................................................................... 46
Ethernet cabling ............................................................................................................. 57
Surge Suppression unit .................................................................................................. 58
System planning ...................................................................................................... 60
Radio spectrum planning ............................................................................................... 61
Connectorized Module interfaces ...................................................................................34
Connectorized Module LEDs ...........................................................................................35
Connectorized Module specifications ............................................................................36
Connectorized Module heater .........................................................................................37
Connectorized Module and external antenna location ..................................................37
Connectorized Module wind loading .............................................................................38
Connectorized Module software packages ....................................................................38
Antenna requirements ....................................................................................................39
FCC and IC approved antennas ......................................................................................39
Integrated Module description .......................................................................................40
Integrated Module part numbers ...................................................................................41
Integrated Module mounting bracket .............................................................................41
Integrated Module interfaces ..........................................................................................42
Integrated Module LEDs ..................................................................................................43
Integrated Module specifications ...................................................................................43
Integrated Module heater ...............................................................................................44
Integrated Module wind loading ....................................................................................44
Integrated Module software packages ...........................................................................45
Un-synced Connectorized Radio description .................................................................46
Un-synced Connectorized Radio part numbers .............................................................47
Un-synced Connectorized Radio mounting bracket ......................................................47
Un-synced Connectorized Radio Interfaces ...................................................................48
Un-synced Connectorized Radio LEDs ...........................................................................49
Un-synced Connectorized Radio specifications .............................................................50
Un-synced Connectorized Radio heater .........................................................................51
Un-synced Connectorized Radio and external antenna location ..................................51
Un-synced connectorized Radio wind loading ..............................................................52
Un-synced Connectorized Radio software packages.....................................................53
Un-synced connectorized radio antennas and antenna cabling ...................................53
Antenna requirements ....................................................................................................53
FCC and IC approved antennas ......................................................................................53
Power supply description ...............................................................................................54
Power supply part numbers............................................................................................54
Power supply interfaces ..................................................................................................55
Power supply specifications ...........................................................................................56
Power supply location .....................................................................................................56
Ethernet standards and cable lengths ............................................................................57
Outdoor Cat5e cable ........................................................................................................57
Cambium 600SSH details ...............................................................................................59
General wireless specifications ......................................................................................61
Regulatory limits .............................................................................................................62
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Link planning .................................................................................................................. 67
Planning for connectorized units .................................................................................... 68
Data network planning ................................................................................................... 69
Configuration ........................................................................................................... 71
Preparing for configuration ............................................................................................ 72
Connecting to the unit .................................................................................................... 73
Using the web interface ................................................................................................. 75
Configuring connectorized radios using the Quick Start menu ..................................... 84
Configuring STA units using the Quick Start menu ....................................................... 87
Using the AP menu options ........................................................................................... 90
Using the STA menu options ....................................................................................... 144
Radius Server ............................................................................................................... 194
Operation and Troubleshooting ............................................................................ 204
General Planning for Troubleshooting ......................................................................... 205
Upgrading device software .......................................................................................... 207
Upgrading on-board GPS chip firmware...................................................................... 208
Testing hardware ......................................................................................................... 209
Conforming to the limits .................................................................................................63
Available spectrum ..........................................................................................................63
Channel bandwidth .........................................................................................................65
Avoidance of weather radars ..........................................................................................66
Range and obstacles .......................................................................................................67
Path loss ...........................................................................................................................67
Adaptive modulation .......................................................................................................67
Calculating maximum power level for connectorized units ..........................................68
Ethernet interfaces ..........................................................................................................69
Management VLAN .........................................................................................................69
Quality of service for bridged Ethernet traffic ...............................................................70
Safety precautions ...........................................................................................................72
Regulatory compliance ...................................................................................................72
Configuring the management PC ...................................................................................73
Connecting to the PC and powering up .........................................................................74
Logging into the web interface .......................................................................................76
Layout of the web interface ............................................................................................77
AP Configure menu .........................................................................................................91
AP Monitor menu .......................................................................................................... 116
AP Tools menu .............................................................................................................. 131
STA Configuration menu .............................................................................................. 145
STA Monitor menu ........................................................................................................ 170
STA Tools menu ............................................................................................................ 182
Installing Free-radius on Ubuntu 12.04 LTS ................................................................. 194
Configuring Free-radius server ..................................................................................... 194
Configuring radius parameters on AP .......................................................................... 196
Configuring radius parameters on STA ....................................................................... 197
Configuring MIR profiles ............................................................................................... 198
Creating certificate for Radius server and STA device ................................................ 199
General Fault Isolation Process .................................................................................... 205
Questions to Help Isolate the Problem ......................................................................... 206
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Troubleshooting the radio link ..................................................................................... 211
Using the device external reset button ........................................................................ 213
Resetting the ePMP to factory defaults by power cycling ............................................ 214
Legal and reference information ........................................................................... 215
Cambium Networks end user license agreement ........................................................ 216
Hardware warranty ....................................................................................................... 266
Limit of liability ............................................................................................................. 267
System threshold, output power and link loss ............................................................. 268
Compliance with safety standards ............................................................................... 269
Compliance with radio regulations .............................................................................. 277
Notifications ................................................................................................................. 296
Checking the power supply LED ................................................................................... 209
Power LED is off ............................................................................................................ 209
Ethernet LED is off ......................................................................................................... 209
Module has lost or does not establish radio connectivity........................................... 211
Link is unreliable or does not achieve data rates required ......................................... 212
Module Has Lost or Does Not Gain GPS Synchronization .......................................... 212
Acceptance of this agreement ...................................................................................... 216
Definitions ...................................................................................................................... 216
Grant of license ............................................................................................................. 216
Conditions of use ........................................................................................................... 216
Title and restrictions ...................................................................................................... 217
Confidentiality ............................................................................................................... 218
Right to use Cambium’s name ..................................................................................... 218
Transfer .......................................................................................................................... 218
Updates .......................................................................................................................... 218
Maintenance .................................................................................................................. 218
Disclaimer ...................................................................................................................... 219
Limitation of liability ..................................................................................................... 219
U.S. government ........................................................................................................... 219
Term of license .............................................................................................................. 220
Governing law ............................................................................................................... 220
Assignment .................................................................................................................... 220
Survival of provisions ................................................................................................... 220
Entire agreement ........................................................................................................... 220
Third party software ...................................................................................................... 220
Preamble ........................................................................................................................ 230
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION ... 231
END OF TERMS AND CONDITIONS ............................................................................. 236
Electrical safety compliance.......................................................................................... 269
Electromagnetic compatibility (EMC) compliance ....................................................... 269
Human exposure to radio frequency energy ............................................................... 270
Type approvals .............................................................................................................. 277
FCC and ETSI compliance testing ................................................................................. 277
Examples of regulatory limits ....................................................................................... 279
2.4 GHz, 5.1 GHz, 5.4 GHz regulatory compliance ....................................................... 296
5.8 GHz regulatory compliance ..................................................................................... 300
Thailand notification ..................................................................................................... 304
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Data throughput tables ................................................................................................. 305
Radio Specifications ..................................................................................................... 306
Glossary ....................................................................................................................... 318
Data throughput capacity .............................................................................................. 305
Connectorized Radio Specifications ............................................................................. 306
Integrated Radio Specifications .................................................................................... 310
Un-synced Connectorized Radio Specifications .......................................................... 314
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Product description
System hardware
System planning
Legal and reference information
Configuration
Operation and Troubleshooting
About This User Guide
This guide describes the planning, installation, configuration and operation of the Cambium ePMP
Series of point-to-multipoint wireless Ethernet systems. It is intended for use by the system
designer, system installer and system administrator.
For radio network design, see:
•
•
•
•
For system configuration, monitoring and fault-finding, see:
•
•
For radio equipment installation, refer to the following guides:
• The ePMP Quick Start Guide
• The ePMP Installation Guide
Note
The ePMP Installation Guide is reproduced as an addendum to this user guide.
11
Issue
Date of issue
Remarks
http://www.cambiumnetworks.com/support
http://www.cambiumnetworks.com
solutions@cambiumnetworks.com
support@cambiumnetworks.com
http://www.cambiumnetworks.com/support/contact-support/
General information
VERSION INFORMATION
The following shows the issue status of this document:
001v000 October 2013 System Release 1.0 (Software Release 1.1.6)
002v000 December 2013 System Release 1.0 (Software Release 1.2.3)
003v000 January 2014 System Release 1.0 (Software Release 1.3.4)
004v000 March 2014 System Release 1.0 (Software Release 1.4.1)
005v000 March 2014 System Release 1.0 (Software Release 1.4.3)
006v000 April 2014 System Release 1.0 (Software Release 1.4.4)
007v000 June 2014 System Release 2.0 (Software Release 2.0)
CAMBIUM NETWORKS
CONTACTING CAMBIUM NETWORKS
Support website:
Main website:
Sales enquiries:
Support enquiries:
Telephone number list:
Address: Cambium Networks Limited,
3800 Golf Road, Suite 360
Rolling Meadows, IL 60008
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green text
support@cambiumnetworks.com
Purpose
Cambium Networks enhanced Point-To-Multipoint (ePMP) documents are intended to instruct and
assist personnel in the operation, installation and maintenance of the Cambium ePMP equipment
and ancillary devices. It is recommended that all personnel engaged in such activities be properly
trained.
Cambium disclaims all liability whatsoever, implied or expressed, 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
in electronic versions, are active links to the references.
Feedback
We appreciate feedback from the users of our documents. This includes feedback on the structure,
content, accuracy, or completeness of our documents.
For feedback, e-mail to
.
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1
2
http://www.cambiumnetworks.com/support/epmp
3
4
5
http://www.cambiumnetworks.com/support/contact-support
Problems and war r an t y
Reporting problems
If any problems are encountered when installing or operating this equipment, follow this
procedure to investigate and report:
Search this document and the software release notes of supported releases.
Visit the support website:
Ask for assistance from the Cambium product supplier.
Gather information from affected units, such as any available diagnostic downloads.
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.
Warranty
Cambium’s standard hardware warranty is for one (1) year from date of shipment from Cambium
or a Cambium distributor. Cambium 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 PMP products or activate warranties, visit the support website.
For warranty assistance, contact the reseller or distributor.
Caution
Do not open the radio housing for repair or diagnostics; there are no serviceable parts within the
housing.
Portions of Cambium equipment may be damaged from exposure to electrostatic discharge. Use
precautions to prevent damage.
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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.
Cambium Networks ePMP equipment is shipped with default web management interface login
credentials. It is highly recommended that these usernames and passwords are modified prior to
system deployment.
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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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http://www.cambiumnetworks.com/support
Caring for the environ me nt
The following information describes national or regional requirements for the disposal of
Cambium Networks supplied equipment and for the approved disposal of surplus packaging.
In EU countries
The following information is provided to enable regulatory compliance with the European Union
(EU) directives identified and any amendments made to these directives when using Cambium
equipment in EU countries.
Disposal of Cambium equipment
European Union (EU) Directive 2002/96/EC Waste Electrical and Electronic Equipment (WEEE)
Do not dispose of Cambium equipment in landfill sites. For disposal instructions, see
Disposal of surplus packaging
Do not dispose of surplus packaging in landfill sites. In the EU, it is the individual recipient’s
responsibility to ensure that packaging materials are collected and recycled according to the
requirements of EU environmental law.
In non-EU countries
In non-EU countries, dispose of Cambium equipment and all surplus packaging in accordance with
national and regional regulations.
17
Overview of ePMP
Wireless operation
System management
25.
Product description
This chapter provides a high level description of the ePMP product. It describes in general terms
the function of the product, the main product variants and typical deployment. It also describes the
main hardware components.
The following topics are described in this chapter:
• The key features, typical uses, product variants and components of the ePMP are explained in
• How the ePMP wireless link is operated, including modulation modes, power control and
security is described under
• The ePMP management system, including the web interface, installation, configuration, alerts
and upgrades is described in
on page 19.
on page 21.
on page
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Table 1
Overview of ePMP
This section introduces the key features, typical uses, product variants and components of the
ePMP.
PURPOSE
Cambium ePMP Series products are designed for Ethernet bridging over point-to-multipoint
microwave links in the unlicensed 5 GHz and 2.4 GHz bands. Users must ensure that the ePMP
Series complies with local operating regulations.
The ePMP Series acts as a transparent bridge between two segments of the operator and
customers’ networks. In this sense, it can be treated as a virtual wired connection between the
Access Point and the Station. The ePMP Series
other part of the network and filters packets it does not need to forward.
KEY FEATURES
The ePMP is a high performance wireless bridge for Ethernet traffic with a maximum UDP
throughput of 200+ Mbps (40 MHz Channel Bandwidth). It is capable of operating in line-of-sight
(LOS) and near-LOS conditions. Its maximum LOS range is 13 mi (20 MHz channel bandwidth) or 9
mi (40 MHz channel bandwidth).
forwards 802.3 Ethernet packets destined for the
Utilizing GPS sync, the ePMP is an ideal fit for networks that require capacity and reliability for
superior QoS in remote and underserved areas. The integrated PTP and PMP solution features an
efficient GPS synchronized operational mode that permits highly scalable frequency reuse.
The ePMP operates in the unlicensed 5 GHz and 2.4 GHz bands and supports a channel bandwidth
of up to 40 MHz. It is available with an integrated antenna or in connectorized version for use with
an external antenna.
The wireless link is primarily TDD based. System Release 1.2.3 added a Flexible Frame Ratio
option which provides improved latency and throughput under unsynchronized operational mode.
From a network point-of-view, the ePMP wireless link is a transparent Layer 2 bridge. It offers
limited switching capability in order to support a primary and a secondary (future release) Ethernet
port on the Station.
ePMP supports quality of service (QoS) classification capability and supports three traffic priorities.
Management of the unit is conducted via the same interface as the bridged traffic (in-band
Management).
System Release 1.3.4 adds support for RADIUS EAP-TTLS authentication and VSA support for MIR.
When deployed with a sector antenna, the ePMP 1000 GPS Sync Radio can be configured as a GPS
synchronized Access Point serving ePMP Integrated Radios configured as Stations. When
deployed with a high gain point to point antenna, the ePMP GPS Sync Radio can be configured to
be a GPS Synchronized Backhaul Master, forming a PTP link with another ePMP Radio module.
A summary of the main ePMP characteristics is listed under
.
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Table 1
Characteristic
Value
Connectorized Radio with GPS Sync:
GPS Sync Connectorized Radio:
Connectorized Radio Cabling and lightning protection:
Integrated Radio:
Integrated or Un-sync Connectorized Radio:
Integrated Radio Power Supply:
Integrated Radio Cabling and lightning protection:
System hardware
Topology PMP or PTP
Wireless link condition LOS, near LOS
Range 20 MHz: Up to 13 mi
Scheduler TDD or Flexible
Connectivity Ethernet
Operating frequencies Unlicensed bands, 5 GHz and 2.4 GHz
Channel bandwidth 20 MHz, 40 MHz
Data rate 200+ Mbps
Main characteristics of the ePMP Series
40 MHz: Up to 9 mi
TYPICAL DEPLOYMENT EQUIPMENT
The ePMP is a solution consisting of integrated or connectorized outdoor units, indoor power
supply units/LAN injectors, cabling, and surge suppression equipment.
The main hardware components of an ePMP deployment are as follows:
•
the radio, networking, and surge suppression electronics.
•
Ethernet (PoE) supply and 1000/100/10 Base-TX to the Access Point.
•
cables, and connectors.
•
networking, antenna, and surge suppression electronics.
•
containing all the radio, networking, and surge suppression electronics.
•
Ethernet (PoE) supply and 100/10 Base-TX to the Subscriber Module.
•
For more information about these components, including interfaces, specifications and Cambium
part numbers, see
An integrated-antenna outdoor transceiver unit containing all the radio,
A connectorized outdoor transceiver unit containing all
An indoor power supply module providing Power-over-
Shielded Cat5e cables, grounding
A connectorized outdoor transceiver unit
An indoor power supply module providing Power-over-
Shielded Cat5e cables and connectors
on page 29.
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CAMBIUM NETWORKS
Wireless operation
This section describes how the ePMP wireless link is operated, including modulation modes,
power control and security.
TIME DIVISION DUPLEXING
TDD cycle
ePMP links operate using Time Division Duplexing (TDD). The links employ a TDD cycle in which
the APs determines which STAs may transmit and when based on the configured downlink/uplink
ratio (duty cycle). Three fixed Downlink/Uplink frame ratios are available – 75/25, 50/50 and 30/70.
A flexible frame ratio is available as a fourth option where the AP dynamically determines the
downlink and uplink ratio based on data demand in each direction.
OFDM AND CHANNEL BANDWIDTH
The ePMP series transmits using Orthogonal Frequency Division Multiplexing (OFDM). This
wideband signal consists of many equally spaced sub-carriers. Although each sub carrier is
modulated at a low rate using conventional modulation schemes, the resultant data rate from all
the sub-carriers is high.
The channel bandwidth of the OFDM signal is 20 MHz or 40 MHz, based on operator configuration.
Each channel is offset in center frequency from its neighboring channel by 5 MHz.
ADAPTIVE MODULATION
The ePMP series can transport data over the wireless link using a number of different modulation
modes ranging from 64-QAM to QPSK. For a given channel bandwidth and TDD frame structure,
each modulation mode transports data at a fixed rate. Also, the receiver requires a given signal to
noise ratio in order to successfully demodulate a given modulation mode. Although the more
complex modulations such as 64QAM will transport data at a much higher rate than the less
complex modulation modes, the receiver requires a much higher signal to noise ratio.
The ePMP series provides an adaptive modulation scheme where the receiver constantly monitors
the quality of the received signal and notifies the far end of the link of the optimum modulation
mode with which to transmit. In this way, optimum capacity is achieved at all times.
MIMO
Multiple-Input Multiple-Output (MIMO) technique provides protection against fading and increases
the probability of a received decoded signal to be usable.
The ePMP transmits two signals on the same radio frequency, one of which is 90 degrees offset
from the other.
21
CAMBIUM NETWORKS
RAD AR AVO I DANC E
In regions where protection of radars is part of the local regulations, the ePMP must detect
interference from radar-like systems and avoid co-channel operation with these systems.
To meet this requirement, the ePMP implements the following features:
• The equipment can only transmit on available channels, of which there are none at initial
power up. The radar detection algorithm will always scan a usable channel for 60 seconds for
radar interference before making the channel an available channel.
• This compulsory channel scan will mean that there is at least 60 seconds service outage every
time radar is detected and that the installation time is extended by at least 60 seconds even if
there is found to be no radar on the channel
There is a secondary requirement for bands requiring radar avoidance. Regulators have mandated
that products provide a uniform loading of the spectrum across all devices. In general, this
prevents operation with fixed frequency allocations. However:
• ETSI regulations do allow frequency planning of networks (as that has the same effect of
spreading the load across the spectrum).
• The FCC does allow channels to be avoided if there is actually interference on them.
Note
When operating in a region which requires DFS, ensure that the AP is configured with alternate
frequencies and that the STA is configured to scan for these frequencies to avoid long outages.
ENCRYPTION
The ePMP supports optional encryption for data transmitted over the wireless link. The encryption
algorithm used is the Advanced Encryption Standard (AES) with 128-bit key size. AES is a
symmetric encryption algorithm approved by U.S. Government organizations (and others) to
protect sensitive information.
COUNTRY CODES
Some aspects of wireless operation are controlled, enforced or restricted according to a country
code. ePMP country codes represent individual countries (for example Denmark) or regulatory
regions (for example FCC or ETSI).
Country codes affect the following aspects of wireless operation:
• Maximum transmit power
• Radar avoidance
• Frequency range
Caution
To avoid possible enforcement action by the country regulator, always operate links in
accordance with local regulations
22
CAMBIUM NETWORKS
System planning
PMP NETWORKS
Using frequency planning
Frequency planning is the exercise of assigning operating channels to PMP units so as to minimize
RF interference between links. Frequency planning must consider interference from any PMP unit
to any other PMP unit in the network. Low levels of interference normally allow for stable
operation and high link capacity.
The frequency planning task is made more straightforward by use of the following techniques:
• Using several different channels
• Separating units located on the same mast
• Configuring a 5 MHz guard band between adjacent sector operating band edges.
For help with planning networks, see
distributor or re-seller.
. You can also contact your Cambium
23
CAMBIUM NETWORKS
Radio spectrum planning
Link planning
Compliance
with safety standards
269
Compliance with radio regulations
277.
Notifications
293
Data throughput tables
305
Configuration
71.
Operation and
Troubleshooting
204
FURTHER READING ON WIRELESS OPERATION
For information on planning wireless operation, see:
• The regulatory restrictions that affect radio spectrum usage, such as frequency range and
radar avoidance is described under
• The factors to be taken into account when planning links such as range, path loss and data
throughput are described under
on page 67.
on page 61
• The safety specifications against which the ePMP has been tested are listed under
limits.
• How ePMP complies with the radio regulations that are enforced in various countries is
explained in
• Compliance with the radio regulations that are enforced in various regions is explained under
• Tables and graphs to support calculation of the data rate capacity that can be provided by
ePMP configurations are available at
For more information on configuring and operating the wireless link, see:
• The configuration parameters of the ePMP devices described under
• Post-installation procedures and troubleshooting tips explained under
on page
on page
on page
.
. It also describes how to keep RF exposure within safe
on page
`.
on page
.
on page
24
CAMBIUM NETWORKS
System management
This section introduces the ePMP management system, including the web interface, installation,
alerts and upgrades, configuration and management software.
MANAGE M E N T AG E N T
ePMP equipment is managed through an embedded management agent. Management
workstations, network management systems or PCs can be connected to this agent using the
module’s Ethernet port or over the air (STA).
The management agent supports the following interfaces:
• Hypertext Transfer Protocol (HTTP)
• Hypertext Transfer Protocol secure (HTTPs)
• Simple Network Management Protocol (SNMP)
• Network Time Protocol (NTP)
• System logging (Syslog)
• Cambium Network Services Server (CNSS) software
• Dynamic Host Configuration Protocol (DHCP)
WEB SERVER
The ePMP management agent contains a web server. The web server supports access via the
HTTP and HTTPs interfaces.
Web-based management offers a convenient way to manage the ePMP equipment from a locally
connected computer or from a network management workstation connected through a
management network, without requiring any special management software. The web-based
interfaces are the only interfaces supported for installation of ePMP, and for the majority of ePMP
configuration management tasks.
25
CAMBIUM NETWORKS
Figure 1
Dashboard:
Configure:
Monitor:
Tools:
Quick Start:
AP web-based management screenshot
Web pages
The web-based management interfaces provide comprehensive web-based fault, configuration,
performance and security management functions organized into the following web-pages and
groups:
Access Point and Station web-pages:
•
remote subscriber status, event log information, and network interface status.
•
parameters, as well as IP, radio, SNMP, Quality of Service (QoS), security, time, VLAN, protocol
filtering, and unit settings.
•
network, and reports system log information.
•
operation including software upgrade, backup/restore, spectrum analyzer, throughput test,
ping test, and traceroute.
•
link establishment and network access.
The Dashboard web-page reports the general device status, session status,
The Configuration web-page may be utilized for configuring general device
The Monitor web-page reports detailed operating statistics for the radio link and
The tools web-page offers useful tools for device installation, configuration, and
The Quick Start web-page provides quick access to requisite parameters for radio
26
CAMBIUM NETWORKS
https://support.cambiumnetworks.com/files/epmp
Configure
System
https://support.cambiumnetworks.com/files/cnss
Tools
Software Upgrade
https://support.cambiumnetworks.com/files/epmp
Identity-based user accounts
When identity-based user accounts are configured, a security officer can define from one to four
user accounts, each of which may have one of the four possible roles:
• ADMINISTRATOR (default username/password “admin”), who has full read and write
permission.
• INSTALLER (default username/password “installer”), who has permission to read and write
parameters applicable to unit installation and monitoring.
• HOME (default username/password “home”), who has permission only to access pertinent
information for support purposes
• READONLY (default username/password “readonly”), who has permission to only view the
Monitor page.
SNMP
The management agent supports fault and performance management by means of an SNMP
interface. The management agent is compatible with SNMP v2c using one Management
Information Base (MIB) file which is available for download from the Cambium Networks Support
website (
).
NETWORK TIME PROTOCOL (NTP)
The clock supplies accurate date and time information to the system. It can be set to run with or
without a connection to a network time server (NTP). It can be configured to display local time by
setting the time zone and daylight saving in the Time web page.
If an NTP server connection is available, the clock can be set to synchronize with the server time at
regular intervals.
ePMP devices may receive NTP data from a CMM3 or CMM4 module or an NTP server configured
in the system’s management network.
The Time Zone option is configurable on the AP’s
offset the received NTP time to match the operator’s local time zone.
=>
page and may be used to
CAMBIUM NETWORK SERVICES SERVER
The Cambium Network Services Server (CNSS) may be used to monitor, configure, and upgrade
Cambium network equipment.
For Cambium Network Services Server download, see
.
SOFTWARE UPGRADE
Software upgrades may be issued via the radio web interface (
CNSS (Cambium Networks Services Server).
For Software upgrades, see
=>
) or via
.
27
AP System page
105
STA System page
152
Operation and Troubleshooting
204
FURTHER READING ON SYSTEM MANAGEMENT
For more information on system management, see:
•
•
•
on page
on page
on page
CAMBIUM NETWORKS
28
CAMBIUM NETWORKS
Site
planning
Connectorized Module
32
Integrated Module
40
Un-
synced Connectorized Radio
Power
supply
Connectorized module antennas and
antenna cabling
Ethernet cabling
57.
Surge
Suppression unit
System hardware
This chapter describes the site planning and hardware components of an ePMP link.
The following topics are described in this chapter:
• Factors to be considered when planning the proposed network is described under
• The connectorized module hardware, part numbers, mounting equipment, and specifications
are described under
• The STA hardware, part numbers, mounting equipment and specifications are described under
• The hardware, part numbers, mounting equipment and specifications are described under
• The power supply hardware, part numbers and specifications are described under
• The AP antenna and part numbers are described under
• Cable standards and lengths are described under
• Surge suppression requirements and recommendations are described under
on page 30.
on page 54.
on page 39.
on page 58.
on page
.
on page 46.
on page
.
on page
29
CAMBIUM NETWORKS
Site planning
Conduct a site survey to ensure that the proposed AP and STA sites meet the requirements
defined in this section.
SITE INSTALLATION
An ePMP site typically consists of a high supporting structure such as a mast, tower or building for
the AP or STA.
There is only one Ethernet interface, a copper Cat5e connection from the AP or STA to the AP/STA
power supply and network terminating equipment. If a 1000 Base-TX (Gigabit) Ethernet connection
is required at the AP, ensure that power supply N000900L001A is utilized.
GROUNDING AND LIGHTNING PROTECTION
Structures, equipment and people must be protected against power surges (typically caused by
lightning) by conducting the surge current to ground via a separate preferential solid path. The
actual degree of protection required depends on local conditions and applicable local regulations.
To adequately protect an ePMP installation, both ground bonding and transient voltage surge
suppression are required.
Warning
Electro-magnetic discharge (lightning) damage is not covered under warranty. The
recommendations in this guide, when followed correctly, give the user the best protection from
the harmful effects of EMD. However 100% protection is neither implied nor possible.
Details of lightning protection methods and requirements can be found in the international
standards IEC 61024-1 and IEC 61312-1, the U.S. National Electric Code ANSI/NFPA No. 70-1984 or
section 54 of the Canadian Electric Code.
Note
International and national standards take precedence over the requirements in this guide.
30
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