1 Pmp Training Cambium

7/26/2019 1 Pmp Training Cambium

http://slidepdf.com/reader/full/1-pmp-training-cambium 1/170

PMP Technical Training



Product Overview

2

• High-performance point to multipoint wireless

broadband solution.

– Fixed, but can support Nomadic – Layer 2 switch-based system

– Multiple frequency and performance

options, often in the unlicensed spectrum(varies by country)



Product Overview

3

• High-performance point to multipoint wireless

broadband solution.

– Fixed, but can support Nomadic – Layer 2 switch-based system

– Multiple frequency and performance

options, often in the unlicensed spectrum(varies by country)



4

Product Overview

• Specific attributes include:

– Point to Multipoint (PMP) system with:

Line-of-Sight system (900 MHz, 2.4 GHz,

5 GHz) Near line-of-sight (900 MHz FSK and

4.9, 5.4, 5.8 GHz OFDM)

– No steady-state degradation with distance or

number of active Remote Modules (within stated

product range)



PMP Portfolio Specification

Copyright 2012 Cambium Networks, Ltd. All rights reserved. 5

FEATURE PMP 100 PMP 100 PMP 100 PMP 100 PMP 320 PMP 430 PMP 450

FrequencyBands

900 MHz 2.4 GHz 5.1, 5.2, 5.4,5.8, 5.9 GHz

5.8 GHz 3.5,3.6 GHz 5.4, 5.8 GHz 5.4, 5.8 GHz

Maximum

Ethernet

Data Rate

4 Mb/sector

24 Mb/tower

14 Mb/sector

84 Mb/tower

14 Mb/sector

84 Mb/tower

14 Mb/sector

84 Mb/tower

48 Mb/sector

192Mb/tower

50 Mb/sector

200 Mb/tower

90 Mb/sector

1Gbps/tower(dual AP ring)

Maximum

LOS Range 40 mi (64 km)

5 mi / 35 mi[1]

8 km / 56km[1]

2 mi (3 km)

2 mi / 35 mi[1]

3 km/ 56km[1]

24 mi (38 km) 5 mi / 30 mi[1]

8 km / 48 km[1]

5 mi / 30 mi[1]

8 km / 48 km[1]

NLOS

Capability YES NA NA NA YES YES YES

[1] Extended Ranges may require LENS or a Reflector Dish[2] Up to 6 sectors per antenna location – total tower bandwidth is 540 Mbps (multiple frequencies can be deployed on a tower, i .e., Two

rings of Access Points can deliver over 1 Gbps of data)



Components and options

• Access Point• Access Point Antenna’s

• Access point RF Cables

• Remote Module• Cluster Management Module (CMM)

• Universal GPS

•Power Supplies

• Surge Suppression

• Remote Module Lens/CLIP/Reflectors

Copyright 2013 Cambium Networks, Inc. All rights reserved. 6



Overview: PMP 400/430/450 Series Architecture

Operator’s

IP Network

Router

Base Station AP Cluster

(Up to 12)

SS

SS

AP: Access Point SM: Subscriber ModuleSS: – Surge Suppressor IP: Internet Protocol

CMM: Cluster Management Module

CANOP Y

CANOP Y

C A N O P Y

SS

C ANOP Y

SS

CMM

Remote Module



Overview: PMP 100 Series Architecture

Operator’s

IP Network

CMM

Router

Base Station AP Cluster

SS

SS

AP: Access Point SM: Subscriber ModuleSS: – Surge Suppressor IP: Internet Protocol


Remote Module



Components and options – PMP450 AP


Features

1000BaseT (Gig-E) Interface

IP67 Certified Access Point Housing

90Mbps Data rate

Built-In Surge Suppression on AP

Compatible with All GPS Devices

Quick-Mount Hardware

5470 MHz - 5875 MHz

10 or 20MHz Channels

DES or AES as standard



Components and options – PMP450 RM


Features

5470 MHz - 5875 MHz

12Watts power consumption

3-5ms Latency

Diffserve QoS

9dBi intergrated antenna


IP 55

Options

4Mbps, 10Mbps, 20Mbps, and

uncapped versions available





Features

Connectorised AP

Sold with or without 60° x 5° -3 dB

beam with near-in null fill antenna

17dBi gain (90° antenna )

45Mbps Data rate

Compatible with CMM4 (56VDC)

5, 10 or 20MHz Channels


Options

5.4GHz or 5.7GHz hardware

DES or AES encryption





Features


5-7ms Latency

Diffserve QoS



IP 55

Options

5.4GHz or 5.87GHz hardware

4Mbps, 10Mbps, 20Mbps, and

uncapped versions available






Features

Connectorised AP

Sold with or without 60° x 5° -3 dB

beam with near-in null fill antenna

17dBi gain (90° antenna )

20Mbps Data rate

Compatible with CMM4 (56VDC)

4.9GHz hardware

10MHz Channels


Options






Features

4.9GHz hardware

12.5Watts power consumption

5-7ms Latency

Diffserve QoS


20Mbps data rate

IP 55

Options






Features

20MHz Channels


FSK Modulation


TDD/TDMA

Options

2.4, 5.1, 5.2, 5.4, 5.7, or 5.9GHz

7 or 14Mbps Data Rate

10 (uPOP) or 200 RM’s

Connectorised or Intergrated

Antenna






Features

20MHz Channels

5-7ms Latency

Diffserve QoS


Diffserve QoS

Options

2.4, 5.1, 5.2, 5.4, 5.7, or 5.9GHz

2, 7 or 14Mbps Data Rate


Antenna





(900MHz)


Features

902-928MHz

8MHz Channels


FSK Modulation8Watts power consumption

4Mbps Data rate

Options


Antenna





(900MHz)


Features

902-928MHz

8MHz Channels

<15 ms Latency

FSK Modulation


4Mbps Data rate

Diffserve QoS

Options


Antenna




Components and options, Reflector


Features

Installs with specific mounting bracket

Compresses beam to 6° azimuth and

Elevation

Compatibility

PMP100 Intergrated – 5.1, 5.2, 5.4, 5.8, and5.9GHz

PMP430 RM - 5.4, and 5.8GHz

PMP450 Intergrated RM



Components and options, CLIP


Features

Snaps onto PMP 100/430/450 Series RMs

Compresses beam to 18° azimuth and Elevation

9dB of Gain @ 5.4GHz for PMP100

8dB of Gain @ 5.4GHz for PMP430/4509dB of Gain @ 5.8GHz for PMP100/450

8dB of Gain @ 5.8GHz for PMP430

Compatibility

PMP100 Integrated – 5.1, 5.2, 5.4, 5.8, and

5.9GHz


PMP450 RM



Components and options, LENS


Features


Compresses beam to 18° azimuth and Elevation

Compatibility

PMP100 Integrated – 5.1, 5.2, 5.4, 5.8, and

5.9GHz


PMP450 RM



Components and options, Brackets


SMMB1

The SMMB1 provides a mounting solution for

standard radio deployments

Compatibility

PMP100/430/450 RMs

SMMB2

The SMMB2 provides a mounting solution for

heavy duty radio deployments

Compatibility

PMP100/320/400/430/450 RMs



Components and options, surge suppressors


200SSB/600SSB

The 200SSB and provides a path to ground that

protects the connected radio equipment from

near miss lightening strikes

Compatibility

200SSB CMM3/4 DC lines

600SSB ALL PMP Models



Components and options, CMM4 outdoor


Features

Provides GPS sync and “Power over Ethernet”

(PoE) to up to 8 Access Points

Supplies either 30VDC or 56VDC power

Dual back up power inputs

Connects to GPS antenna

RJ11 aux timing port for GPS slaving

Options

Supplied with our without 14 port switch

Compatibility

PMP100/320/400/430/450 AP’s



Components and options, CMM4 indoor


Features

Provides GPS sync and “Power over

Ethernet” (PoE) to up to 8 Access Points

Supples eith 30VDC or 56VDC power

Dual back up power inputs



Compatibility

PMP100/320/400/430/450 AP’s



Components and options, CMM3 outdoor


Features

Provides GPS sync and “Power over Ethernet”

(PoE) to up to 8 Access Points

Supplies either 30VDC

Managed over Ethernet



Compatibility

PMP100/450 AP’s



Components and options, uGPS


Features

Cost effect unit to provide GPS sync

Supplied by standard 30VDC

Supples GPS sync via RJ11 timing port

Compatibility

PMP 100/320/400/430/450 access points



Physical Ports – PMP450 RM


Ethernet

Ground

Lug

Sync /Default Interface Function

Ethernet

Power-over-Ethernet,Ethernetcommunications(managementand data)

Sync /Default Sync/Alignment/

Default plugport.

Ground Lug(bottom of

unit)

For groundingthe unit



Physical Ports – PMP400/430 AP


PortsRJ 45 to Supply Ethernet, Power

and Sync

RJ11 to Default, supply or pass

through Sync.

N Connector for external antenna

Grounding Lug



Physical Ports – PMP100/430 RM


Ports

RJ 45 to Supply Ethernet and Power

RJ11 to Default, pass through Sync

and give alignment tone

Optional N Connector for external

antenna on PMP100

Ethernet Sync /

Default



Physical Ports – PMP100/430 RM


Ports

RJ 45 to Supply Ethernet and Power

RJ11 to Default, pass through Sync

and give alignment tone

Grounding LugEthernet Sync /

Default



Physical Ports – PMP100 AP


Ports

RJ 45 to Supply Ethernet, Power,and Sync

RJ11 to Default, supply or pass

through

Optional N Connector for external

antenna on PMP100

Ethernet Sync /

Default



Physical Ports - CLIP


Ports




Physical Ports - LENS


Ports




Physical Ports - CMM4 outdoor


Ports

8 RJ45 Ports that Supply PoE and Sync

8 RJ45 Ports that pass through the Ethernet

from above mapped 1 to 1

RJ45 for ManagmentDual 30VDC Terminal inputs

Dual 56VDC Terminal inputs

N type connecter to GPS


Optional Etherwan Switch with 13 ports



Physical Ports - CMM4 indoor


Features

8 RJ45 Ports that Supply PoE and Sync

8 RJ45 Ports that pass through the

Ethernet from above mapped 1 to 1

RJ45 for Managment



N type connecter to GPS




Physical Ports - CMM3 outdoor


Ports

8 RJ45 10/100BaseT Ethernet powers that can

be switched to supply PoE and GPS Sync or just

Ethernet

30VDC Terminal block input

BNC for GPS input



Physical Ports - uGPS


Ports

RJ 11 GPS Timing output 1

RJ45 Power input

RJ 11 GPS Timing output 2

Timing o/p 1

Timing o/p 2Power input



Quality of service (QoS) – PMP100/400/430/450

• The PMP 100/400/430/450 has 2 levels ofpacket priority which are enable on the RM.




Traffic Shaping/Bandwidth Management



41

Traffic Shaping/Bandwidth Management

AP Bandwidth Management - Configuration Source

• Use the AP Configuration > General page, Bandwidth ConfigurationSource field:

– SM: Operator is not using the Authentication server withinWireless Manager. The AP should use information defined on theSM Configuration > QoS page.

– Authentication Server: Operator is using the authentication

server within Prizm, and the AP should use the parameters setwithin that tool.

– Radius:- If a SM is authenticated by a Radius server this can passthe bandwidth configuration to the AP

– Authentication Server + SM: Operator is using theauthentication server within Prizm. The AP will first look for abandwidth profile within Prizm; if nothing has been defined forthis SM, then the AP will use the parameters defined on the SMConfiguration>QoS page.

AP: Access Point

SM: Subscriber Module



Air Interface



43

Synchronisation - Why Synchronize APs

• Cambium modules use TDD (Time DivisionDuplexing) to alternate transmissions betweenuplink and downlink

• Cambium RMs use TDMA (Time DivisionMultiple Access) on the uplink frames toresolve contention for accessing the AP

• If one AP were to transmit while another isreceiving, the possibility for interference or de-sensing exists.

• APs must be synchronized to preventinterference and de-sensing.

AP: Access Point




44

The Need for Synchronization:

Interference Due to non-Synchronization

AP5

AP4 AP3

AP2

AP1 AP6

SM

AP1

AP2

AP3

AP4

AP5

AP6

CMM

Each AP is

transmitting

at a different

time

AP: Access Point

Synchronisation - Why

h



45

Synchronization: CMM/uGPS

Reduces System Interference

AP5

AP4 AP3

AP2

AP1 AP6

SM

AP1

AP2

AP3

AP4

AP5

AP6

CMM

Each AP is

transmitting

at the SAME

time

AP: Access Point

Synchronisation - How

h i i lf i f



Synchronisation - Self interference


One unsynchronised AP can cause self interference to all others

S h i i Wid



Synchronisation – Wide area


GPS Synchronisation

not only synchronises

one cluster but all

clusters in the area

S h i i CMM3/CMM4/ GPS



48

• With synchronization, Cambium AP modulesbegin each transmit or receive cycle at the

same time.

1. For APs in a cluster, set Downlink Data Percentand Maximum Range the same for those APs.

2. Use a Cambium the following units to control

synchronization of APs with GPS:-

uGPS

CMM3

CMM4

AP: Access Point


Synchronisation CMM3/CMM4/uGPS

U i GPS f S h i i



49

Using GPS for Synchronization

• The CMM3/4 and uGPS contains a GPS receiver that trackseight or more satellites and derives a precise clock that is usedto synchronize Cambium APs.

• This clock is used to synchronize the transmit/receive cycles ofevery module in your Cambium Wireless Broadband network.

• In addition to precise timing, the GPS receiver providesinformation on the latitude and longitude of the CMM,number of satellites being tracked, number of availablesatellites, and other information to aid in network diagnostics.

AP: Access Point


S tti Hi h P i it O ti



50

Setting High Priority Options

• The High priority option must be enabled on a per-SM basis.

– Use the SM Configuration > Quality of Service page to

enable the high priority channel. Set the Hi Priority Uplink

and Downlink Committed Information Rates (CIR).• When using the high priority channel, configure the

AP with at least 1 control slot, on the Configuration>

Radio page.


AP: Access Point



Security

Ai I t f S it DES



52

Air Interface Security - DES

Two Encryption Alternatives DES or FIPS 197AES

• DES – Digital Encryption Standard – A 56-bit key, blockcypher.

– DES provides over-the-air security for transmitted data. – DES is enabled by selecting the appropriate configuration

options in the Configuration> Security page of eachmodule.

– DES encryption and decryption is handled outside normalpacket handling and does not add to system latency oroverhead.

Ai I t f S it AES FIPS 197



53

Air Interface Security AES FIPS 197

• Highly secure form of encryption

• Uses a 128-bit key for “strong encryption”

• Optional feature on Cambium products

• PMP100/400/430 Modules must be ordered aseither AES or DES

• PMP450 can be configured with either DES or AES

• Encryption type cannot be changed after purchase

• Limitations on use outside the US

AES: Advanced Encryption Standard

Ethernet Management SecurityNetwork



54

`

`

g y

Management – Control Access to SM

• Operators can configure SM so that its IP address is notaccessible to a device attached to the SM’s Ethernet port.

• Effect? – Prevents rogue access to the SM’s management

interface.

• Network operators maintain access to the SM through the

AP.

CPE

B.B.B.3

Switch: B.B.B.2

CPE

B.B.B.4

DMZ

A.A.A.DMZ

Attempted

Management

Traffic Blocked

Ethernet Management Security - Ethernet Access Control



55

g y

on SM Configuration > Security

Select “Disable”

to block all

attempts to

manage the SM

using an

Ethernet port

connection.


Ethernet Management Security – IP Access Filtering (AP



56

g y g (

and SM)

When Enabled,

operators can specify

up to three IP

addresses that are

allowed management

access to the device.

.

AP: Access Point


Ethernet Management Security –



57

g y

Passwords for Accessing Modules

• Module-specific accounts with passwords can be setup to control access to the modules.

– Default for new modules: admin and root accounts, nopasswords.

– For upgrades from Release 7.x to Release 8, the Full Accessor Display-Only Access password (if one was specified) willbe the password for admin and root accounts.

• For better security, set up a password for root andadmin, and any other accounts added to a module.

Ethernet Management Security



58

g y

VLAN - Need For Separated Networks

• A network has several types of traffic: – User Data Traffic

– Management Traffic

– Control Traffic

• Some customers want their User Data Traffic

“separated” from others users

• A “Virtual” Local Area Network (VLAN) can

separate the different traffic types




59

VLAN - Security

• A “Virtual” Local Area Network (VLAN) canseparate the different traffic types and it is

recommended that if customers are using the

network, management traffic for allequipment is on a management VLAN

separate from the user traffic preventing

customers from access equipment settings

Ethernet Management Security –



60

VLAN Overview

• Operates at Layer 2 of the IP model• Establishes a logical group within the network.

• Regardless of initial or eventual physical

location, each computer in the VLAN canaccess the same data

• Provides flexibility in network segmentation,

simpler management, and enhanced security.




61

What Is A VLAN?

• Layer 2 (Switch) VLAN specifications: – IEEE 802.1-Standards based

– 802.1q describes the “unique identifier” for each

VLAN

– 802.1p describes different priority levels within a

VLAN

• DiffServ (Layer 3) compatibility with L2 VLANs

is possible through “mapping” of L3-to-L2

priority values

Remote Authentication Security




AP’s has the following authentication modes:-

1. Disabled—the AP requires no SMs to

authenticate.

2. Authentication Server AP PreShared Key

3. RADIUS (Remote Authentication Dial In User

Service) AAA -






The picture tothe right

shows the

configurationpage of the

PMP

100/400/430/

450


Remote Authentication Security Disabled



Remote Authentication Security - Disabled

If no authentication is enabled any SM willconnect to the AP and pass traffic.

While this is generally thought of as bad practice

additional security may be in place e.g. requiringPPPoE to authenticate.


Remote Authentication Security – Pre Shared Key



Remote Authentication Security – Pre Shared Key

AP PreShared Key

The AP acts as the authentication server to its SMs andwill make use of a user-configurable pre-sharedauthentication key.

The operator enters this key on both the AP and all SMs

desired to register to that AP. There is also an option ofleaving the AP and SMs at their default setting of usingthe “Default Key”.

Due to the nature of the authentication operation, if youwant to set a specific authentication key, then you MUSTconfigure the key on all of the SMs and reboot themBEFORE enabling the key and option on the AP.Otherwise, if you configure the AP first, none of the SMswill be able to register.


Remote Authentication Security - WM



Remote Authentication Security - WM

Wireless Manager Authentication ServerThe AP requires any SM that attempts

registration to be authenticated in Wireless

Manager before registration


Remote Authentication Security - Radius



Remote Authentication Security - Radius

Remote Authentication Dial In UserService (RADIUS)• The PMP 450 system includes support for RADIUS (Remote Authentication

Dial In User Service) protocol functionality including:

• Authentication: Allows only known SMs onto the network (blocking

“rogue” SMs), and can be configured to ensure SMs are connecting to aknown network (preventing SMs from connecting to “rogue” APs). RADIUSauthentication is used for SMs, but not used for APs.

• SM Configuration: Configures authenticated SMs with MIR (MaximumInformation Rate), High Priority, and VLAN (Virtual LAN) parameters fromthe RADIUS server when an SM registers to an AP.

• SM Accounting provides support for RADIUS accounting messages forusage-based billing. This accounting includes indications for subscribersession establishment, subscriber session disconnection, and bandwidthusage per session for each SM that connects to the AP.


Remote Authentication Security – Radius cont



Remote Authentication Security Radius cont..

Remote Authentication Dial In UserService (RADIUS)• Centralized AP and SM user name and password management: Allows AP

and SM usernames and access levels (Administrator, Installer, Technician)to be centrally administered in the RADIUS server instead of on each radio

and tracks access events (logon/logoff) for each username on the RADIUSserver. This accounting does not track and report specific configurationactions performed on radios or pull statistics such as bit counts from theradios. Such functions require an Element Management System (EMS)such as Cambium Wireless Manager. This accounting is not the ability toperform accounting functions on the subscriber/end user/customeraccount.

• Framed-IP-Address: Operators may use a RADIUS server to assignmanagement IP addressing to SM modules.




Planning

PMP450 – Network Planning



Guidelines


RF Planning - Basic Channel Planning



71

A

A

C

C B

B

RF Planning - Basic Channel Planning

Synchronization allows frequency re-use!

– 6 sectors: select three non-overlappingfrequencies for AP clusters

– 4 sectors: select two non-overlappingfrequencies for AP clusters

So what about any Guard Band Requirements?

So what about SNR Requirements?

Hang tight.... Latest Guidance is coming....!

A

B A

B

OFDM: Orthogonal Frequency Division Multiplexing

FSK: Frequency Shift Keying

RF Planning – 4 Sectors - Multiple Towers



RF Planning 4 Sectors Multiple Towers


Symbol Frequency

A 5.740 GHz

B 5.760 GHz

C 5.780 GHz

D 5.800 GHz

RF Planning – 6 Sectors - Multiple Towers



RF Planning 6 Sectors Multiple Towers


Symbol Frequency

A 5.740 GHz

B 5.760 GHz

C 5.780 GHz

RF Planning - Collocation: FSK and OFDM



74

RF Planning Collocation: FSK and OFDM

• Plan spacing between OFDM and FSK channels – 25 MHz center spacing (10 MHz guard band)

– OR –

– 3 ft (~1 m) vertical separation and 20 MHz center

spacing (5 MHz guard band)

• Frame Calculator is required for collocation.This is covered in the CPT300 course.



RF Planning - Access Point Module



75

• Selectable downlink percentage – Factory default: 75%

– AP is fully configurable, up or down

– Downlink percentage is set on the AP’sConfiguration page

• One AP can provide service for up to200 SMs

• The number of SMs that can besupported by an AP is reduced when

you enable the high priority channelon hardware-scheduled modules

Access Point

modules

or

Downlink %

Uplink %

Up to 200

served SMs

RF Planning Access Point Module

CANOP Y

AP: Access Point


RF Pl i Di t / A



76

RF Planning - Distance / Area

• To increase capacity/density, AP clusters may belocated closer together.

• A second ring of AP’s canbe added to increase atower capacity to over1Gbps

AP: Access Point


Site Survey - Identify General RequirementsStep 1



77

Performance Considerations

• What is the geographic area to be covered?• How many subscribers will be served?

• What is the terrain?

• What man-made and natural obstacles exist

(trees, buildings, bodies of water)?

• What other microwave radio services may

present a source of RF interference to your

proposed wireless network?

– Telco point-to-point relays – Competitive wireless service providers

– Pager network modules (900 MHz)

Site SurveyId if S f R di Pl

Step 3



78

Identify Structures for Radio Placement

• Tall structures such as buildings, radio towers, watertowers and hills or mountain tops are ideal sites.

• The site must have some source of power: AC, DC,Solar, and emergency backup power (UPS, generator,

batteries).• If the site is not being used as a repeater, some type

of data source must be available: Ethernet/fiber-optic cable, modem/ mux, telco line or wireless

backhaul.

Site Survey - Verify Line of Sight, cont’d S l W t V if Li f Si ht

Step 4



79

Several Ways to Verify Line of Sight

• Physically observe the path (driving or flying)

• Measure height of suspect obstructions

• Use maps or software (terrain database, mapping or

topographical)

• Aeronautical charts

• Electronic strobes, flashing mirrors or CDs

• Radio test

• Video camera on a boom

• Weather balloons (colored) or flares

• Never assume the intended path is clear of obstructions!

• See the Appendices for examples of the above-listed methods.

Site Survey – A P t ti l S f I t f

Step 6



80

Assess Potential Sources of Interference

• Check for sources of potential interference. These could beother radios, or high energy sources affecting the cables.

• If you suspect interference, sweep the area with a spectrum

analyzer. Check multiple times, at different times of the day.

• The actual performance and range of Cambium Fixed WirelessBroadband PMP equipment can be affected by interference

levels.

– In environments with heavy interference, reflectors or the LENS may

be needed to obtain optimum performance.

Site Survey - Test Proposed Radio LinksStep 7



81

S e Su ey es oposed ad o s

• The only way to find out if the radio path willwork is to try it!

• It is not good business practice to provide

service where the signal is reflected off ofobjects or passes through trees unless you

have control over new construction, trees,

repainting of RF reflective surfaces, etc.

Site Survey - Conduct Spectrum AnalysisStep 2



82

y p y

• Use a Spectrum Analyzer to sweep the proposedcoverage area to determine existing RF activity. – Cambium Remote Modules can be used as spectrum analyzers.

– Cambium Access Points can be temporarily set to operate asSMs, to conduct spectrum analysis.

– From the AP, operators can select a remote RM and conduct atimed duration spectrum analysis.

• Conduct spectrum analysis at several different timesof day for a more complete picture of the RF

environment.

AP: Access Point


Site Survey - Spectrum Analysis from the RMStep 2



83

y p y

• Decide whether to display instant or

average readings.

• Set a timed duration of 10 to 1000seconds, then press the Start TimedSpectrum Analysis button.

• You can also set the SM to perform a 10-second scan every time it boots up.

• You can set the SM to continuously scanuntil stopped or for 24 hours.


Remote Spectrum Analysis from the APStep 2



84

p y

• From the AP’s Tools> Remote Spectrum Analyzer page,select the target SM and the timed duration, thenselect the Start Remote Spectrum Analysis button.

• The AP de-registers the SM, the SM scans for the setduration, then the SM re-registers to the AP and theAP displays the bar graph.

AP: Access Point


Site Survey - Spectrum Analysis Display:Averaged Reading

Step 2



85

Averaged Reading

• Green bars show thelatest reading.

• Yellow tick marks showthe maximum reading

over time.• Red tick marks indicatestrong readings(-40 dBm or greater).

• The SpectrumAnalysis.xml

link at the bottom of thegraph will redraw thechart using xml.

Site Survey - Spectrum Analysis Display:Instantaneous Reading

Step 2



86

Instantaneous Reading

• Orange bars show theinstantaneous reading.

• Yellow tick marks showthe maximum reading

over time.• Red tick marks indicatestrong readings(-40 dBm or greater).

• The SpectrumAnalysis.xml

link at the bottom of thegraph will redraw thechart using xml.

Regulatory Considerations- DFS History Log



87

• Modules running DFS have a Home> DFS Status page,which displays an event history log.

RF Optimisation - PMP Considerations



88

p

• In densely populated areas, consider breaking your system into

multiple smaller clusters.

• If allowed and if needed, consider using a LENS or reflector forincreased range / throughput. Follow local regulations on powersettings.

• PMP 100 Series equipment, 2.4 and 5.x GHz, requires line of sight.

• For near or non line of sight:

– Use multiple clusters to achieve LOS

– Use 900 MHz equipment (note different throughput rate)

– Use PMP 400/430/450

• Verify the band and frequency to be used will be free frominterference from other RF sources. (Interference can reducerange.)

PMP: Point to Multipoint LOS: Line of Sight

OFDM: Orthogonal Frequency Division MultiplexingFSK: Frequency Shift Keying

RF Optimisation - PMP Design Considerations



89

• PMP 100 Series vs. PMP 400/430/450

– Desired range and throughput

– Line of sight or not

– Use of reflector or LENS

– Price points

– Total SMs per AP cluster

– Frequency band available – Interference tolerance

RF Optimisation - Collocation: 5.2 and 5.4 GHz



90

• Care must be taken on frequencyplanning when collocating 5.2 and 5.4GHz AP modules.

– Frequencies of 5595 MHz and below caninterfere with closely collocated 5.2 GHzmodules.

AP: Access Point

RF Optimisation - Collocation: FSK and OFDM



91

• Plan spacing between OFDM and FSK channels – 25 MHz center spacing (10 MHz guard band)

– OR –

– 3 ft (~1 m) vertical separation and 20 MHz center

spacing (5 MHz guard band)

• Frame Calculator is required for collocation.This is covered in the CPT300 course.



RF Optimisation - Access Point Module



92

• Selectable downlink percentage – Factory default: 75%

– AP is fully configurable, up or down

– Downlink percentage is set on the AP’sConfiguration page

• One AP can provide service for up to200 SMs

• The number of SMs that can besupported by an AP is reduced when

you enable the high priority channelon hardware-scheduled modules

Access Point

modules

or

Downlink %

Uplink %

Up to 200

served SMs

CANOP Y

AP: Access Point


RF Optimisation - Distance / Area



93

RF Optimisation - Distance / Area

• To increase capacity/density, AP clusters may belocated closer together.

•A second ring of AP’s canbe added to increase atower capacity to over1Gbps

AP: Access Point


Performance Considerations



94

• Evaluate the throughput requirements for your network.

• Plan re-placement of PMP100 to PMP450 equipment to

capitalize on higher throughputs where needed.

• Ensure there are no bottlenecks on the system.

• Determine the appropriate Uplink / Downlink ratio.• Establish high priority settings if necessary.

• Verify line of sight.

• Verify current RF interference levels.



Installation

Prerequisites—Before you Begin



• Study and survey of area that is being covered• Any calculations of Elevation angle for

coverage and down tilt

• Survey of structures including power, existinglighting protection, fixings needed and cable

runs


Lightening Protection



The need for power surge protection

• Structures, equipment and people must be protectedagainst power surges (typically caused by lightning) byconducting the surge current to ground via a separatepreferential solid path. The actual degree of protectionrequired depends on local conditions and applicable local

regulations. Cambium recommends that PMP 450installation is contracted to a professional installer.

Standards

• Full details of lightning protection methods andrequirements can be found in the international standardsIEC 61024-1 and IEC 61312-1, the U.S. National ElectricCode ANSI/NFPA No. 70-1984 or section 54 of the CanadianElectric Code.


Lightening Protection – Tower Installation




600SS

Externalground bar

Ground ring

Outdoor CAT5e cable: shielded

with copper-plated steel

Power

supply

Equipment building

Networkswitch

AP

Ground Cable

Tower/building ground system

Cat5e cable

• The equipment must be lower

than the top of the tower or itslightning air terminal.

• The metal tower or mast must

be correctly grounded.

• A grounding kit must be

installed at the first point of

contact between the dropcable and the tower, near the

top.

• A grounding kit must be

installed at the bottom of the

tower, near the vertical to

horizontal transition point. This

grounding kit must be bondedto the tower or tower ground

bus bar (TGB), if installed.

Lightening Protection – Wall installation



•The equipmentmust be lowerthan the top ofthe building or

its lightning airterminal.

• The buildingmust be

correctlygrounded.


External

ground bar

Ground cable

Ground ring

Outdoor CAT5e cable: shielded

with copper-plated steel

Power

Supply

Equipment building

Networkswitch

Building ground system

SM

600SS

Cat5e cable

Cable RecommendationShielded CAT5!



100

Shielded CAT5!

To minimize the possibility of performance

problems that may be caused by external

sources of interference, it is strongly

recommended that shielded CAT5 cable

(Ethernet and sync) be used in all Cambium

Fixed Wireless Broadband installations.

Cabling - Cabling Design Considerations



101

• Ethernet cables cannot exceed 100 meters (328 feet)in length.

• RJ-11 “default/override” plug cable cannot exceed

100 meters (328 feet) in length.

• GPS antenna cable cannot exceed 30 meters (100feet) in length.

• Be careful when constructing power over CAT-5

cables. A mis-wire can permanently damagemodules!

Antenna Alignment - AP Alignment



102

• Access Point alignment involves using a local or

topographical map to determine which direction one

or more APs in a cluster will be aimed to cover a

specific sector in a community.

• Depending on the angle both Azimuth and Elevationshould be considered when choosing the correct

antenna.

• Depending on the height of the AP cluster above the

local terrain, it may be required to calculate a degreeof downtilt and Elevation.

AP Alignment



103

• A compass, GPS or similar device can be used toproperly aim an Access Point.

• Once the Access Point has been positioned, lock the

module down.

• Remote Modules are then aligned to their respectiveAP.

RM Alignment



104

• Two methods can be used for aligning a RemoteModule to an Access Point:

– PMP400/430/450 monitors the power level (dBm) valueson the RM, using the Tools> RM Alignment page.

– PMP100 monitors the jitter and power level (dBm) values

on the RM, using the Tools> RM Alignment page. ( – Use the positioning tone feature. This requires a special

cable and headphones, or audio amplifier with speaker.

• You can use a PDA that is capable of supporting a

wired Ethernet connection to monitor jitter andpower level during alignment.

RM Alignment Method 1: Monitor Power Level andJitter, Alignment Page



, g g

• Use the RM alignment page for near real-time graphical

display of jitter and power level information

• From the Tools menu, select the Alignment Tool tab to access

the SM Alignment page

• Graphical, color-coded display presents clear information on

quality of jitter and power level

105

PDA: Personal Digital Assistant

SM Alignment Method 1: Monitor Power Level andJitter, Example Screens



• PMP100

• PMP400/430/450

106

, p

PDA: Personal Digital Assistant

SM Alignment Method 1: Monitor PowerLevel and Jitter, Measurements



107

Level and Jitter, Measurements

• Jitter (PMP100 only) and power level (dBm) are theparameters that can indicate the quality of the AP to RMlink.

• Power level indicates Rx sensitivity and Jitter is a measure ofsignal quality.

• Table below reflects the criteria used for the graphicaldisplay color-coding.

Good OK Bad

Color Green Orange Red

Jitter 1 – 4 5 – 8 9 – 15Power Level > -72 dBm -72 to -75 dBm < -75 dBm

Overall Link Quality Worse of Jitter or Power Level (PMP100 only)

SM Alignment Method 1: Monitor Power Level andJitter, Process Steps



108

, p

1. Point the RM in the direction of the AP.

a. PMP 100 Series: beam width is 60 x 60 degrees

b. PMP 400: beam width is 18 x 18 degrees

c. PMP 430/450: beam width is 55 x 55 degrees

2. The SM cycles through a series of steps to register to

an AP: scanning, syncing, registering, and registered.Power level and jitter will not report on the web pageuntil the unit is registered.

3. Use the SM’s Tool> Alignment Tool page to monitorlink quality, jitter and power level. Wait for a refreshafter moving the module.

(cont’d)

AP: Access Point

SM: Subscriber ModuleOFDM: Orthogonal Frequency Division Multiplexing

NOTE: PMP 100 also display jitter and power level.

RM Alignment Method 1: Monitor Power Level andJitter, Process Steps cont’d



109

p

NOTE: If using a PMP 100/430/450 Series SM with a Passiv e Ref lector , theradiated pattern will change to 6 x 6 degrees, or 17 x 17 degrees for 2.4 GHz.

If using a PMP 100/430/450 Series SM with the LENS/CLIP , the radiatedpattern will change to 18 x 18 degrees.

4. After the module has registered, slowly adjust thepositioning of the RM so that jitter is minimized andpower levels are at best settings possible. Lockdown the module when finished.

5. After alignment, perform a link test to check the

efficiency of the link.



RM Alignment Method 2: Positioning Tone



110

• Remote Modules incorporate an audiblepositioning tone to help installers find the best

location for a module.

– The pitch changes to reflect the power level

– Volume level changes to reflect jitter – PMP100

• Move the module around until you achieve the

highest pitch and volume.

• Lock the unit down.

RM Alignment Method 2: Positioning Tone, HeadsetRequirements



111

• The positioning tone feature requires a cable adaptor

• The cable adaptor allows the 6 pin RJ-11 GPS cable to

interface to a headset or amplifier (adaptor doesn’t

require active or passive devices)

• The tone output is available on pin 5 of the RJ-11connector, with pin 6 being ground.

• The headset or amplifier load should be between

pins 5 and 6.

Wiring Diagram, Alignment Tone Cable



112

1

6

5

4

3

2

1

6

5

4

3

2

8

7

8

7Not used

Audio

Ground



Configuration

Configuration of Unit - Accessing theAdministrative GUI



114

• 169.254.1.1 is the factory default IP address for all

Canopy units.

• For best performance with different customer

configurations of equipment, operators should use

different private addressing schemes for their SMs:192.168, or 172.16-32, or 10.

• The PC configuring a module must be on the same

subnet.

Configuration of Unit - Access Points



115

• Set the correct Region Code (DFS) and reboot the module.

• There are two options for completing Access Point configuration:

– The “Quick Start” menu allows you to configure the Access Point using

a minimum number of parameters.

– The “Configuration” menu pages contain all of the parameters

required to perform a complete setup of an Access Point.• Following are sample screens from an AP module, with some fields

highlighted. For complete descriptions of all screens and fields,

consult the user documentation.

Configuration of UnitAP Home> General Status Tab



116

AP: Access Point

Configuration of UnitAP Home> Session Status Page



117

AP: Access Point

Configuration of UnitAP Home> Remote Subscribers Page



118

AP: Access Point

AP Tools> Link Status Page (PMP100)



119

• Displays uplinkand downlinkstatistics for eachSM in the sector

• Available on AP

and BHM modules

AP: Access Point SM: Subscriber Module

BER: Bit Error Rate

AP Configuration> General (1)



120

1

2

3

4

5

AP: Access Point

Configuration of Unit AP> General (2)



121

1. Device Type: Can set the AP to operate as an SM.

• Useful for spectrum analysis• Reset P7 or P8 APs to SMs

2. Link Speeds: Set both sides of the link the same, otherwise the link maynot work.

3. Sync Input: Source of timing pulse:

• Power port: from a CMMmicro or CMM4• Timing port: from a CMM-2, another AP, an SM or BH

• Generate: internal sync pulse; no other AP or BH in range

4. Regional Settings: Select the location where the module will be installed,for DFS compliance. If the region is not listed, select “Other.” Save changes& reboot to “see” the other DFS fields that can be configured for the

module.

5. Webpage Auto Update: Set how frequently pages should auto-refresh.Recommend setting at 5 seconds or greater.



DFS: Dynamic Frequency Selection

Configuration of Unit AP > General (3)



122

AP: Access Point

6

7

8

9

Configuration of Unit AP > General (4)



123

6. Dynamic Rate Adapt: 1x/2x PMP100 or 1x/2x/3x/4x/6x/8x

PMP400/430/450 represent different throughput capability speeds.These will be discussed later in the course.

7. Layer 2 Discovery Destination Address: Set to LLDP if your routers

support this protocol; otherwise set to Broadcast.

8. DHCP Relay Agent: The AP can be configured to act as a DHCP relay for

SMs and CPEs underneath it. Enabling this feature allows the DHCPserver to know which SM was used to obtain an address at a given time.

9. Coordinates: Operators can enter GPS coordinates, if desired.




Configuration of Unit AP > IP Page (1)



124

1

2

AP: Access Point

IP: Internet Protocol

LAN: Local Area Network

Configuration of Unit AP > IP Page (2)



125

1. LAN 1 Configuration: Enter a non-routable IP address for the

AP, the appropriate subnet mask and Gateway IP address.

• Maintain records of all IP addresses set.

• If you forget this address, you must physically access the

module with an override plug to gain access to the

module.

• DHCP State: use a DHCP server to assign the IP address

for the AP.

2. LAN 2 Configuration: The RF Private Interface is used for AP –

SM communications. It is recommended you not change this

parameter.

AP: Access Point


Configuration of Unit > Radio Page (1)



126

AP: Access Point

Configuration of Unit AP > Radio Page (2)



127

Radio Configuration (Select field descriptions):

• Frequency Carrier : Specify the primary and up to two alternatetransmit frequencies (for use with DFS)

• Color Code: Variable to help ensure SMs register to the intended AP.Color codes must match for SMs to register. (SMs can have up to 10color codes specified, for registration to alternate APs.)

• Sector ID: Optional text field, for operator use.

• Max Range: Set to match distance of furthest SM. Normally, all APs in acluster should have the same Max Range value. Setting too high willreduce the number of data slots available.

• Downlink Data: Specify what percent of aggregate throughput shouldbe used for downlink transmissions

• Schedule Whitening: Enable when using DFS. This will spread the

transmitted signal power to avoid peaks that could trigger a “falsepositive.”

• External Gain: When using an external antenna, and DFS is enabled,enter the gain of the external antenna.

AP: Access Point



Configuration of Unit AP > Radio Page (3)



128

AP: Access Point

• Control Slots: Depending on thenumber of SMs in the sector,

enter the corresponding valuefor control slots.

• Scan Policy, Broadcast RepeatCount: Operators can setdownlink broadcasts to berepeated 0, 1 or 2 times. Default

value is 2.

Number of

Registered SMs

Suggested

Control Slots,

FSK

Suggested

Control Slots,

OFDM1 to 10 1 1 or 2

11 to 50 2 4

51 to 150 4 6

151 to 200 6 8

Control Slot Recommendations

Communications Traffic, AP to SM



129

`

• Data traffic – Cambium system acts as a Layer 2 bridge,

performing no IP address translation

• Management traffic

– Operation and maintenance of the system

Data

Management Access to the SM



130

`

Management access to the SM:• Operators can always access the SM using the AP’s

Session Status or Remote Subscribers pages.

• Optionally, operators can assign an IP address to

the SM, using the SM’s Configuration> IP page, and

set access as public or local.

Management IP Address Assignment, SM



131

`

• Two methods for operators to assignmanagement IP addresses to SMs:

– Set a static IP address

– Enable DHCP for address assignment

• Can be Internet routable or not

Data

SM Address AssignmentConfiguration> IP Page



132

• IP address: management IP

address

• Network Accessibility

• Public: access from WAN

(RF) and LAN (Ethernet)• Local: access only from LAN

(Ethernet)

• Gateway IP: usually the address

of a router behind the AP

• DHCP State: When disabled, the

management IP address is setmanually by operator. When

enabled, the SM will DHCP its

management IP address

NAT (Network Address Translation)



133

• NAT provides a means for using private (non-routable over the

internet) IP addresses behind a router, switch or firewall andtranslating any of these addresses wishing to access the public

network to one routable (public) IP address.

• NAT isolates (to a degree) a private network from the public

network.• Usually the NAT device performs port translation and

“stateful” inspection of incoming packets to confirm they are

a response to packets that were generated from the private

network.

IP Address Handling, NAT Enabled



134

`

`

• Operators can enable NAT on SMs, inwhich case the SM performs the

address translation for devices behind

the SM.Data

CPE

B.B.B.1

CPE

B.B.B.2

CPE

B.B.B.3

SM

A.A.A.1

SM Configuration>IP, with NAT



135

• The SM Configuration>IP

page, with NAT enabled, only

shows the LAN (Ethernet)management IP address.

• This address defaults to

169.254.1.1, but can be

changed by the network

operator if desired.

SM Configuration> NAT Page (1)



136

• WAN Interface: RF access

• Connection Type: can be

Static IP, DHCP or PPPoE.

• Reply to ping on WAN

interface: default value isDisabled.

• LAN Interface: Ethernet

access

SM Configuration> NAT Page (2)



137

• LAN DHCP Server: serves IP

addresses to devicesconnecting to the Ethernet

port of the SM. If enabled, set

the LAN-side DHCP

parameters.

Remote Configuration Interface:

• Enable: provide an IP

address for WAN-side

management access.

• Disable: No access to SM’s

WAN side via IP address; use

the AP’s Session Status orRemote Subscribers pages,

or access via the LAN

(Ethernet) side.

Example 1: IP Addressing, No NAT



138

`

`

• Computers connected to the SM areaccessed directly by their IP addresses,

which might have been assigned by a

DHCP server on the network.

DHCP Server

A.A.A.100

CPE

A.A.A.3

Switch: A.A.A.2

CPE

A.A.A.4

CPE

A.A.A.5

Example 2: IP Addressing, with NAT(1 of 2)



139

`

`

• Computer connected to the SM starts a connectionusing its non-Internet-routable IP address

• This non-routable IP address is translated by the SM

into an Internet-routable IP address (NAT)

WAN Interface

A.A.A.2

CPE

B.B.B.3

Switch: B.B.B.2

CPE

B.B.B.4

CPE

B.B.B.5

Example 2: IP Addressing, with NAT(2 of 2)



140

`

`

• A remote host can communicate back with thecomputer via the Internet-routable IP address,

which is translated back to the original non-

routable IP address by the SM (NAT)

• This connection must have been originated by the

computer connected to the SM

WAN Interface

A.A.A.2

CPE

B.B.B.3

Switch: B.B.B.2

CPE

B.B.B.4

CPE

B.B.B.5

Example 3: IP Addressing, with NAT, DMZ



141

`

`

• A remote host can communicate directly with adevice connected to an SM configured with a DMZ

address.

• In this case, the connection can be originated by

the remote host.

WAN Interface

A.A.A.2

CPE

B.B.B.3

Switch: B.B.B.2

CPE

B.B.B.4

DMZ

B.B.B.DMZ

Protocols Supported with NAT



142

• Basic NAT supports non-embedded protocols (such

as HTTP) and requires Application Layer Gateways

(ALGs) written to support embedded protocols like

ICMP (Internet Control Message Protocols), Ping and

FTP (File Transfer Protocol).

• Cambium PMP system’s NAT includes ALG’s for ICMP,

FTP, L2TP over IPSec and PPTP for VPNs.

L2TP: Layer 2 Tunneling Protocol VPN: Virtual Private Network

PPTP: Point to Point Tunneling Protocol

DHCP: Dynamic Host Configuration Protocol

NAT and DHCP



143

• Cambium supports the following five states of

NAT and DHCP:

– NAT Disabled - No NAT

– NAT with DHCP Client and DHCP Server – NAT with DHCP Client

– NAT with DHCP Server

– NAT with no DHCP

NAT: Network Address Translation

DHCP: Dynamic Host Configuration Protocol

SM Configuration > NAT page (1)NAT Disabled vs. Enabled



144

SM Configuration > NAT Page (2)NAT Disabled vs. Enabled



145

192.168.1

Installation Tip: Enabling NAT



146

• Enable NAT with care;

• Check IP addresses twice!

NAT Port Mapping



147

• With NAT enabled, operators can map up to 10ports to a specific IP address, for all protocols,TCP or UDP.

Protocol & Port Filtering



148

• Operators can filter (block) specific protocols and portsfrom leaving the SM and entering the network.

– Protects the network from packet loading or probingby network users.

– Provides a level of protection to users from each

other.

• Protocol and port filtering is set per SM.

– Filtering takes place as packets leave the SM headedto the air interface, except SNMP.

– If an SM is configured to filter SNMP, then SNMPpackets are blocked from entering the SM.


SNMP: Simple Network Management Protocol

Port Filtering, With / Without NAT



149

• With NAT disabled, operators can:

– Filter specific packet types and/or three user-specified ports

– Allow all protocols except those specified

– Block all protocols except those specified• With NAT enabled, the operator can filter

three user-specified ports.

• The Protocol Filtering page is found off theSM’s Configuration menu.



Protocol & Port Filtering (1)



150


Note: Release 9.5 contains tool tip pop-ups for each of the Packet Filter Types and Filter Direction fields

• With NAT disabled, operators can block PPPoE, any combination of the

IPv4 protocols listed, or ARP.

• Tool tip pop-ups provide guidance on screen as to the effects of making

these selections.

PPPoE: Blocks Ethernet

Types 8863 and 8864.

IPv4 Multicast: Blocks All

packets destined to IPv4Multicast Addresses.

Protocol & Port Filtering (2)



151

Operators can specify

up to three ports to be

blocked.

For example,

specifying ports 20

and 21 for TCP andUDP will stop users

from using FTP.

Specifying ports 161

and 162 for TCP and

UDP will block asubscriber’s access to

SNMP.

PPPoE Configuration (SM) (1 of 3)



152

• NAT must be enabled on the SM, andTranslation Bridging must be disabled on theAP.

• When PPPoe is enabled, the SM will register to

the AP then immediately attempt to connectto the PPPoE server.

• Operators must plan for the PPPoE server, setup operations to support and take advantage

of PPPoE, then configure the SM to beconsistent with their PPPoE implementation.

PPPoE: Point-to-Point Protocol over Ethernet





153

On the SM’s

Configuration>NAT page:

• Enable NAT

• For WAN Interface

Connection Type, selectPPPoE from the drop-

down list.

Now go to the SM’s

Configuration>PPPoEpage to enter the PPPoE

server information.




154

Configuration of Unit Remote Modules (RM)



155

• Remote Modules (RM) are set up using the pages off

the Configuration menu.

• Following are some sample screens for configuring a

Remote Module. For a complete description of all

screens and fields for the RM, please consult the

user documentation.

Configuration of Unit - Remote Module Home>General Status (1)



156

1

2




157

1. Device Information provides MAC address, software version,

hardware board type (P7, P8, P9, P10, P11) and connectioninformation.

2. Remote Module Stats displays various configuration andoperational data on the module, such as data rate, APregistration, SM color code and frequency, and RF

performance numbers.

Note, Frame Configuration information will be discussed later in

the course, in the Air Interface section.




158

3

4

5

Configuration of Unit Remote Module Home>General Status (4)



159

3. Region Codes indicates the region information obtained from

the AP module. The SM takes its Region Code from the AP,even if different information is entered on the SMConfiguration page.

4. Site Information is entered on the Configuration – SNMP tab.Operators can choose to not display this information to

“Guest” users.

5. Key Features Information indicates the maximumthroughput set for the module, and whether the module isCSM 130 (Advantage) or not. A maximum throughput rate of

“Unlimited” indicates a CSM 130 operating at 14 Mbps.

Configuration of Unit - Remote ModuleConfiguration> General (1)



160

1

2

3

Configuration of Unit Remote ModuleConfiguration> General (2)



161

1. Link Speeds: Selections must match what was set

for the Access Point. The Ethernet LinkEnable/Disable flag is used to activate or disable anSM’s Ethernet port.

2. Regional Settings: The SM will use the Region Codeinformation supplied by the AP, even if a differentvalue is entered here.

3. MAC Control Parameters:• SM Power Up Mode: Note, the default has been

changed to Operational Mode: when the SM boots, it

attempts registration.

MAC: Media Access Controller

Configuration of Unit – Remote ModuleConfiguration> General (3)



162

Configuration of Unit - Remote ModuleConfiguration> Radio



163

Configuration of Unit - Remote Module-Specific WebPages



164

AP Evaluation – contains information about all AccessPoints that the Subscriber Module can “see.” Useful for

understanding where a Subscriber Module is registering.

Configuration of Unit - Optional LED LightScheme (RM)



165

• Developed for the 900 MHz module, the lightscheme is now available on any SM.

• Goal is to eliminate red lights, try for green,and accept yellow.

• Set parameter on the SM’s Configuration>Unit

Settings page


Configuration of Unit - LED Lights: Revisedvs. Legacy



166

Color Revised Mode Legacy

ModeRed Not Registered

Off when registered; On when not registered to AP

Power

Yellow Medium Receive Signal Power

Blinking from slow to full-on - medium, getting stronger

Sync

Green Strong Receive Signal Power

Blinking from slow to full-on -strong, getting stronger

Session

Red Interference (Jitter)

On - high interference

Blinking - medium interference

Off - low interference

NA

Yellow Activity Activity

Green Link Link

Configuration of Unit--Web Pages/Remote

Wireless Manager




Wireless ManagerCambium Networks Wireless Manager 4.0 is recommended for

managing PMP 450 networks.

This network management software tool offers breakthrough map-

based visualization capabilities using embedded Google maps, and

combined with advanced configuration, provisioning, alerting and

reporting features you can control your entire outdoor wireless networ

Updates and Upgrades - CNUT

• Canopy Network Updater Tool (CNUT)



• Canopy Network Updater Tool (CNUT)


Troubleshooting Tip: Loss of Sync Pulse



169

Loss of sync pulse (if it occurs) is written into the Event

Log. Possible reasons:

– Bad GPS sync cable

– Use of unshielded sync cable

– GPS antenna not properly connected to CMMmicro – Physical obstructions interfering with GPS antenna (buildings,

large antenna, steep ground terrain)

– Strong transmitters (500 – 2500 MHz) in beam of GPS

antenna may overload the GPS receiver

Troubleshooting: Correct GPS AntennaInstallation



• When installing the GPS antenna, ensure that theintended antenna position:

– Provides an unobstructed view of the sky to 20ºabove the horizon

– Is not the highest object at the site

– Uses less than 100 feet (30.4 m) of cable from theCMM

20º20º 140º

1 Pmp Training Cambium

Documents

Transcript of 1 Pmp Training Cambium