User's Manual
Table Of Contents
- Cambium
- PMP 450 Planning Guide
- Accuracy
- Copyrights
- This document, Cambium products, and 3rd Party Software products described in this document may include or describe copyrighted Cambium and other 3rd Party supplied computer programs stored in semiconductor memories or other media. Laws in the United ...
- Restrictions
- License Agreements
- High Risk Materials
- Safety and regulatory information
- Contents
- List of Figures
- List of Tables
- About This Planning Guide
- PMP support website: http://www.cambiumnetworks.com/support
- Cambium main website: http://www.cambiumnetworks.com/
- Sales enquiries: sales@cambiumnetworks.com
- Email support: support@cambiumnetworks.com
- Telephone numbers:
- For full list of Cambium support telephone numbers, see:
- http://www.cambiumnetworks.com/support/contact-support
- Address:
- Chapter 1: Planning considerations
- Regulatory planning
- Network migration planning
- Site planning
- Link planning
- Analyzing the RF Environment
- Selecting Sites for Network Elements
- Diagramming Network Layouts
- Grounding and lightning protection
- Configuration options for TDD synchronization
- Data network planning
- Security planning
- Isolating APs from the Internet
- Managing module access by passwords
- Filtering protocols and ports
- Port Lockdown
- Isolating SMs
- Filtering management through Ethernet
- Allowing management from only specified IP addresses
- Configuring management IP by DHCP
- Planning for airlink security
- Planning for RF Telnet Access Control
- Forwarding Downlink PPPoE PADI packets
- Planning for RADIUS integration
- Planning for SNMP security
- Ordering components
- Chapter 2: Legal information
- Cambium Networks end user license agreement
- Acceptance of this agreement
- Definitions
- Grant of license
- Conditions of use
- Title and restrictions
- Confidentiality
- Right to use Cambium’s name
- Transfer
- Updates
- Maintenance
- Disclaimer
- Limitation of liability
- U.S. government
- Term of license
- Governing law
- Assignment
- Survival of provisions
- Entire agreement
- Third party software
- Hardware warranty
- Limit of liability
- Cambium Networks end user license agreement
- Chapter 3: Reference information
PMP 450 Planning Guide
Overview of PMP 450
This section introduces the key features, typical uses, product variants and components of the PMP 450.
Purpose
Cambium PMP 450 Series networks are designed for wireless point-to-multipoint links in the unlicensed 2.4 GHz,
3.5GHz, 5.4 GHz and 5.8 GHz bands. Users must ensure that the PMP 450 Series complies with local operating
regulations.
The PMP 450 Series adds dramatically increased network throughput and capacity. The PMP 450 Series enables
network operators to grow their business by offering more capacity for data, voice and video applications.
Key features
The Cambium PMP 450 Series offers the following benefits:
• Cambium’s highest performing point-to-multipoint solution, with up to 90 Mbps usable throughput
• State-of-the-art MIMO (Multi-In Multi-Out) technology
• Better spectral efficiency than other MIMO alternatives
• Efficient GPS synchronized, scheduled TDD operation for easy Access Point site deployment and performance
that is consistent regardless of subscriber loading
• A range of cost-effective subscriber device solutions to meet the business case of any network application
• MIMO Matrix B: This technique provides for the ability to double the throughput of a radio transmission under
proper RF conditions. Different data streams are transmitted simultaneously on two different antennas.
nLOS benefits and limitations
In addition to providing LOS (Line-Of-Sight) connectivity, use of OFDM technology can provide nLOS (near Line-
Of-Sight) connectivity and sometimes NLOS (Non-Line-Of-Sight) connectivity:
• LOS: the installer can see the AP from the SM and the first Fresnel zone is clear.
• nLOS: the installer can see the AP from the SM, but a portion of the first Fresnel zone is blocked.
• NLOS: the installer cannot see the AP from the SM and a portion or even much of the first Fresnel zone is
blocked, but subsequent Fresnel zones are open.
pmp-0047 (March 2014)
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