User Manual
Table Of Contents
- Cambium
- PMP 450 Planning Guide
- Accuracy
- Copyrights
- 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: solutions@cambiumnetworks.com
- Email support: support@cambiumnetworks.com
- Cambium Networks
- 3800 Golf Road, Suite 360
- Rolling Meadows, IL 60008
- Chapter 1: Product description
- Chapter 2: 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
- Planning for RADIUS integration
- Planning for SNMP security
- Ordering components
- Chapter 3: 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 4: Reference information
PMP 450 Planning Guide Site planning
pmp-0047 (December 2012)
2-11
Site planning
This section describes factors to be taken into account when choosing sites for the AP or SM, power supplies,
CMM4 (if applicable) and GPS antenna (if applicable).
AP or SM site selection
When selecting a site for the AP or SM, consider the following factors:
• Height and location to ensure that people are kept away from the antenna; see Calculated distances and power
compliance margins on page 4-11.
• Height and location to achieve the best radio path.
• Ability to meet the requirements specified in Grounding and lightning protection on page 2-31.
• Aesthetics and planning permission issues.
• Cable lengths; see Maximum cable lengths on page 2-11.
• The effect of strong winds on the installation; see Wind loading on page 2-11.
Power supply site selection
When selecting a site for the AP or SM power supply, consider the following factors:
• Indoor location with no possibility of condensation.
• Availability of a mains electricity supply.
• Accessibility for viewing status indicator LED and connecting Ethernet cables.
• Cable lengths; see Maximum cable lengths on page 2-11.
Maximum cable lengths
When installing PMP 450 Series APs or SMs, the maximum permitted length of the copper Ethernet interface cable
is 100m (330 ft) from AP/SM to their associated power supplies or CMM4.
Wind loading
Ensure that the site will not be prone to excessive wind loading.
Antennas and equipment mounted on towers or buildings will subject the mounting structure to significant lateral
forces when there is appreciable wind. Antennas are normally specified by the amount of force (in pounds) for
specific wind strengths. The magnitude of the force depends on both the wind strength and size of the antenna.
Calculation of lateral force (metric)
The magnitude of the lateral force can be estimated from: