User Guide
Table Of Contents
- Cambium
- PMP 450 Planning Guide
- Accuracy
- Copyrights
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- High Risk Materials
- Safety and regulatory information
- Contents
- List of Figures
- List of Tables
- About This Planning Guide
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- 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
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- Grant of license
- Conditions of use
- Title and restrictions
- Confidentiality
- Right to use Cambium’s name
- Transfer
- Updates
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- U.S. government
- Term of license
- Governing law
- Assignment
- Survival of provisions
- Entire agreement
- Third party software
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- Limit of liability
- Cambium Networks end user license agreement
- Chapter 3: Reference information
PMP 450 Planning Guide
General protection requirements
To adequately protect a PMP 450 installation, both ground bonding and transient voltage surge suppression
are required.
Basic requirements
The following basic protection requirements must be implemented:
• The equipment must be in ‘Zone B’ (see Lightning protection zones on page 1-109).
• The AP must be grounded to the supporting structure.
• A surge suppression unit (600SS) must be installed close to the SM.
• The distance between the SM and 600SS should be kept to a minimum.
• The drop cable length between the SM and 600SS must be less than 600 mm.
• An surge suppression unit (200SS) must be installed within 600 mm (24 in) of the point at which the power
cable enters the building or equipment room.
• The drop cable must be grounded at the building entry point.
• The drop cable must not be laid alongside a lightning air terminal.
• All grounding cables must be a minimum size of 10 mm
2
csa (8AWG), preferably 16 mm
2
csa (6AWG), or
25 mm
2
csa (4AWG).
Grounding cable requirements
When routing, fastening and connecting grounding cables, the following requirements must be implemented:
• Grounding conductors must be run as short, straight, and smoothly as possible, with the fewest possible
number of bends and curves.
• Grounding cables must not be installed with drip loops.
• All bends must have a minimum radius of 203 mm (8 in) and a minimum angle of 90° (Figure 23). A
diagonal run is preferable to a bend, even though it does not follow the contour or run parallel to the
supporting structure.
• All bends, curves and connections must be routed towards the grounding electrode system, ground rod, or
ground bar.
• Grounding conductors must be securely fastened.
• Braided grounding conductors must not be used.
• Approved bonding techniques must be used for the connection of dissimilar metals.
Figure 23 Grounding cable minimum bend radius and angle
Error! No topic specified.
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pmp-0047 (March 2014)