Cambium Networks PMP/PTP 450i Series User Manual

Contents
Page iv
Conforming to the limits............................................................................................................. 3-2
Available spectrum ..................................................................................................................... 3-2
Analyzing the RF Environment .................................................................................................. 3-2
Channel bandwidth ..................................................................................................................... 3-2
Anticipating Reflection of Radio Waves .................................................................................... 3-3
Obstructions in the Fresnel Zone ............................................................................................... 3-3
Planning for co-location .............................................................................................................. 3-3
Multiple OFDM Access Point Clusters ....................................................................................... 3-4
Link planning ...................................................................................................................................... 3-6
Range and obstacles ................................................................................................................... 3-6
Path loss ....................................................................................................................................... 3-6
Calculating Link Loss .................................................................................................................. 3-7
Calculating Rx Signal Level ........................................................................................................ 3-7
Calculating Fade Margin ............................................................................................................. 3-8
Adaptive modulation .................................................................................................................. 3-8
Planning for connectorized units ...................................................................................................... 3-9
When to install connectorized units .......................................................................................... 3-9
Choosing external antennas ...................................................................................................... 3-9
Calculating RF cable length (5.8 GHz FCC only) ....................................................................... 3-9
Data network planning .................................................................................................................... 3-11
Understanding addresses......................................................................................................... 3-11
Dynamic or static addressing ................................................................................................... 3-11
DNS Client ..................................................................................................................................3-12
Network Address Translation (NAT) ....................................................................................... 3-12
Developing an IP addressing scheme ..................................................................................... 3-13
Address Resolution Protocol .................................................................................................... 3-13
Allocating subnets ..................................................................................................................... 3-14
Selecting non-routable IP addresses ....................................................................................... 3-14
Translation bridging .................................................................................................................. 3-15
Engineering VLANs ................................................................................................................... 3-15
Network management planning ..................................................................................................... 3-19
Planning for SNMP operation .................................................................................................. 3-19
Enabling SNMP ......................................................................................................................... 3-19
Security planning ............................................................................................................................. 3-20

Cambium Networks PMP/PTP 450i Series Specifications

General

Brand	Cambium Networks
Model	PMP/PTP 450i Series
Category	Wireless Access Point
Language	English