Cambium Networks PMP 450 AP Planning And Installation Guide

Contents
Page
iv
Link planning .................................................................................................................................................. 3-33
Range and obstacles .............................................................................................................................. 3-33
Path loss ................................................................................................................................................... 3-33
Calculating Link Loss ............................................................................................................................. 3-34
Calculating Rx Signal Level ................................................................................................................... 3-34
Calculating Fade Margin ........................................................................................................................ 3-35
Adaptive modulation ............................................................................................................................. 3-35
Planning for connectorized units ................................................................................................................. 3-36
When to install connectorized units .................................................................................................... 3-36
Choosing external antennas ................................................................................................................. 3-36
Calculating RF cable length (5.8 GHz FCC only)............................................................................... 3-36
Data network planning .................................................................................................................................. 3-38
Understanding addresses ...................................................................................................................... 3-38
Dynamic or static addressing ............................................................................................................... 3-38
DNS Client ............................................................................................................................................... 3-38
Network Address Translation (NAT) ................................................................................................... 3-39
Developing an IP addressing scheme ................................................................................................. 3-40
Address Resolution Protocol ................................................................................................................ 3-40
Allocating subnets .................................................................................................................................. 3-40
Selecting non-routable IP addresses ................................................................................................... 3-41
Translation bridging ............................................................................................................................... 3-41
Engineering VLANs ................................................................................................................................ 3-42
Network management planning .................................................................................................................. 3-45
Planning for SNMP operation ............................................................................................................... 3-45
Enabling SNMP........................................................................................................................................ 3-45
Security planning ........................................................................................................................................... 3-46
Isolating AP/BHM from the Internet .................................................................................................... 3-46
Encrypting radio transmissions ............................................................................................................ 3-46
Planning for HTTPS operation .............................................................................................................. 3-47
Planning for SNMPv3 operation ........................................................................................................... 3-47
Managing module access by passwords ............................................................................................ 3-48
Planning for RADIUS operation ............................................................................................................ 3-49
Filtering protocols and ports ................................................................................................................ 3-49
Encrypting downlink broadcasts ......................................................................................................... 3-52
Isolating SMs in PMP .............................................................................................................................. 3-53
Filtering management through Ethernet ............................................................................................ 3-53
Allowing management from only specified IP addresses ................................................................ 3-53
Configuring management IP by DHCP ................................................................................................ 3-54
Controlling PPPoE PADI Downlink Forwarding ................................................................................. 3-54
Remote AP Deployment ............................................................................................................................... 3-55
Remote AP (RAP) Performance ........................................................................................................... 3-56
Example Use Case for RF Obstructions .............................................................................................. 3-56
Example Use Case for Passing Sync.................................................................................................... 3-57
Physical Connections Involving the Remote AP ................................................................................ 3-58
Passing Sync signal ................................................................................................................................ 3-60
Wiring to Extend Network Sync .......................................................................................................... 3-63

Cambium Networks PMP 450 AP Specifications

General

Brand	Cambium Networks
Model	PMP 450 AP
Category	Wireless Access Point
Language	English