Cambium PTP 450 series, User Manual

Page: 6 / 180

Contents PTP 450 User Guide
ptp-450 (July 2014)
vi
Contents
PTP 450 module essential information .................................................................................................................. ii
Safety and regulatory information ......................................................................... iv
Important safety information ......................................................................................................................... iv
Important regulatory information ................................................................................................................... v
About This Configuration and User Guide ............................................................ xiii
General information ............................................................................................................................................ xiv
Problems and warranty ........................................................................................................................................ xvi
Security advice .................................................................................................................................................. xviii
Warnings, cautions and notes .............................................................................................................................. xix
Chapter 1: Product Description ......................................................................... 1-1
Overview of PTP 450 .......................................................................................................................................... 1-2
Purpose ........................................................................................................................................................ 1-2
Key Features ................................................................................................................................................ 1-2
Typical deployment ..................................................................................................................................... 1-3
System components ..................................................................................................................................... 1-3
Backhaul Master (BHM) ..................................................................................................................................... 1-5
Network connection..................................................................................................................................... 1-8
BHM power supply ..................................................................................................................................... 1-8
Further reading on the BHM ....................................................................................................................... 1-8
Backhaul Slave (BHS) ........................................................................................................................................ 1-9
Mounting brackets ....................................................................................................................................... 1-9
Network connection..................................................................................................................................... 1-9
BHS power supply ....................................................................................................................................... 1-9
Further reading on the BHS ......................................................................................................................... 1-9
Cabling and lightning protection ....................................................................................................................... 1-13
PTP and lightning protection ..................................................................................................................... 1-13
Outdoor connections .................................................................................................................................. 1-13
Wireless operation ............................................................................................................................................ 1-14
Time division duplexing ............................................................................................................................ 1-14
OFDM and channel bandwidth .................................................................................................................. 1-15
Link operation – Dynamic Rate Adapt ...................................................................................................... 1-15
Adaptive modulation ................................................................................................................................. 1-20
MIMO ........................................................................................................................................................ 1-20
Cyclic Prefix .............................................................................................................................................. 1-20
Encryption ................................................................................................................................................. 1-20
Further reading on wireless operation ....................................................................................................... 1-20
System management ......................................................................................................................................... 1-21
Management agent .................................................................................................................................... 1-21
Web server ................................................................................................................................................. 1-21
SNMP ........................................................................................................................................................ 1-24