PTP 250 User Guide
phn-2510_002v000 (Mar 2012)
iii
Site planning ............................................................................................................................. 2-6
ODU site selection ............................................................................................................... 2-6
Power supply selection ........................................................................................................ 2-6
Maximum cable lengths ...................................................................................................... 2-7
Wind loading ....................................................................................................................... 2-7
Link planning .......................................................................................................................... 2-10
PTP LINKPlanner .............................................................................................................. 2-10
Range and obstacles ......................................................................................................... 2-10
Path loss considerations .................................................................................................... 2-11
Planning for connectorized units ............................................................................................ 2-12
When to install connectorized units .................................................................................. 2-12
Choosing external antennas .............................................................................................. 2-12
Calculating maximum power level for connectorized units .............................................. 2-13
Calculating RF cable length (5.8 GHz FCC only) .............................................................. 2-14
Grounding and lightning protection ........................................................................................ 2-15
The need for power surge protection ................................................................................ 2-15
Standards .......................................................................................................................... 2-15
Lightning protection zones ............................................................................................... 2-16
General protection requirements ...................................................................................... 2-17
Protection requirements for a mast or tower installation ................................................. 2-18
Protection requirements for a wall installation ................................................................ 2-20
Protection requirements on a high rise building .............................................................. 2-21
Data network planning ............................................................................................................ 2-23
IP interface ........................................................................................................................ 2-23
Back to back links ............................................................................................................. 2-23
‘Green Ethernet’ switches ................................................................................................. 2-23
Ordering components.............................................................................................................. 2-24
PTP 250 kits ...................................................................................................................... 2-24
Other standard components .............................................................................................. 2-27
Components required with connectorized ODUs .............................................................. 2-29
Alternative and additional components ............................................................................ 2-34
Chapter 3:
Legal information ..................................................................................... 3-1
Cambium Networks end user license agreement ..................................................................... 3-2
Acceptance of this agreement ............................................................................................. 3-2
Definitions ........................................................................................................................... 3-2
Grant of license ................................................................................................................... 3-2
Conditions of use ................................................................................................................. 3-3
Summary of Contents for PTP 250
Page 1: ...Cambium PTP 250 User Guide System Release 250 02 01 ...
Page 8: ...Safety and regulatory information VI phn 2510_002v000 Mar 2012 ...
Page 20: ...List of Tables xii phn 2510_002v000 Mar 2012 ...
Page 58: ...System management Chapter 1 Product description 1 30 phn 2510_002v000 Mar 2012 ...
Page 104: ...Limit of liability Chapter 3 Legal information 3 12 phn 2510_002v000 Mar 2012 ...
Page 122: ...Notifications Chapter 4 Reference information 4 18 phn 2510_002v000 Mar 2012 ...
Page 152: ...Installing the PoE power supply Chapter 5 Installation 5 30 phn 2510_002v000 Mar 2012 ...