Cambium PTP 250 Bedienungsanleitung

Cambium

PTP 250

User Guide

System Release 250-02-13

phn-2510_004v000 (Feb 2013)

Accuracy

While reasonable efforts have been made to assure the accuracy of this document, Cambium

Networks assumes no liability resulting from any inaccuracies or omissions in this document, or

from use of the information obtained herein. Cambium reserves the right to make changes to

any products described herein to improve reliability, function, or design, and reserves the right

to revise this document and to make changes from time to time in content hereof with no

obligation to notify any person of revisions or changes. Cambium does not assume any liability

arising out of the application or use of any product, software, or circuit described herein;

neither does it convey license under its patent rights or the rights of others. It is possible that

this publication may contain references to, or information about Cambium products (machines

and programs), programming, or services that are not announced in your country. Such

references or information must not be construed to mean that Cambium intends to announce

such Cambium products, programming, or services in your country.

Copyrights

This document, Cambium products, and 3rd Party software products described in this document

may include or describe copyrighted Cambium and other 3rd Party supplied computer programs

stored in semiconductor memories or other media. Laws in the United States and other

countries preserve for Cambium, its licensors, and other 3rd Party supplied software certain

exclusive rights for copyrighted material, including the exclusive right to copy, reproduce in any

form, distribute and make derivative works of the copyrighted material. Accordingly, any

copyrighted material of Cambium, its licensors, or the 3rd Party software supplied material

contained in the Cambium products described in this document may not be copied, reproduced,

reverse engineered, distributed, merged or modified in any manner without the express written

permission of Cambium. Furthermore, the purchase of Cambium products shall not be deemed

to grant either directly or by implication, estoppel, or otherwise, any license under the

copyrights, patents or patent applications of Cambium or other 3rd Party supplied software,

except for the normal non-exclusive, royalty free license to use that arises by operation of law in

the sale of a product.

Restrictions

Software and documentation are copyrighted materials. Making unauthorized copies is

prohibited by law. No part of the software or documentation may be reproduced, transmitted,

transcribed, stored in a retrieval system, or translated into any language or computer language,

in any form or by any means, without prior written permission of Cambium.

License Agreements

The software described in this document is the property of Cambium and its licensors. It is

furnished by express license agreement only and may be used only in accordance with the

terms of such an agreement.

High Risk Materials

Components, units, or 3rd Party products used in the product described herein are NOT fault-

tolerant and are NOT designed, manufactured, or intended for use as on-line control equipment

in the following hazardous environments requiring fail-safe controls: the operation of Nuclear

Facilities, Aircraft Navigation or Aircraft Communication Systems, Air Traffic Control, Life

Support, or Weapons Systems (High Risk Activities). Cambium and its supplier(s) specifically

disclaim any expressed or implied warranty of fitness for such High Risk Activities.

PTP 250 User Guide

phn-2510_004v000 (Feb 2013) I

Safety and regulatory information

This section describes important safety and regulatory guidelines that must be observed by

personnel installing or operating PTP 250 equipment.

Important safety information

To prevent loss of life or physical injury, observe the safety guidelines in this

section.

Power lines

Exercise extreme care when working near power lines.

Working at heights

Exercise extreme care when working at heights.

Grounding and protective earth

The Outdoor Unit (ODU) must be properly grounded to protect against lightning. It is the

user’s responsibility to install the equipment in accordance with national regulations. In

the USA, follow Section 810 of the

National Electric Code, ANSI/NFPA No.70-1984

(USA).

In Canada, follow Section 54 of the

Canadian Electrical Code

. These codes describe

correct installation procedures for grounding the outdoor unit, mast, lead-in wire and

discharge unit, size of grounding conductors and connection requirements for grounding

electrodes. Other regulations may apply in different countries and therefore it is

recommended that installation of the outdoor unit be contracted to a professional installer.

Using the correct power supply

Always use the Cambium Power over Ethernet injector unit (PoE power supply) or

Powered Indoor Unit (PIDU Plus) to power the ODU. Failure to use the correct power

supply could result in equipment damage and will invalidate the safety certification and

may cause a safety hazard.

Safety and regulatory information

II phn-2510_004v000 (Feb 2013)

Alternative DC supply

If the PTP 250 is to be powered from a DC supply (either as the primary power source or

as a backup to the AC supply), the DC supply must be input to the ODU via a PIDU (not a

PoE power supply). The DC supply must be connected to the PIDU DC IN terminals. The

DC supply must comply with the following requirements:

•The voltage and polarity is correct and is applied to the correct terminals in the PIDU.

•The power source is rated as Safety Extra Low Voltage (SELV).

•The power source is rated to supply at least 1 A continuously.

•The power source cannot provide more than the Energy Hazard Limit as defined by

IEC/EN/UL60950-1, Clause 2.5, Limited Power (The Energy Hazard Limit is 240VA).

Powering down before servicing

Always power down and unplug the equipment before servicing.

Lightning protection unit (LPU)

Do not remove the LPU printed circuit board when the LPU is connected to the power

supply, as high voltages are present.

Drop cable tester

The drop cable tester must NEVER be used at the ODU end connected to power from the

PoE power supply or PIDU. It must only be used (with a multimeter) to test a cable with

an ODU attached, not a cable with a PoE power supply or PIDU attached. This is because

the PoE power supply voltage exceeds the limit allowed in some countries for safe

handling in wet conditions and therefore may create a safety hazard.

Primary disconnect device

The main power supply is the primary disconnect device.

External cables

Safety may be compromised if outdoor rated cables are not used for connections that will

be exposed to the outdoor environment.

RF exposure near the antenna

Strong radio frequency (RF) fields will be present close to the antenna when the

transmitter is on. Always turn off the power to the ODU before undertaking maintenance

activities in front of the antenna.

PTP 250 User Guide

phn-2510_004v000 (Feb 2013) III

Minimum separation distances

Install the ODUs so as to provide and maintain the minimum separation distances from all

persons.

The minimum separation distances for each frequency variant are specified in Calculated

distances and power compliance margins on page 4-10.

Important regulatory information

The PTP 250 product is certified as an unlicensed device in frequency bands where it is not

allowed to cause interference to licensed services (called primary users of the bands).

Radar avoidance

In countries where radar systems are the primary band users, the regulators have

mandated special requirements to protect these systems from interference caused by

unlicensed devices. Unlicensed devices must detect and avoid co-channel operation with

radar systems.

The PTP 250 provides detect and avoid functionality for countries and frequency bands

requiring protection for radar systems.

Installers and users must meet all local regulatory requirements for radar detection. To

meet these requirements, users must set the correct country code during commissioning of

the the PTP 250. If this is not done, installers and users may be liable to civil and criminal

penalties.

Contact the Cambium helpdesk if more guidance is required.

Safety and regulatory information

IV phn-2510_004v000 (Feb 2013)

USA and Canada specific information

The USA Federal Communications Commission (FCC) has asked manufacturers to

implement special features to prevent interference to weather radar systems that operate

in the band 5600 MHz to 5650 MHz.These features must be implemented in all products

able to operate outdoors in the band 5470 MHz to 5725 MHz.

Manufacturers must ensure that such radio products cannot be configured to operate

outside of FCC rules; specifically it must not be possible to disable or modify the radar

protection functions that have been demonstrated to the FCC.

In order to comply with these FCC requirements, Cambium supplies variants of the

PTP 250 for operation in the USA or Canada. These variants are only allowed to operate

in accordance with FCC/IC rules. In particular, operation of radio channels overlapping the

band 5600-5650 MHz is not allowed and these channels are permanently barred.

In addition, other channels may also need to be barred when operating close to weather

radar installations.

To ensure compliance with FCC rules (KDB 443999: Interim Plans to Approve UNII

Devices Operating in the 5470 - 5725 MHz Band with Radar Detection and DFS

Capabilities), follow the instructions in Avoidance of weather radars (USA only) on page

2-5.

Other variants of the PTP 250 are available for use in the rest of the world, but these

variants are not supplied to the USA or Canada except under strict controls, when they

are needed for export and deployment outside the USA or Canada.

Specific expertise and training required for professional installers

To ensure that the PTP 250 is installed and configured in compliance with the

requirements of Industry Canada and the FCC, installers must have the radio engineering

skills and training described in this section. This is particularly important when installing

and configuring a PTP 250 system for operation in the 5.4 GHz UNII band.

Avoidance of weather radars

The installer must be familiar with the requirements in FCC KDB 443999. Essentially, the

installer must be able to:

•Access the FCC data base of weather radar location and channel frequencies.

•Use this information to correctly configure the product (using the GUI) to avoid

operation on channels that should be barred according to the guidelines that are

contained in the KDB and explained in detail in this user guide.

PTP 250 User Guide

phn-2510_004v000 (Feb 2013) V

External antennas

When using a connectorized version of the product (as compared to the version with an

integrated antenna), the conducted transmit power must be reduced to ensure the

regulatory limit on transmitter EIRP is not exceeded. The installer must have an

understanding of how to compute the effective antenna gain from the actual antenna gain

and the feeder cable losses.

The range of permissible values for maximum antenna gain and feeder cable losses are

included in the user guide together with a sample calculation. The product GUI

automatically applies the correct conducted power limit to ensure that it is not possible for

the installation to exceed the EIRP limit, when the appropriate values for antenna gain and

feeder cable losses are entered into the GUI.

Ethernet networking skills

The installer must have the ability to configure IP addressing on a PC and to set up and

control products using a web browser interface.

Lightning protection

To protect outdoor radio installations from the impact of lightning strikes, the installer

must be familiar with the normal procedures for site selection, bonding and grounding.

Installation guidelines for the PTP 250 can be found in Chapter 2: Planning considerations

and Chapter 5: Installation.

Training

The installer needs to have basic competence in radio and IP network installation. The

specific requirements applicable to the PTP 250 should be gained by reading Chapter 5:

Installationand Chapter 6: Configuration and alignment and by performing sample set ups

at base workshop before live deployments.

Safety and regulatory information

VI phn-2510_004v000 (Feb 2013)

PTP 250 User Guide

phn-2510_004v000 (Feb 2013) i

Contents

Safety and regulatory information....................................................................................I

About This User Guide ..................................................................................................... 1

General information ....................................................................................................................... 2

Version information ................................................................................................................. 2

Contacting Cambium Networks............................................................................................... 2

Purpose..................................................................................................................................... 3

Problems and warranty.................................................................................................................. 4

Security advice............................................................................................................................... 6

Warnings, cautions, and notes....................................................................................................... 7

Caring for the environment ........................................................................................................... 8

Chapter 1: Product description .................................................................................. 1-1

Overview of the PTP 250............................................................................................................. 1-2

Purpose.................................................................................................................................. 1-2

Key features .......................................................................................................................... 1-2

Radio bands........................................................................................................................... 1-3

Typical deployment ............................................................................................................... 1-3

System components .............................................................................................................. 1-4

Product variants.................................................................................................................... 1-4

Outdoor unit (ODU) .................................................................................................................... 1-5

ODU description.................................................................................................................... 1-5

ODU interfaces...................................................................................................................... 1-6

Connectorized ODU antenna interfaces............................................................................... 1-7

Mounting brackets ................................................................................................................ 1-7

Network connection .............................................................................................................. 1-7

Further reading on the ODU ................................................................................................ 1-8

Power over Ethernet injector (PoE power supply)..................................................................... 1-9

PoE power supply description .............................................................................................. 1-9

PoE power supply interfaces .............................................................................................. 1-10

Further reading on the PoE power supply ......................................................................... 1-11

Cabling and lightning protection.............................................................................................. 1-12

PTP and lightning protection.............................................................................................. 1-12

Contents

ii phn-2510_004v000 (Feb 2013)

Outdoor connections........................................................................................................... 1-12

Indoor connections ............................................................................................................. 1-13

Cable grounding kits........................................................................................................... 1-13

Lightning protection units (LPUs)...................................................................................... 1-14

Further reading on cabling and lightning protection ........................................................ 1-15

Wireless operation .................................................................................................................... 1-16

Wireless Transmissions ...................................................................................................... 1-16

Spectrum management....................................................................................................... 1-16

Adaptive modulation ........................................................................................................... 1-16

MIMO .................................................................................................................................. 1-17

Radar avoidance ................................................................................................................. 1-18

Country of operation........................................................................................................... 1-19

Using frequency planning................................................................................................... 1-20

Further reading on wireless operation .............................................................................. 1-21

Ethernet bridging...................................................................................................................... 1-22

Customer network .............................................................................................................. 1-22

Management network ......................................................................................................... 1-23

Back-to-back links ............................................................................................................... 1-23

Protocol model .................................................................................................................... 1-24

Further reading on Ethernet bridging ............................................................................... 1-25

System management................................................................................................................. 1-26

Management agent ............................................................................................................. 1-26

Web server .......................................................................................................................... 1-26

Web pages........................................................................................................................... 1-26

Link and node management modes.................................................................................... 1-27

SNMP .................................................................................................................................. 1-27

Simple Network Time Protocol (SNTP).............................................................................. 1-27

Encryption........................................................................................................................... 1-28

Firmware upgrade .............................................................................................................. 1-28

Reset to factory defaults..................................................................................................... 1-29

Further reading on system management ........................................................................... 1-29

Chapter 2: Planning considerations ........................................................................... 2-1

Regulatory planning.................................................................................................................... 2-2

Regulatory limits................................................................................................................... 2-2

Conforming to the limits....................................................................................................... 2-3

Available spectrum ............................................................................................................... 2-4

Radar detection..................................................................................................................... 2-4

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