Radius PDR221 Bedienungsanleitung
Packet Data Radio
Installation & Operation Manual
PDR221
RADIUS
RADIO NETWORK TECHNOLOGY
RADIUS
Product Description
PDR221
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Contents
1General ________________________________________________________________ 4
1.1 Document History________________________________________________________________ 4
1.1.1 RADIUS Contact Information _____________________________________________________________4
2Find Your Way in The Manual ______________________________________________ 5
3Introduction_____________________________________________________________ 6
3.1 Typical Application Areas__________________________________________________________ 7
3.1.1 Examples of Typical Application Networks ___________________________________________________8
4Technical Specifications _________________________________________________ 11
5Quick Start Guide _______________________________________________________ 12
6Glossary of Terms ______________________________________________________ 13
6.1 dBm to W Conversion Table ______________________________________________________ 14
7The PDR221 Radio Transceiver Functionality ________________________________ 15
7.1 PDR221 Operation Blocks ________________________________________________________ 15
7.2 FEC - Forward Error Correction____________________________________________________ 15
7.3 CRC – Cyclic Redundancy Checksum ______________________________________________ 15
7.4 Radio Receiver Sensitivity ________________________________________________________ 16
7.4.1 PDR221 Receiver Sensitivity ____________________________________________________________16
7.5 Radio Transmitter Power _________________________________________________________ 16
7.6 RSSI – Received Signal Strength Indication __________________________________________ 17
7.7 Differences between PDR221 Models _______________________________________________ 18
7.8 Communication ________________________________________________________________ 19
7.9 Peer-to-Peer___________________________________________________________________ 21
8Operating the PDR221 ___________________________________________________ 22
8.1 LED Indicators and Connectors ____________________________________________________ 22
8.2 Collision Avoidance _____________________________________________________________ 23
8.3 Remote frequency change ________________________________________________________ 25
8.4 Remote Tx power change ________________________________________________________ 25
8.5 Multiple RTU addressing to one radio _______________________________________________ 25
8.6 Radio Link Test ________________________________________________________________ 25
8.7 Split transmitting and receiving frequencies __________________________________________ 26
8.8 Split Tx Uplink Frequency ________________________________________________________ 27
8.9 Repeating Alternative Systems ____________________________________________________ 27
9Installation_____________________________________________________________ 28
9.1 General ______________________________________________________________________ 28
9.2 Power Supply __________________________________________________________________ 28
9.2.1 Recommended minimum demands: _______________________________________________________28
9.3 Battery Power Supply ___________________________________________________________ 29
9.4 Serial Interface _________________________________________________________________ 30
9.4.1 PDR221 Serial Interface Characteristics ___________________________________________________30
9.4.2 Serial Cable Configurations _____________________________________________________________31
9.4.3 EOM – End of Message - Detection _______________________________________________________33
9.5 Cabinet Mounting _______________________________________________________________ 34
9.5.1 PDR 221 mounted in cabinet ____________________________________________________________34
10 Accessories____________________________________________________________ 35
11 Radio Networking _______________________________________________________ 36
11.1 Antennas __________________________________________________________________ 36
11.1.1 Antenna Gain _______________________________________________________________________36
11.1.2 Antenna Types ______________________________________________________________________37
11.1.3 Antenna Gain versus Radio Output Power _________________________________________________38
11.2 Fade Margin ________________________________________________________________ 39
11.3 Radio Link Calculations _______________________________________________________ 40
11.3.1 No Line of Sight Calculations ___________________________________________________________40
11.3.2 Line Of Sight Calculations______________________________________________________________43
12 Configuration __________________________________________________________ 45
12.1 Equipment _________________________________________________________________ 45
12.2 Getting Started ______________________________________________________________ 45
12.3 Configuration Menus Overview _________________________________________________ 46
12.4 Configuration Menus _________________________________________________________ 48
RADIUS
Product Description
PDR221
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12.5 Function ___________________________________________________________________ 48
12.6 Network ___________________________________________________________________ 48
12.6.1 System ID __________________________________________________________________________48
12.6.2 Radio ID ___________________________________________________________________________48
12.6.3 Repeat Alternative Systems ____________________________________________________________49
12.7 Serial _____________________________________________________________________ 49
12.7.1 Bitrate _____________________________________________________________________________49
12.7.2 Parity______________________________________________________________________________49
12.7.3 Pre DCD ___________________________________________________________________________49
12.7.4 Post DCD __________________________________________________________________________49
12.8 Radio _____________________________________________________________________ 50
12.8.1 Collision Avoidance Delay _____________________________________________________________50
12.8.2 Collision Avoidance Delay Min __________________________________________________________50
12.8.3 Collision Avoidance Delay Max__________________________________________________________50
12.8.4 Bit Error Rate Test ___________________________________________________________________50
12.8.5 Communication Test __________________________________________________________________50
12.8.6 Radio Link Test ______________________________________________________________________50
12.8.7 Receiver Test _______________________________________________________________________50
12.8.8 Transmitter Test _____________________________________________________________________50
12.9 Advanced __________________________________________________________________ 51
12.9.1 Detected Radio Type _________________________________________________________________51
12.9.2 Rx Frequency _______________________________________________________________________51
12.9.3 Tx Frequency _______________________________________________________________________51
12.9.4 Split Tx Uplink _______________________________________________________________________51
12.9.5 Split Tx Uplink Frequency ______________________________________________________________51
12.9.6 Split Tx Uplink Id _____________________________________________________________________51
12.9.7 Radio Link Speed ____________________________________________________________________51
12.9.8 Tx Power Level ______________________________________________________________________52
12.9.9 System Frequency Change ____________________________________________________________52
12.9.10 Remote Tx Power Level Change _______________________________________________________52
12.9.11 Radio VCO Lock Test ________________________________________________________________52
12.9.12 Terminal Bitrate_____________________________________________________________________53
12.10 List Configuration ____________________________________________________________ 53
13 Radio Test Functions ____________________________________________________ 54
13.1 Bit Error Rate Test ___________________________________________________________ 54
13.2 Communication Test _________________________________________________________ 56
13.3 Radio Link Test _____________________________________________________________ 57
14 Trouble Shooting _______________________________________________________ 58
14.1 Trouble Shooting the PDR _____________________________________________________ 58
14.2 Support ____________________________________________________________________ 58
RADIUS
Product Description
PDR221
iom_pdr221_04_r02.doc Rev 02 Page 4 (60)
RADIUS UK Ltd
Unit 4E
Bramhall Moor Technology Park
Pepper Road
Hazel Grove
SK7 5BW
ENGLAND
Phone: +44 161 484 2600
Fax: +44 161 484 2671
Email: [email protected]
Web: www.radius-uk.com
1 General
1.1 Document History
Created by: Arto Valtonen / Björn Rosenberg
Valid from: 2004-10-14
Latest Update: 2004-12-14
Approved: Anders Grahn
Template revision: 01, 001024
Revision Date Updated by Amendment
01 2004-10-14 Arto Valtonen First revision
02 2004-12-14 Arto Valtonen Second revision, spelling correction and correction of system example
1.1.1 RADIUS Contact Information
RADIUS US Inc.
10700 W. Venture Drive
Unit B
Franklin, WI 53132
USA
Phone: +1 (414) 427 7010
Fax: +1 (414) 427 7015
Email: [email protected]
Web: www.radius-us.com
RADIUS Sweden AB
Tennvägen 1
SE-371 50 KARLSKRONA
SWEDEN
Telefon: +46 455 30 90 00
Fax: +46 455 245 75
E-post: [email protected]
Web: www.radius.se
RADIUS
Product Description
PDR221
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2 Find Your Way in The Manual
Chapter 3 gives an introduction to Radius PDR221 system and some application examples.
Chapter 4 contains technical specifications for the PDR221.
Chapter 5 provides a Quick Start Guide for installation and configuration of the PDR221
Chapter 6 contains a Glossary of Terms.
Chapter 7 describes the basic and extra features of the PDR221.
Chapter 8 describes how the PDR221 features can/should be used.
Chapter 9 contains installation guidelines, including the serial interface.
Chapter 10 contains information about radio network accesories provided by Radius.
Chapter 11 gives an introduction to general antenna and radio technique and calculations. This
chapter is inteded for those who want to learn more about those subjects.
Chaper 12 describes the PDR221 configuration menus and how to set the different parameters.
Chapter 14 describes the PDR221 radio test functions.
Chapter 15 contains a list of trouble shooting check points.
RADIUS
Product Description
PDR221
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3 Introduction
Wireless communications remains the most cost effective solution for a significant amount of
modern applications. Advances in wireless technology allow data throughput and reliability to be
very high and, given the cost of direct cable, public networks or satellite infrastructure,
price/performance benefits remains far above other means of communication.
Modern wireless devices are much more than simple modems. They are sophisticated units,
designed to allow the user to create their own communication system with the minimum amount of
involvement.
The RADIUS PDR221, Packet Data Radio 221, transceiver provides wide range data telemetry for
control and monitoring systems using any communication protocol. The transceiver is designed for
point-to-multipoint operation environments including water, wastewater, electric utilities, distribution
automation, and gas field automation.
A PDR221 system consists of one master and up to 254 slave radio units. A PDR221 network can
contain one repeater. The repeater can operate stand-alone or with an RTU device connected. A
PDR221 network can, under normal circumstances, cover an area of at least 50 km from the
master.
The PDR221 is suitable for both polled and unsolicited systems. For unsolicited systems, there is
Collision Avoidance functionality built-in to the radio that virtually eliminates in-air collisions, vastly
speeding up the communication throughput. It is also possible to carry out Peer-To-Peer
communication.
The radio communication is completely packet switched, but the serial data is not buffered before
radio transmission, which increases the data throughput. The radio transfer data rate is selectable,
4800/9600 or 9600/19200 bps, depending on desired channel bandwidth, 12.5 or 25 kHz.
The radio modem uses a Forward Error Correction technique, which corrects a large proportion of
transmission errors in case of noise bursts. This feature significantly increases the radio sensitivity.
The PDR221 does not require any routing information, which makes the set-up and configuration
very easy. The configuration menus are accessed via a handheld terminal or a PC.
The control/monitoring device is connected to the PDR221 via a standard RS232 serial interface.
The serial interface speed is adjustable between 600 and 19200 bps, with or without parity. The
transceiver only needs a three wire connection, TxD, RxD and GND, but handshaking signals are
provided if required by the connected device.
The PDR221 provides diagnostic features, remotely changeable parameters, built in survey and
test functionalities. All easily accessed via a hand terminal or a PC.
RADIUS
Product Description
PDR221
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3.1 Typical Application Areas
RADIUS has been a global player in the digital data wireless market for well over a decade, helping
a wide range of customers meeting their operational and financial targets. Working with very small
companies up to Blue Chip companies, RADIUS has provided products, systems and services to
maximise the benefit afforded by their wireless technology.
Our products are a result of the close relationship with our customers and partners and reflect the
current and future needs of the market.
Examples of why to go wireless:
• Replacing a cable in situations where installation of a cable is difficult, expensive or even
impossible.
• Replacing a dial up link to reduce costs.
• Network provider independence.
Example application areas:
• Water/Wastewater
• Electric Distribution
• Gas Distribution
• Oil Distribution
• Wind Power
• Industrial Processes control
• Remote Traffic Control
• Railroad Communication Systems
• Remote PLC control
RADIUS
Product Description
PDR221
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3.1.1 Examples of Typical Application Networks
3.1.1.1 Point-to-Point
3.1.1.2 Point-to-Multipoint
PDR
PLC, RTU or other
devices.
Control System
PDR
PLC, RTU or other
devices
Control system
PLC, RTU or other
devices
PLC, RTU or other
devices
PLC, RTU or other
devices
PLC, RTU or other
devices
RADIUS
Product Description
PDR221
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3.1.1.3 Water/Wastewater Network
PDR
Reservoir
PDR
Waste water plant
Control system
Pump house
Water treatment plant
RADIUS
Product Description
PDR221
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3.1.1.4 Electrical Distribution Network
Control system
Capacitor switch
Substation
Recloser
Metering points
Substation
Inhaltsverzeichnis
