FF-Automation WSN169 Manual de usuario

WSN Manual Page 1 of 34 Rev. G –4 March 2007

WSN SERIES

RADIO MODEMS

SETUP, INSTALLATION

OPERATING MANUAL

WSN Manual Page 2 of 34 Rev. G –4 March 2007

CONTENTS

1INTRODUCTION.....................................................................................3

1.1 PRODUCTS COVERED ....................................................................................................3

1.2 IMPORTANT NOTICES.....................................................................................................3

2PRODUCT OVERVIEW..........................................................................4

2.1 GENERAL..........................................................................................................................4

2.2 TRANSMITTER.................................................................................................................. 4

2.3 RECEIVER......................................................................................................................... 4

2.4 MPU CONTROL................................................................................................................. 5

2.5 PROGRAMMING & CONFIGURATION............................................................................. 5

2.6 SOFT MODEM:..................................................................................................................5

2.7 MODES OF OPERATION..................................................................................................5

2.8 HANDSHAKING................................................................................................................. 5

2.9 ADDITIONAL FEATURES .................................................................................................5

3SPECIFICATIONS..................................................................................7

3.1 TECHNICAL SPECIFICATIONS........................................................................................ 7

3.2 APPROVALS AND LICENSING......................................................................................... 9

4PRE-PROGRAMMED CHANNEL PLANS ...........................................10

4.1 UK MPT1411/VNS2111 CHANNELS.............................................................................. 10

4.2 UK MPT1329 CHANNELS............................................................................................... 12

5SETUP & INTERFACING.....................................................................13

5.1 INTERNAL CONSTRUCTION.......................................................................................... 13

5.2 INTERFACE PORT PIN CONNECTIONS ....................................................................... 13

5.3 12VDC POWER............................................................................................................... 15

5.4 ANTENNA PORT............................................................................................................. 15

5.5 CHANNEL SWITCHES.................................................................................................... 15

5.6 PROGRAMMING............................................................................................................. 15

5.7 RF POWER...................................................................................................................... 15

5.8 TIME-OUT-TIMER ........................................................................................................... 15

5.9 INTERNAL MODEM......................................................................................................... 16

5.10 RADIO DATA FORMATS................................................................................................. 16

5.11 FORWARD ERROR CORRECTOR................................................................................. 17

5.12 SQUELCH TAIL (DRIBBLE BITS) ELIMINATION............................................................ 17

5.13 SERIAL INTERFACE & HANDSHAKING ........................................................................ 17

5.14 TRAFFIC PROTOCOL & ROUTING MODES.................................................................. 19

5.15 TRANSMIT & RECEIVE TIMING..................................................................................... 20

5.16 POWER CONSUMPTION................................................................................................ 23

5.17 POWER SAVE MODE..................................................................................................... 23

5.18 “RSSI” RECEIVE SIGNAL STRENGTH INDICATION..................................................... 23

5.19 STATUS LEDS................................................................................................................. 24

6STORE & FORWARD...........................................................................25

6.1 STORE & FORWARD BASED ON CLIENT PROTOCOL................................................ 25

6.2 MODBUS ......................................................................................................................... 25

6.3 RFT ROUTING PROTOCOL............................................................................................ 27

7INSTALLATION....................................................................................30

7.1 INTRODUCTION.............................................................................................................. 30

7.2 POWER SUPPLIES......................................................................................................... 30

7.3 EFFECTIVE RADIATED POWER (ERP)......................................................................... 30

7.4 ANTENNAS, COAX FEEDERS & PERIPHERALS.......................................................... 31

7.5 MOUNTING & INSTALLATION........................................................................................ 33

7.6 FIXING DETAILS............................................................................................................. 33

WSN Manual Page 3 of 34 Rev. G –4 March 2007

1 INTRODUCTION

1.1 PRODUCTS COVERED

This manual covers the WSN Series of low cost, high performance radio modems designed for

data applications in commercial and industrial systems.

The WSN is an advanced, simplex/half-duplex, data radio for transmission of serial data.

Versions are available with three different serial port configurations:-

A true RS232 interface full handshaking.

As above but with 5V TTL voltage levels on the interface rather than RS232 levels.

An RS232/RS422/RS485 interface with software selection of required mode. (RTS/CTS

and DSR/DTR Handshaking lines looped back to each other in RS232 mode)

Information is provided to assist with configuration, installation, and operation of the products in

point to point or point to multi-point applications. A separate programming manual covers the

use of the associated WinA4P software for programming and configuration of the radios.

Component level servicing is not covered in this document; if the product fails its first line testing

it should be returned to a service centre.

1.2 IMPORTANT NOTICES

1.2.1 Copyright

All rights to this manual are the sole property of FF-Automation Oy The copying of the manual

in whole or in part by any method without written permission is strictly prohibited.

1.2.2 Right To Change

In the interest of improvement, R.F. Technologies reserves the right to change the technical

specifications or functions of its product without notice.

1.2.3 Software

FF-Automation Oy software is delivered “as is”. FF-Automation Oy does not grant any kind of

warranty or guarantees on its saleability or it’s suitability for use in specific applications.

Under no circumstances is R.F. Technologies liable for any damages arising from using the

software.

The copyrights relating to all software is the sole property of FF-Automation Oy.

Any coping, editing, translating or modifying is strictly forbidden without prior written consent

from FF-Automation Oy.

1.2.4 Safety Critical Applications

The WSN has not been designed for, nor is it intended for, use in safety critical or life support

applications. No functional warranty is given if the product is used in such applications.

1.2.5 Use

The WSN radio modems have been designed to work on various licensed and license-free

frequency bands in use around the world. In the license-free bands, the user must ensure that

the radio modem is used under the terms & conditions applicable to the use of the bands

concerned.

In licensed bands, the user must obtain permission and the necessary licenses from the

relevant authorities.

WSN Manual Page 4 of 34 Rev. G –4 March 2007

2 PRODUCT OVERVIEW

2.1 GENERAL

The WSN Series has been designed as a range of high specification, low cost radio modems for

stand-alone applications or for integration into OEM products.

Through the use of advanced DSP technology, the design has been optimised for reliability and

low current consumption, making the WSN suitable for operation on remote sites without mains

power.

Applications include security, command & control, data logging, SCADA, telemetry, remote

switching or any similar applications where serial data needs to be transmitted.

The WSN is available with three different serial interfaces:-

An RS232 interface with all signalling lines to allow full handshaking if required.

A TTL version of the unit, which uses 5V TTL voltage, levels on the serial interface

connector rather than RS232 signalling levels, but is otherwise the same.

A version with an RS232/RS422/RS485 interface. Required interface mode is selected

using the configuration software. In RS232 mode, the RTS line is looped back to CTS

and the DSR line is looped back to DSR. RS422/RS485 half-duplex (2-wire) or full

duplex (4-wire) modes are both supported.

The data rate on the serial interface can set to a range of values from 150 baud to 38,400 baud,

while the over-air data rate can be independently set to a range of values between 150 baud

and 9,600 baud. If high throughput speeds are not required, the modem can be set to a slower

over-air rate to take advantage of the associated improvement in receiver threshold.

The WSN is available with two different transmit powers. The low power version meets the

licence-exempt ETS300-220 specification while the higher power 5W version meets the tougher

ETS300-113 and the USA and Canadian specifications.

2.2 TRANSMITTER

The transmitter frequency can be user programmed anywhere within it’s pre-aligned bandwidth.

There are two power versions available, 10mW to 750mW and 50mW to 5W. The transmit

power of any particular hardware version can be set accurately within the relevant range under

software control.

2.3 RECEIVER

The receiver is a very low current double conversion superheterodyne with an active balanced

mixer for very good intermodulation performance. Careful attention to spurious response,

adjacent channel and blocking performance, makes the product ideal for crowded telemetry

channels.

To achieve high performance the programmable bandwidth of the receiver has been limited (for

UHF it is 10MHz, + 5MHz from centre frequency), full details are in the technical specification

section.

Should re-alignment be required, the unit can be returned to our service centre.

WSN Manual Page 5 of 34 Rev. G –4 March 2007

2.4 MPU CONTROL

The Microprocessor (MPU) is the heart of the product and at the centre is a 128k flash

microprocessor that controls all the interface circuits to the radio module and external

input/outputs. As well as the control function, the processor provides DSP functionality that

enables modem operation between 150 and 9,600bps. The processor has 128k of flash

memory from which the code is executed and internal EEPROM for storing programmed

parameters.

2.5 PROGRAMMING & CONFIGURATION

The parameters of the WSN are PC programmable via the serial port. Full details of all the

programmable parameters are covered in the separate programming manual. Details of cables

and adaptors needed for the various interface versions are given in Section 5.6.

2.6 SOFT MODEM:

The WSN has a “soft modem” which allows over-air transmission at rates between 150bps and

9,600bps using a range of different modulation schemes. The over-air rate can be selected by

the operator to optimise link performance.

2.7 MODES OF OPERATION

2.7.1 Transparent Operation

The WSN can operate transparently without packetising the data and without adding any other

overheads, thereby maximising data throughput rates. It requires no knowledge of the data it is

transmitting. Data is simply transmitted and received with minimal delay.

2.7.2 Protocol specific modem

The radio recognises a complete frame and only transmits and receives data conforming to that

format. No addressing of radios or routing of data is performed. Protocols such as MODBUS &

DNP3 can be supported in this way.

2.7.3 Routing modem

The radios recognise a protocol specific frame and the address to which the frame is to be sent.

Routing information must be stored in each radio for each destination address that requires the

use of repeaters. Any radio in the system can operate as a repeater. The radio does not

perform any acknowledgement or retries. Any protocol using a fixed address field such as

MODBUS can be supported.

2.8 HANDSHAKING

On the RS232 Full Handshaking and TTL versions, transmission control can either use RTS

control signals or be configured for automatic initiation of transmission on receipt of serial data

at the traffic interface. In either case, the radio provides a CTS output, which can optionally be

used for flow control.

On the RS232/RS422/RS485 version, transmission is automatic when transmit data is applied.

The DSR line is internally looped back to DSR and, when configured for RS232 mode, the RTS

line is also looped back to CTS.

In all versions, the radio incorporates a 1,024 byte internal buffer to cope with situations where

the interface data rate is higher than the over-air rate.

2.9 ADDITIONAL FEATURES

The WSN incorporates the following additional features which enhance the usability of the

product and assist with the operation and maintenance of systems using the product:-

2.9.1 Status LEDs:

The WSN Radio Modems have a number of front panel LED’s to enable the operator to see at a

WSN Manual Page 6 of 34 Rev. G –4 March 2007

glance the status of the product and the serial data port.

2.9.2 Time-out Timer

The transmitter within the WSN has a user programmable time-out timer which allows the

maximum continuous transmission time to be set in order to prevent channel blocking due to a

fault.

2.9.3 Power-Save Modes

The WSN has both internally controlled and externally controlled power-save modes to reduce

overall power consumption to extremely low levels for operation on sites without mains power.

2.9.4 Squelch Tail Elimination

As a user programmable option, the WSN can also operate in a packetisation mode where

framing characters are added at the start and end of the user's message prior to transmission

and stripped off again at the receive end prior to passing the user data to the interface

connector. This can be useful in getting rid of any spurious characters which may otherwise be

generated at the end of messages by squelch noise as the receiver mutes and which can affect

old or non-tolerant protocols.

In a high interference environment, enabling packetisation will often help to block reception of

the interfering signals.

2.9.5 Forward Error Correction

The WSN allows an optional forward error correction to be switched in when the over-air data

rate is 9,600bps. This will improve error performance, but there is an associated data

throughput overhead of around 30%, which therefore reduces the effective transmission rate for

the user data. The forward error corrector is not available at lower data rates, as it offers no

significant performance enhancement at these lower rates.

WSN Manual Page 7 of 34 Rev. G –4 March 2007

3 SPECIFICATIONS

3.1 TECHNICAL SPECIFICATIONS

3.1.1 General

Frequency Range: WSN169/170 138 - 175MHz

WSN225 175 - 225MHz

WSN450/470 406 - 512MHz

WSN869 869 - 870MHz

(50MHz –950MHz to special order)

Power Requirements: 12VDC (10V –15.5DC)

Standby: <75uA

Receiver on & decoding: <70mA

Transmitting: 300mA to 2.1A dependent on Tx power

Number of Channels: 80 sequential or 32 discrete user programmable channels.

Min. Programmable

Channel Step: 6.25kHz or 5kHz

Channel Spacing: 12.5kHz, 20kHz or 25kHz

Operating Temp.

Stability: 2ppm –30 to +60ºC

Construction: Aluminium enclosure.

Size: 75mm W x 130mm L x 30mm H (excluding brackets and connectors)

Mounting: Screws to a flat surface.

Weight: 250g

Connectors: DC Power 2-way Klippon Type

Serial Data 9-way D-Type Female

RF BNC (50 ohm)

LED Indicators: TX, Busy, System, RXD, TXD

3.1.2 Transmitter:

RF Output Power: WSN 169/450/869 10mW - 750mW

WSN 170/225/470 50mW - 5Watts

Bandwidth: VHF 10MHz without re-alignment

UHF 12MHz without re-alignment

869 30MHz without re-alignment

Internal Modulation: Programmable for FFSK, 2-Level FSK, GMSK or 4-Level FSK.

Max. Deviation: ± 7.5kHz max

Duty Cycle up to 70%

Adj. Channel Power: >65dB at 12.5kHz

Spurious Emissions: As per ETS300-113

Rise Time: < 9mS

3.1.3 Receiver

Sensitivity: 0.25uV (-119dBm) for 12dB SINAD de-emphasised

0.355uV (-117dBm) for 12dB SINAD flat

Bandwidth: VHF 5MHz without re-alignment

UHF 10MHz without re-alignment

WSN Manual Page 8 of 34 Rev. G –4 March 2007

869 20MHz without re-alignment

Spurious Response: WSN 169/450/869 >65dB

WSN 170/225/470 >70dB

Blocking: WSN 169/450/869 >85dBuV

WSN 170/225/470 >90dBuV

Intermodulation: WSN 169/450/869 >60dB (3 Signal)

WSN 170/225/470 >65dB (3 Signal)

Adjacent Channel: >65dB at 12.5kHz

IF Frequencies: 45MHz and 455kHz

Spurious Emissions: WSN 169/450/869 <ETS 300-220

WSN 170/225/470 <ETS 300-113

Mute Response Time: <2msec

3.1.4 Internal Modem

Serial Comms: Asynchronous (or Synchronous with custom software).

Baud rate programmable between 150bps and 38,400bps

Interface: /232Full version :- RS.232 complete with signalling lines

/TTL version:- 5V TTL levels rather than RS.232

/232+485 version:- RS.422/RS.485 (2 or 4 wire) or

RS232 with looped back signalling lines.

Parity: Programmable as Odd, Even or None

NRZI: On or Off

Stop bits: Programmable 1 or 2

Data Bits: Programmable 7 or 8

Signalling Formats: Programmable as V23, Bell202 or MPT1327, up to 1200 baud, coherent

FFSK at 2400 baud, GMSK at 4800 baud, 4 Level FSK at 9600 baud.

Synchronous/Async. Programmable as either up to 1200bps, synchronous above 1200bps

Over-air Baud Rate: 150 –9600bps within 12.5kHz

Bit Error Rate: 150 - 2400 baud less than 1 x 10-3 at –120dBm

4800 baud less than 1 x 10-3 at –117dBm

9600 baud less than 1 x 10-3 at –115dBm (FEC on)

9600 baud less than 1 x 10-3 at –112dBm (FEC off)

Forward Error Corrector (FEC) is a programmable option at 9600bps.

The bit error rates quoted above are for fixed messages representing

typical data sent over the link. The BER should not be directly compared

with other manufactures figures unless the data format is known, as

many manufacturers quote a BER based on a simple alternating data

pattern, which will generally give much better BER results.

WSN Manual Page 9 of 34 Rev. G –4 March 2007

3.2 APPROVALS AND LICENSING

The WSN has been designed to meet the relevant standards outlined below. Should others be

required, please contact the sales office.

3.2.1 UK Approvals

MPT1411/VNS2111: The 5W version of the WSN has been tested to MPT1411 and the

replacement VNS2111 for licensed applications with a maximum data

rate of 9600bps within a 12.5 kHz channel. A licence is required and the

permitted output power is normally stated on the licence.

MPT1329: The radios meet the requirements of MPT1329

BS2011: The unit complies with the Vibration specification BS2011.

3.2.2 European Approvals

ETS 300-220 The unit meets the specification for European licensed exempt

communications with a maximum RF power level of 500mW. Please

note the permitted power level may vary from country to country.

ETS 300-113 The 5W version of the unit meets the specification for licensed data

radios

ETS 301-489: The unit meets the required CE specification and carries a CE Mark.

EN60950 The unit meets the relevant requirements of this Safety specification.

3.2.3 European Declaration of Conformance

Hereby, FF-Automation Oy declares that the WSN Series of Radio Modems is in compliance

with the essential requirements and other relevant provisions of Directive 1999/5/EC.

In the interest of improvement the above specifications are subject to change without notice.

WSN Manual Page 10 of 34 Rev. G –4 March 2007

4 PRE-PROGRAMMED

CHANNEL PLANS

Using the PC configuration software, the WSN can be programmed with a number of standard

channel plans. These currently include all UK MPT1411 or MPT1329 channels. Further

standard channel plans may become available in later releases of the configuration software. A

mixture of channels from different channel plans can also be entered discretely using the

software.

The following tables show the channel numbers and associated frequencies for various channel

plans:-

4.1 UK MPT1411/VNS2111 CHANNELS

CHANNEL

SCANNER

OUTSTATIONS

457.50625

463.00625

457.51875

463.01875

457.53125

463.03125

457.54375

463.04375

457.55625

463.05625

457.56875

463.06875

457.58125

463.08125

457.59375

463.09375

457.60625

463.10625

457.61875

463.11875

457.63125

463.13125

457.64375

463.14375

457.65625

463.15625

457.66875

463.16875

457.68125

463.18125

457.69375

463.19375

457.70625

463.20625

457.71875

463.21875

457.73125

463.23125

457.74375

463.24375

457.75625

463.25625

457.76875

463.26875

457.78125

463.28125

457.79375

463.29375

457.80625

463.30625

457.81875

463.31875

457.83125

463.33125

457.84375

463.34375

457.85625

463.35625

457.86875

463.36875

457.88125

463.38125

457.89375

463.39375

457.90625

463.40625

457.91875

463.41875

457.93125

463.43125

457.94375

463.44375

457.95625

463.45625

457.96875

463.46875

457.98125

463.48125

457.99375

463.49375

458.00625

463.50625

458.01875

463.51875

458.03125

463.53125

458.04375

463.54375

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