Multitone Electronics PLC RPT503 UHF Paging Transmitter User Manual Installation Guide

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Document ID	954624
Application ID	mJUF0RU0yZ2VOf+PDJtmHA==
Document Description	Installation Guide
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	91.49kB (1143622 bits)
Date Submitted	2008-06-12 00:00:00
Date Available	2008-08-08 00:00:00
Creation Date	2008-04-14 11:18:56
Producing Software	Acrobat Distiller 6.0.1 (Windows)
Document Lastmod	2008-04-14 11:22:54
Document Title	Microsoft Word - RPT500 Installation & Alignment Guide _9261-8252 Issue 7_.…
Document Creator	Acrobat PDFMaker 6.0 for Word
Document Author:	Nick Gooding

Installation Guide
RPT500
9261-8252
9261-8252 Issue 07
Description
ISSUE CONTROL
Issue
Date
Remarks
01
19.02.07
First Issue
02
13.03.07
Software update
03
26.03.07
Line Synchronisation Added (Section 6)
04
16.04.07
Para. 4.3 Aerial Inserted
05
28.06.07
Para. 4.3 modified
06
28.09.07
North American info. added to Para. 2.3 & Section 3. Para's.
4.3, 4.11 & Section 5.1 modified.
07
14.04.08
Reference to earthing of enclosure amended, Section 4.1.
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CONTENTS
Section
Title
Introduction
Safety Warning
Compliance Information
Installation & Fitting
4.1
Fitting
4.2
Power Supply
4.3
Aerial
4.4
Transmitter Adjustment
4.5
PC programming
4.6
Frequency Adjustment
4.7
VCO adjustment
4.8
Data Modulation adjustment
4.9
Line Level adjustment
4.10 RF power adjustment
4.11 Connections
Disassembly and Reassembly
5.1
Disassembly
5.2
Reassembly
RPT500 Line Synchronisation Adjustment
6.1
Master Transmitter
6.2
Slave Transmitter
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SECTION 1 – INTRODUCTION
This Installation Guide describes the installation and operation of the RPT500 Series Paging
Transmitter.
Note: There are no users serviceable parts in this equipment, all faulty units should be returned to
Multitone or their agent, for repair.
WEEE Directive & Product Disposal
At the end of its serviceable life, this product should not be treated as
household or general waste. It should be handed over to the applicable
collection point for the recycling of electrical and electronic equipment, or
returned to Multitone or their agent, for disposal.
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SECTION 2 - SAFETY WARNING
2.1
COMPANY LIABILITY
The information in this manual has been carefully compiled and checked for technical accuracy.
Multitone Electronics plc accept no liability for inaccuracies or errors. In line with the company policy
of technical advancement, the information within this document may be changed. The user should
ensure that the correct issue of the document is used. Comments or correspondence regarding this
manual should be addressed to:
Multitone Electronics plc
Technical Publications
Hansa Road
Hardwick Industrial Estate
Kings Lynn
Norfolk
PE30 4HX
England
2.2
SAFETY SUMMARY
The following information applies to both operating and servicing personnel. General Warnings and
Cautions will be found throughout the manual where they apply.
WARNING statements identify conditions or practices that could result in personal injury or loss of life.
CAUTION statements identify conditions or practices that could result in equipment damage.
2.3
IMPORTANT SAFETY INFORMATION
The Multitone RPE/RPT500 Series Radio Paging Transmitter equipments, contain a low
power (5 Watts) transmitter and are intended for use with either an externally mounted
dipole antenna, or a “local” unity gain (or less) "desk-top" whip antenna.
The equipment’s performance may be characterized in accordance with the recommended MPE
requirements of the European Council Directive 1999/519/EC on the limitation of exposure of the
general public to electromagnetic fields (0Hz - 300GHz), as given in Annex III, Table 2; the
requirements of FCC 47CFR and Industry Canada Standard RSS102.
Where an installation is to be fitted with a "local" whip style antenna, the following criteria must
adhered to, in order to reduce and comply with the Electro-magnetic radiation absorption regulations.
Any equipment and antenna that is installed within an area normally populated whilst it is in
use, must be located in a position where people may not approach, or be located within 1m of
the radiating antenna, for periods in excess of 5 mins. in any 1 hour. This distance is calculated
to provide an additional safety margin for the product.
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SECTION 3 - COMPLIANCE INFORMATION
EU Territories - This product complies with the requirements of the EU Radio & Telecommunications
Terminal Equipment Directive 99/5/EC. A complete copy of the associated Declaration Of Conformity
for this and other Multitone products, may be found at the Multitone Internet address
www.multitone.com.
This is a Class 2 type equipment under the terms of the R & TTE Directive and is therefore
subject to restrictions in its use. Before installation and use, consult your local radio
communications spectrum authority, for licensing and frequency regulations.
US & Canada - This product has been tested and certified for use in both the US and Canada. Any
modifications to this equipment not expressly authorised by Multitone, could void the user's authority
to operate the equipment.
(The term "IC:" before the certification/registration number, only signifies that the Industry Canada
technical specifications were met.)
Installation Notes
WARNING
Do not install / use this equipment near sources of water, moisture, or in
areas where explosive gases may be present! Do not expose to strong
magnetic fields, extreme temperatures or strong sunlight.
The equipment should be positioned so that there is no interference to the flow of air around the unit
and away from sources of heat. It should only be mounted to a wall, as recommended in the
installation instructions.
All installation wiring should be carried out in accordance with recognised Codes Of Wiring Practice,
applicable to the equipment and circuits involved, e.g. Mains power, telephone and/or radio. Power
supply cords and other leads should be routed so that they are not likely to be walked on, or pinched
by items placed upon or against them. Particular attention should be paid to cord entrance and exit
points.
Where installation involves an external radio aerial/antenna, the antenna should be located away from
power lines. Ensure that where applicable the antenna system is grounded, to provide some
protection against voltage surges and the build-up of static charges.
This equipment has been designed to conform to the relevant Radio and EMC performance
standards, but it may be necessary to take additional precautions during installation, to ensure
continued compliance.
Use only cables supplied, or suitably rated power cables and screened signaling cable. Where quoted,
do not exceed specified cable lengths and keep cable runs to a minimum, especially on the outside of
buildings.
Do not unnecessarily route wiring alongside cables from or through areas that are a source of
interference e.g. heavy plant and switch rooms, RF transmitter housings, without taking suitable
precautions to reduce EM interference coupling.
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Where necessary, use additional protection e.g. armoured trunking, surge arrestors, especially on the
outside of buildings.
Where any interference problems are observed, it may be required to fit additional filtering
components such as ferrite absorbers, or in-line filters. If such action proves to be necessary, contact
either Multitone or their authorised agents.
Connection of Power Supplies
Use only power sources specified, or supplied by Multitone. The use of another device will invalidate
any declared conformity for this equipment, if as a result it ceases to conform to those standards on
which conformity is based.
The equipment should only be connected to a power supply as described in the operating instructions,
as marked on the equipment, or supplied by Multitone. Do not overload outlets and extension cords,
as this can result in fire, or electrical shock.
Where equipment has been provided with a three-wire grounding type plug, this plus will only fit a
grounding type power outlet. This is a safety feature and should not be defeated. If you are unable to
use a grounding outlet, contact your electrician.
Where equipment has been has been provided with a polarised line plug (one blade wider than the
other - US/Canada), this plug will only fit a power outlet one way. This is a safety feature and should
not be defeated. If you are unable to insert the plug fully, try reversing the plug. If the plug still does
not fit, contact your electrician to replace the obsolete outlet.
Servicing
This equipment contains non user-serviceable parts. All repairs to be undertaken by qualified service
personnel. In the case of a problem, please contact your service representative/agent.
All the safety and operating instructions should be read before the equipment is connected and
operated and retained for future reference. All warnings marked on the equipment should be strictly
adhered to. No attempt should be made to remove any designated safety covers, as these areas
contain voltages of a sufficient magnitude to constitute a risk of electric shock to personnel.
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SECTION 4 - INSTALLATION & FITTING
The installation and servicing of this product must only be carried out by suitably qualified personnel.
4.1
FITTING
The RPT500 can be wall or shelf mounted. For wall mounting there are two mounting brackets affixed
to the base of the transmitter. Attach the unit to the wall through the four mounting holes provided,
using suitable fixings.
For shelf mounting, remove the four screws affixing the wall mounting brackets and substitute the four
rubber feet supplied. Where this method of installation is used, ensure that the unit is physically stable
once all the leads have been connected.
An earth wire MUST be fitted to the 4mm earth screw terminal on the back of the transmitter, using the
earthing lead supplied, or suitable equivalent.
4.2
POWER SUPPLY
The power supply can be wall mounted, using the two holes in the mounting bracket supplied and
suitable fixings. Once the bracket is attached to the wall, fit the power supply to the bracket by feeding
the DC output lead through the square hole in the bracket, from the inside. With the power supply
sitting centrally between the two lugs of the bracket, insert the mains connector into the power supply
through the oval hole, ensuring that it is fully pushed in. This locks the power supply into the bracket.
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The transmitter requires 13.8VDC at about 2.1A. The DC input to the transmitter is via a 2.1mm
connector. To fit the locking type connector to the transmitter, push the connector in and turn it until
the two locking lugs enter the socket and none of the connector barrel is visible. Then turn the
connector a quarter turn clockwise.
To disconnect, first turn the connector a quarter turn anti-clockwise and then pull.
4.3
AERIAL (see also 2.3)
The impedance of the aerial should be 50 ohms. It is recommended that the aerial be connected to the
transmitter by coaxial cable and be sited at least 1.5 metres from the transmitter.
Care must be taken during installation to keep the power supply away from
excessive RF fields.
Where the transmitter power is to be greater than 2.5W, the antenna must be sited a minimum of 1.5
metres away from the RPE/RPT500 housing and power supply.
In cases where a close-coupled antenna must be used, the transmitter power must be reduced to a
maximum of 2.5W and care must be taken to position the antenna at least 0.5m from the power
supply unit.
4.4
TRANSMITTER ADJUSTMENT
Whilst adjusting the transmitter, an aerial or dummy load MUST be connected to the RF Output
socket.
To adjust the transmitter, a PC with the RPT500 field programming software installed is required, with
the RS232 serial port connected to the 15 way hi-density D Auxiliary Connector on the RPT500 using
lead part number 7761-8251. To adjust the VCO, a long thin non-metallic (preferably ceramic)
adjustment tool is required (part no. 8902-0004.)
There are no selectable links or diodes within the transmitter. All adjustments and settings, apart from
the VCO frequency, are made from the connected PC.
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The transmitter MUST NOT be keyed if it is removed from the case for any reason. The RF power
amplifier utilises the case as a heat-sink, therefore it is likely to destroy the amplifier very quickly if this
provision is removed.
4.5
PC PROGRAMMING
If a particular setup is used often, a setup file can be saved and recalled via the File menu.
A transmitter monitoring bar is available from the Action menu. This monitors the transmitter status.
Open the field programmer on the PC and select Action-Read:
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This will then display the current transmitter parameters:
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4.6
FREQUENCY ADJUSTMENT
If changing the frequency, enter the new frequency in the frequency box. If necessary the reference
frequency can be changed to 10000Hz. The new frequency must be a multiple of 10000 or 12500Hz
and in the range 430.000 to 470.000MHz. Set Alarm Set Power to required level. Reselect any other
parameters which need to be changed, then click Write. The new parameters are now stored in the
transmitter.
Click Alignment:
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If the frequency has been altered, select Frequency Adjustment:
4.7
VCO ADJUSTMENT
Select Start VCO Adjustment:
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If the VCO control voltage bar is not green, remove the VCO Adjustment Cover from top of transmitter
and using a thin non-metallic adjusting tool, adjust CV1 until the control voltage bar is green:
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Replace the VCO Adjustment Cover. Click Start Centre Frequency and using a frequency counter (via
an attenuator!), check that the transmitter carrier is on the correct frequency (within 150Hz). If not,
adjust the frequency using the Centre Frequency slider (left mouse button click and hold). Fine
adjustment can be better achieved by using the left and right arrow cursor keys on the PC keyboard,
once the slider has been selected with a left mouse button click:
4.8
DATA MODULATION ADJUSTMENT
Select and repeat this adjustment for Data ‘1’ Frequency and Data ‘0’ Frequency modes, which should
be set to:
Slider
25 KHz Bandwidth
12.5 KHz Bandwidth
Data 1 Frequency
Carrier minus 4.5 KHz
Carrier minus 2.25 KHz
Data 0 Frequency
Carrier plus 4.5 KHz
Carrier plus 2.25 KHz
Data Shape (Deviation)
4.5KHz
2.25KHz
Data ‘1’ frequency MUST be set before data ‘0’ frequency.
Once the frequencies have been set, the Data Shape Adjustment must be set. The easiest way to do
this is to connect a modulation meter to the output (via an attenuator!) and adjust the Data Shape
slider for the correct deviation. The required data is generated by the software. Once deviation is set,
click on Stop Data Shape Adjustment and close the Frequency Adjustment window:
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4.9
LINE LEVEL ADJUSTMENT
Feed a 1209Hz tone into the RPT500 600 Ohm line input (e.g. C+5 on P391) at –13dBm level. Click
Start Monitoring Line Level:
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Adjust the Line Level slider, until the Line Level bar is green:
Click Stop Monitoring Line Level button.
Next, using a modulation meter and with transmitter keyed on in Analogue Mode, adjust the Speech
Deviation and Speech Limiter sliders as follows:
Slider
Line Level
25 KHz Bandwidth
12.5 KHz Bandwidth
Speech Deviation
-13dBm
3.5KHz
2.0KHz
Speech Limiter
7dBm
4.5KHz
2.5KHz
It may be necessary to iteratively adjust these two sliders, as they are interactive.
4.10
RF POWER ADJUSTMENT
Click Start Monitoring Power Output and then Key Tx On – Analogue Mode. Using a power meter on
the transmitter output, adjust the Forward Power slider for the required output. This power must agree
with the Set Alarm Power level or false fault conditions may be generated. DO NOT SET TO MORE
THAN 5 WATTS!
If the transmitter frequency has not been changed by more than about 5MHz, then further adjustment
of the frequency, deviation and power level MAY not be necessary, once the VCO has been adjusted
onto frequency.
The alignment window must be closed, in order to close the field programmer program.
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4.11
CONNECTIONS
RF output is via the N-type connector on the front of the transmitter.
The line connector is an 8-pin RJ45 socket. This connector carries both the Audio Line and the Line
Synchronisation circuits. The Audio/Data Line connections are compatible with the P251 Series.
Input is 600 Ohms impedance and should be at –13dBm level.
Pins 2 and 4 are Audio/Data Line, Pins 6 and 8 are Line Synchronisation line (also –13dBm 600
Ohms.)
Direct inputs (Data, Key and Mode) are on the Auxiliary Connector. Cable 7761-8245 is available,
which has the connector on one end and open wires at the other, for connection in a junction box.
4.11.1 Auxiliary Connections:
Pin
Wire colour
Function
Flash Input – Do not connect
Black
Ground
Yellow
Ground
Green
Ground
Orange
Ground
Pink
Data Input
Flash Input – Do not connect
Grey
Mode Line Input
Flash Input – Do not connect
10
Blue
Key Line Input
11
Red
Fault Output (open collector)
12
Violet
12V 10mA Output
13
Brown
Serial RS232 Transmit Data
14
Pink
Serial RS232 Receive Data
15
Flash Input – Do not connect
Turquoise
Cut Short
The polarity for the mode, key and data lines, is software selectable from the field programmer.
The Serial RS232 circuits on this socket, are for connection to the field programmer.
The Flash Inputs are for re-flashing the RPT500 firmware. These must not be connected!
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SECTION 5 - RPT500 DISASSEMBLY and REASSEMBLY
5.1
DISASSEMBLY
Ensure that the transmitter is unplugged.
Remove the 3 x M3 screws from either side of the transmitter.
Remove the four front retaining screws.
Pull the transmitter circuit board out of the case from the front, with the front panel attached.
5.2
REASSEMBLY
Slide the transmitter into the correct runners, so that the front panel aligns with the case. Ensure that
the rear connectors align with their cut-outs. This does not require undue force!
Loosely fit the M3 screws in the side of the transmitter.
Fit the four front retaining screws and tighten
Tighten the M3 screws fully to pull the power amplifier heat-sink into close contact with the case.
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SECTION 6 – RPT500 LINE SYNCHRONISATION ADJUSTMENT
This procedure applies to both the RPT501 and RPT503 transmitter variants.
Ensure that both the line synchronisation and audio lines are connected correctly. The polarity of the
audio line is important, but the polarity of the synchronisation line makes no difference.
The line synchronisation signal level is –13dBm into 600 Ohms, at a frequency of 20,000Hz. It must
therefore be connected by a continuous twisted copper pair, from the Master through to the Slave
equipment(s).
6.1
MASTER TRANSMITTER
Connect the Field Programmer to the RPT500 and read from the transmitter. Select Master from the
Line Sync pull-down menu.
Write to the transmitter.
Click the Alignment button.
Click the Start Monitoring Line Sync Level button.
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Start with the Line Sync Level Slider at minimum (to the left) and pull the slider across to the right, until
the Line Sync Line Level bar changes to red and then green. Stop before the bar changes back to red.
Click Stop Monitoring Line Sync Level.
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Close the Alignment Window.
Setup is complete.
6.2
SLAVE TRANSMITTER
Connect the Field Programmer to RPT500 and read from the transmitter. Select Slave from the Line
Sync pull-down menu.
Write to the transmitter.
Click the Alignment button.
Click the Start Monitoring Line Sync Level button.
Check that the Line Sync Line Level bar shows a level of 300 or more. Preferably the bar should be
green, but this may not always be possible. If the level is below 300, return to the Master transmitter
and increase its output a little.
Click Stop Monitoring Line Sync Level.
Close the Alignment Window.
Setup is complete.
Synchronisation can take up to about 30 seconds to complete.
It is possible to check the status of the transmitter.
Click on the Action menu.
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Select Start Transmitter Monitoring.
This gives a bar showing transmitter status:
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Key the transmitter from the Alignment screen. If all is well, the transmitter will key and the OK
indicator will remain green. If the line sync. has failed, The OK indicator will change to red and the
message Line Sync Fault will be shown:
The transmitter status bar registers faults only when the transmitter is keyed. The exception is
Connected, which indicates communication between the PC and the transmitter.
The Faults section of the main screen, shows the number of times each fault has occurred whilst the
transmitter has been keyed. It is updated only when the transmitter is read and therefore will not
indicate a fault in “real time”. The fault counts can be edited (back to zero) and then written back to
the transmitter.
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