Multitone Electronics PLC RPT503 UHF Paging Transmitter User Manual Installation Guide

Multitone Electronics PLC UHF Paging Transmitter Installation Guide

Contents

Installation Guide

Installation Guide RPT500 9261-8252
9261-8252 Issue 07 Description Page 1 www.multitone.com 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 05 16.04.07 28.06.07 Para. 4.3 Aerial Inserted 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.
9261-8252 Issue 07 Description Page 2 www.multitone.com CONTENTS Section Title 1 Introduction 2 Safety Warning 3 Compliance Information 4 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 5 Disassembly and Reassembly 5.1 Disassembly 5.2 Reassembly 6 RPT500 Line Synchronisation Adjustment 6.1 Master Transmitter 6.2 Slave Transmitter
9261-8252 Issue 07 Description Page 3 www.multitone.com 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.
9261-8252 Issue 07 Description Page 4 www.multitone.com 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: 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. Multitone Electronics plc Technical Publications Hansa Road Hardwick Industrial Estate Kings Lynn Norfolk PE30 4HX England
9261-8252 Issue 07 Description Page 5 www.multitone.com 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 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. WARNING Do not install / use this equipment near sources of water, moisture, or inareas where explosive gases may be present! Do not expose to strongmagnetic fields, extreme temperatures or strong sunlight.
9261-8252 Issue 07 Description Page 6 www.multitone.com 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.
9261-8252 Issue 07 Description Page 7 www.multitone.com 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.
9261-8252 Issue 07 Description Page 8 www.multitone.com 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.
9261-8252 Issue 07 Description Page 9 www.multitone.com 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:
9261-8252 Issue 07 Description Page 10 www.multitone.com This will then display the current transmitter parameters:
9261-8252 Issue 07 Description Page 11 www.multitone.com 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:
9261-8252 Issue 07 Description Page 12 www.multitone.com If the frequency has been altered, select Frequency Adjustment: 4.7 VCO ADJUSTMENT Select Start VCO Adjustment:
9261-8252 Issue 07 Description Page 13 www.multitone.com 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:
9261-8252 Issue 07 Description Page 14 www.multitone.com 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:
9261-8252 Issue 07 Description Page 15 www.multitone.com 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:
9261-8252 Issue 07 Description Page 16 www.multitone.com 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.
9261-8252 Issue 07 Description Page 17 www.multitone.com 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 1 Flash Input – Do not connect 2 Black Ground 3 Yellow Ground 4 Green Ground 5 Orange Ground 6 Pink Data Input 7 Flash Input – Do not connect 8 Grey Mode Line Input 9 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!
9261-8252 Issue 07 Description Page 18 www.multitone.com 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.
9261-8252 Issue 07 Description Page 19 www.multitone.com 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.
9261-8252 Issue 07 Description Page 20 www.multitone.com 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.
9261-8252 Issue 07 Description Page 21 www.multitone.com 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.
9261-8252 Issue 07 Description Page 22 www.multitone.com Select Start Transmitter Monitoring. This gives a bar showing transmitter status:
9261-8252 Issue 07 Description Page 23 www.multitone.com 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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