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. Page 1 www.multitone.
9261-8252 Issue 07 Description 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 6 Disassembly and Reassembly 5.1 Disassembly 5.2 Reassembly RPT500 Line Synchronisation Adjustment 6.
9261-8252 Issue 07 Description 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.
9261-8252 Issue 07 Description 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.
9261-8252 Issue 07 Description 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.
9261-8252 Issue 07 Description 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.
9261-8252 Issue 07 Description 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.
261-8252 Issue 07 Description 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.
9261-8252 Issue 07 Description 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.
9261-8252 Issue 07 Description This will then display the current transmitter parameters: Page 10 www.multitone.
9261-8252 Issue 07 Description 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: Page 11 www.multitone.
9261-8252 Issue 07 Description If the frequency has been altered, select Frequency Adjustment: 4.7 VCO ADJUSTMENT Select Start VCO Adjustment: Page 12 www.multitone.
9261-8252 Issue 07 Description 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: Page 13 www.multitone.
9261-8252 Issue 07 Description 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.
9261-8252 Issue 07 Description 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: Page 15 www.multitone.
9261-8252 Issue 07 Description 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.
9261-8252 Issue 07 Description 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.
9261-8252 Issue 07 Description 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.
9261-8252 Issue 07 Description 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.
9261-8252 Issue 07 Description 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. Page 20 www.multitone.
9261-8252 Issue 07 Description 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.
9261-8252 Issue 07 Description Select Start Transmitter Monitoring. This gives a bar showing transmitter status: Page 22 www.multitone.
9261-8252 Issue 07 Description 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.
