PS-20 Power Supply User Manual
Contents
1. Environmental Operating Temperature 0 C 50 C 32 F to 122 F Storage 40 C to 70 C 40 F to 158 F Humidity 0 to 95 non condensing Dimensions and Finish Height 1 72 inches 44 mm 1 RU Width 8 186 inches 207 9 mm Weight Under Slbs Finish Thermoplastic front panel Aluminum case RTS light gray paint black silk screen Mounting MCP Style rack kit or included rubber adhesive feet Approvals and Listings CE Comformit Europ enne UL Underwriters Laboratory CSA Canadian Standards Associations WEEE Waste Electrical and Electronics Equipment ROHS Restriction of Hazardous Substances Installation Mechanical Installation The PS 20 Power Supply can be rack mounted or used free standing For rack configurations see Figure 7 Rack Mount Configurations for the PS 20 on page 13 Allow room for cable connections Electrical Installation Connecting Intercom Stations NOTE When connecting intercom stations do not exceed the power supply capacity either for channel 1 channel 2 or both Power supply capacity is graphically illustrated in Figure 3 on page 9 Connect intercom channels to the output connectors on the rear panel see Figure 8 Configuration Diagrams on page 14 Using two 2 PS 20s and Audio Linking 2 way communications When using the Audio Linking configuration you can connect two 2 PS 20s to double the load capacity of a channel so more user sta2. SSA A A 3 When PGM 1 is selected the PGM audio is sent to Ch 1 PGM When PGM 2 is selected the PGM audio is sent to Ch 2 Select FIGURE 5 Intercom and PGM Channel Settings 11 Termination Impedance When connecting two 2 channels on a PS 20 the termination switch must be set to 400Q to account for double termination By setting the termination impedance at 200Q over two channels the power load would decrease to 100Q 1 200 1 200 2 200 1 100 However by setting the termination switch to 4000 when operating over two channels the impedance to each channel is increased to 200Q 1 400 1 400 2 400 1 200 For more information on cable wiring see Figure 4 on page 10 CONNECTING 2 POWER SUPPLIES RTS TW 2 CHANNEL MODE 90 240 VAC CCCH1 CC ELS marsi En S060 Hz 2 OUTPUTS RISZ Sum M CONNEC SETI CH 182 400 1 PER POWER SUPPLY 2001 TOTAL TERMINATION IMPEDANCE 90 240 VAC CONNECTING 2 POWER SUPPLIES RTS TW 4 CHANNEL CLEAR COM MODE 90 240 VAC EC CHT sd 0 60 Hz TOUTPUTS RIS Z EACH CONNECTOR CH 182 4001 PER POWER SUPPLY 200 1 TOTAL TERMINATION IMPEDANCE 90 240 VAG CC CM1 ES Cn RTS CH 182 vas 384 S UTPUTS RI SERCH TOA 2 EAC TENE AORET TET CH 147 FIGURE 6 Termination Impedance Configuration Diagram 12 ms MO O A MRT 327 229810 E Y 090 0 gt KE MRT 327 FIGURE 7 Rack Mount Conf
3. Total of two channels with speaker stations without call lights Total of two channesl with speaker stations with call lights One channel speaker stations without call lights One channel speaker stations with call lights One channel with MRT327 and or 8 Ohm speaker Channel Configuration The PS 20 is capable of three different modes of operation RTS TW 4 channel mode RTS TW 2 channel mode and Clear Com 2 channel mode see Figure 4 RTS TW 4 channel GND CH 1 3 POWER amp AUDIO RTS TW 2 channel CH 1 AUDIO amp POWER CH 2 AUDIO amp POWER Clear Com 2 channel CH1 CH2 CH2 FIGURE 4 Channel Configuration 10 Ch 1 8 Power ais ala Tan KI A A ee 1 O d 2 1 O gt 2 8 1 o 012 AA 1 pa oO Nae PS j KT A od JA ee es de alae Ch 2 amp Power When PGM 1 is selected the PGM audio is sent to Ch 1 When PGM 2 is selected the PGM audio is sent to Ch 2 095 L uann ww Ae Ch 1 8 Ch 3 amp giS Power Power al e rn o 2 o2 1 0 3 1 SD2 a LN EL tin Y YA N 7 fji SNE X x TN Se Ch 2 N Ch 4 When PGM 1 is selected the PGM audio is sent to Ch 2 When PGM 2 is selected the PGM audio is sent to Ch 4 or nn pl cn y cO AS ov Power Power y MASS in Ny PE CO N 1 0 ge CE De 1 0 012 1 0 012 j e 1 i 2 r OM 2 2 Jacn 2 4 Baa pa d ALL pa d gt A 2ch 1 2 182 3 A 629 ld AT 7 T TT Chat A Ch 2 S
4. 16 SAFETY CONSIDERATIONS somicdinn inercia a EE REE EEEE EE EE E NiE 16 ACCESS iii aaa di cdi 16 PS 20 QUICK START a A istos so oora dk l d kadades sdas ssaa k ea saada 17 CHAPTER 1 Introduction Description The PS 20 is a complete and independent power supply with the added features of two and four channel operation monitoring 2 channel program input audio linking and three mode of operation RTS 2 channel RTS 4 channel and Clear Com mode The PS 20 features two channels of communication where both channels are wet meaning there is power on each channel RTS 2 channel mode In RTS 4 channel mode the audio signals and DC exist on the same wire unlike in Clear Com mode where the audio and power are on separate lines Where the PS 15 has power on CH 1 only power is on both CH 1 and CH 2 on the PS 20 The PS 20 has a 3 pin XLR male connector on the front of the system where a user can connect to the power supply and monitor activity on CH 1 or CH 2 see Figure 1 on page 5 In Clear Com mode only channel one 1 is heard A user station or beltpack is required to use a headset with this feature A single PS 20 Power Supply can power up to 50 user stations depending on the model and combination see specifications If still more user stations or beltpacks are needed two PS 20 Power Supplies can be joined together to double the power capability A pair of standard stereo plug connectors are available
5. source Access To get inside the Modle PS 20 remove the screws on the top and bottom covers Slide covers off toward the back of the unit 16 CHAPTER 3 PS 20 Quick Start This quick start is to be used to get your PS 20 unit initially set and running Further configuration may be needed for more advanced operation RTS dal Power 2 4 2x4 ess 2ch 1 2 182 PER er Cy NA A EN o RTS PGM PGM gt 1 lt H Monitor Select Level PS 20 Power Supply 90 240 vac CCCH1 CC CH2 c gt RTS 4 CH 182 RTS 4 CH 384 E a gt O Q y AUDIO IN 5 A R j a i PE AUDIO OUT E 50 60 Hz 5 4 lt E y Na am OUTPUTS RTS 2 EACH CONNECTOR CH 1 amp 2 On the back of the PS 20 unit NOTE On the front of the PS 20 unit verify the Power Switch in turned OFF 1 Connect the supplied power cord to the unit and then plug the unit into the desired power outlet 2 Select the mode in which you want the unit to operate CC Clear Com RTS 4 RTS 4 channel or RTS 2 RTS 2 channel For an overview of the channel modes see Figure 4 Channel Configuration on page 10 3 Select the Termination Impedance either 200 2 or 40042 4 Using Figure 8 on page 14 configure the external devices you want to use with the PS 20 unit If using an external audio source you want both
6. RT Digital Matrix Intercom Innovating the Future of Communications PS 20 Power Supply User Manual 9350 6786 100 Rev E April 2009 PROPRIETARY NOTICE The product information and design disclosed herein were originated by and are the property of Bosch Security Systems Inc Telex reserves all patent proprietary design manufacturing reproduction use and sales rights thereto and to any article disclosed therein except to the extent rights are expressly granted to others COPYRIGHT NOTICE Copyright 2009 by Bosch Security Systems Inc All rights reserved Reproduction in whole or in part without prior written permission from Bosch is prohibited WARRANTY NOTICE See the enclosed warranty card for further details CUSTOMER SUPPORT Technical questions should be directed to Customer Service Department Bosch Security Systems Inc 12000 Portland Avenue South Burnsville MN 55337 USA Telephone 800 392 3497 Fax 800 323 0498 Factory Service 800 553 5992 RETURN SHIPPING INSTRUCTIONS Customer Service Department Bosch Security Systems Inc Lincoln NE info rtsintercoms com Telephone 402 467 5321 Fax 402 467 3279 Factory Service 800 553 5992 Please include a note in the box which supplies the company name address phone number a person to contact regarding the repair the type and quantity of equipment a description of the problem and the serial number s SHIPPING TO THE MANUFACTURER Al
7. SERVICE ALERTING YOU OF DANGEROUS PERSONNEL IMPORTANT VOLTAGE INSIDE THE INSTRUCTIONS PRODUCT ACCOMPANYING THE PRODUCT SEE MARKING ON BOTTOM BACK OF PRODUCT WARNING TO PREVENT FIRE OR ELECTRICAL SHOCK HAZARD DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE This product is AC only Ny Table of Contents INTRODUCTION adi aeS 3 DEsScTIpUOM 6 MS A A ea 3 JAKA od EIS 4 Reference Viw rt ill io 5 Specifications in 6 Installati n ii a rda San EN n 7 MECHANICAL INSTALLATION vecceccescescescesscsscssscssessesscucecsesssssscescascsussessesesscsscascssessssssusscesessesssssssessesecsecsesesssssesscsuesesseusesseaseaseauees 7 ELECTRICAL INSTALLATION cccsscsscssssscsssessccscssccscssssssssssesscscssssscsesscescsacsaccsssssssscesessessssesesscsscesesescssessssscsasseesesssssssessesseseeassaseasees 7 USING TWO PS 20S AND AUDIO LINKING TWO WAY COMMUNICATIONS usccccssssscesessecesesececesaececseeeecnesaeeceesaecenesaeeecusaeeenesaeeeensaes 7 CHAR CONT UTI OM s nensis ancien n a E a a Aa ETE EN EAEE A A a T aE eaa 10 Termination Impedance sisii AA AAA E A A AAA odes e 12 COTA AAA EAMIS desi exces scoa dads aan RAE RE E La E EEE E kail aka kai 14 OPERATION AND MAINTENANCE 0 eliidi 15 POWER Indications is 15 Fault Indications aid dd ia ld 15 Montor Output saidi va a aaa maia 15 Mode Selection WC 15 Termination Impedance Switch a SAA AA AA AA IAS 13 AAA A O OO CO A i E a A e EE A O EEES 16 Maintenant dit
8. Two Wire Output Levels Nominal 30 VDC Unbalanced selectable 200 Q 400 Q Monitor Output Nominal Gain of 0 dB for 1000 mVRMS input level on the program input 30 VDC nominal 100 mA maximum Audio Link Nominal input 2 dBu with a Gain of 0 dB Connections Type 3 pin XLR male RTS 2 channel Mode Pin 1 Common for Audio and DC Pin2 30 VDC and Mixed Audio Channel 1 Pin3 30 VDC and Mixed Audio Channel 2 Type 3 pin XLR male RTS 4 channel Mode Pin 1 Common for Audio and DC Pin2 30 VDC and Mixed Audio Channel 1 or 3 Pin3 Mixed Audio Channel 2 or 4 Type 3 pin XLR male Clear Com Mode Pin 1 Common for Audio Pin2 30 VDC Pin3 Mixed Audio Channel 1 or 2 Program Input Type 3 pin XLR female Pin1 Common Pin2 Balanced Audio Input Pin3 Balanced Audio Input Audio Link Input 1 4 Stereo Phono Jack Tip Channel 1 Ring Channel 2 Sleeve Ground Output 1 4 Stereo Phono Jack Tip Channel 3 Ring Channel 4 Sleeve Ground AC Input Type Universal AC Plug Pinl Hot Pin2 Neutral Pin3 Earth Ground Monitor Output Type 3 pin XLR male RTS 2 channel Mode Pin 1 Common for Audio and DC Pin2 30 VDC and Mixed Audio Channel 1 Pin3 30 VDC and Mixed Audio Channel 2 Type 3 pin XLR male RTS 4 channel Mode Pin 1 Common for Audio and DC Pin2 30 VDC and Mixed Audio Channel 1 Pin3 Mixed Audio Channel 2 Type 3 pin XLR male Clear Com Mode Pin 1 Common for Audio Pin2 30 VDC Pin3 Mixed Audio Channel 1
9. ce that both channel 1 and channel 2 can listen to at the same time for example a radio A Channel Select switch on the front panel assigns the program to either or both channels A Level control adjusts the program level to the intercom channel Intercom channels are connected to the rear panel of the PS 20 with 3 pin XLR connectors The IMPEDANCE SELECT switch on the rear panel allows each channel to be set for 200 ohm or 400 ohm operation Select 200 for each channel operated independently Select 400 Q for each channel connected to another channel Reference View RTS PGM Monitor Select PS 20 Power Supply 127 90 240 VAC Fe CCCH2 ae Ji i RTSI4CH384 a A 5 50 60 Hz 6 AD 9 10 1 FIGURE 1 PS 20 Reference View NO PR Channel Indicator LEDs Provides a visual indication of the channel DC power You will see a green LED for normal operation and a red LED when there is an overload or short circuit Monitor Output Front panel connection for system administrator to listen can talk as well to channel 1 channel 2 or both This is a 3 pin XLR male In Clear Com mode only channel one 1 is heard A user station or beltpack is reguired to use this feature Channel Select Use the channel switch to select channel 1 channel 2 or both channels The channel select determines which channel the Program Input is connected Level Control Controls the
10. channel 1 and channel 2 to hear connect the device using the Program input connection on the back of the PS 20 unit 6 Turn the PS 20 ON 17
11. ee position mode selection switch where you can choose the mode in which to operate You can choose between RTS TW 2 channel mode RTS TW 4 channel mode or Clear Com mode For channel configuration information see Channel Configuration on page 10 Termination Impedance Switch Termination Impedance is necessary when two channels of power are connected whether between two PS20s or on the same unit When connecting channels the termination switch should be set at 4000 so it equals 2000 on each channel For more information on termination impedance see Termination Impedance on page 12 15 Program Input If a program source is connected to the PROGRAM INPUT connector on the back of the PS 20 it may be routed to either CH1 CH2 or both using the CHANNEL SELECT switch Use the LEVEL control to adjust the program level on the selected channel NOTE In 4 channel mode the program input is routed to CH2 CH4 or both For more information see Figure 5 on page 11 Maintenance Safety Considerations Service should be performed only by qualified service personnel Any adjustment maintenance and repair of the opened equipment while any power or voltage is applied should be avoided as much as possible and should be carried out only by a skilled person who is aware of the hazard involved It is possible for capacitors inside the equipment to still be charged even if the equipment has been disconnected from its power
12. igurations for the PS 20 DESKTOP MODEL WITH RUBBER ADHESIVE FEET PORTABLE SELF STANDING WITH MCP 8 SINGLE RACK MOUNT WITH MCP 2 DUAL RACK MOUNT WITH MCP 1 DUAL RACK MOUNT WITH MCP 1 AND MRT 327 DUAL RACK MOUNT WITH MCP 1 AND MCE 325 STACK MOUNT WITH MCP 4 AND MRT 327 STACK MOUNT WITH MCP 4 AND MCE 325 13 Configuration Diagrams 1 POWER SUPPLY MRT 327 USER STATION RTS TW 2 CHANNEL MODE 1 POWER SUPPLY MCE 325 USER STATION RTS TW 4 CHANNEL MODE 1FB325 BELTPACKS 2 POWER SUPPLIES RTS TW 4 CHANNEL CLEAR COM MODE FIGURE 8 Configuration Diagrams BP319 351 BELTPACKS 14 CHAPTER 2 Operation and Maintenance Power up Indications Turn on the Power switch During normal operation the two CHANNEL STATUS indicators should be lit green Fault Indications If there is a fault on a channel the CHANNEL STATUS indicator for that channel will turn RED Possible causes of a fault include over voltage over current short circuit to ground or severe brown outs Monitor Output Use the monitor output to monitor channel 1 channel 2 or both channels at the same time RTS 4 channel mode You can only monitor channels 1 and 2 Clear Com mode You can only monitor channel 1 NOTE A user station or beltpack is required to use this feature Mode Selection Switch The PS 20 has a thr
13. l shipments of product should be made via UPS Ground prepaid you may request from Factory Service a different shipment method Any shipment upgrades will be paid by the customer The equipment should be shipped in the original packing carton If the original carton is not available use any suitable container that is rigid and of adequate size If a substitute container is used the equipment should be wrapped in paper and surrounded with at least four 4 inches of excelsior or similar shock absorbing material All shipments must be sent to the following address and must include the Proof of Purchase for warranty repair Upon completion of any repair the equipment will be returned via United Parcel Service or specified shipper collect Factory Service Department Bosch Security Systems Inc 8601 Cornhusker Hwy Lincoln NE 68507 U S A Attn Service This package should include the following Part No Description Qty 90007854000 US Power Cord or 90007854100 Euro Power Cord 1 or 90007854200 UK Power Cord 90107854000 Final Assy PS 20 1 550006100 Power Cord 1 93506786100 User Manual 1 38110387 Warranty Statement 1 THE LIGHTNING FLASH AND CAUTION TO REDUCE THE RISK THE OF ELECTRIC SHOCK DO NOT EXCLAMATION ARROWHEAD WITHIN REMOVE COVER NO USER POINT WITHIN THE THE TRIANGLE IS A SERVICABLE PARTS INSIDE TRIANGLE IS A WARNING SIGN REFER SERVICING TO WARNING SIGN ALERTING YOU OF QUALIFIED
14. on the back of the power supply to connect two PS 20 power supplies through audio linking The PGM IN 3 pin XLR female connector can be used to send Audio to CH 1 and or CH 2 for example a radio station that users can listen to while they work Features Selectable Mode Operation Audio Linking Monitoring Status Indicators Program Input Intercom Channels Connections Selectable Termination Impedance The PS 20 is selectable between RTS 2 channel RTS 4 channel and Clear Com mode Audio Linking allows you to connect up to two PS 20s with a standard stereo cable There is an Audio Link for CH1 and CH2 and an Audio Link for CH3 and CH4 connection for two way communications To learn how to configure Audio Linking Figure 2 Audio Linking Two way communication configuration on page 8 The 3 pin XLR Monitoring Output connector allows the user to monitor a channel or channels A user station or beltpack is required to use a headset with this feature NOTE In Clear Com mode only channel one 1 is heard There is a green status indicator for each channel Each of these indicators will remain lit during normal operation but will turn RED during a channel current overload condition Output current is automatically reduced during an overload and normal operation is restored when the overload is removed There is a Program Input connector on the rear panel This can be used to connect a devi
15. tions can be added Pin out assignments are as follows Input 1 4 Stereo Phono Jack Link 1 2 Tip Channel 1 Ring Channel 2 Sleeve Ground Output 1 4 Stereo Phono Jack Link 3 4 Tip Channel 3 Ring Channel 4 Sleeve Ground Initial PS 20 Power Station 90 240 VAC CCCH1 ak ti CH2 Jeg ars kara 384 Ox P z i 50 60 Hz 4 OUTPUTS RISEEREH CONN EACH CONNECTOR CH TET CH 182 Second PS 20 Power Station 90 240 VAC CCCH1 CCCH2 50 60 Hz a Sas 4 OUTPUTS RTS 2 EACH CONNECTOR CH 182 FIGURE 2 Audio Linking Two way communication configuration Program Inputs A program source may be connected to the PROGRAM INPUT connector on the rear panel Pin assignments are as follows Pin 1 common ground Pin 2 balanced audio input Pin 3 balanced audio input To connect an unbalanced program source do the following 1 Connect pin 3 to pin 1 2 Connect program ground to pin 1 and program to pin 2 AC Power Plug the AC power cord into the PS 20 and into an AC mains outlet NOTE The PS 20 is capable to run at 90 to 240 VAC therefore operation at 100 110 volts or 200 220 volts does not require any modification or change Refer to Maintenance on page 16 50 45 40 35 30 25 20 15 Number of Beltpacks and User Stations i e BP 319 BP 325 RM 325 BP 351 10 Number of Speaker Stations i e SPK 300L or WMS 300L FIGURE 3 Capacity Graph
16. volume of the program output selected channel 1 channel 2 or both ON OFF switch Powers the PS 20 power supply AC Connection This unit accepts any input power in the range of 90 to 240 VAC 50 to 60 Hz Mode Selection Switch Allows you to select between RTS 2 channel RTS 4 channel or Clear Com modes of operation For more on Modes of Operation see Mode Selection Switch on page 15 Termination Impedance Switch Allows you to select between either 200Q or 400Q 400Q impedance termination is most commonly used when connecting two channels on two different PS 20s together PGM IN A 3 pin XLR female connection allows the user to put a program source 1 e a radio on the channels Output Connectors Channel 1 and Channel 2 Output connectors can be configured to work in RTS TW 2 channel RTS TW 4 channel or Clear Com mode These are 3 pin XLR male Audio Link CH1 amp 2 and CH3 amp 4 Connects up to two PS 20s together For more information see Figure 2 on page 8 Rubber Adhesive Feet The unit can be rack mounted or can use feet for desktop usage For more information on rack mounting options see Figure 7 on page 13 Specifications General Input Voltage 90 to 240 VAC 50 to 60 Hz Output Voltage 28 VDC to 32 VDC Output Current 1 80 Amps Maximum per channel Termination Impedance Selectable 200 Q 400 Q Ripple lt 0 2 V Program Input Levels Nominal 2 dBu Balanced High Impedance gt 10 kQ
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