Logic 3 RAT 1 User's Manual
Contents
1. Be sure all speakers connected to both A and B are taken into u 1 IR control in main room consideration when paralleling speakers so that the amplifiers are not loaded Ea by an impedance that is lower than that specified by the manufacturer K ie eet 283M Blink IR SPEAKER TERMINALS A V RECEIVER s kaaet z to n o a AMPLIFIER ETC lt Back Panel s 789 44 CD Changer 4 782 00 Connecting Block Q goog wt Power Supply 283M Blink IR o Place on FRONT z EO o aemennmemEEEna E Panel IR Sensor 5 g F e 283M Blink IR HE Mouse Emitter a TELTEEETTTIE O ENE To 120 VAC 5 9 unswitched TTTTITITTITI LTT TTITLiT iti iti iiiiriii iti iti trite iti iii iti PNAN PEIA AO AAEE E AE A RAT1 1 O as AUTO TRANSFORMER RAT1 2 wantech Rr R OTE AUTO TRANSFORMER Y x tech Ters of em m ZEEE WIV tee l a wae TT ee af RAT1 3 RAT1 O REMOTE AUTO TRANSFORMER O l o 9 DODD ie gt A MHLIJI SPEAKER a zk o l OUTPUT e l e Zy E STATUS POWER MO L L L R R 12VDC s o STATUS POWER HE ii ERER Iii o L R L R L R o IR V 1 oe hae 62 64 66 Dinky Link IRET G V 780 80 5 MIRV1 IR Aan MIRV1 Smart Ms Wall Speakers J Box Volume Volume mZ IR Receiver Control Control Pad BS 8 ROOM 2_ Es Fig 3 A RAT1 System Using a Common IR Bus 0 y 0 Q x O P d p lt o C 3 0 O J a P o EE RaT A Oech2. 10 Serial Combiner 793 10 Serial Combiner CONTROLLED COMPONENTS O Satellite Receiver af 283M Blink IR CD Changer O oooOoO 5 4 4 3 3 SERIAL CONTROL SERIAL CONTROL COMBINER 793 10 COMBINER 793 10 2 CONTROL INPUTS 2 CONTROL INPUTS r rr 789 44 Connecting Block a 283M Blink IR Mouse Emitter B A CONTROL OUTPUTS CONTROL OUTPUTS TET T TTT io yyy Daisy Chain TOES a ene ta connection Use i l To IRIN 3 5 3 5mm Mini To IR IN eee unite sineasenas and GND piace and GND to Stripped Stripped 2 gt needed on each RAT1 Pt 6017400 on each RAT1 Side Pt 6015900 Fig 5 Daisy Chaining 793 00 s in Multiple RAT1 Dedicated IR Bus Systems Driving Multiple Speakers From a Single RAT1 In some cases you may need to drive more than one set of speakers from asingle RAT1 suchas in large rooms or adjoining areas where common volume operation is acceptable A typical system is shown in Fig 6 RAT1 REMOTE AUTO TRANSFORMER xantech FROM AMPLIFIER s SPEAKER TERMINALS soa l SPEAKER OUTPUT STATUS POWER L L R R i ood ooo O 1 Use the same charts and rules for setting the impedance jumpers In Fig 6 all 8 Ohm speakers and an amplifier capable of handling an impedance of 4 Ohms is assumed resulting in a jumper setting of S1 Note that two M
3. 5 Calculate the total paralleled impedance of the 8 Ohm group next by dividing 8 Ohms by 7 8 7 1 14 Ohms E o A otec es RaT M 6 Multiply 1 14 by 8 for the S8 setting 9 12 Ohms 7 Next calculate the overall paralleled impedance Z Since three paralleled groups are used in this example the calculation is as follows Z 1 1 16 1 16 1 9 12 4 26 Ohms Since this yields more than 4 Ohms the S8 setting for the 4 Ohm group the S8 setting for the 6 Ohm group and the S8 setting for the 8 Ohm group are the correct ones to use Impedance Setting Tips 1 You may use the above method to calculate the correct impedance matching condition for practically any combination of speakers and RAT 1s 2 Use the lowest S setting possible consistent with the requirement to keep above the minimum safe operating load impedance for the amplifier You may have to try 2 or 3 values of S for each impedance group and recalculate the overall paralleled impedance Z each time before you arrive at the final correct value 3 When you test the system you may find volume differences between the impedance groups when all RAT1s are set to max volume This is normal and is usually not a problem since the user will be listening at lower levels most of the time If you feel it necessary to even out the volume levels move the S jumpers to the next higher number on the RAT 1s that feed the loudest group NOTE While speakers of di
4. Determine the rated speaker impedance refer to the manufacturer s specifications it must be the same for all speakers used in the system 2 Determine the total number of stereo speaker pairs used in the installation 3 Determine the minimum safe amplifier operating load impedance refer to the manufacturer s specifications 4 Find the correct jumper position from the above charts 5 Place the jumpers in the same position on each RAT1 used in the system Example 1 13 pairs of 8 Ohm wall speakers are to be used with 13 RAT1 s in a 13 room system all driven by one amplifier rated for 4 Ohms minimum safe operating load impedance 1 Refer to the chart WHEN USING 8 OHM SPEAKERS 2 Locate the number 13 in the top row 3 On the next row opposite 4 OHMS and just below 13 note the letters S8 These signify the required impedance multiplier 4 The two jumpers therefore one for each channel need to be plugged onto the S8 pins on each RAT 1 that feeds each room Example 2 3 pairs of 4 Ohm wall speakers are to be used with 3 RAT 1 s ina 3 room system all driven by one amplifier rated for 8 Ohms minimum safe operating load impedance 1 Refer to the chart WHEN USING 4 OHM SPEAKERS 2 Locate the number 3 in the top row 3 On the third row opposite 8 OHMS and just below 3 note the letters S8 These signify the required impedance multiplier 4 The two jumpers therefore one for each channel need to be plugged
5. E 7 INSTALLATION DEDICATED IR BUS SYSTEM Fig 4 illustrates an installation where each remote room has a Dedicated IR Bus going to the RAT 1 that controls it The IR bus is not connected in common as itis in Fig 3 This eliminates the need for dedicated remotes allowing you to carry the same remote s from room to room t is configured as follows 1 Again for simplicity only three RAT 1 s are shown Larger systems may be configured using the same connection techniques up to a max of 16 RAT 1 s 16 is the maximum number using 8 Ohm speakers and an amplifier with a minimum loading impedance of 4 Ohms See chart on page 3 2 Each Dedicated IR Bus connects the 780 80 J Box IR Receiver the two MIRV1 Volume Controls a 480 00 Dinky Link IR Receiver and a Smart Pad keypad to their respective RAT 1 s 3 In order to control the common source components in a Dedicated IR Bus system it is necessary to use a 793 00 Serial Control Combiner connected as shown in Figs 4 amp 5 The 793 provides diode isolation between the IR signal lines but allows common operation of the source equipment through the 789 44 Connecting Block as shown Set the LOGIC POLARITY SELECTOR DIP switches on the 793 for active high operation that is all even numbered switches to ON all odd numbered switches to OFF 4 The input and output ports on the 793 are 3 5mm mono mini jacks Use matching mini plug cables with stripped ends when connecting Polar
6. INSTALLATION INSTRUCTIONS RAT 1 REMOTE AUTO TRANSFORMER The RAT1 is an infrared remote controlled stereo speaker volume control with impedance matching capability It allows individual volume control of from one to 16 pair of stereo speakers from one stereo power amplifier using one RAT1 for each stereo speaker pair It is controlled with any Xantech IR Receiver or keypad or with Xantech MIRV1 motorized volume controls The RAT1 maintains correct imped ance matching between the amplifier and the speak ers with the use of instant setting S1 to S8 jumpers located on the unit This eliminates the need for separate impedance matching devices in multi room installations FEATURES AND SPECIFICATIONS e 10 position relay driven stepped auto transformer design RAT1 REMOTE AUTO TRANSFORMER xantech STATUS POWER Ecc 12VDC e Tri Fi winding system for highest quality audio performance e Amplifier Input 4 screw plug in connector e Speaker Output 4 screw plug in connector e IR STATUS amp 12V 4 screw plug in connector e STATUS Input Jack 2 1mm coaxial type e POWER Input Jack 12V 2 1mm coaxial type AMPLIFIER SPEAKER INPUT OUTPUT L L R R L L R R RRRA FAFA ig 1 The RATI e Power Consumption 300 mA 12V DC Use Xan
7. IRV1 s are used one at one location in the room and the 2nd in another for convenience of use They both control the same volume level and 786 00 Status Power Supply L ig 12 DC 780 80 J Box R TAV g MIRV1 Volume IR Receiver Control L i E 782 00 Power Supply To 120 VAC unswitched IR sT a V o MIRV1 Volume Control 3 LARGE ROOM OR AREA S track each other Fig 6 Driving Two Speaker Pairs From One RAT1 12 8 00 Rev C Ce Oech ee 8411 ae
8. ffering impedance can be accommodated using these procedures it is highly recommended you not do so on a regular basis The easiest and best performing installation is achieved by using speakers of the same impedance throughout the entire system Then use the charts to determine the correct jumper S settings INSTALLATION COMMON IR BUS SYSTEM Fig 3 illustrates a typical installation using three RAT1 s along with other Xantech products in a 4 room multi room system The principles shown should be used as a guide when planning your own specific installations It is configured as follows 1 For simplicity only three RAT1 s are shown Larger systems up to a max of 16 using 8 Ohm speakers may be used 16 is the maximum number using 8 Ohm speakers and an amplifier with a minimum loading impedance of 4 Ohms See chart in Setting the Impedance Matching Jumpers section 2 Note that a Common IR Bus connects the 780 80 J Box IR Receiver the two MIRV1 Volume Controls a 480 00 Dinky Link IR Receiver and a Smart Pad keypad to each of the RAT1 s In addition it connects to a 789 44 Connecting Block so that the source equipment can be controlled from the remote rooms 3 Since acommon IR bus is used each of the RAT 1 s and its connected MIRV1 where used must use a different IR Code Group number so that the volume level in each room can be adjusted independent of the others To make code group changes refer to the RC68 Programmer In
9. inimum safe operating load impedance 1 Calculate the total paralleled impedance of the 4 Ohm group first by dividing 4 Ohms by 2 4 2 2 Ohms 2 Multiply 2 by 4 for the S4 setting 8 Ohms 3 Calculate the total paralleled impedance of the 8 Ohm group next by dividing 8 Ohms by 7 8 7 1 14 Ohms 4 Multiply 1 14 by 8 for the S8 setting 9 12 Ohms 5 Next calculate the overall paralleled impedance with the following formulae Z 1 1 Z 1 Z 1 2 ete Z overall paralleled impedance Z 1st paralleled group after S setting Z 2nd paralleled group after S setting Z additional paralleled groups when used Since only two paralleled groups are used in this example the calculation is as follows Z 1 1 8 1 9 12 4 26 Ohms Since this yields more than 4 Ohms the S4 setting for the 4 Ohm group and the S8 setting for the 8 Ohm group are the correct ones to use Example 2 2 pairs of 4 Ohm 3 pairs of 6 Ohm and 7 pairs of 8 Ohm wall speakers are to be used with 12 RAT1 s in a 12 room system all driven by one amplifier rated for 4 Ohms minimum safe operating load impedance 1 Calculate the total paralleled impedance of the 4 Ohm group first by dividing 4 Ohms by 2 4 2 2 Ohms 2 Multiply 2 by 8 for the S8 setting 16 Ohms 3 Calculate the total paralleled impedance of the 6 Ohm group next by dividing 6 Ohms by 3 6 3 2 Ohms 4 Multiply 2 by 8 for the S8 setting 16 Ohms
10. ity must be observed as shown in Fig 5 For systems using more than five RAT1 s you will need additional 793 00 s These can be easily daisy chained as shown in Fig 5 5 Since a Dedicated IR Bus system is used each of the RAT 1 s and MIRV 1 s can operate with the same IR Code Group number In this case the Code Group number as received from the factory should be used NOTE When shipped from the factory the RAT1 and MIRV1 s are set to Code Group number 30 Be sure to set the RC68 to the same number lf a particular system requires a code group number change refer to the RC68 Programmer Instructions for code group setting procedures 6 The desired volume commands from the RC68 Programmer see Fig 2 need to be taught into learning remote controls and keypads used in the system You may use the Xantech URC learning remote controllers for this purpose 7 A 490 30 Micro Link IR Receiver plugs into the 789 44 for local control of the source equipment 8 Asin Fig 3 a STATUS system is included NOTE When connecting system devices be sure to carefully match up the terminals according to their markings as follows IR IN IR STATUS ST GND G and 12VDC V Daisy Chaining 793 00 Serial Control Combiners for Control of Common Components Fig 5 illustrates how two 793 00 Serial Control Combiners are Daisy Chained to accommodate additional RAT s in a dedicated IR Bus System This process can be repeated as necessary
11. onto the S8 pins on each RAT 1 that feeds each room EE Ra ee Oech es o M 0 y 0 Q J 0 3 d p lt o C 3 0 O J a 3 o Procedure for Speakers Other Than 4 or 8 Ohms In this case treat all soeakers that are rated between 4 and 7 Ohms as 4 Ohm speakers and use the charts accordingly Similiarly all soeakers that are rated 8 Ohms or higher treat as 8 Ohms speakers Again all speakers used in the system should be the same impedance i e all 6 Ohms all 7 Ohms etc Speaker Wire Recommendations As a rule of thumb use good quality 18 gauge speaker wire for runs up to 30 16 gauge up to 70 and 14 gauge up to 150 The 4 terminal connectors accept wire sizes up to 12 gauge max Procedure for Speakers of Differing Impedance Used in the Same System You may run into installations where you need to combine speakers of different impedance in the same system 8 6 4 Ohms etc This is amore complicated situation that requires some calculation to obtain optimum results You need to find the paralleled impedance for each group of speakers with the same impedance first and pick an S setting for each Then check the overall paralleled S settings to see that the impedance is higher than the minimum safe value specified for the amplifier Example 1 2 pairs of 4 Ohm and 7 pairs of 8 Ohm wall speakers are to be used with 9 RAT 1 s in a 9 room system all driven by one amplifier rated for 4 Ohms m
12. ow All others should be ignored CAUTION While the RC68 can be used as a handheld remote control it is highly recommended it not be given to the final user for the following reasons e Since it includes selectable code groups the user may inadvertently alter the installer configurations e Since the user will require IR commands from other brands of equipment to control the total system in addition to those of the RAT 1 all commands should be consolidated into one learning device for easy use APPLICABLE RC68 BUTTON DESCRIPTIONS 1 IR Emitter Lens 2 Instant Volume Presets These buttons allow direct preset activation of any of the 10 volume steps on the RAT1 Useful for audio scene ambiance settings for rooms or an instant partial mute action The relationship of the RC68 buttons to the RAT1 volume step positions is as follows RC68 Button RAT1 Volume Step A B C 1 OFF MIN VOL ADJ OFF 2 1 3 2 4 3 5 4 6 gt Fig 2 The RC68 6 8 Programmer 7 9 8 10 MAX VOL xeantech RC68 PROGRAMMER 3 VOLUME Up Down buttons Each individual press will cause the RAT1 to increase or decrease volume level by one step over a total of 10 steps Each step causes a change of 3 to 6 dB A maximum attenuation of 35 dB occurs at the lowest active step 2 The lowest step 1 switches the signal off When buttons are held d
13. own volume level changes continuously 4 MUTE ON OFF Separate ON OFF buttons mute and release the signal without knowing what the Status is This is very helpful in a remote room when all adjustments are made blind without any visual aid for status NOTE Mute is released turned off when a VOLUME or Preset Level button is pressed in addition to MUTE OFF 5 Code Group Numbers If more than one RAT1 is used on a common IR controlled bus or is included with other Xantech products that respond to RC68 commands different Code Groups can be assigned by the installer to avoid mutual interaction Refer to the RC68 instructions for Code Group setting procedures NOTE When shipped from the factory the RAT1 is set to Code Group number 30 Be sure to set the RC68 to the same number es otec ee Ra M SETTING THE IMPEDANCE MATCHING JUMPERS The impedance matching jumpers are located under a clear mylar cover on the right side of the top of the unit Remove the two screws for access The proper placement of these jumpers depends on the number of RAT1 s and speakers used in the total installation To set them for the best impedance matching condition refer to the following charts and procedures WHEN USING 8 OHM SPEAKERS Min Amp Number of Speaker Pairs Used imeecancel 1 To af afefe 7 efe ol pehe ase WHEN USING 4 OHM SPEAKERS mesere 1 To Ts a 5 6 7 8 Procedure for all 4 Ohm or all 8 Ohm Speakers 1
14. structions NOTE When shipped from the factory the RAT1 and MIRV1 are set to code group number 30 If you use group 30 or change to a different number be sure to always set the RC68 to the same number 4 When acode group is chosen teach volume commands from the RC68 Programmer see Fig 2 into learning remote controls and the keypad dedicated to each room You may use the Xantech URC learning remote controllers for this purpose NOTE With a Common IR Bus system you cannot carry the same remote control from room to room You must use a dedicated remote for each room into which you have taught the specific RC68 Code Group that operates the specific RAT1 that controls the volume for that room EE RaT ee Oech es o 0 y 0 Q J 0 3 d p lt o C 3 0 O J a 3 o If you wish to carry remotes that have the same codes from room to room use a Dedicated IR Bus System as shown in Fig 4 5 A490 30 Micro Link IR Receiver plugs into the 789 44 for local control of the source equipment i e equipment behind closed doors etc 6 A STATUS system is included This permits the power ON OFF status of the A V receiver or amplifier system to be visible in each of the remote rooms It also permits the power management capability of the Smart Pad to operate 7 The STATUS indicator LEDs on the 780 80 J Box IR Receiver the two MIRV1 Volume Controls and the Smart Pad are powered by a 786 00 Power Supply pl
15. tech Model 786 00 or 782 00 Power Supply operations operation of RAT1 s when on a common IR bus e Factory preset Group Code number is 30 e Independent grounds between channels e 75 watts per channel music power 25 watts per channel continuous e Frequency response 20 Hz 20 000 Hz 1 dB at 1 Watt power input e Attenuation 10 steps at 3 to 6 dB per step 35 dB maximum e Impedance Multiplier Settings S1 S2 S4 amp S8 e Plug in connectors accept wire sizes from 24 to 12 gauge e Flat Pack design permits easy mounting e Dimensions 8 x 4 1 8 x 2 5 8 203mm x 105mm x 67mm ee XA Ls Requires IR commands from the RC68 or RC68 Programmer or from the MIRV1 for volume Using the RC68 Programmer internal E PROM can be set to different group codes for independent 0 D 0 Q J 0 3 d p lt o C 3 0 O 5 ct 3 o RCGS PROGRAMMER REMOTE CONTROL The RC68 and the RC68 programmer available separately contains all the commands necessary to operate the RAT1 e You will need it to program universal learning devices such as the Xantech URC 1 learning remote the Xantech Smart Pads the 590 Programmable Controller the 710 Fone Link etc with commands that operate the RAT1 e NOTE The RC68 codes operate several other Xantech models as well such as the RS41AV CC 12 ZPR68 MIRV1 etc Therefore only the button descriptions that apply to the operation of the RAT1 are listed bel
16. to accommodate the number of RAT s needed in the system Simply connect the B CONTROL OUTPUTS port of the next 793 into the A CONTROL OUTPUTS port on the preceding 793 with a 3 5 to 3 5mm mono mini cable as shown NOTE Be sure that all ten LOGIC POLARITY SELECTOR DIP switches on each 793 are set correctly In this case set them for active high operation that is all even numbered switches to ON all odd numbered switches to OFF Eo ee Xone Ch ee AT M MAIN ROOM EQUIPMENT AREA ETC 490 30 Micro Link IR Receiver i e cabinet mounted for IR control in main room CONTROLLED 786 00 STATUS power supply Plug into a SWITCHED COMPONENTS AC Outlet on A V Receiver see text F CAUTION Stereo receivers usually have two sets of speaker terminals A 793 1 0 and B Be sure all speakers connected to both A and B are taken into u 1 lt Serial Combiner consideration when paralleling speakers so that the amplifiers are not loaded Q Satellite Receiver Q Ta A os by an impedance that is lower than that specified by the manufacturer n see nar a wo 7 SPEAKER TERMINATES A V RECEIVER Bu a 283 00 Emitter sio i AMPLIFIER ETC fa 5 Sue B CON Back Panel e mee ge 789 44 5 annnnnnnnn nl o z No0 O o000 4 eee lt 9 E z Connecting Block z e ih O l i P ED 283M Blink IR 3 g i Place on FRONT 2 of owe amp 283M Bi gt orot at
17. ugged into a SWITCHED AC outlet on the A V receiver or amplifier system When the switched outlet is ON 12 Volts from the 786 00 passes through one of the 4 bus conductors STATUS line to the LED indicators NOTE A resistor can be placed in series with the STATUS terminal at each IR receiver IR receivers only if So equipped for adjustment of the brightness of the Status LED See the specific installation instructions for the IR receiver for details NOTE When connecting system devices be sure to carefully match up the terminals according to their markings as follows IR IN IR STATUS ST GND G and 12VDC V Power Supply Considerations Up to 3 RAT1 s plus associated MIRV1 s and IR components can be used with one 782 00 Power Supply e g 9 RAT1 s with associated components would require 3 of the 782 00 Power Supplies Typical power Supply connections are shown in Figs 3 4 and 6 EE co es Xone es Rar M MAIN ROOM EQUIPMENT AREA ETC 786 00 STATUS power supply Plug into a SWITCHED 490 30 CONTROLLED COMPONENTS AC Outlet on A V Receiver see text Micro Link _ IR Receiver Satellite Receiver CAUTION Stereo receivers usually have two sets of speaker terminals A i e cabinet mounted for and B
18. vik want Blink IR s Panel IR Sensor 782 00 m 25 yess manne gt Q GND a GF E e Mouse Emitter Power Supply lt 55 oa E eas a CES F aiaia oE T faunausniauanussane z ow To 120 VAC Pi gt J s 28 unswitched z a z Ta age 5 A ii o Oe eee ater re iT T tbe E RAT1 1 RAT1 2 p TRANSFORMER Ri m meij O RI OTE AUTO TRANSFORMER AA x tech EEANN ii b ee a POWER SooF LAL L L R R oe N AF HA z 12vDC fy J L o j T IHE 4 RAT1 3 O Eo AUTO TRANSFORMER O eo a E o OO PORES LEED a xanteth l a O NNNW 5 a MALI SPEAKER a ZEOG INP OUTPUT E STATUS POWER b Lk L L L R R O Sra E O a suas l ok i oe ar 2am ile k o STATUS POWER ZG L RI L L R R o 12VDC PLV eo oS OF mi Task 12VDC wel ui l i l I e L R L R L R I J l HASON XANTECH sel pey S 62 64 66 Dinky Link IR T a v 780 80 0 MIRV1 ae MIRV1 Wall Speakers Ti IR Receiver Smart 5 amp J Box Volume Volume O o9 TM 2 amp IR Receiver Control Control Pad Segas Fig 4 A RAT1 Dedicated IR Bus System EE RaT A Oeh e 0 y 0 Q x O P d p lt o C 3 0 O J a P o 7 INSTALLATION cont d 793
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