DuraWatt DSATX 220-Watt DC-DC ATX Power Supply User Manual
Contents
1. Main Countdown Timer 2 blinks Power Down after shutdown pulse is sent 3 blinks N A 4 blinks Over or Under Temperature Condition Are you using a fan 5 blinks Power Supply Overload or Fault ACC must go low to clear a fault 3 4 Basic Mode Timing Diagram Mode Accessory J5 JN Engine Running Ai N t2 5V Standby N MB Power Switch JP1 J JN Computer On N User Switch JP1 t1 Time between ACC going High and the Computer Startup Pulse TURNONDELAY Default 1s t2 Time between ACC going Low and the Computer Shutdown Pulse Set by P1 Default 600s P1 50 t3 Time between Computer Shutdown Pulse and 5V Standby OFF Default 90s Max 2s Min User Switch is optional The DSATX only listens for User Switch during the t2 Countdown Mode LED 1 blink 3 5 Features Explained 3 5 1 Startup Shutdown Sequencer The DSATX is has the ability to turn on and turn off the computer via the JP1 pins G1 G2 connection Connecting a 2 pin jumper wire will allow the DSATX to tell the motherboard to turn on and turn off by simulating a power button press The DSATX knows if the motherboard is on or off and will only send the startup pulse if off and the shutdown pulse if on This way the DSATX does not get into a weird state where it turns the computer on off when it wasn t suppose to due to the user issuing a manual startup shutdown 3 5 2 Input Voltage Monitoring and Engine Cranking DSATX Manual Co2. ACC line to a switched 12 volt connection in the car or through a switch to a constant 12 volt battery connection This connection does not need to be heavy gauge e Connect a 2 pin jumper cable between location G at JP1 and the Motherboards Power On header This will allow the DSATX to turn on and off the motherboard by simulating a power button press POLARITY MATTERS HERE e Get P1 to set the time before shutdown Adjustable between 0 20 minutes by default in Basic Mode e Set P2 jumper to set the low voltage cutout voltage To minimize this feature set it to 10 volts fully counter clockwise P2 is adjustable between 10 12 volts e Apply 12 volts to ACC by turning on the ignition or by flipping a switch and you re ready to go 3 User Guide 9 1 Theory of Operation The basic idea of the DSATX is this You want to put a computer in your car but you don t want to worry about turning it on and off you don t want to worry about the temperature extremes and you don t want to worry about the harsh automotive electrical environment You also want to have the ability to go to the gas station and have the computer still running while you pump and pay so when you come back you don t have to wait a boot up When you get home you don t want a dead battery This power supply is the only one on the market that allows you to do all these things and have full control of the settings The following example will illustrate some of the features of Basi
3. C B Input Voltage at VIN C 12 Volt Rail Output D 5 Volt Rail Output E 3 3 Volt Rail Output F Low Voltage Threshold P2 Adjusts this in Basic Mode G Number of Seconds for main Shutdown Timer P1 Adjusts this in Basic Mode H Yes No Good Bad VIN Voltage Good Acc Pin High Temp Good PS ON Asserted I State of Shut Down Controller 0 Sleep 1 Startup 2 Running 3 Count Down 4 Shut Down 6 Bad Temperature 7 Fault J Relative Count Value for Shutdown Counter seconds 4 5 Extended Basic Programming Examples In the below example we program the DSATX Tell it to use the Pots P1 P2 for the Timer1 Main Countdown Timer and the low voltage threshold cutout P2 selects a value between 10 and 12 volts Maxtimer1 is the maximum seconds you can set with the P1 Pot Basically if you set the pot half way and had Maxtimer1 set to 1200 it would shutdown in 600 seconds If you set the Maxtimer1 to 0060 you would have between 0 and 60 seconds to select with the P1 Pot You must type 4 numbers Ex 0123 gt E Type the letter E Enable Writing y n gt y Type the letter y gt P Type the letter P PROGRAM MODE Use POTs y n gt y Type the letter y MAXTIMERI gt 1200 Type 1200 must type 4 numbers VTURNON y n gt n Type the letter n DONE In the below example we program the DSATX to hard code the values for the Timer1 Main Countdown Timer and the low voltage threshold This will ove
4. DuraWatt DSATX 220 Watt DC DC ATX Power Supply User Manual Version 1 0 Table of Contents PME COUDMESCuaCoe rrn RR M 1 1 1 cerle m 1 1 2 PrOOUCUR NOO eet N 2 E3 EVI AC A I Mcr 2 1 4 Included Contents and Optional ACCESSOLICS cccccccccececaeseeeeeeeeceaeeeeeeeeseeeeaseceeeeeessssaeseeeeeees 2 2 1 Recommended Additional Supplies cece cccccceccsseeeeeeeeeeeeaeeeeeeeeeeeeeeeeeeeeeeesssseaseeeeeeessaeaeeeeeees 3 2 2 Recommended TOO Srecna e E etu n E octet a oan eee rcs d 3 2 3 Connection Overview Diagram cccceccccceceecceeeeeceeeeesaaeeeeeeeeeseaeeeeeeeeeesaaeeseeeeeeeessseaaeeeeessaaansess 3 2 4 PRECAUUONS ANG VVatHihlis s eai doedet oido tatio lim bon de aede nea a ea de c adde dese ne duode usus 3 25 Detailed Connection Dag altis cuc eod auc ucde ees Request utt eo ueque m ecu ERR nie Dd exert iei Eeepers 4 2 6 sig Wille EE 4 2 QUICK INS tallatlOMn Steps xenon aset bed oe Pete e ta bro Scout esed baec feci ue te Gigs ated 5 3s User Guilde tcc 5 els Ilse Of ONSFANOM ee rc puc PS 5 3 2 Modes OFM ODE ANON c c 5 3 9 B COGS oar Sach acre arose eas 6 3 4 Basic Mode Timing DIAG CA E TRIES 6 3 5 Features Explained cusa cet se sudkctiqut es hme tectae saut M EM MM IRI
5. MP I LT M MM ISP PD CE NE 6 4 Seral Port GonnecuVily 5 5 acce a redo eec ees sicco EL D M 8 4 1 oeral FPO ACADIONS ses ea teh tate doctiss etse naue tate rts es cuencas urea aue f deseo 8 4 2 Seral POM OVeIVIBW sssiemsssinitatesirin ei n bete ute dac tewironitaas n udrbetn urb demie at sE etui priva arant 8 4 3 Basic Progiamimilg GOolltol s esmasentenexihsa OR reiecit OO ROEIR anos ERE Lamas aa s quta cuu eiee ST aaa Eih 8 4 4 B slsoziiex WS CC irra E OD ES 8 4 5 Extended Basic Programming Examples ccccccsssscccccssseccccceeeeceeecaaeeeessaeeeeeessuaeeeeeessaaeeeessaaees 9 4 6 Advanced PC AleS m x a 10 4 7 Advanced Feature Tables M rcc 10 cM S nudleci iiber S S nn 11 5 1 zeit D c ee 11 5 2 Mise T NE 11 5 3 Connector Pin LOCATIONS i5 oon scum ea taeanciee P coim ur ere a 12 7 Mpegbox com Limited Warranty sinana a aa Ea a aa dais sa Aa aaa 13 1 Getting Started 1 1 Introduction Thank you for purchasing a DSATX 220 Watt Automotive Power Supply Please take some time to read through this manual before attempting to use this product The DSATX is the most advanced DC DC Automotive Computer Power Supply available It is capable of properly powering most Pentium 4 and AMD based computers in a motor vehicle as well as their accessorie
6. c Mode and how it applies to an automotive install The DSATX is installed as described above The user steps into the automobile and turns on the key ACC goes HI 12 Volts as a result and the DSATX wakes up from Sleep Mode The LED turns on and it sends a startup pulse to the motherboard over the 2 pin jumper connected at JP1 pins G1 and G2 The computer now boots and is up and the DSATX is in Running Mode playing Mp3s doing GPS Navigation etc The automobile goes to the gas station and the driver turns off the key and ACC goes LOW The DSATX now starts the Countdown Timer Countdown Mode and the LED starts flashing once per second The driver gets back in the car starts the car and the computer keeps playing the MP3s without a hiccup The DSATX now is back to Running Mode with the LED full on The user then drives home and turns off the car for the night ACC goes low and the countdown timer starts and then expires The DSATX then sends a pulse again over JP1 pins G1 and G2 to shutdown the computer The shutdown pulse was successful and the computer turned off The DSATX then goes to sleep and preserves battery power 9 2 Modes of Operation Basic Mode This is the factory default mode for the DSATX In this mode the following options are available e P1 and P2 adjustment pots are the only adjustable settings e P1 adjusts the Countdown Timer after ACC goes low the DSATX will wait between 0 20 minutes 10 minutes by default P1 50 e P2 ad
7. e TEMPHIGH 17 0550 0 1 degC Maximum Operating Temperature TEMPLOW 18 0100 0 1 degC Minimum Operating Temperature Can be Positive or Negative TEMPHYST 19 0050 0 1 degC Temperature Stabilization Margin Hysteresis to Prevent Oscillations TEMPLOWSIGN 20 0 1 pos 0 neg Polarity of TEMPLOW Minimum Operating Temperature TEMPTHYST 21 0200 10ms Temperature Time Stabilization Window Temp must stay good bad ENABLE5VSBOFF 22 1 1 yes 0 no Allows 5VSB Rail to Turn Off to Save Battery Life ENABLESHUTDOWN 23 1 1 yes O no Allows unit to Send the Motherboard Switch Press for Shutdown MASTERMODE 24 Q yes 0 AHlows DSA obecascadedwith2ormore DSA ormere Pow EARLYAUXCUT 25 Q yes 0 ne AUX wil ge away as seen as shutdewn pulseis sent uery Index Units Discription PlusVIN 40 N A 10mV The Current Voltage at the VIN terminal Plus12 41 N A 10mV The Current Voltage on the 5V Rail Plus5 42 N A 10mV The Current Voltage on the 12V Rail Plus3 3 43 N A 10mV The Current Voltage on the 3 3V Rail ActualTemp 44 N A 0 1degC The Current Temperature TempSign 45 N A 1 pos O neg The Current Temperature Polarity Current VIN Low Voltage Threshold hardcoded or set by P2 between 10 12 LowVoltThresh 46 N A 10mV volts Current CountDown Timer Value hardcoded or set by P1 between 0 and CountDownTimerVal 47 N A 1s MAXTIMER1 Current State 0 Wakeup 1 Startup 2 Running 3 Count Down 4 Shut CurrentState 48 N A N A Down 5 Sleep 6 Bad Temp MainCounter 49 N A 1s Current Val
8. e DSATX This will allow the DSATX equipped computer system to sit for weeks without depleting the battery As soon as ACC goes high the DSATX wakes from sleep mode If ACC is always tied high the DSATX will never enter sleep mode 3 5 8 Start On Engine Running VTURNON When this feature is enabled with the serial adapter the DSATX will not immediately turn on with ACC going high ACC still needs to be connected as normal however the DSATX will not turn on the computer until the voltage at VIN reaches 13 volts This indicates that the alternator is charging the battery and the battery has sufficient charge to easily run the computer This is useful if the system is approaching the upper limit of the DSATX s capability or if the vehicle sits for a long time It doesn t prevent cranking while running while going from the Count Down state back into the Running state however the cranking while the vehicle has been sitting for a long time is the most likely to go below the 8 volt threshold of the DSATX While the DSATX not surviving engine cranking is unlikely some users like the piece of mind not worrying if this crank is going to be the one to cause a hiccup 3 5 9 AUX Output Signal The connection at location JP1 F1 F2 can be used to provide a signal to an amplifier or auxiliary accessory or slave power supply like the DSX12V to come on after the Turn On pulse is sent This is an open collector output at F1 and F2 is ground A relay or trans
9. gnal Output G2 Gnd Pins F2 F1 Aux Connection for Amp Enable or Slave Power Supply F1 Signal Output F2 Gnd Pins E2 E1 SL SEN RESERVED Pins D2 D1 User Switch will zero countdown timer when shorted D1 Signal Input D2 Gnd Pins C2 C1 User1 RESERVED Pins B2 B1 UserO Shorting Jumper here enables Dumb PSU Mode Pins A2 A1 A1 245V A2 nReset RESERVED P1 Countdown Adj In Basic Mode clockwise rotation adds time to the Countdown Timer 0 20m P2 Low Voltage Adj In Basic Mode clockwise rotation raises the low voltage threshold 10V 12V D8 LED indicator Indicates Operation Timer States and Faults J2 Serial Port Enables Advanced Modes field upgrades and diagnostics Note Do Not Over Turn P1 and P2 only 270 degrees is available 2 6 Bench Testing The DSATX can be tested in the lab before being installed into the vehicle Certain details need to be noted for proper bench testing When connecting bench power use between 12 to 16 volts DC to Vin and Gnd terminals for best results Small jumper wires may be sufficient to turn on the DSATX alone however they will most likely not be adequate to run a computer For the DSATX to turn on successfully the bench supply must be able to provide 2 amps of inrush current Under full rated load the DSATX draws around 18 amps 9 12V input 12 volt bench top power supplies capable of delivering this kind of load are expensive and uncommon Using 12 gauge or heavier wire will provide the best
10. istor is required to deliver a 12 volt output at this location This pin should sink no more than 50mA and has an allowable pull up range of 0 25 volts DSATX Manual Copyright 2006 Mpegbox com Page 7 of 13 4 Serial Port Connectivity 4 1 serial Port Adapters The DSATX was developed to be used with the serial hardware interface standard developed in the Robotics Industry by Acroname Inc The DSATX is compatible with both the USB Serial Adapter and the RS 232 Serial Adapter e RS 232 DB 9 Adapter PN S13 SERIAL INT CONN e USB B Type Adapter PN S19 USB SERIAL INT CONN S13 SERIAL INT CONN S19 USB SERIAL INT CONN C x e 1 22 _ GND GND 4 Logic Out STX 2 Logic Out STX ey E 5V logic In SRX Logic In SRX CIS 4 2 Serial Port Overview DSATX Location J2 has a 4 pin header that matches the connection diagram on the above adapter drawings The 5 Volt power comes from the DSATX and is always active even in sleep mode Be careful not to expose the serial port pins of the DSATX to voltages above 5 volts or short out the pins Connecting the Serial Port adapter backwards will not damage the DSATX or the adapter but it will not function and is not recommended The serial port is setup to use 9600 Baud 8 Data bits No parity 1 Stop bit and no flow control 9600 8 N 1 Computer programs like HyperTerminal or TeraTerm are examples of applications that can be used to interface wi
11. justs the Low Voltage Cutout 10 12 Volts 11 Volts Default P2 50 e No Serial Port Adapter is required e Aswitch connected at JP1 pins D1 D2 User Switch will allow a quick shutdown DSATX Manual Copyright 2006 Mpegbox com Page 5 of 13 Extended Basic Mode This mode requires a Serial Port Adapter see optional accessories above to use This mode is entered by typing an E Character to enable the writing of parameters then a P for Programming extended basic features In this mode all the Basic Mode features apply as well as e P1 Countdown Timer range can be extended e P1and P2 adjustment pots can be bypassed and their values Hard Coded e The VTURNON feature can be enabled allowing the DSATX to not send a startup pulse until the engine is running e Parameters set via the Serial Port stay even when power is completely disconnected They are stored in Non Volatile Memory Advanced Mode This mode is simply going in and hard coding various settings Advanced setting adjustments include button press duration deep sleep disable temperature range adjust etc These settings are accesses by using the Get and Set commands See the Serial Port Section for more information Note modifying the temperature settings to allow higher operating temperatures will void the manufactures limited warranty 3 3 LED Codes OFF System Off Sleep Mode ON Running Mode the computer starts up in this mode does not indicate computer is on 1 blinks
12. mer will be responsible for all charges for parts and labor This limited warranty is extended only to the original purchaser It does not cover any equipment connected to the Mpegbox com product or other consumable parts transportation costs or any damage incurred in transit This warranty will become void if the serial number identification has be wholly or partially removed or altered Repair or replacement under the terms and conditions of this warranty does not extent the term of this warranty Any modification of the temperature control system parameters or modifications to the mechanical or electrical structure of this product will void this limited warranty A Return Material Authorization RMA must be obtained prior to returning the product by emailing support mpegbox com Please follow the RMA process on the Support section of the mpegbox com website Please include a brief description of the symptoms your name address email and any other relevant instructions Returns must be shipped prepaid in a static safe with adequate padding before returning to Mpegbox com DSATX Manual Copyright 2006 Mpegbox com Page 13 of 13
13. meters will respond to the Set and Get command Queries will only respond to the Get command actory et By P in Default Extended Parameter Index Value Units Description Basic Mode LOWVOLTS 01 1100 10mV Hard Coded Vin Low Battery Threshold if USEPOTS 20 Y VINHIGHTHRESH 02 1300 10mV Alternator Turn on Voltage Threshold HIGHVOLTS 03 1650 10mV Vin Over Voltage Threshold VOLTSHYST 04 0045 10mV Vin Voltage Hysteresis Engine Cranking VOLTSTHYST 05 1000 10ms Vin Voltage High to Low Time Window Engine Cranking VOLTSTHYST1 06 0100 10ms Vin Voltage Low to High Time Window TURNONDELAY 07 0100 10ms Time To Wait After ACC High before sending turn on pulse PULSEWIDTH 08 0100 10ms Motherboard Power Switch Press Duration MAXTIMER 1 09 1200 1s Maximum CountDown Time set by Potentiometer P1 Y TIMER1EE 10 1200 1s Hard Coded CountDown Time if USEPOTS 20 Y TIMETOKILL 11 0090 1s Time Allowed for Computer to Shut Down USEPOTS 12 1 1 yes O no If set P1 and P2 set CountDown Time and Vin Low Battery Threshold Y ENABLESLEEP i8 1i yes 0 Hset Unit Will go use Sleep Mede ACC High for WakeUp FEEDON 14 1 1 yes O no f set Serial Port Diagnostic Status Feed is Enabled VTURNON 15 0 1 yes O no f set Mb Switch Press occurs after Vin is above VINHIGHTHRESH Y ACCTIMEVAL 16 0050 10ms Settling time for the ACC input Debouncing tim
14. py Connectors DSATX Manual Copyright 2006 Mpegbox com Page 2 of 13 2 Installation Guide 2 1 Recommended Additional Supplies 12 AWG Hookup Wire for Vin and Gnd Inputs Minimum Recommended Gauge 12 24 AWG Hookup Wire for Acc Input Very little current flows through this wire Mounting Screws 4 40 or 6 32 Mounting Standoffs Optional Power Supply Cooling Fan or assure adequate airflow over the DSATX Custom Enclosure 2 2 Recommended Tools e Soldering Iron and or Crimp Tool Secure Input Power Connections e Philips Jewelers Screwdrivers for P1 P2 Adjustment Pots e Philips Head Screwdriver for Mounting Screws and J5 Terminal Screws Hard Drive RO CD ROM etc ATX Computer Motherboard AN m O o 2 3 Connection Overview Diagram DSATX 220W DC DC POWER SUPPLY I 1 1 E lla A BENE Microcontroller d Serial Diagnostics Status EE and Control LED Power Supply ran Ow 2 4 Precautions and Warnings Operating a personal computer in a motor vehicle can be dangerous Improper use or negligence can result in damage and or loss of life to self and others Safety precautions must be considered when operating a personal computer in a motor vehicle Displays must not be distracting to the driver and should not display motion video or otherwise distracting content Check with the local government in your area for laws and guidelines regarding the use of po
15. pyright 2006 Mpegbox com Page 6 of 13 The DSATX is constantly monitoring the input voltage at the VIN terminal to make sure the conditions are right to be operating a computer motherboard in the vehicle The DSATX will not initially turn on unless the voltage is above the value set by the P1 or the serial adapter Once the computer is up and running the DSATX can survive engine cranking for up to 10 seconds If the voltage at VIN is outside the allowable range battery too low the DSATX will wait for sufficient charge before starting the computer and operating normally The DSATX will survive engine cranking under the majority of normal use cranks If the battery is too old or too depleted there will be a point where no solution is capable of surviving engine cranking Following the wire gauge and installation guidelines will provide the best results 3 5 3 Input Transient and Reverse Voltage Protection The DSATX has components that prevent the DSATX from being damaged from the harsh conditions present in a motor vehicle Transients above 24 volts Load Dump are shunted by the protection components Reverse voltage conditions will blow the fuse before damaging components on the DSATX 3 5 4 Thermal Protection Monitoring The DSATX is equipped with a temperature sensor that monitors the ambient temperature around the DSATX The DSATX is programmed to only allow operation while the temperature is inside the window of 10c to 55c If outside this
16. range the LED will flash 4 times and the DSATX will not provide power Once the out of range condition goes away the DSATX will behave like ACC was applied right at that point This protects the DSATX and the computer hardware from temperature extremes and potentially damaging over and under temperature conditions 3 5 5 Output Voltage Protection Monitoring The DSATX is constantly monitoring the Output Rails while operating If the rails are ever overloaded or shorted to ground or each other the DSATX will detect that within 50ms and turn off all outputs and go into the Fault state This will protect the computer hardware in the event that the DSATX is over loaded or if the DSATX should fail for any reason When rails are shorted for example 5 volts to 12 volts other power supplies on the market will not detect an over voltage condition which will damage 5 volt rated computer components 3 5 6 Output Current Limiting The output rails of the DSATX are designed to current limit such that they will begin to sag before the components are overloaded beyond their manufacturer rating in a way that could cause a fire or meltdown The current limiting will be detected by the continuous output voltage monitoring and trigger a fault condition 3 5 7 Sleep Mode Battery Preservation When ACC goes low and stays low for a few seconds the DSATX goes into low power Sleep Mode In this state 5VSB is turned off by default and less than 4 mA is drawn by th
17. results It is OK run a jumper wire from VIN to ACC for bench testing and certain installations To aid in bench testing a Shorting Jumper at location JP1 pins B1 and B2 will enable Dumb Power Supply Mode This will bypass the Startup Shutdown sequencing and battery protection ACC is not required and the LED will indicate that the DSATX is providing power on all the output rails The best way to do successful bench testing is to use an adequately sized 12V battery Bringing in the battery from the car or using an extra one that has at least a 12 AmpHour capacity will be sufficient in most cases Do not connect a Car Battery Charger directly to the DSATX DSATX Manual Copyright 2006 Mpegbox com Page 4 of 13 Using the 12 volt output of an ATX AC DC power supply is also a method for successful bench testing By shorting the Green Wire PS ON of an ATX AC DC power supply can provide the required current for certain bench testing applications Make sure minimum load requirements on the AC DC power supply are met if going this route 2 7 Quick Installation Steps e Connect GND and VIN with heavy gauge wire directly to the automotive batteries and terminals GND may also be connected with heavy gauge wire to the Chassis if desired e Connect the ATX Power Connector J7 J8 to the Motherboard and any peripherals to the Molex Connectors e Connect a case fan with standard 3 pin connector to J1 FAN or assure adequate air flow e Connect the
18. rride P1 and P2 Pots If you set LOWVOLTS to 1050 the unit wouldn t shutdown until it hit 10 50 volts on the VIN input If you set Timer1 to 0600 then after 600 seconds of ACC going away the computer will begin the shutdown sequence We will also enable the VTURNON feature so the computer will turn on only after the engine is running gt E Type the letter E Enable Writing y n gt y Type the letter y gt P Type the letter P PROGRAM MODE Use POTs y n gt n Type the letter n LOWVOLTS gt 1050 Type 1050 must type 4 numbers TIMERI 20600 Type 0600 must type 4 numbers VTURNON y n gt y Type the letter y DONE DSATX Manual Copyright 2006 Mpegbox com Page 9 of 13 4 6 Advanced Features For some users enough is never enough The DSATX has the ability to fine tune many of the parameters that control its behavior By using Set and Get commands S and G it is possible to read and write these parameters to the DSATX To use the Set command type at the prompt an S followed by 2 numbers for the index followed by either 4 numbers or 1 number for the value EX 255011130 Set parameter 1 LOWVOLTS to 11 30V To use the Get command type G at the prompt followed by the 2 number index Ex G90 Get parameter 90 Program Memory Version 0108 Returns this result 1 08 4 7 Advanced Feature Tables The following tables show the available Parameter settings and Queries Para
19. s Its advanced microprocessor control enables features such as Startup Shutdown Sequencing Low Voltage DSATX Manual Copyright 2006 Mpegbox com Page 1 of 13 Battery Protection and Temperature Protection Features also include Serial Port Control Diagnostics and Upgradeability Desktop computer motherboards are typically not designed to work in automotive environments the design and engineering that went into the DSATX makes every attempt to compensate for this Having purchased a DSATX you will rest assured that you ve invested in a flexible product that can grow and expand with your automotive computing system 1 2 Product Photo 1 3 Block Diagram Chassis Ground GND 12 Volts In VIN Supply Protection Temp Sensor Microcontroller MotherBoard Switch Advanced Options Accessory In ACC Control NM Communication Port Requires RS 232 or USB Translator 1 4 Included Contents and Optional Accessories Included 1 DSATX 220 Watt Power Supply 9 20 pin ATX Power Cable with 2 HDD Power Connectors and 1 Floppy Connector 12 4 pin ATX 12V Power Cable CPU Power Cable 0 1 Shunt Jumpers 24 2 pin to 2 pin Mother Board Power Switch Cable Insolated Terminal Ring Crimp Solder Connectors 12 10AWG W ND Optional e Acroname Serial Port Adapter PN S13 SERIAL INT CONN e Acroname USB Serial Adapter PN S19 USB SERIAL INT CONN e 12 20 pin ATX Power Cable with 2 HDD Power Connectors and 3 Flop
20. sions Mounting hole corridnates in Mounting hole size in Board Thickness in Copyright 2006 Mpegbox com 0 20 minutes 10 minutes default 10 12 volts 11 volts default 40 to 90 degrees Celsius 10 to 55 degrees Celsius 1 second 1 second 90 seconds 4 15 L x 3 5 W x 1 0 H 106x99mm 0 2 0 2 0 2 3 3 3 5 3 3 3 5 0 2 0 125 0 062 Page 11 of 13 5 0 Connector Pin Diagrams J7 ATX PWR 12V ERE JS 5VSB J8 INPUT PWR PwR Ok ATX12V MEE GND GND T En ACC Prt 98 5V gt VIN fei 43 3V ND GND 12V G 43 3V JP1 GND a G MB SW GND F AUX SW J2 GND gt E SL SEN GND gt D USER SW SAM GND e 4 C USER1 RX IN eJ GND B USERO 5VD m RESET e A 5VD ON oa TX OUT m 6 GND m i i F1 Fuse EN More Time 20 Amp Mini Auto EN Higher Voltage DSATX Manual Copyright 2006 Mpegbox com Page 12 of 13 6 Troubleshooting Please visit the www mpegbox com support forums for troubleshooting tips 7 Mpegbox com Limited Warranty All Mpegbox com Products carry a Limited Manufacturer Warranty for the Period of 1 year from the date of purchase Mpegbox com warrants its products to be free from defects in workmanship and materials for a period of one 1 year from the date of purchase Mpegbox com will repair or replace the unit at our option without charge for parts or labor After the period of one year the custo
21. tentially distracting electronic devices in motor vehicles Mpegbox com and the people responsible for its content shall not be held responsible for loss or damage as a result of the content procedures or the use of the product s outlined in this manual A personal computer used in a motor vehicle should only be operated as a personal computer when then vehicle is not moving Use this product at your own risk Various safety features are built into this product and any attempt to override them will void any warranties and may cause increased risk of damage to persons or property 5 MB Power Switch DSATX Manual Copyright 2006 Mpegbox com Page 3 of 13 2 5 Detailed Connection Diagram DSATX Vet ae moog DSA r3 R33 3 4c a ag gt O cz amp E ott aa rid 43 a go a D cp EE HPEGBOX COM 2885 Rev 1 6 Power Input J5 Gnd Ground Input connect to the chassis or the battery terminal Vin 12 Volts Input connect directly to the battery terminal ACC Accessory Input Connect to a switched 12 volt supply wire ignition or fuse box F1 Input Fuse 20 Amp mini automotive fuse yellow Power Output J8 ATX12V Connect to the 4 pin processor power connector on the motherboard J7 ATXPWR Connect to the 20 pin motherboard power connector and peripherals J1 FAN Connects to a 12 Volt 3 pin fan to cool the DSATX Control JP1 Pins G2 G1 Connects to Motherboard Power Switch Header G1 Si
22. th the DSATX s Extended Basic and Advanced Modes The USB adapter creates a virtual COMM Port 4 3 Basic Programming Control ane DSATX responds to the following commands over the serial interface Case Sensitive Enable Writing Parameters Allows the below commands to work Enter Program Mode Load Factory Defaults Enable the printing of the serial diagnostic feed Feed On Stop the printing of the serial diagnostic feed Feed Off Set the shutdown counter to 2 seconds causes a quick shutdown in Countdown Mode Force a power button press shutdown or startup for testing JP1 G1 2 polarity Advanced Feature Get Parameter or Query Advanced Feature Set Parameter a Ty Oo eee 4 4 Diagnostic Feed When the Diagnostic Feed is turned On the DSATX has a diagnostic output that comes over the serial port output every 200ms It includes the voltage of the input and outputs the state of the controller as well as some of the control signals This is enabled by first typing E to enable writing and F to enable the Feed It is turned Off by typing O These are case sensitive commands The DSATX will remember the DSATX Manual Copyright 2006 Mpegbox com Page 8 of 13 last setting so if the Feed is turned off and then power is removed from VIN the next time it powers up the Feed will be still be off The Diagnostic Feed takes this format oo Bu B GE G B UU GU BuU A B C D E E G H 3 1 J A Ambient Temperature in Degrees
23. ue of Counter used when Counting Down to Swtich States P_VERSION 90 N A N A Flash Memory Version Number E VERSION 91 N A N A EEPROM Memory Version Number DSATX Manual Copyright 2006 Mpegbox com Page 10 of 13 DSATX Manual 5 Specifications 5 1 Electrical Electrical Specifications Input Voltage Operating Input Voltage Full Load Input Current Output Power No Load Operating Current oleep Current All Rails Off Efficiency Individual Supply Outputs 5 0 Volts 2 3 3 Volts 2 12 0 Volts 2 5 0 Volts Standby 2 12 0 Volts 10 Electraical I O Specifications ACC Input Threshold ACC Input Impedance MB Power Switch Output Drive AUX Output Drive User Switch Pull Up Drive Serial Port Rx Tx 6 24 Volts Non Regulated 8 16 Volts Non Regulated 20A 20A mini blade fuse 220 Watts Max lt 0mA 4mA gt 95 Max Output Current 12 Amps Nominal 13 Amps Peak 10 Amps Nominal 11 Amps Peak 12 Amps Nominal 15 Amps Peak 1 5 Amps 100 mA Low lt 4V High gt 7V 30V Max 100k Ohms Open Collector 50mA Max Open Collector 50mA Max 10k Ohms to 5V Low lt 0 7V High gt 2V 5V Max Supervisor Specifications Basic Mode P1 Countdown Timer Range P2 Low Voltage Cutout Range Operating Temperature Range Controlled Temperature Range MB Turn On Delay MB Power Switch Duration Max Shutdown Timer Range 9 2 Mechanical Mechanical Specification Board Dimmen
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