Table of Contents
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220-Watt DC-DC ATX Power Supply
1.
Getting Started ...............................................................................................................................1
1.1. Introduction ....................................................................................................................................1
1.2.
Product Photo .........................................................................................................................2
1.3.
Block Diagram.........................................................................................................................2
1.4.
Included Contents and Optional Accessories............................................................................2
2.1.
Recommended Additional Supplies..........................................................................................3
2.2.
Recommended Tools...............................................................................................................3
2.3.
Connection Overview Diagram.................................................................................................3
2.4.
Precautions and Warnings.......................................................................................................3
2.5.
Detailed Connection Diagram ..................................................................................................4
2.6.
Bench Testing .........................................................................................................................4
2.7.
Quick Installation Steps ...........................................................................................................5
3.
User Guide......................................................................................................................................5
3.1.
Theory of Operation.................................................................................................................5
3.2.
Modes of Operation.................................................................................................................5
3.3.
LED Codes .............................................................................................................................6
3.4.
Basic Mode Timing Diagram ....................................................................................................6
3.5.
Features Explained..................................................................................................................6
4.
Serial Port Connectivity..................................................................................................................8
4.1.
Serial Port Adapters ................................................................................................................8
4.2.
Serial Port Overview................................................................................................................8
4.3.
Basic Programming Control .....................................................................................................8
4.4.
Diagnostic Feed ......................................................................................................................8
4.5.
Extended Basic Programming Examples ..................................................................................9
4.6.
Advanced Features ...............................................................................................................10
4.7.
Advanced Feature Tables......................................................................................................10
5.
Specifications...............................................................................................................................11
5.1.
Electrical ...............................................................................................................................11
5.2.
Mechanical............................................................................................................................11
5.3.
Connector Pin Locations........................................................................................................12
7.
Mpegbox.com Limited Warranty ..................................................................................................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 accessories.
Its advanced microprocessor control enables features such as Startup/Shutdown Sequencing, Low Voltage
DSATX Manual
DuraWatt DSATX
User Manual
Version 1.0
Table of Contents
Copyright 2006 Mpegbox.com
Page 1 of 13
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Summary of Contents for DuraWatt DSATX 220
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Page 1: Table Of Contents
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 accessories. -
Page 2: Product Photo
Included Contents and Optional Accessories Included: 1 : DSATX 220 Watt Power Supply 1 : 9" 20-pin ATX Power Cable with 2 HDD Power Connectors and 1 Floppy Connector 1 : 12" 4-pin ATX 12V Power Cable (CPU Power Cable) 2 : 0.1"... -
Page 3: Recommended Additional Supplies
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) •... -
Page 4: Detailed Connection Diagram
2.5. Detailed Connection Diagram Power Input 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) Input Fuse: 20-Amp mini-automotive fuse (yellow) Power Output... -
Page 5: Quick Installation Steps
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. -
Page 6: Led Codes
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: •... - Page 7 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.
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Page 8: Serial Port Connectivity
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. -
Page 9: Extended Basic Programming Examples
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: +030.3:12.56:12.00:05.19:03.34:10.49:0560:YNYY:3:0558 :I: J A: Ambient Temperature in Degrees C B: Input Voltage at VIN C: 12-Volt Rail Output D: 5-Volt Rail Output... -
Page 10: Advanced Features
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. -
Page 11: Specifications
5. Specifications 5.1. Electrical Electrical Specifications: Input Voltage (Operating) 6-24 Volts Non-Regulated Input Voltage (Full Load) 8-16 Volts Non-Regulated Input Current 20A (20A mini-blade fuse) Output Power 220 Watts Max No Load Operating Current < 70mA Sleep Current (All Rails Off) <... -
Page 12: Connector Pin Locations
5.3. Connector Pin Diagrams ATX PWR +12V +5VSB INPUT PWR PWR_OK ATX12V +12V PSON# +VIN +3.3V -12V +3.3V +3.3V +12V (G) MB_SW (F) AUX_SW (E) SL_SEN COMM (D) USER_SW (C) USER1 RX(IN) (B) USER0 +5VD TX(OUT) RESET# (A) +5VD P1 & P2 POTS Fuse = More Time... -
Page 13: Mpegbox.com Limited Warranty
6. Troubleshooting Please visit the www.mpegbox.com support forums for troubleshooting tips. 7. Mpegbox.com Limited Warranty The DSATX Power Supply carries a Limited 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.
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