TDAS PLUS Distributor User`s Manual
Contents
1. Suggested Connector Sources DTS uses LEMO connectors on the TDAS PLUS Distributor If you need to purchase connectors we suggest first going to LEMO directly http www lemo com index html Their web site and worldwide sales team are very helpful Should you have difficulty obtaining a specific part number they can suggest connector variations or alternates and explain options that may be useful for your particular application Another U S source is Alpine Electronics www alpine electronics com in San Jose California They are a stocking distributor for LEMO and LEMO compatible connectors support dtsweb com 8 Rev 2 TDAS PLUS Distributor power only 48 VDC User s Manual October 2004 Appendix B Mechanical Specifications 5 8 inches 147 3 mm TDAS PLUS DISTRIBUTOR DDT weno svi b corr E uu zz1z sewul ss g 7 78 inches 197 61 mm 0 375 inches diam 7 04 inches 178 82 mm 3 mm diam 0 45 inches 11 43 mm ww T9 T8T Seupul GTZ ww O 6T seupui 9 4 0 24 inches thick 6 1 mm thick support dtsweb com 9 Rev 2 TDAS PLUS Distributor power only 48 VDC User s Manual October 2004 Base Plate B Mounting Hole Locations 7 78 inches 197 61 mm 6 693 inches 170 mm 0 375 inches diam 9 5 mm diam ww QZT Seydul 69 9 9 WW T9 76T Seuput 8Z Z 0 24 inches thick 6 1 mm thick support dtsweb com 10 Rev 22. 2 Connect a power cable RPP xx xxxx from POWER OUT port 1 1 to the TDAS equipment of choice support dtsweb com 6 Rev 2 TDAS PLUS Distributor power only 48 VDC User s Manual October 2004 3 Continue in this manner from left to right then top to bottom until all equipment has been connected Grounding In addition to providing reliable power conversion for TDAS systems the TDAS PLUS Distributor also provides a means for grounding the entire data acquisition system and the test vehicle The enclosure of the TDAS PLUS Distributor is connected to pin D of the power input connector Amphenol MS3474L14 4P and to pins 3 and 4 of each power output connector LEMO ECG 2B 304 CLL Please see Appendix A for connector information and pin outs Special steel washers are bonded to the mount ing flanges of the TDAS PLUS Distributor with conductive epoxy to help facilitate proper grounding DTS strongly recommends that the test vehicle or sled be connected to earth ground One easy way to do this is to attach a trailing ground cable to the TDAS PLUS Distributor s power input connector or one of the mounting bolts Additionally it is very important that the enclosures of all TDAS equipment be grounded to each other and the test vehicle or sled structure This will minimize any risk of data noise due to high current transients from sources such as vehicle battery shorts or air bag squib shorts Bolting the units to the vehicle or mounti
3. current 13 8 Vin 1 25 where 1 25 is the compensation for conversion loss and Vin voltage at the input connector of the TDAS PLUS Distributor after cable loss 3 Calculate the required power supply and wiring to maintain at least 36 volts at the unit s POWER IN connector Assume 40 volts at the input connector Example Three eight slot TDAS PRO racks and 24 SIMs 192 channels e Worst case DAS current 27 amps e Input current at 40 volts 27 13 8 40 1 25 11 64 amps e Assume that a 100 m umbilical is required Fourteen gage wire has a nominal resistance of 0 85 ohm per 100 m Since current flows through two wires and the total resistance will be 1 7 ohms The worst case voltage drop will be 11 64 amps 1 7 ohms 19 79 volts In this example a reasonable solution would be to use a 60 volt power supply rated for at least 12 amps with a 100 m 14 gage umbilical 4 Please contact DTS if you require assistance Power Connections Depending on the customer s specifications for the unit it may be provided with a power in cable or the cable connector only Please see Appendix A for connector information and pin outs Cables RPP xx xxxx from the POWER OUT connectors to other TDAS equipment can be supplied by DTS or the customer may choose to assemble these on site Power connections should be made as follows 1 Connect the TDAS PLUS Distributor s power supply to the POWER IN connector on the unit
4. DDTS 909 Electric Ave Suite 206 Seal Beach CA 90740 USA Phone 1 562 493 0158 Fax 1 562 493 3158 www dtsweb com TDAS PLUS Distributor power only 48 VDC User s Manual October 2004 Rev 2 TDAS PLUS Distributor power only 48 VDC User s Manual October 2004 Table of Contents DTS SuppDOTt iiooriiesseu xe aa RU er daaies A 3 Introducing the TDAS PLUS Distributor ueseeesees eese enne nnn ann n anna 4 Overview of power only TDAS PLUS Distributor Features 4 Basic Care and Handling ee eue noce ona oua un ania n E RRRERERRERREREEREEREERMRRREN EE OR ENMEA ER 4 SHOCK RUIN pc cH 4 Temperature Rallrig secte aris dix eE tcn rode oS E CRANE CHRERANRSEERENAR ERR RCR RE DL E RU ERE 5 Power Considerations sic sienideceessieaewae cs ninaa aaa aaa aa iaaa aaa UNE 5 Input Power and Umbilical Calculations c ccccccceceseeesseesseeesseeeessessesesseneeaeees 5 Power Connectors wives ceci since cee aae E A AAGE Aa S EEE ES INDE 6 GroundiNg smse ni E E AI N A ERD 7 LED IndicatorS MOERS 7 Appendix A Connector Information sssssssssssuuuuuuuuuuunnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 8 Suggested Connector SOUFCES s ssssssssssssssrrrnnnnrnn RREENDU eeensamatbadetns RE RENI E Md RR RE 8 Appendix B Mechanical Specifications Lee esee sees nnne nnnm nnn 9 Base Plate A Mounting Hole LGeations eoi ex ipee eene eh tron ex eee cux Dena rcx gir are
5. ical specifications Temperature Rating Your system has been tested for full functionality with a case temperature of 70 C The actual case temperature will be affected by three primary factors 1 Output power 2 Ambient temperature and airflow and 3 Sunlight exposure Always shield the units from exposure to direct sunlight and avoid situations where airflow is significantly restricted If two or more of the primary factors will cause high case temperatures additional airflow across the units will significantly reduce case temperature The main power converters are mounted to the base plate of the unit Bolting the unit to a structure with significant thermal mass will reduce the operating temperature through the heat sinking effect When in doubt measure the case temperature and take whatever steps are necessary to reduce the case temperature to less than 60 C for safe operation Power Considerations A good power source is of paramount importance The TDAS PLUS Distributor should be powered from a high quality power source with output voltage and current ratings appropriate for the installation Each vertical column of three connectors is driven by a separate power converter that can provide 400 W at 13 8 volts Connecters 1 1 1 2 and 1 3 share the same converter connectors 2 1 2 2 and 2 3 share another converter etc For maximum reliability TDAS systems should be connected from left to right and then top to bottom F
6. n 9 Base Plate B Mounting Hole LOCATIONS ose oases ren terrena entren rn n nene ld te 10 support dtsweb com ii Rev 2 TDAS PLUS Distributor power only 48 VDC User s Manual October 2004 DTS Support DTS systems are designed to be simple to operate and reliable but there may be times when you have questions or you believe the system may not be working properly DTS has worldwide support for its products As part of its support team DTS has engineers with extensive product knowledge and crash test experience to help via telephone e mail or on site visits The best way to contact a DTS support engineer is to e mail support dtsweb com This e mail is immediately sent to all DTS support engineers and is the fastest way to get a reply to your request support dtsweb com 3 Rev 2 TDAS PLUS Distributor power only 48 VDC User s Manual October 2004 Introducing the TDAS PLUS Distributor TDAS PLUS Distributors function as interface units for all DTS data acquisition products and serve to simplify hardware integration They are available in several versions to meet varying customer requirements around the world The power only TDAS PLUS Distributor provides on board power for multiple TDAS products in one rugged unit by eliminating the need for multiple power supplies or batteries Overview of power only TDAS PLUS Distributor Features e Built and tested for 100 G dynamic testing environments e Provides power for up
7. ng structure will ordinarily provide proper grounding DTS recommends checking continuity between the enclosures of each unit to confirm resistance readings of 1 ohm If the installation does not permit bolting the TDAS PLUS Distributor and connected TDAS systems to a common ground either connect ground wires between the various enclosures or use grounding power cables available from DTS Please contact DTS if you have any questions regarding proper methods to ground the system LED Indicators The power only TDAS PLUS Distributor has four LEDs that provide ongoing power status information There is one LED for POWER IN and three LEDs for POWER OUT one per vertical power bank These LEDs will either be on green or off A green POWER IN LED indicates only that there is power to the unit but not that it is sufficient or within acceptable levels Green POWER OUT LEDs indicate that there is both sufficient input and output power levels support dtsweb com 7 Rev 2 TDAS PLUS Distributor power only 48 VDC User s Manual October 2004 Appendix A Connector Information 4 pin POWER IN connector 4 pin POWER OUT connectors Amphenol MS3474L14 4P ECG 2B 304 CLL panel view panel view Suggested cable connector P N Suggested cable connector P N MS3476L14 4S 97 3057 1008 1 621 FGG 2B 304 CLADxx Pin Function Power Power 5 No connection 5 enclosure Enclosure Enclosure
8. or example when connecting four systems use ports 1 1 2 1 3 1 and 1 2 The power only TDAS PLUS Distributor does not contain an internal back up battery Input Power and Umbilical Calculations The TDAS PLUS Distributor contains high efficiency power conversion circuitry with a wide input range and a well regulated 13 8 volt output With an appropriate umbilical and off board power supply the system supplies optimal power for TDAS systems without having to worry about variable voltage drop through the umbilical It is very important that you choose a power supply and umbilical wiring carefully to ensure there is at least 36 volts at the input connector of the TDAS PLUS Distributor under all circumstances Umbilical cables have resistance that depends upon the con support dtsweb com 5 Rev 2 TDAS PLUS Distributor power only 48 VDC User s Manual October 2004 ductor diameter and increases with length Longer umbilical cables typically require the use of larger conductors The input power required is directly related to the load placed on the outputs and the applied input voltage DTS recommends the following strategy to ensure success 1 Determine the worst case DAS load For TDAS PRO equipment assume 1 amp per module or rack For each TDAS G5 DAS Docking Station system assume 2 amps per system 2 Calculate the TDAS PLUS Distributor input current The input current require ment is as follows Input current total DAS
9. to nine TDAS PRO racks TDAS G5 Docking Stations or other TDAS equipment in any combination e Power input is protected against reverse current over current and transient over voltage conditions e LED indicators for power input and output e Integral mounting flanges for ease of use Basic Care and Handling The TDAS PLUS Distributor is designed to operate reliably in 100 G dynamic testing environments Though resistant to most environmental conditions care should be taken not to subject the unit to harsh chemicals submerge it in water or drop it onto any hard surface When transporting the unit treat it as you might a laptop computer and you should have no problems We suggest that you always place the unit in the padded carrying case originally provided with your unit when it is not in use WARNING Electronic equipment dropped from desk height onto a solid floor may experience as much as 10 000 Gs Under these conditions damage to the exterior and or interior of the unit is likely Shock Rating All TDAS systems are rated for and fully tested to 100 Gs 12 mS duration in all axes TDAS equipment can be mounted directly on a vehicle sled or other dynamic support dtsweb com 4 Rev 2 TDAS PLUS Distributor power only 48 VDC User s Manual October 2004 testing device Mounting methods and mounting bolt selection should be carefully calculated so as to withstand expected shock loading See Appendix B for the mechan
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