Mini Distributor User`s Manual (Rev 2).
Contents
1. 24 VDC nominal 36 60 VDC range 48 VDC nominal The LEMO input version of this model is not rated for input voltages below 15 VDC This model does not contain a power converter i e VDC input VDC output CONTROL Connector The CONTROL connector contains start record input status output and event input signals An external start record signal received by this connector will be transmitted to the UMBILICAL and all TDAS System connectors An internal status signal transmitted to this connector will be forwarded externally All external contact closure and or logic compatible event signals received by this connector will be transmitted to the UMBILICAL connector all TDAS System connectors and the Crashlink compatible interface if so equipped CONTROL support dtsweb com 7 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 UMBILICAL Connector The UMBILICAL connector contains Ethernet for transmit and receive start record status and event signals Internal and external communications are Supported using the industry standard Ethernet 10 100BaseT Tx communication protocol An external start record signal received by this connector will be transmitted to all TDAS System connectors and the Crashlink compatible interface if so equipped An external status signal received by this connector will be forwarded to all TDAS System connectors and the Crashlink compatible interface if so equipp2. CL termination 4 pin power input connector ECG 2B 304 CLL 8 VDC input 18 36 VDC 9 Noconnection p12 ik 12 1 Event bidirectional isolated TRO 14 Event bidirectional isolated TRO 15 Start record bidirectional isolated TR1 panel view 6 Start record bidirectional Suggested cable connector P N isolated TR1 FGG 2B 304 CLADxx VDC input Ethernet 10Base2 Ethernet 10Base2 4 5 3 2 P No connection VDC input power return 3 4 Enclosure case ground support dtsweb com 14 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 7 pin CONTROL connector 19 pin UMBILICAL connector ECG 2B 307 CLV ECB 2B 319 CLV panel view panel view Suggested cable connector P N Suggested cable connector P N FGG 2B 307 CLADxx FGB 2B 319 CLADxx Start record bidirectional isolated 0 5 V signal to pin 2 Power present signal Start record bidirectional 2 issn neon Event isolated input 5 12 V laem enean 6 _ Status output 6V OK 4 Ground tor status output 5 Status output 0 V 5 V with g ___ Ethernet Rx 10 100BaseT Tx _ ee fS Eneee aooo a Event bidirectional isolated contact closure to pin 7 contact closure to pin 6 15 Event bidirectional isolated contact closure to pin 19 Common for start record Ethernet Tx 10 100BaseT Tx Ethernet Tx 10 100BaseT Tx 19 Event bidirectional isolated contact c
3. Center web portal support dtsweb com You must be registered Support dtsweb com registration to submit a request https support dtsweb com hc en us requests new Registration also enables access to additional self help resources and non public support information This manual supports the following products 10500 00050 TDAS PLUS Mini Distributor Crashlink compatible input 10500 00060 TDAS PLUS Mini Distributor 15 V input retired 10500 00061 TDAS PLUS Mini Distributor 15 V LEMO input retired 10500 00070 TDAS PLUS Mini Distributor 24 V input 10500 00080 TDAS PLUS Mini Distributor 48 V input 10500 00130 TDAS PLUS Mini Distributor 10 36 V input 10500 00131 TDAS PLUS Mini Distributor 10 36 V LEMO input support ditsweb com 3 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 Introducing the TDAS PLUS Mini Distributor TDAS PLUS Mini Distributors function as interface units for TDAS PRO TDAS G5 and iCrash data acquisition products and serve to simplify hardware integration Supplying power and integrating communication control event and status signals they are available in several configurations to meet a variety of user requirements around the world This manual discusses the features available with the TDAS PLUS Mini Distributor To identify the specific hardware included with your system please see your packing list e Built and tested for 100 g dynamic testing environm
4. Docking Station system assume 2 A per system 2 Calculate the TDAS PLUS Mini Distributor input current The input current requirement is as follows Input current total DAS current 15 Vin 1 25 where 1 25 is the compensation for conversion loss and Vin voltage at the input connector of the TDAS PLUS Mini Distributor after cable loss 3 Calculate the required power supply and wiring to maintain sufficient input voltage at the unit s power input connector For this example assume 48 V at the input connector Example Four TDAS G5 DAS TDAS G5 Docking Station systems 128 channels e Worst case DAS current 8 A e Input current at 48 V 8 15 48 1 25 3 125 A support dtsweb com 19 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 e Assume that a 100m power cable is required Sixteen gage wire has a nominal resistance of 1 84 ohm per 100 m Since current flows through two wires and the total resistance will be 2 68 ohms The worst case voltage drop will be 3 125 A 2 68 ohms 8 375 V In this example a reasonable solution would be to use a 56 V power supply rated for at least 5 A with a 100 m 16 gage power cable Please contact DTS if you require assistance support dtsweb com 20 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 Revision History pate By SSCS CScription SSSSSSSSSSSSSSS O O 6 Jan 2015 Added
5. Under normal conditions the unit will get warm to the touch when a full load is applied continuously The units internal fan and the application of a heat sink provided by bolting the unit to a structure of significant thermal mass will keep the temperature well within acceptable limits for any extended period in use at the maximum power output level If high ambient temperatures exposure to other heat sources or severely restricted airflow will cause case temperatures in excess of 70 C the airflow created by a small fan will increase heat transfer by a factor of 3 to 5 Additionally do not block or restrict air intake or exhaust fan to or from the unit and always shield the unit from exposure to direct sunlight When in doubt measure the case temperature of the unit and take whatever steps are necessary to improve heat transfer Power Management A good power source is of paramount importance The TDAS PLUS Mini Distributor should be powered from a high quality power source with output voltage and current ratings appropriate for the installation A green power status LED means voltage and current input levels are within specifications and polarity is correct A discussion of the power status LED begins on page 6 All TDAS Systems connectors are driven by one power converter that provides nominal 15 V 4 5 A output power per connector Each connector has a maximum output current protection threshold of 5 A using self resetting fuses If one
6. harsh chemicals submerge it in water or drop it onto any hard surface WARNING Electronic equipment dropped from desk height onto a solid floor may experience as much as 10 000g Under these conditions damage to the exterior and or interior of the unit is likely TDAS PLUS equipment is not user serviceable and should be returned to the factory for service or repair 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 or if shipping is required Shock Rating The TDAS PLUS Mini Distributor is rated for and fully tested to 100 g 12 ms duration in all axes Mounting Considerations The unit should be securely bolted to the test article or dynamic testing device to provide the best shock protection Mounting methods and hardware selection should be carefully calculated to withstand expected shock loading and facilitate proper grounding Check bolt tightness periodically to ensure that 1 the unit is securely fastened to the baseplate and 2 support dtsweb com 9 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 the baseplate is securely fastened to the testing platform See Appendix B for the unit s mechanical specifications Thermal Considerations It is unlikely that the unit will overheat if common sense measures are taken
7. 4 pin LEMO connector specs to Appendix A Updated DTS Support boilerplate and footer Rev 2 20 May 2014 EK Added 10 36 VDC variant information Revised Power Input Connector section Revised and moved LED section Revised and moved Power Requirements of other TDAS and SLICE Equipment Moved Input Power Calculations to Appendix C Removed External Power Provisions and Power up and Power down Procedures sections Updated document format and DTS Support and Shock Rating boilerplates Added accessory cables Added Revision History and document number Changed cover photo Rev 1 2 Feb 2006 Initial release Rev 0 support dtsweb com 21 10500 00050 MAN Rev 2
8. DDTS TDAS PLUS Mini Distributor User s Manual January 2015 10500 00050 MAN Rev 2 Diversified Technical Systems Inc All Rights Reserved TDAS PLUS Mini Distributor User s Manual January 2015 Table of Contents DES SUID ON ooreen a E e AaS 3 Introducing the TDAS PLUS Mini Distributor 0 ee eeceeeeeeeseeeeeeeeeeeneeseeneesenseeseaes 4 TDAS PLUS Mini Distributor Control Panel cccsceeeseseeeeeseeseeseeeeeseesenseesenseeseneees 4 RET MICH ALONG nec rh cence tern ta ceuchote trues Resear sian Gua Guay tera een ueusapan arms argue Ey 6 FOWE AUU eee ane RRR te Rene te Bs Ra ee or E RT te any et RnR er Oe Re oem ee Rr he en ne 6 TIDAS OVS OMS geen eee eee nn a 6 o 2 U Ko ee nee Oe ORC Pe Omer PRE E PERC eee Een een een ence ence 7 POWSTINPUFCGONNGC IO eaa A 7 CONTROLE CONNCCIO eae assesses E TA ee 7 UMBILICAL CONNECCION oieri tAE EnEn EEE ERN ENEA ENEA EEN EEA EOE LAENU ENDA EENEN DA EN ERENTO ENEA ENEN OAREN ENINA 8 HOCKING T09 SWIC M encoi E 8 TDAS Systems GOMMCCIONS esinrensicrer pirne pirrar iS aai ai aN EEE TOE 8 Crashlink compatible Intera E 2 riccecuarentetntdactetattintedwadintyinndaeteiailinvedenieteiandicteledsiatelaedl 9 B i Cale and Fl Alin s rino neoaea uaaa a a EE EEEE 9 SNOCK Raiss E 9 MIOURTING GONMSIOCI AN OAS assis anA AAA AA AAE A AAE NE 9 Thermal Consid ralioNS ennea suitaiagita a a henattnvnthanarlansaniitine tanitanatenpendetanaindn 10 POWER Managements eo
9. EEEa 10 MPUVOUWHUPOWEr LIMI S essccesaesosesicwenaesionwsiouseneveitoadetenstoedsonsvoudeueeiwedeeanssadetoowestbevenesseest 10 Cntcalsignal BACK UDe S 11 Charging Powering other TDAS Equipment via the TDAS PLUS Mini Distributor 11 Power Requirements of TDAS and SLICE Equipment ccccccccccseeeceeecseeecsnseeanees 11 Equipment Interconnections cccccessceeseeesseenseeeseeeaseonseoeaeeeaseonseoeaeeoaseoessoeasenseneeesnasens 12 COMMUNICAUON Feature Sssacana a saceescauecatecesaccnan 12 GCO UNGI Oan rrr eT rrr rer stro rrr eh er errr er rrr ire errr rr rr rr errr oe rrr ere Serre re oe rr errr er errr 13 Appendix A Connector Information ccccsssecsesseccenseecenseecenseecesseeennsesenssesenseesoass 14 SUGGESTEd GOMMECIOF SO UNC OS an AE T RE 17 Appendix B Mechanical Specifications cccsssccsesseecesseccenseeceneeeeeseesenneeseaseesoaes 18 Appendix C Input Power Calculations ccccsssseeceeseeceeseecensesenseeeeeseesenseesenseesones 19 support dtsweb com ii 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 DTS Support TDAS systems are designed to be reliable and simple to operate Should you need assistance DIS has support engineers worldwide 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 submit a request through the DTS Helo
10. One easy way to do this is to attach a trailing ground cable to the TDAS PLUS Mini Distributor s power input connector or to the enclosure of the unit 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 mounting structure will ordinarily provide proper grounding DTS recommends checking continuity between the enclosures of each unit and the test vehicle or sled to confirm resistance readings of lt 1 ohm lf the installation does not permit bolting the TDAS PLUS Mini Distributor and connected TDAS systems to a common ground DIS recommends connecting ground wires between the various enclosures Please contact DIS if you have any questions regarding proper methods to ground the system support dtsweb com 13 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 Appendix A Connector Information INTERFACE connector 4 pin power input connector ECG 4B 856 CLL1 Amphenol MS3474L14 4P panel view panel view Suggested cable connector P N Suggested cable connector P N FGG 4B 856 CLAM722 MS3476L14 4S 97 3057 1008 1 621 Pin Function B Noconnection D_ Enclosure case ground CH termination CL termi Oo 4 6 amp 6
11. S CONTROL UMBILICAL 15 VDC Input P N 10500 00060 P N 10500 00061 with LEMO input not shown SYSTEM t STATUS Teeme d CONTROL UMBILICAL iCrash A 36 60 VDC 10 36 VDC SYSTEM STATUS 15 VDC input P N 10500 00130 P N 10500 00131 with LEMO input not shown support dtsweb com 5 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 LED Indicators The TDAS PLUS Mini Distributor has a variety of LEDs to provide power and system information LED behavior is summarized in the tables below A thorough understanding of the LED states will facilitate an efficient approach to troubleshooting and a quick resolution to any problems Power Status lf this LED is off and you have power going to the unit but no output voltage this can mean several things 1 Input voltage not within specifications 2 Input current is not within specifications 3 Input polarity is not correct Disconnecting any attached equipment from the TDAS Systems connectors can help identify whether input or output power is involved Additional troubleshooting can further isolate the problem VDC Power Status INTERFACE DC INPUT Input power OK voltage current and polarity OK o O Input voltage too high n TDAS Systems These LEDs function independently of each other If the LED remains red an Ethernet link has not been established and the problem will need to be resolved before conti
12. ed An internal status signal transmitted to this connector will be forwarded externally A contact closure event signal received by this connector will be transmitted to the CONTROL connector all TDAS System connectors and the Crashlink compatible interface if so equipped This event T 0 signal path should be used when the event signal is generated off board or must be transmitted to other systems This connector does not support logic compatible event signals Use the CONTROL connector if you require support for logic compatible event signals UMBILICAL Note that all start record input and output signals are logic compatible Locking Toggle Switch When the toggle switch is in the ON position all internal control system electronics including output power are energized and the unit is fully functional This is the normal operating mode When the switch is in the iCrash or OFF position only output power is active The toggle switch can be in either position to charge attached equipment Note You must pull out on the switch before moving do not force TDAS Systems Connectors These connectors are identical and contain power Ethernet start record output status input status Output and event signals Each connector provides conditioned nominal 15 VDC 4 5A output power for use with TDAS equipment Note The 15 VDC power pass through model does not provide regulated power Internal and external communications are sup
13. ents e DTS standard DC power input connector or Crashlink compatible interface options available e Provides 15 V output power for up to four TDAS and iCrash devices including iDummy systems e Integrates power communication event and status signals e Over and undervoltage protection overcurrent protection and power input polarity protection e Individual system status all system status and power status LED indicators e Integral threaded mounting holes TDAS PLUS Mini Distributor Control Panel All connectors and LED indicators are accessible from the front panel Power input connector dedicated or via Crashlink compatible interface Communication and control signals Event input and output signals System status and start record signals Locking toggle switch for power control Power status individual and all system status LED indicators Appendix A contains connector information and pin assignments Appendix B details the unit s mechanical specifications A discussion of the LEDs begins on page 6 Pictures of the different front panels are shown below Newer front panels have slightly different markings This does not affect function support ditsweb com 4 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 x me ON EXZORO Ex d J CONTROL UMBILICAL iCrash X x SYSTEM INTERFACE Crashlink compatible P N 10500 00050 a o DC INPUT SYSTEM STATU
14. losure to pin 15 support ditsweb com 15 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 19 pin TDAS Systems connectors ECA 2B 319 CLV ECG 2B 319 CLV panel view panel view Suggested cable connector P N Suggested cable connector P N FGA 2B 319 CLADxx FGG 2B 319 CLADxx Early units have single G keyed Power control output iDummy connectors Later units have dual A short to ground on keyed connectors Pin assignments are the same for both connectors 5 V start e Status toDAS GV OK e Main power output 75 VDC o Main power output 75 VDC Event bidirectional isolated contact closure to pin 19 Common for start record and status input ground Main power return Main power return Event bidirectional isolated contact closure to pin 15 support dtsweb com 16 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 Suggested Connector Sources DTS uses LEMO connectors on the TDAS PLUS Mini Distributor If you need to purchase connectors we suggest first going to LEMO directly http Awww lemo com 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 c
15. means voltage and current input levels are within specifications and polarity is correct The unit will be immediately ready for use 2 Connect the TDAS equipment of choice to any TDAS Systems connector using the appropriate cable typically a DDX or CPY cable WARNING RDC cables should not be attached to TDAS Systems connectors To do so will likely result in damage to your equipment 3 Continue in this manner until all equipment has been connected Communication Features The TDAS PLUS Mini Distributor supports the industry standard Ethernet 10 100BaseT Tx communication method The unit itself does not contain an IP addressable controller but includes an Ethernet switch to support communications Note The Crashlink compatible interface supports external communications via 10Base2 Ethernet support dtsweb com 12 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 Grounding In addition to providing reliable power conversion for TDAS systems the TDAS PLUS Mini Distributor also provides a means for grounding the entire data acquisition system and the test vehicle The enclosure of the TDAS PLUS Mini Distributor is connected to pin D of the power input connector Amphenol MS3474L14 4P and to the power output pins on the TDAS Systems connectors Please see Appendix A for connector information and pin assignments DTS strongly recommends that the test vehicle or sled be connected to earth ground
16. nuing If the LED remains off when the DAS is connected and the toggle switch is in the ON position check that the attached equipment is powered up and working properly TDAS Systems x4 Ethernet link established OO O Ememetinkrotesabishd OSS o ireular Buffer Mode Recorder Mode DaS armed ard reay 0 T DAS colectngdata S a O support dtsweb com 6 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 System Status This LED indicates the health of the entire system All attached DAS are functioning properly if this LED is green or red If any system is not functioning properly the LED will remain off Note An off LED can also indicate the DAS is armed in recorder mode SYSTEM STATUS PAS Status Circular Buffer Mode Recorder Mode ce Start record signal received ms f _ Power Input Connector There are 3 power input connector options available The TDAS PLUS Mini Distributor can be used to charge all connected DAS equipment simultaneously if input power is sufficient and the power status LED is green The switch may be in either position It should not be used to charge any dedicated external battery e g TDAS PLUS Crashworthy Battery Power Input 15 36 VDC range 10 36 VDC range 15 VDC nominal 15 VDC nominal 15 VDC pass through 15 A max 15 VDC pass through 15 A max DC INPUT DC INPUT 18 36 VDC range 18 36 VDC range 24 VDC nominal
17. om in San Jose California They are a stocking distributor for LEMO and LEMO compatible connectors Amphenol connectors are also used on the 10 36 15 18 36 and 36 60 VDC TDAS PLUS Mini Distributors There are many distributors for Amphenol and Amphenol compatible connectors Cannon Array etc including Allied Arrow Newark and TTI Contact information for these distributors can be found at http Awww amphenol indusitrial com support ditsweb com 17 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 Appendix B Mechanical Specifications Weight 1 82 kilograms 9 252 inches 235 mm 2 008 inches 51mm TDAS PLUS DTS wW 87 L L S yYU G9 Y should penetrate unit 8 mm _ 0 4 inches 10 16 mm dh r x 1 608 inches M8 x 1 25 pitch screws 40 84 mm 5 8 76 inches 222 5 mm 0 492 inches 12 5 mm Accessories support equipment 10600 0003x Cable SYSTEM port to COM port POWER port CPY 10600 0006x Cable power DC input to pigtails DPX 10600 0017x Cable power SYSTEM port to POWER port SPO 10700 0005x Cable DBX cable to SYSTEM port DDX 10700 0006x Cable PC comm Ethernet via UMBILICAL port DEC 10700 0008x Cable SYSTEM port to COM port DRC 10700 0021x Cable PC comm Ethernet via SYSTEM port SPE 10700 0022x Cable SYSTEM port to UMBILICAL port SPU 10700 0053x Cable TDAS PLUS Mini Distributor SYSTEM port event x multiple length
18. output should shutdown the other three will not be affected assuming power and current thresholds are not exceeded Important note The 15 VDC power pass through unit does not contain a power converter Please pay close attention to the input voltage at the power input connector as this is the voltage that is supplied or passed through to the attached equipment i e VDC input VDC output Input Output Power Limits The maximum input and output power limits are dependent on the model Maximum Input Maximum Output Power Power total 10 36 VDC range 225 W 200 W 15 VDC pass through 225 W 15 V at 15 A 225 W 18 36 VDC range 360 W 270 W 36 60 VDC range 360 W 270 W This model does not contain a power converter i e VDC input VDC output There may be additional restrictions based on the input connector See page 7 for details support ditsweb com 10 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 Critical Signal Back up The TDAS PLUS Mini Distributor contains a capacitive device to support critical test signals should external power be disconnected during data collection Status start record and event signals are enabled for 1 minute in the event of power loss Note Main output power and Ethernet communications are not supported When connected to sufficient external power the unit will be ready to support these critical signals after a few minutes Charging Powering other TDAS E
19. ported using the industry standard Ethernet 10 100BaseT Tx communication protocol A start record signal received by the CONTROL connector UMBILICAL connector or Crashlink compatible interface will be transmitted to each TDAS System connector and forwarded externally A status signal received by any one connector will be transmitted to the other three and forwarded to the CONTROL connector UMBILICAL connector and Crashlink compatible interface if so equipped A contact closure event signal received by one connector will be transmitted to the CONTROL UMBILICAL other TDAS System connectors and Crashlink compatible interface if so equipped support dtsweb com 8 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 WARNING RDC cables should not be attached to TDAS Systems connectors To do so will likely result in damage to your equipment droid acy ca Interface In addition to input power the Crashlink compatible interface also supports opto isolated bidirectional start record and event T 0 signals and external Ethernet 10Base2 communications Pins 5 and 6 support CAN status loop termination with O ohm This connector does not support logic compatible event signals Basic Care and Handling The TDAS PLUS Mini Distributor is designed to operate reliably in 100 g dynamic testing environments Though resistant to many environmental conditions care should be taken not to subject the unit to
20. quipment via the TDAS PLUS Mini Distributor With sufficient external power connected the TDAS PLUS Mini Distributor can be used to charge power TDAS PRO racks including any modules TDAS G5 Docking Stations and other TDAS equipment containing an internal battery Note The TDAS PLUS Crashworthy Battery is considered an external battery and should not be charged via the TDAS PLUS Mini Distributor The length of time required to charge all equipment depends primarily on the discharge state of the batteries Please see the discussion on Equipment Interconnections beginning on page 12 for information on how to connect the equipment together Attached TDAS equipment will charge with the toggle switch in either position When the toggle switch is in the iCrash or OFF position only output power is on When the toggle switch is in the ON position all internal control system electronics including output power are energized and the unit is fully functional This is the normal operating mode WARNING The TDAS PLUS Mini Distributor should NOT be used to charge any external battery including the TDAS PLUS Crashworthy Battery The TDAS PLUS Mini Distributor has no power management abilities suitable for this type of charging Improper charging can result in overheating possible leakage or severe battery damage Power Requirements of TDAS and SLICE Equipment TDAS and SLICE DAS use extensive power management to minimize power consump
21. s available support dtsweb com 18 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 Appendix C Input Power Calculations The TDAS PLUS Mini Distributor contains high efficiency power conversion circuitry with a wide input range and a well regulated 15 V output Note The 15 VDC power pass through unit does not provide regulated power Please see page 10 for additional information With an appropriate external power supply the system supplies optimal power for TDAS systems without having to worry about variable voltage drops through the input power cable It is very important that you choose a power supply and cabling carefully to ensure there is sufficient input voltage at the power input connector or Crashlink compatible interface of the TDAS PLUS Mini Distributor under all circumstances Power cables have resistance that depends upon the conductor diameter and increases with length For reference the following table identifies the nominal wire resistance by gage Gage Resistance per foot Resistance per meter 0 00162 Q 0 00531 Q 0 00258 Q 0 00846 Q 0 00408 Q 0 01338 Q 0 00652 Q 0 02139 Q 0 01036 Q 0 03398 Q 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 A per module or rack For each TDAS G5 DAS
22. tion The lowest power demand condition is during charging when power is off Current demand is at its maximum when the systems are fully armed and powering full sensor loads Power requirements for TDAS PLUS equipment vary greatly please review the appropriate user manual for information TDAS and SLICE User s Manuals are available from the Help menu within your software support ditsweb com 11 10500 00050 MAN Rev 2 TDAS PLUS Mini Distributor User s Manual January 2015 Power Consumption Power Off Power On per item charging battery armed max load TDAS PRO SIM TOM DIM 25mA Rack 600 mA TDAS G5 VDS incl DAS 600 mA SLICE PRO 500 mA For example the minimum current required to charge a TDAS PRO rack with 2 modules is 650 mA the maximum current required for the same system when operational is 3 A Equipment Interconnections The TDAS PLUS Mini Distributor is typically provided with a bench top power supply for system check out Please see Appendix A for connector information and pin assign ments Additionally cables from the TDAS System connectors to other TDAS equipment are typically provided with your unit To identify the specific hardware included with your system please see your packing list Connections should be made as follows 1 Connect the TDAS PLUS Mini Distributor s power supply to the DC power input or INTERFACE connector on the unit using the cable s provided A green power status LED
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