ACCESSORY INTERFACE UNIT
Contents
1. BY MTH ELECTRIC TRAINS ACGESSORY INTERFACE UNIT OPERATOR S MANUAL Compatibility This device is compatible with any model railroading accessory or switch activated by an external power supply or control switch Consult the individual item s operator s manual for specific instructions on how to operate the accessory or switch PLEASE READ BEFORE USE AND SAVE Table of Contents Introduction To The ATU cece ccccccecccsccesccsccsccuccesccesccesecesceeseaeseaecs 3 Required LO OIG TTT 3 Installing The AIU Into The DCS System cccccccccccceeeceeeeeeeees 4 Wire To The TIU seen a NAR 4 Daisy Chaining AIUs Together ion iaia aaa asta 4 Programming AIUs Into The DCS System 5 Wiring Accessories And Switches iii 6 Operaume TackSecionisr rallo delinea 6 Switches And Tornoutssa sche lui ea ge aR cR caa toes 7 Accessories With Two COnLaCS 8 Accessories With Three Contacts c ccccssccsccsccsscoscceccesccessesees 9 Accessories With Four COntaCLS 10 Accessories With Five Comntacts cccccccsscescosccsccsecescoscosseccsncescass 11 Programming Individual Accessories And Switches Into The DCS System 12 Programimit ACCESSO ESen e aa bidet ii 12 Programin S WICIE Seesen E dude eset elven O 15 Activating Accessories And Switches 17 Troubleshooting AIU Problems 12. only to activate whatever is wired into the AIU and port you map so a mis mapped model will not activate Make sure you are using the AIU TIU cables included with the AIUs While other cables may look similar they may cause voltage drop and drain off too much power for the signal to reach the outer There is no reason the AIU should cause this Check your switch and wiring for defects See Page 7 19 Service amp Warranty Information How to Get Service Under the Terms of the Limited One Year Warranty For warranty repair follow the instructions below to obtain warranty service First e mail write or fax M T H Electric Trains to obtain Repair Authorization You can find the contact information for M T H by visiting www protosound2 com service Once there fill out the service request form and submit it via the web site After contacting M T H you will receive via email or phone a return authorization number and directions on where to ship the defective DCS component CAUTION Make sure the product is packed in its original factory packaging including its foam and plastic wrapping material so as to prevent damage to the merchandise The shipment must be prepaid and we recommend that it be insured A cover letter including your name address daytime phone number e mail address if available Return Authorization number a copy of your sales receipt and a full description of the problem must be included to facilitate
3. the repairs Please include the description regardless of whether you discussed the problem with a service technician when contacting M T H for your Return Authorization Please make sure you have followed the instructions carefully before returning any merchandise for service Limited One Year Warranty All M T H products purchased from an Authorized M T H Train Merchant are covered by this warranty See our website at www mth railking com or call 1 888 640 3700 to identify an Authorized M T H Train Merchant near you M T H products are warrantied for one year from the date of purchase against defects in material or workmanship excluding wear items such as light bulbs pick up rollers batteries smoke unit wicks and traction tires We will repair or replace at our option the defective part without charge for the parts or labor if the item is returned to M T H Electric Trains within one year of the original date of purchase This warranty does not cover damages caused by improper care handling or use Transportation costs incurred by the customer are not covered under this warranty Items sent for repair must be accompanied by a return authorization number a description of the problem anda copy of the original sales receipt from an Authorized M T H Train Merchant which gives the date of purchase If you are sending the item to M T H fill out the Service Contact form in the Service Section of www mth railking com send US
4. 9 Service amp Warranty Information ii 20 Limited One Y eat Wattles 20 CAUTION ELECTRICALLY OPERATED PRODUCT Not recommended for children under 10 years of age M T H recommends adult supervision with child ren ages 10 16 As with all electric products precautions should be observed during handling and use to reduce the risk of electric shock WARNING When using electrical products basic safety precautions should be observed including the following Read this manual thoroughly before using this device e M T H recommends that all users and persons supervising use examine the hobby transformer and other electronic equipment periodically for conditions that may result in the risk of fire electric shock or injury to persons such as damage to the primary cord plug blades housing output jacks or other parts In the event such conditions exist the train set should not be used until properly repaired e Donot operate your layout unattended Obstructed accessories or stalled trains may overheat resulting in damage to your layout This train set is intended for indoor use Do not use if water is present Serious injury or fata lity may result e Donot operate the hobby transformer with damaged cord plug switches buttons or case Introduction To The AIU The Accessory Interface Unit AIU turns the DCS System into a complete layout control system Each AIU controls up to 10 accessories and 10 switch
5. Two Contacts Examples Include Lighted Row House Operating Radar Tower Operating Rotary Beacon acca acca ecce acer accel accs acer JED E J HE HN E Dee EI 8 DCS Accessory Interface Unit Accessories With Three Contacts Examples Include Operating Semaphore Operating Block Signal Note Accessories controlled by a track activation device En TAD or infrared Bs BB track activation device ITAD can be wired up to the AIU as well as the TAD or ITAD Such a configuration will allow the accessory to be triggered remotely by the AIU and DCS remote or via a train on the track when passing by the TAD or ITAD Wire the accessory to the AIU as described on the preceding and following pages ASS ACC AEC O Bel Bel Be DCS Accessory Interface Unit 9 Accessories With Four Contacts Examples Include Operating Passenger Platform Ma daa ee ete U T 9 Note To control Pel pe T a gI lights and operation separately you can pa Jac 9 TE sott TS wire the lights into one ACC port and the operation wires into another 10 DCS Accessory Interface Unit Accessories With Five Contacts Examples Include Operating Car Wash Operating Gas Station Operating Firehouse EEN vo mR Gis BS L E vB H K eni DCS Accessory Interface Unit 1 Programming Individual Accessories amp Switches Into The DCS System Programming Accessories Turn
6. e page 13 14 for more Switch Name As Seen informationon naming accessories In Accessory List The switch will now show up by the name you have assigned on the switch screen when you press the DCS handheld s SW button See the DCS System Operating Instructions for complete instructions on editing and renaming switches and for instructions on adding and numbering TIUs 16 DCS Accessory Interface Unit Activating Accessories and Switches Once you have completed the wiring mapping and naming steps you can easily activate an accessory or switch 1 Press the handheld s ACC for accessory control or SW for switch control button 2 Scroll the thumbwheel until the arrow points to the accessory or switch you want to activate 3 Press the softkey under the option you choose see below for options Press ACC or SW Scroll To Select MIN ses remore covrrat Press Softkey Option MHF ses ammore contro For accessories the softkey options are ALL S U ON OFF ACT ALL triggers all accessories connected to any TIU and receiving track power S U takes you to the handheld s setup menu where you can add edit or delete an accessory ON turns accessories on for continuous operation until you turn them off OFF turns accessories off ACT activates accessories for single not continuous operation DCS Accessory Interface Unit 17 Activating Accessories amp Switches cont d For switches the
7. ed directly to AIU2 is AIU3 8 Select the AIU port ACC1 ACC10 the Select AIU To Use accessory is wired into TTT AG AT AGR ADET ASSE ATTI beea i ifs iff if iH iNe if ti Si 1I H Select Accessory Hie DCS REMETE CONTEO Di C BB Select Characters For Accessory Name Highlighted By Brackets MINE acs een aren DCS Accessory Interface Unit 13 Programming Accessories cont d Select Characters For 10 You may give the accessory a name up to 16 Accessory Name characters long Select the D at the end of the character set to signify that you are done with this function SMe DES REMOTE OAT 11 The accessory will now show up by the name you have assigned on the accessory screen when you press the DCS handheld s ACC button Select the pr See the DCS System Operating Instructions Character To Enter for complete instructions on editing and renaming Name For Accessory accessories and for instructions on adding and numbering TIUs SME once acre conan Accessory Name Seen In Accessory List SME as eee cova 14 DCS Accessory Interface Unit Programming Switches Turn off the power supply then make sure the switch has been wired into the AIU as shown in the preceding examples and according to your switch s instructions Power up to 18 volts and press READ on the DCS handheld to add your AIU to the DCS system see page 5 for more explanation Go
8. es turnouts and allows you to control routes and scenes through your remote control The AIU itself is essentially a box of relays that is especially designed to receive signals from the DCS System The remote tells the AIU which relay to trigger and it sets the accessory or switch into motion ul Connection Accessory Switch Port Connection Banks AIU l ACC Connection IN Armature of Relay Port 1 NO normally open Digital 2 NC normally closed Input W For Future Use IN AC Common 1 Straight Required Tools 2 Curved A flathead jeweler s screwdriver for wiring into the AIU DCS Accessory Interface Unit 3 Installing The AIU Into The DCS System Once you have completed the wiring and set up instructions below it is easy to activate accessories and throw switches using only the thumbwheel and a single softkey Be careful to wire each accessory as its instructions dictate and you will have your system working in no time Wiring To TIU Plug one end of the AIU TIU cable included into the TIU Input port on the AIU and the other end into the AIU Input port of the TIU Daisy Chaining AIUs Together Plug one end of the AIU TIU cable included with second AIU into the AIU Output port of the first AIU connected to the TIU and the other end into the TIU Input port of the second AIU Note You can daisy chain up to five AIUs foreach TIU on your layout 4 DCS Accesso
9. mail to the address listed below call 410 381 2580 or fax 410 423 0009 to obtain a return authorization number If you are sending this product to an Authorized Service Center contact that Center for their return authorization This warranty gives you specific legal rights and you may have other rights that vary from state to state Service Department M T H Electric Trains 7020 Columbia Gateway Drive Columbia MD 21046 1532
10. off the power supply then make sure the accessory has been wired into the AIU as shown in the preceding examples and according to your accessory s instructions Power up to 18 volts and press READ on the DCS handheld to add your AIU to the DCS system see page 5 for more explanation Go through the DCS handheld s menu as follows Scroll And Select 1 Press the Black MENU button to bring up the four main System menus in the DCS system 2 Using the thumbwheel Shh BCS AFNOT CINTRO Press Menu scroll down the menu list until you arrive at System 3 Press the thumbwheel to enter the System Menu Your screen should reveal Scroll Amd Select at the bottom that you are Accessory Setup in the System Menu Hie DES RETTE CONTRO 4 Scroll and select Accessory Setup from the available choices in the System Menu 5 Scroll and select Add Accessory from the available choices in the Accessory Setup Menu 12 DCS Accessory Interface Unit Programming Accessories cont d 6 Select which TIU the accessory 19 wired to via the AIU See the TIU Setup section in the DCS User s Manual for how to number TIUs 7 Select which AIU the accessory is added to To determine the AIU s Select TIU To Use number simply count out from the TIU For instance if you SPE oes err Cowra have three AIUs the one connected directly to the TIU is AIUI the one connected directly to AIU1 is AIU2 and the one connect
11. ry Interface Unit Programming AIUSs Into The DCS System Before you can add accessories and switches for activation by DCS you must first read all connected AIUs into the system With all TIUs and AIUs properly wired and the transformer set to 18v press READ on the DCS handheld The system will automatically locate and add new AIUs to its map See the DCS System Operating Instructions for complete instructions on adding and numbering the TIUs on your system fin BOS REMOTE CONTAN Ste avers DCS Accessory Interface Unit 5 Wiring Accessories and Switches Revised Diagram You can wire up to 10 accessories plus 10 switches into each AIU Because accessories come in so many different configurations you should carefully check the wiring instructions for each specific accessory before connecting to the AIU Below are general guidelines to help you complete this wiring Operating Track Sections Wired For Track Power ri ow awa Ewa Rig ove gest eve evr owe LI i i L i i E pe acti T acca aota acta acca acet j aoci j acce acce i ipj T E iH i ipi H i i iH i ji JIH G eH ki H be 0 NH HR ACCA ACCS ACCE ACCT ACCS ACCI ACCIO iH 1 N zji sE iN d 71 iH 19 2 6 DCS Accessory Interface Unit Switches Turnouts ieri beer Fer r a ey baer ee e SVI SW2 5W3 SW SWS 129 128 120 RI AC Ground Curved DCS Accessory Interface Unit Accessories With
12. softkey options are ALL S U ff or ALL triggers all switches connected to any TIU and receiving track power to move into the position you select S U takes you to the handheld s setup menu where you can add edit or delete a i Li ES REMOTE CONTRO switch throws the switch straight throws the switch curved Note Unlike with engines the ALL button for accessories and switches does not distinguish between active and inactive The button activates every accessory or switch that is connected to a TIU and receiving track power 18 DCS Accessory Interface Unit Troubleshooting DCS AIU Problems Although DCS has been designed and engineered for ease of use you may have some questions during initial operation The following table should answer most questions If your problem cannot be resolved with this table visit the MTH Proto Sound web site for more information and instructions for contacting MTH for direct service www protosound2 com Accessory Switch Doesn t Activate Remedy When I activate the accessory switch from Check to make sure the accessory switch the handheld nothing happens or the wrong accessory switch activates AIUs Don t Respond Ihave multiple AIUs daisy chained together but the accessories on the last AIUs in the chain do not activate properly Switch Sticks The switch opens but won t close DCS Accessory Interface Unit is mapped correctly in the handheld The DCS system knows
13. through the DCS handheld s menu as follows 1 Wire the switch into the AIU as shown in the AIU user s manual and your track s instructions Scroll And Select System 2 Go through the DCS handheld s menu as follows SME acs ewer coven A Press Menu Button Press Menu B Select System Scroll Amd Select Switch Setup C Select Switch Sire 86 ST cy Setup Fe D Select Add Switch Select Add Switch MINE scream H Select TIU To Use 3 Select which TIU the switch is wired to via the AIU SME sera conn DCS Accessory Interface Unit 15 Programming Switches cont d Select AIU To Use 4 Select which AIU the switch is added to See the explanation for counting AIUs in the SME arr acer nurse Programming Accessories section on page 13 5 Select the AIU port SW1 SWI0 the switch is wired into Select Switch AHE ones seer cora hex SAS SME SVY SA 5 va EEJ EEJ EEJ BI Select Characters For Accessory Name 4 The LCD prompts you to name the switch Highlighted By Brackets and an alphanumeric character set is displayed Se aeaa Use the thumbwheel to scroll through the HRE serene a character set and when the character you want to type next is bracketed press the thumbwheel to select it You may give the switch a name up to 16 characters long Select the D at the end of the character set to signify that you are done with this function Se
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