Manual ni k S88-4 ta m s el ek tro Item no.
English S88-4 Table of contents Getting started............................................................................3 2. Safety instructions.......................................................................5 3. Safe and correct soldering...........................................................7 4. Operation overview.....................................................................9 5. Technical specifications..............................................................11 6.
S88-4 English 1. Getting started How to use this manual ni k This manual gives step-by-step instructions for safe and correct assembly of the kit and fitting and connecting of the ready-built module, and operation. Before you start, we advise you to read the whole manual, particularly the chapter on safety instructions and the checklist for trouble shooting. You will then know where to take care and how to prevent mistakes which take a lot of effort to correct.
English S88-4 Checking the package contents Please make sure that your package contains: k Required materials For assembling the kit you need: an electronic soldering iron (max. 30 Watt) or a regulated soldering iron with a fine tip and a soldering iron stand, a tip-cleaning sponge, a heat-resistant mat, a small side cutter and wire stripper, as necessary a pair of tweezers and long nose pliers, electronic tin solder (0.5 mm diameter).
S88-4 English 2. Safety instructions Mechanical hazards Cut wires can have sharp ends and can cause serious injuries. Watch out for sharp edges when you pick up the PCB. ni Electrical hazards k Visibly damaged parts can cause unpredictable danger. Do not use damaged parts: recycle and replace them with new ones. ta m el ek Never perform wiring on a powered module. Assembling and mounting the kit should only be done in closed, clean, dry rooms. Beware of humidity.
English S88-4 Fire risk ni Thermal danger k Touching flammable material with a hot soldering iron can cause fire, which can result in injury or death through burns or suffocation. Connect your soldering iron or soldering station only when actually needed. Always keep the soldering iron away from inflammable materials. Use a suitable soldering iron stand. Never leave a hot soldering iron or station unattended.
S88-4 English In schools, training centres, clubs and workshops, assembly must be supervised by qualified personnel. In industrial institutions, health and safety regulations applying to electronic work must be adhered to. 3. Safe and correct soldering ta m el ek Use a small soldering iron with max. 30 Watt or a regulated soldering iron. Only use electronic tin solder with flux. When soldering electronic circuits never use soldering-water or soldering grease.
English To make a good soldering joint you must use a clean and unoxidised soldering tip. Clean the soldering tip with a damp piece of cloth, a damp sponge or a piece of silicon cloth. Cut the wires after soldering directly above the soldering joint with a side cutter. After placing the parts, please double check for correct polarity. Check the PCB tracks for solder bridges and short circuits created by accident. This would cause faulty operation or, in the worst case, damage.
S88-4 English 4. Operation overview ni k The feedback module S88-4 is compatible with all components working with the s88-bus developed by the company Märklin**. It can read in 16 mass contacts. This information is transferred via the s88-bus to the upstream module or to the connected digital unit (interface, memory or central unit). The data transfer from one feedback module to the other one works on the principle of the bucket brigade device.
English S88-4 With the feedback module S88-4 you can assign an address directly. This minimizes the effort when adding a new module between existing modules. Addressing the feedback modules S88-4 directly is also the condition for installing branching bus lines and radial layouts. tro Standard s88-N ni k It is possible to combine standard modules and S88-4 modules in one bus system.
S88-4 English 5. Technical specifications 16 Feedback log s88 Connections to the s88-bus (IN, OUT) RJ-45 according to S88-N Supply voltage 5 – 15 V d.c. voltage (provided by the s88-bus Protected to IP 00 ni 0 ... +60 °C -10 ... +80 °C el ek Ambient temperature in storage tro Ambient temperature in use k Number of mass contacts max. 85 % Dimensions of the PCB Dimensions including housing approx. 72 x 82 mm approx.
English S88-4 6. Assembling the kit You can skip this part if you have purchased a ready-built module or device. Preparation Put the sorted components in front of you on your workbench. Resistors Resistors reduce current.
S88-4 English Ceramic capacitors Among other things ceramic capacitors are used for filtering interference voltages or as frequency determining parts. Ceramic capacitors are not polarized. ni k Normally they are marked with a three-digit number which indicates the value coded. The number 104 corresponds to the value 100 nF. Diodes and Zener diodes el ek tro Diodes allow the current to pass through in one direction only (forward direction), simultaneously the voltage is reduced by 0,3 to 0,8 V.
English S88-4 Integrated circuits (ICs) Depending on the type, ICs fulfil various tasks. The most common housing form is the so-called "DIL"-housing, from which 4, 6, 8, 14, 16, 18 or more "legs" (pins) are arranged along the long sides. tro Microcontrollers ni k ICs are sensitive to damage during soldering (heat, electrostatic charging). For that reason in the place of the ICs IC sockets are soldered in, in which the ICs are inserted later.
S88-4 English Parts list 220 R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19 1 k k R20 R2, R3, R21, R24, R25 4,7 k R23 15 k R1, R22 ni Carbon film resistors 100 k RN1, RN2 Ceramic capacitors C1 bis C19 47 k 100 nF Zener diodes D12 6V2 Transistors for a low power rating Q1, Q2 BC547B Integrated circuits (ICs) IC1, IC2 4014N el ek tro Resistance networks 4044N IC7 4066N Microcontrollers IC8 PIC12F508P IC-sockets IC1, IC2 , IC3, IC4, IC5, 1
English S88-4 ta m s el ek tro ni k PCB layout Page 16
S88-4 English Assembly Proceed according to the order given in the list below. First solder the components on the solder side of the PCB and then cut the excess wires with the side cutter. Follow the instructions on soldering in section 3. tro ni k ! Caution: Several components have to be mounted according to their polarity. When soldering these components the wrong way round, they can be damaged when you connect the power. In the worst case the whole circuit can be damaged.
English S88-4 Transistors Observe the polarity! The cross section of transistors for a low power rating in SOT-packages is shown in the PCB layout. 8. Terminal strips Put together the double terminal strips before mounting them. 9. Rotary code switch Solder in the code switch so that you can adjust it from the outside after mounting it. 10. RJ-45 sockets Insert the ICs into the soldered socket.
S88-4 English 7. Connecting the S88-4 k The S88-4 has two RJ-45 sockets (IN, OUT) to connect commercial Ethernet patch-cables (RJ-45 cables), which allow an interference free connection to other feedback modules or digital devices. Use an adapter S88-A (optional extra) for the connection of digital devices or customary feedback modules with 6-pole connector.
S88-4 tro ni k English Example for a s88 bus system with branching data lines. Combination with standard feedback modules ta m s el ek You can combine the S88-4 module with standard feedback modules in a data line directly connected to the control unit or the interface. In this way you can mount a S88-4 module between existing standard modules, e.g. Example for mounting an additional S88-4 module between standard modules. The standard modules keep the addresses 1 to 3 assigned automatically.
S88-4 English tro ni k After branch connections of a data line, seen from the control unit or the interface, you can use S88-4 modules only. el ek Example for the combination of standard modules and S88-4 modules in one bus system. The standard modules can be used in data lines directly connected to the control unit or the interface only and not in branching data lines. Earth connection In systems with continuous mass (e.g.
English S88-4 Pin assignment RJ-45 socket for the connection of a downstream s88 module OUT RJ-45 socket or 6-pole connector for the connection of an upstream s88 module or digital device 1 … 16 Inputs for mass contacts 1 Example: Connection to a switching rail 7 Example: Connection to a contact rail 13 Example: Connection to a reed contact X2 Earth connection (if necessary) ta m s el ek tro ni k IN Page 22
S88-4 English ta m s el ek tro ni k Connections diagram Page 23
English S88-4 8. Assigning an address to the S88-4 ni k According to principle, the standard feedback modules in the s88 bus get an address automatically according to their position in the data line. Thus you have to assign addresses to the S88-4 modules which are higher as the highest address of a standard module. It is up to you to assign the addresses to the S88-4 modules. The addresses do not have to be appointed in ascending or descending order. It is possible to leave addresses unused.
S88-4 English =1 =2 =3 =4 =5 =6 =7 =n 0 1 2 3 4 5 6 7 8 n+1 1 2 3 4 5 6 7 8 9 n+2 2 3 4 5 6 7 8 9 10 n+3 3 4 5 6 7 8 9 10 11 n+4 4 5 6 7 8 9 10 11 12 n+5 5 6 7 8 9 10 11 12 13 n+6 6 7 8 7 8 9 8 9 10 9 10 11 12 13 A 11 12 13 14 B 12 13 14 C 13 14 15 D 14 15 E 15 16 ni tro 10 11 12 13 14 n+7 11 12 13 14 15 n+8 11 12 13 14 15 16 n+9 14 15 16 17 n+10 15 16 17 18 n+11 15 16 17 18
S88-4 tro ni k English ta m s el ek Example for numbering the S88-4 modules. The numbers behind the arrows correspond to the setting of the code switch. The S88-4 module with the address 4 cannot get a lower address, as the addresses 1 to 3 are used by standard modules. The code switch has to be set to "2" as one standard module is preceding. The S88-4 modules with the addresses 5, 6, 10 and 11 are preceded by three standard modules.
S88-4 English 9. Check list for troubleshooting Parts are getting too hot and/or start to smoke. ! Disconnect the system from the mains immediately! The central unit, the memory or the interface do not show the proper status. Possible cause: The connection(s) between the feedback module and feedback modules connected in series or the digital device are interrupted. à Check the connections.
English S88-4 Hotline If problems with your module occur, our hotline is pleased to help you (mail address on the last page). Repairs tro ni k You can send in a defective module for repair (address on the last page). In case of guarantee the repair is free of charge for you. With damages not covered by guarantee, the maximum fee for the repair is the difference between the price for the ready-built module and the kit according to our valid price list.
S88-4 English 10. Guarantee bond ni k For this product we issue voluntarily a guarantee of 2 years from the date of purchase by the first customer, but in maximum 3 years after the end of series production. The first customer is the consumer first purchasing the product from us, a dealer or another natural or juristic person reselling or mounting the product on the basis of selfemployment. The guarantee exists supplementary to the legal warranty of merchantability due to the consumer by the seller.
English S88-4 11. EU declaration of conformity This product conforms with the EC-directives mentioned below and is therefore CE certified. ni Connect the transformer only to an approved mains socket installed by an authorised electrician. Make no changes to the original parts and accurately follow the instructions, connection diagrams and PCB layout included with this manual. Use only original spare parts for repairs. tro k 2004/108/EG on electromagnetic.
English ta m s el ek tro ni k S88-4 Page 31
n n n tro http://www.tams-online.de n ni Information and tips: k n n el ek n n n s Warranty and service: ta m Tams Elektronik GmbH Fuhrberger Straße 4 DE-30625 Hannover fon: +49 (0)511 / 55 60 60 fax: +49 (0)511 / 55 61 61 e-mail: modellbahn@tams-online.
