User manual

ManualsBrandsLDT LITTFINSKI DATEN TECHNIK ManualsModel Train Electronics0 Signal decoders Assembly kit, w/o cable, w/o connector

Littfinski DatenTechnik (LDT)

s88-N

Feedback Module

with integrated

8-fold track occupancy detector

for the s88-feedback bus

from the Digital-Professional-Series !

RM-GB-8-N-B Part-No.: 320101

>> kit <<

⇒ controls up to 8 different tracks

(current detection from 0,001[1mA] up to 3 ampere).

⇒ integrated voltage control

(avoiding “track free” feedback in case of power failures).

⇒ separated by opto isolation

(between track voltage and feedback bus).

⇒ s88 standard connections and s88N

(with 6-poles s88-pinbars and RJ-45 sockets].

⇒ suitable for following digital control systems:

Märklin Digital~/=, Central Station 1 and 2, Intellibox, TWIN-

CENTER, HSI-88 (-USB), EasyControl, ECoS, DiCoStation.

This product is not a toy! Not suitable for children under 14 years of age! The kit

contains small parts, which should be kept away from children under 3! Improper

use will imply danger of injuring due to sharp edges and tips! Please store this

instruction carefully.

CE Part-No.:

1370369

Introduction:

You have purchased the 8-fold feedback module RM-GB-8-N

with integrated detection of track occupancy for your model

railway. The RM-GB-8-N is a high quality product that is

supplied within the assortment of Littfinski DatenTechnik

(LDT).

We are wishing you having a good time using this product.

Feedback modules RM-GB-8-N of the Digital-Professional-

Series can be operated with your digital model railway without

any problems.

The RM-GB-8-N is suitable for all digital model railways with

s88 feedback bus.

General:

Tools required for the assembly

Please assure that the following tools are available:

• a small side cutter

• a mini soldering iron with a small tip

• solder tin (if possible 0,5mm diameter)

Safety Instructions

• All electrical and electronic components included in this kit

shall be used on low voltage only by using a tested and

approved voltage transducer (transformer). All components

are sensitive to heat. During soldering the heat shall be

applied for a very short period only.

• The soldering iron develops up to 400°C. Please keep

continual attention to this tool. Keep sufficient distance to

combustible material. Use a heat resistant pad for this work.

• This kit consist of small parts, which can be possibly

swallowed from children. Children (especially under 3 years)

shall not participate on the assembly without supervision.

Set-Up:

For the board assembly please follow exact the sequence of

the below assembly list. Cross each line off as done after

completing the insertion and the soldering of the respective

part.

For the diodes please keep special attention to the correct

polarity (marked line for the cathode).

With reason to different makes of electrolytic capacitor you

will find different markings of the polarity. Some are marked

with "+" and some are marked with "-". Each capacitor has to

be assembled to the board that the marking on the capacitor is

in correspondence with the marking on the pc-board.

Integrated circuits (IC`s) are either marked with a half round

notch on one end or a printed point for the correct mounting

position. Push the IC`s into the correct socket assuring that the

notch or the printed point is corresponding to the half-rounded

marking on the pc-board.

Please attend to the sensitivity of the ICs to electrostatic

discharge, which will cause immediate damage of the IC.

Before touching those components please discharge yourself

by contacting an earthed metal (e.g. radiator) or work with an

electrostatic safety pad.

Before assembling the clamps please connect the 2-pole and

the 3-pole clamps together to a block with 14 connections.

Please glue the below two label onto the RJ-45 sockets for the

identification of the output socket BU1 (wire directed to the

central unit) and BU2 (wire from the next feedback unit).

s88-N

OUT

s88-N

Label for BU1 Label for BU2

Assembly List:

Made in Europe by

Littfinski DatenTechnik (LDT)

Kleiner Ring 9

D-25492 Heist/Germany

Phone: 0049 4122 / 977 381

Fax: 0049 4122 / 977 382

Internet: http://www.ldt-infocenter.com

Subject to technical changes and errors.  07/2015 by LDT

Märklin and Arnold are registered Trademarks.

Assembly Instruction

Pos.

Qty.

Component

Note

Ref.

Done

1 1 Printed Circuit Board

2 8 Resistors 39Ohm orange-white-black-gold R1..R8

3 1 Resistor 1MOhm brown-black-black-yellow R9

4 2 Resistors 4,7kOhm yellow-violet-black-brown R10, R17

5 4 Resistors 22kOhm red-red-black-red R11..14

6 1 Resistor 82kOhm gray-red-black-red R15

7 1 Resistor 100kOhm brown-black-black-orange R16

8 1 IC-Socket 18poles IC1

9 4 IC-Sockets 16poles IC2,3,5,6

10 1 IC-Socket 8poles IC4

11 3 Capacitors 100nF 100nF = 104 C1..C3

12 1 Resonator 2MHz CR1

13 1 Electrolytic-cap. 22uF/25V attend to the polarity! C4

14 2 6 Pin contact bar header ST1, ST2

15 32 Diodes BY251 attend to the polarity! D1..D32

16 6 Clamps 3poles form blocks before assembly KL1..6

17 1 Clamp 2poles form blocks before assembly KL7

18 2 RJ45 Sockets BU1, BU2

19 1 IC: Z86E0412PSC attend to the polarity! IC1

20 1 IC: 4052 attend to the polarity! IC2

21 1 IC: 4014 attend to the polarity! IC3

22 1 IC:LTV824 attend to the polarity! IC4

23 2 IC:LTV844 attend to the polarity! IC5, 6

End Control

Summary of content (4 pages)

PAGE 1
8-fold track occupancy detector for the s88-feedback bus from the Digital-Professional-Series ! RM-GB-8-N-B Part-No.: 320101 >> kit << ⇒ ⇒ ⇒ ⇒ ⇒ controls up to 8 different tracks (current detection from 0,001[1mA] up to 3 ampere). integrated voltage control (avoiding “track free” feedback in case of power failures). separated by opto isolation (between track voltage and feedback bus). s88 standard connections and s88N (with 6-poles s88-pinbars and RJ-45 sockets].
PAGE 2
Soldering instruction Provided you have no special experience in soldering electronic components please read first this soldering instruction before starting the job. Soldering has to be trained! 1. Never use additional fluxes for soldering electronic circuits which contain acids (e.g. zinc chloride or ammonium chloride). Those can destroy components and printed circuits when not washed off completely. 2. As soldering material only lead free soldering tin with a rosin core for fluxing should be used. 3.
PAGE 3
Littfinski DatenTechnik (LDT) Operating Instruction Feedback Module with integrated 8-fold track occupancy detectors for the s88-feedback bus from the Digital-Professional-Series ! RM-GB-8-N-F Part-No.: 320102 >> finished module << ⇒ controls up to 8 different tracks (current detection from 0,001[1mA] up to 3 ampere). ⇒ integrated voltage control (avoiding “track free” feedback in case of power failures). ⇒ separated by opto isolation s88-N s88-N OUT IN (between track and feedback bus).
PAGE 4
The s88 feedback bus of digital central units and interfaces can mostly supply a maximum load of up to 0,5 Amp. If the maximum quantity of 62 feedback modules RM-GB-8-N are connected, the bus has to supply 62 x 0,003A = 0,186A. If you want to extend your model railway layout with RM-GB-8N feedback modules you can easily combine those with our feedback modules RM-DEC-88(-Opto) and RM-88-N(-Opto) or s88 feedback modules of other manufacturers.