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Littfinski DatenTechnik (LDT)

Multi-Digital

Light emitting diodes have to be assembled that the long wire of the diode

corresponds to the mark "+" of the pc-board. Before assembly please slip the distance

spacer onto the connection wires.

The resistor-network RN1 is marked at one end for the assembly position with

“...103...” and additionally with a printed circle or a square. Assemble this component

that way that the marking corresponds with the marking at the first bore of the pc-

board. Additionally is the first bore marked with “1”.

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. The 4-poles integrated circuit LTV814 (IC6) shall be

soldered directly onto 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. earthed radiator) or work with an

electrostatic safety pad.

Assembly of the DB4-Power PC-Board:

After completing the DB-4 basic pc-board you can assemble the SMD-pre-assembled

and tested DB4-Power PC-Board.

Firstly please tighten the two distance spacer to the basic pc-board with two of the four

cross section screws.

Apply now the DB4-Power PC-Board into the socket bar BU4 of the basic pc-board.

Pay attention that there is no offset of the DB4-Power PC-Board to the socket. The

DB4-Power PC-Board is in correct position at the socket bar BU4 of the basic pc

board if you can screw the DB-Power PC Board to the distance bolts.

The following picture 1 show the assembly procedure from the side view and the

picture 2 show the assembled DB4-Power-PC Board onto the basic PC-Board with

sight from the top.

Schraube

screw

DB-4-Basis

Distanzbolzen

distance spacer

DB4-Power

Schraube

screw

DB4-Power

Rev. 1.4

Littfinski DatenTechnik (LDT)

IC4 IC5

ST1

C11

IC1

C1 C2

C10

IC3

IC2

1 3 5 7 9 11 13

17 19

2 4 6 8

10 12 14 16 18 20

JP5

2,5

4,5

ShortReport

RailCom

GoAuto

ON OFF

JP4

JP3

JP2

JP1

MM DCC

BU1

DB-4

Rev. 1.4

Littfinski DatenTechnik (LDT)

STOPGO

LED2LED1

red brown

KL3KL4KL2

STOP/GO

EDC

BU2

BU3

ST2ST1

IN OUT

Feedback

KL1

Picture 1 Picture 2

DigitalBooster DB-4

from the Digital-Professional-Series !

DB-4-B Part-No.: 080071

>> kit <<

The DigitalBooster DB-4 is a short-circuit-proofed power

amplifier (booster) for digital model railway layouts.

It provides a maximum digital current of 2,5 or 4,5 Ampere.

The DB-4 amplifies the digital formats of Märklin-Motorola,

mfx

, M4 and DCC.

The DB-4 can operate on several digital command stations

by using the 5-poles booster bus, the CDE-booster bus or

the Roco-booster bus.

The DigitalBooster DB-4 receives the power supply not from

a classical model railway transformer but from the switched

mode mains power supply DB-4 PowerSupply. On this unit is

the stabilized digital track voltage adjustable between 15 and

24 Volt, suitable for all track gauges.

This product is not a toy! Not suitable for children under 14 years. Improper use will imply danger or injuries due

to sharp edges and tips! Please store this instruction carefully.

CE Part-No.:

1370364

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, Motorola and mfx are registered trademarks.

Assembly Instruction

Summary of content (22 pages)

PAGE 1
Light emitting diodes have to be assembled that the long wire of the diode corresponds to the mark "+" of the pc-board. Before assembly please slip the distance spacer onto the connection wires. Littfinski DatenTechnik (LDT) Assembly Instruction The resistor-network RN1 is marked at one end for the assembly position with “...103...” and additionally with a printed circle or a square. Assemble this component that way that the marking corresponds with the marking at the first bore of the pcboard.
PAGE 2
Introduction: You have purchased a kit for your model railway supplied within the assortment of Littfinski DatenTechnik (LDT). These kits are of high quality and easy to assemble.
PAGE 3
Littfinski DatenTechnik (LDT) Kleiner Ring 9 • D-25492 Heist/Germany • Phone: 0049 4122 / 977 381 • Fax: 0049 4122 / 977 382 Manual DigitalBooster DB-4 The DigitalBooster DB-4 is a short-circuit protected Power-Amplifier (Booster) for digital Model Railway Layouts from the Digital-Professional-Series! The DB-4 amplifies the digital formats of MärklinMotorola, mfx®, M4 and DCC. DB-4-G Part-No.
PAGE 4
DigitalBooster DB-4 – Manual Content: Page 1. Preface / Safety Instruction 2 2. DB-4 connection to the digital command station or to other boosters 3 2.1. DB-4 connection via the 5-poles Boosterbus 3 2.2. DB-4 connection via the CDE-Boosterbus 5 2.3. DB-4 connection via the Roco-Boosterbus 5 3. 4. DB-4 connection to the Switched Mode Mains Power Supply DB-4 PowerSupply 6 DB-4 connection to an Own Track Section 6 4.1. 3-conductor Track System 7 4.2. 2-conductor Track System 9 5.
PAGE 5
DigitalBooster DB-4 – Manual 1. Preface / Safety Instruction: You have purchased the DigitalBooster DB-4 within the assortment of Littfinski DatenTechnik (LDT) for your model railway layout. We are wishing you having a good time using this product! The finished module in a case comes with 24 month warranty. • Please read the following instructions carefully. Warranty will expire due to damages caused by disregarding the operation instructions.
PAGE 6
DigitalBooster DB-4 – Manual 2. DB-4 connection to the Digital-Command-Station or to other Booster: The galvanic separated boosterbus connections enables the application of the DigitalBooster DB-4 in connection with several command stations by using the 5poles Boosterbus, the CDE-Boosterbus or the Roco-Boosterbus. The DB-4 is no Booster-Adapter. A change of the bus-system is impossible. The booster-bus used for the connection of the first DB-4 to the digital command station has to be used furthermore.
PAGE 7
DigitalBooster DB-4 – Manual Please connect a plug of the 5-poles boosterbus cable onto the command station or to the previous booster. The connection of the plug is correct at the Control Unit, Intellibox, TWIN-CENTER, Märklin Booster 6017, Power 2 and Power 3 if the direction of the cable shows to the bottom. For the Märklin Booster 6015 is the correct position of the Boosterbus-Cable showing to the top.
PAGE 8
DigitalBooster DB-4 – Manual 2.2. DB-4 connection via the CDE-Boosterbus: If your Command Station contains a CDE-Boosterbus the connection to the DigitalBoosters DB-4 can be realized with three cables. Connect the connection wires C, D and E of the Command Station with the clamps C, D and E of the following DigitalBooster DB-4.
PAGE 9
DigitalBooster DB-4 – Manual Gleisbereich 2 Track section 2 braun brown rot red braun brown rot red J K J K MM DCC RailCom Auto Go 2,5 4,5 ON OFF ShortReport JP5 JP4 JP3 JP2 JP1 J S1 red brown LED2 MM DCC RailCom Auto Go K STOP ON OFF ShortReport GO LED1 BU1 KL1 GO K STOP LED1 JP5 JP4 JP3 JP2 JP1 BU1 + + + LED2 Littfinski DatenTechnik (LDT) KL1 Digital-Profi werden! DigitalBooster DB-4 DB-4 2,5 / 4,5 Ampere Booster für die Digitalformate MärklinMotorola, mfx®, M4 und D
PAGE 10
DigitalBooster DB-4 – Manual The digital current of the DigitalBooster DB-4 is available at the clamp KL1 next to the two light emitting diodes. The DB-4 supplies digital current to the own track section via this clamp. This section has to be electrical separated from the adjoining track sections because those receive their supply from the digital command station with integrated booster or from further booster. 4.1.
PAGE 11
DigitalBooster DB-4 – Manual Alternative is it possible to use our Booster Keep Separate Module BTM-SG for the cross over joints. This module separates electrically definite the booster sections without rocker switch and provides the possibility to drive at slow speed at the cross over sections.
PAGE 12
DigitalBooster DB-4 – Manual 4.2. 2-Conductor Track System: If the manufacturer of your digital command station permits a common layout ground (“brown” or “J”) one rail of the 2-conductor track has to be isolated at the cross over joints from one to the next booster electrical circuit. If the manufacturer of your digital command station does not permit a common layout ground („brown“) both rails have to be isolated at the cross over joints.
PAGE 13
DigitalBooster DB-4 – Manual 5. Booster in Operation: All jumpers of the DB-4 are set ex-factory. The DigitalBooster DB-4 can be used immediately at the supplied condition. The factory setting is recommended for the first implementation of the unit. For selecting different operation modes after the first implementation please attend to the chapter “Adjusting Operation Modes with Jumpers”. After switching-on the model railway layout at first the red LED of the DigitalBooster DB-4 will glow.
PAGE 14
DigitalBooster DB-4 – Manual If you use a larger and therefore mechanically and electrically more rugged gauge you can remove the jumper J5. The DigitalBooster DB-4 will now supply a maximum digital current of 4,5 Ampere to the connected track. 6.2. Select the Data Format for WatchDog- and On-/Off switch function: The jumper J4 has been set ex-factory.
PAGE 15
DigitalBooster DB-4 – Manual With the output “Feedback“ of the DigitalBoosters DB-4 is it possible to inform your model railway software if the tracks receive presently digital current from the DB-4 or if the tracks are switched voltage-free caused by a short-circuit. 6.5. Automatic Switch-On (Auto Go): With the jumper J2 “Auto Go” is it possible to adjust the DigitalBooster DB-4 that the unit perform a continuous check every 5 seconds if a short-circuit is still present.
PAGE 16
DigitalBooster DB-4 – Manual The following programming samples are indicating how to employ four-fold address groups with 8 keys of a switch board. The address has been indicated between the respective pair of keys. The two keys red and green for each address are the two possible switch directions of this address with reference to the turnout direction round and straight. If you use a remote control LH100 of company Lenz Elektronik there will be red the minus- and green the plus key.
PAGE 17
DigitalBooster DB-4 – Manual At the following sample the On-/Off switch function assign the four-fold address block 1 to 4 and the WatchDog-Function the addresses 5 to 8. The On-/Off switch function will be controlled by the address 3 and the WatchDogFunction with the address 5. not used not used On-/Off sw.
PAGE 18
DigitalBooster DB-4 – Manual The programming for the on-/off switch function is now completed but can repeated at any time. 3. Depress now again the key S1 to come into the programming mode for the address section of the WatchDog-Function. The red LED flashes. 4. Switch now one turnout from the group of four which has been selected for the address section of the WatchDog-Function via the keyboard of the digital command station or the remote control.
PAGE 19
DigitalBooster DB-4 – Manual After a new start of the digital command station, PC and model railway software the DigitalBooster DB-4 will react immediately to the received commands and will supply again digital current to the tracks. If the model railway software will be finalized the software will deactivate at first the WatchDog-Function with the command basic address “round” and the layout can now operate without PC via the digital command station. 9.
PAGE 20
DigitalBooster DB-4 – Manual The external Stop/Go keys are only emergency shut-down keys if the jumper J1 “Short Report” has been set. In this function can be all boosters (as well as eventually integrated booster of the digital command station) all together switched-off. The switching-on of all boosters can be done only with the Go-Key of the digital command station.
PAGE 21
DigitalBooster DB-4 – Manual 11. Feedback Report for Booster-Management: The DigitalBooster DB-4 contains a Feedback Output for the information to the model railway software if the tracks receive digital current from the DB-4 or if this has been temporarily interrupted caused e.g. by a short circuit or by an emergency shutdown.
PAGE 22
DigitalBooster DB-4 – Manual 12. Assembly Plan of the Basic PC-board: 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 Motorola are registered trademarks. *RailCom® is a registered trademark from the company Lenz Elektronik, Giessen, Germany.