LDT Littfinski Daten Technik Light-Display-F Operation Instruction

Littfinski DatenTechnik (LDT)

Operating Instruction

Light-Display-Module

for the

Light Control

connect the module via the “Kabel L@N” or via the screened
and therefore interference protected “Kabel Patch” (from

Light-Power Version 1.2 and Light-Display Version 1.7).
Light-Display-Modules contain 40 outputs with a maximum

load of 0.5 Ampere each. They are particular suitable for
switching light sources such as incandescent model railway

lamps or light emitting diodes (LED).

Light@Night and Light-DEC

Light-Display-F Part-No.: 050032

>> finished module <<

At least one Light-Display-Module and one Light-Interface

(LI-LPT or LI-LAN) will build together the hardware for the PC-

Layout-Light Control Light@Night.

The connection of a Light-Display-Module to a Light-DEC-

Basis-Module will create the basic unit for the

Layout Light Control Light-DEC.

Light-Display-Modules contain 40 light outputs with a

possible current load of 0.5 Ampere on each output .

The lighting effects (neon lamps, flashing blue light, light

chains, traffic lights and many others) can be assigned to 40

Suitable for analog and digital model railways.

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.

outputs.

CE Part-No.:

146 40 18

Introduction/Safety instruction:

You have purchased the Light-Display-Module for the Light
Control Light@Night and Light-DEC for your model railway.
The Light-Display-Module 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.
The finished module comes with 24 month warranty.

• Please read the following instructions carefully. Warranty will

Connect the Light-Display-Module:

• Attention: Before starting the installation switch off the

• The Light-Display-Modules contain a large capacitor

Connect the Light-Display-Module to the Light-Interface (LI­LPT or LI-LAN), to the Light-DEC-Basic-Module or to the
already available Light-Power- or Light-Display-Modules via

the 10-poles pin-plug-bar.
The pin bar shall not be inserted in offset position to the
socket bar.
The modules are correct inserted whenever the pc-boards
are flash at the top and at the bottom. The pictures at the rear
side of this instruction show the correct position of the modules.
Light-Power- and Light-Display-Module do not need to be
connected directly to each other. It is as well possible to

expire due to damages caused by disregarding the operating
instructions. LDT will also not be liable for any consequential
damages caused by improper use or installation.

drive voltage by pushing the stop button or disconnect
the main supply.

which has to be completely discharged before the Light­Display-Module can be connected or disconnected.
Please wait a couple of minutes after switching off the
supply transformer before you connect or disconnect the
Light-Display-Module.

OUT

IN

Voltage supply to the Display-Modules:

Each Light-Display-Module will get the voltage from a model
railway transformer via the clamp KL6.
The supply voltage can be between 10 and 18 Volt AC or
between 12 and 24 Volt DC.

If you use mainly light emitting diodes on your layout it is
possible that one 52VA transformer can supply more then
one Light-Display-Module. Picture 3 at the rear side of this
instruction shows how to arrange the supply of one
transformer to two Light–Display-Modules.

Please attend always to the same polarity (marked brown
and yellow) at the clamp KL6 of the connected Light-Display-
Module.
If you use incandescent lamps for illumination one 52VA
transformer can supply one Light-Display-Module. Also in
this case please attend always to the same polarity (marked

brown and yellow) at the clamp KL6 of the connected Light­Display-Module (Picture 4 at the rear side of this instruction).

Connect the Illumination:

Each Light-Display-Module contains 40 outputs. Model
incandescent lamps can be directly connected. LED`s

require a serial resistor (about 4,7kOhm, depending to the
input voltage on KL6).

Each output can be loaded up to max. 0.5 Ampere. For
clamping a connection cable onto one of the 40 outputs please
press carefully down the white lever and insert the cable from
the top into the clamp.

If the Light-Display-Module will be supplied with AC-voltage is
the DC-voltage at the 40 outputs about (1,414 * input voltage)
– 1.4 Volt. An AC input voltage of e.g. 15 Volt (on KL6) will give
a DC-voltage of about 20 Volt at the outputs.

If the Light-Display will be supplied with DC voltage on KL6
the output DC voltage will be lower by about 1,4 Volt related
to the input voltage. The interrelation between input and output
voltage will be shown on table 1 at the rear side of this
instruction.

The common positive pole for all outputs is clamp KL7
(Picture 1 at the rear side).
The common positive pole contains three inputs which can
be loaded with 1 Ampere each. Distribute the common
positive connection of the lamps and LED`s evenly to the three
positive clamps KL7 (Picture 2 at the rear side).

Picture 1: Incandescent lamps can be connected directly. For

From transformer

Light Emitting Diodes it is absolutely required to use a serial
resistor (about 4,7kOhm, related to the input voltage at KL6).

Leuchtdiode

GBS-Display / Light-Display

Rev. 1.8

Littfinski DatenTechnik (LDT)

Modellbahn­lämpchen
model incandescent
lamp

26272829303132

25

KL4 KL3 KL2 KL1

18192021222324

17

light-emitting diode
Vorwiderstand

series resistor

9

10111213141516

45678

123

Light Interface (LPT)

Rev. 1.0

Littfinski DatenTechnik (LDT)

C2

IC1

C1

Printer
Port
LPT

Picture 2: Each of the 40 light outputs can be loaded by up to
max. 0,5 Ampere. Each input of the three positive clamps (KL7)
can be loaded with max. 1 Ampere.

max. 0,5 Ampere

GBS-Display / Light-Display

Rev. 1.8

Littfinski DatenTechnik (LDT)

45678

26272829303132

25

KL4 KL3 KL2 KL1

18192021222324

17

9

10111213141516

123

C2

C1

Light Interface (LPT)

Rev. 1.0

Littfinski DatenTechnik (LDT)

IC1

Printer
Port
LPT

BU1

white
weiss

OUT

KL7

BU3

KL5

KL6

braun

10...18V~

39383736353433

40

12...24V=

braun
brown

Vom Modellbahntrafo
From transformer

BU2

gelb
yellow

gelb

BU1

ST1

white
weiss

IN

BU2

IC4

IC3

IC2

BU1

white
weiss

OUT

KL7

BU3

max. 1 Ampere

KL5

KL6

BU2

braun

gelb

10...18V~

39383736353433

40

12...24V=

braun

gelb

brown

yellow

BU1

ST1

white
weiss

IN

Vom Modellbahntrafo

BU2

IC4

IC3

IC2

Picture 3: If you illuminate your layout mainly with Light Emitting Diodes one 52 VA transformer can supply more then one Light­Display-Module. In this case attend always to the same polarity (marked brown and yellow) at the clamp KL6 of the connected Light­Display-Modules.

DMX

GBS-Display / Light-Display

Rev. 1.8

Littfinski DatenTechnik (LDT)

BU1

white
weiss

OUT

26272829303132

25

KL4 KL3 KL2

KL7

BU3

KL5

39383736353433

45678

9

101112131415161819202122232417

KL6

braun

10...18V~

40

12...24V=

123

GBS-Display / Light-Display

Rev. 1.8

Littfinski DatenTechnik (LDT)

KL1

BU1

ST1

white

white

weiss

weiss

BU2

gelb

OUT

IN

26272829303132

25

KL4 KL3 KL2

KL7

BU3

KL5

39383736353433

KL6

braun

10...18V~

40

12...24V=

braun
brown

Vom Modellbahntrafo
From transformer

45678

9

101112131415161819202122232417

gelb
yellow

123

IC7

D1

C2

KL1

C1

C4

IC8

ST1

BU1

C11

C21

white
weiss

BU2

IN

gelb

IC2

RN2

RN1

Littfinski DatenTechnik (LDT)

IC5

Q1

C6

L1

C9

IC6

C3

KL1 KL2 KL3 KL4

ST1

8

+5V

PC/

LAN

BU2

Trxcom

C8

KL5

C5

PC
LAN-Schnittstelle
(Interface)

CR1

C10

IC1

C20

C17
C18

IC3

C19

Taster

C14
C12

C15

C13C16

1234567

GND

Rev. 1.0

Light-LAN (Ethernet Interface)

Picture 4: If you illuminate your layout with incandescent lamps one 52VA transformer can supply one Light-Display-Module. If
possible please use only transformers from the same manufacturer and attend to the same polarity (marked brown and yellow) at the
clamp KL6 of the connected Light-Display-Modules.

45678

GBS-Display / Light-Display

Rev. 1.8

Littfinski DatenTechnik (LDT)

26272829303132

25

KL4

KL3 KL2 KL1

9

101112131415161819202122232417

123

Littfinski DatenTechnik (LDT)

GBS-Display / Light-Display

Rev. 1.8

braun

45678

26272829303132

25

KL4

KL3 KL2 KL1

9

101112131415161819202122232417

123

D1

brown

J

K

rot
red

K J

red brown

Optional:
Von DCC-Digitalzentrale
oder Booster
From DCC command station
or booster

KL5

Light-DEC V1.0

IC5

12:15:00 T 300

white
weiss

IN

BU1

ST1

Littfinski DatenTechnik (LDT)

Light-DEC-Service

Rev. 1.0

Littfinski DatenTechnik (LDT)

Light-DEC-Basis

Rev. 1.0

S2

S3

KL1 KL2 KL3 KL4

+5V

S1

S4

8

Taster / Button

R1

1234567

GND

BU1

white
weiss

KL7

OUT

BU3

Colored sample connections can be found on our Web-Site www.ldt-infocenter.com at the section “Sample Connections”.

KL5

KL6

braun

10...18V~

39383736353433

40

12...24V=

braun
brown

Vom Modellbahntrafo
From transformer

BU2

gelb
yellow

gelb

BU1

ST1

white

white

weiss

weiss

OUT

IN

KL7

BU3

KL5

KL6

braun

10...18V~

39383736353433

40

12...24V=

braun
brown

Vom Modellbahntrafo
From transformer

BU2

gelb
yellow

gelb

Table 1:

Input Voltage (KL6) Output Voltage Input Voltage (KL6) Output Voltage

AC-Voltage DC-Voltage DC-Voltage DC-Voltage

10 V AC 12,7 V DC
12 V AC 15,6 V DC 12 V DC 10,6 V DC
15 V AC 19,8 V DC 15 V DC 13,6 V DC
16 V AC 21,2 V DC
18 V AC 24,0 V DC 24 V DC 22,6 V DC

Littfinski DatenTechnik (LDT)

D-25492 Heist/Germany

Phone: [phone] / 977 381

Fax: [phone] / 977 382

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

Subject to technical changes and errors.  06/2016 by LDT

Made in Europe by

Kleiner Ring 9