manuals.online logo
Brands
  1. Home
  2. •
  3. Brands
  4. •
  5. LDT
  6. •
  7. Media Converter
  8. •
  9. LDT M-DEC-MM-F User manual

LDT M-DEC-MM-F User manual

L
ittfinski
D
aten
T
echnik (
LDT
)
Operating Instruction
Multi-Digital
4-fold decoder for motor
driven turnouts
with external power supply possibility
from the Digital-Professional-Series !
M-DEC-MM-F
Part-No.:
410512
>> finished module <<
Suitable for the Märklin-Motorola-Format:
(e.g. Märklin-Digital∼[ Control Unit, Central Station 1
and 2], Intellibox,EasyControl, ECoS, KeyCom-MM,
DiCoStation EDiTS, EDiTS pro and others)
For the digital control of :
⇒Up to four turnout motor drives.
(e.g. drives from Fulgurex, Pilz or Hoffmann/Conrad)
⇒Motor current per output up to 1A.
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.:
24 00 04
red point
Introduction/Safety instruction:
You have purchased the 4-fold decoder M-DEC-MM for motor
driven turnouts for your model railway as a kit or as finished
module. The M-DEC-MM is a high quality product that is supplied
from the
Digital-Professional-Series
of Littfinski DatenTechnik
(LDT).
We wish you having a good time using this product.
The decoder M-DEC of the
Digital-Professional-Series
can be
easily installed and used on your digital railway.
The colored dot on the receiver device indicates to which
digital system the decoder can be adapted.
In case the receiver device is marked blue the M-DEC will be
suitable for the DCC Data format, used for instance at the
systems of Arnold-Digital, Intellibox, Lenz-Digital Plus, Roco-
Digital, TWIN-CENTER, Digitrax, LGB-Digital, Zimo, Märklin-
Digital=, EasyControl, KeyCom-DC, ECoS and DiCoStation.
In case the receiver device is marked red the decoder is
suitable for Märklin-Digital~ respectively for Märklin-Motorola
layouts.
The finished module comes with 24 month warranty.
•Please read the following instructions carefully. Warranty will
expire due to damages caused by disregarding the operating
instructions. LDT will also be not liable for any consequential
damages caused by improper use or installation.
Connecting the decoder to your digital model
railway layout:
•Attention: Before starting any installation work switch off
the supply voltage to the digital installation by disconnect
all transformer power plugs of the main supply.
The decoder receives the digital information via the clamp KL2.
Connect the clamp with a rail or even better connect the clamp
directly to the command station or to a booster assuring
supply of digital information free from any interference.
Pay attention to the mark at clamp KL2. The color markings
'Black/Schwarz' and 'Red/Rot' next to the clamp are used for
Arnold-Digital (old) and Märklin-Digital=.
Other systems uses the letters 'J' and 'K'.
If you use the decoder with Märklin Digital~ components or
with Intellibox you have to connect the digital wires to 'red/rot'
and 'brown/braun'.
The decoder receives the power supply via the two poles clamp
KL1. Voltage in the range of 12 to 18V~ is acceptable (alternate
current output of a model railway transformer) or 15...24 V=
(direct current from a switched mode power supply).
If you do not want to supply power to the decoder M-DEC from
an external transformer you can connect the clamp KL1 to
KL2 with two wires. In this case the decoder will get the power
supply complete from the digital system.
Programming the decoder address:
To program the decoder address a motor driven turnout has to
be connected to the output 1 (clamp KL9) of the decoder.
•Switch on the power supply of your model railway.
•Depress the programming key S1. Do not touch the
integrated circuits of the pc-board because any electrostatic
discharge can destroy the IC`s.
•The turnout drive connected to output 1 will now move a little
every 1.5 seconds. This indicates that the decoder is in the
programming mode.
•Is the motor not moving it is possible that the motor drive
contains directional diodes. In this case switch off the power
supply and turn around the two connection wires on output 1.
After switching power on the turnout drive should move of a
1.5 second interval.
•Depress now one key of the key group to be assigned to the
decoder. For programming the decoder address you can also
release a turnout switch signal via a personal computer.
Remarks: The decoder addresses for magnet accessories
are combined in groups of four. The address 1 to 4 build the
first group. The address 5 to 8 build the second group etc.
Each M-DEC decoder can be assigned to any of these
groups. Which turnout of a group will be activated for the
addressing does not matter.
•If the decoder has recognized the assignment correctly the
connected turnout will move a little faster. Afterwards the
movement slows down to the initial 1.5 seconds again.
In case the decoder will not recognize the address it could be
that the two digital information connections (clamp 2) are
wrong connected. For testing this, switch the power supply
off, exchange the connection on KL2 and start addressing
again.
•Leave the programming mode by depressing the
programming key S1 again. The decoder address is now
permanently stored but it can be changed at any time by
repeating the programming as described above.
•If you depress the first key of the programmed group of keys
or you send a switch signal for this turnout from a PC the
addressed turnout drive should move into the called direction
until end stop.
Please attend to the following:
•All 4 decoder outputs can supply a motor current of 1
Ampere. As the moving time of the drives is only some
seconds the tracking time of the decoder output is adjusted
to 10 seconds. This indicates that the respective output will
be switched off from power 10 second after the end of the
switch command. This assures that a defect end switch will
not destroy a drive with continuous current.
•The motors of turnout drives can create considerable
electromagnetic interference. Normally the decoder
M-DEC will not be influenced by this interference. In case the
decoder will be influenced please check the turnout motor
installation cables. Those cables should not wrap or cross
the decoder closely. Install the cables that way that they go
straight away from the clamps of the decoder. If limited space
requires a bad installation layout and the function of the
decoder will be disturbed please push about 5 ferrous pearls
onto each motor cable.
These ferrous pearls are available at electronic shops or at
LDT with the order code `FP`.
Another possibility is to solder an interference capacitor
(between 1nF and 10nF) across each motor. Fulgurex drives
need this capacitor in any case.
Sample connections:
Spannungsversorgung
12 ... 18V~
15 ... 24V=
3
4
1
2
Fulgurex
Pilz/Tillig
M-DEC
Digitalinformationen
(von Steuereinheit oder Booster)
Hoffmann
Conrad
The above draft provides an example how to connect the
different drives directly to the M-DEC without any additional
circuitry.
Further application and circuit examples can be found in the
Internet on our Web-Site (www.ldt-infocenter.com) at the
section downloads/sample connections.
Accessory:
For the assembly of the M-DEC below your layout base plate we
offer an assembly set under the order code MON-SET. For the
assembled kits and the finished modules we offer from version
2.0 a suitable case under the order code LDT-01.
Trouble shooting:
What to do if something is not working as described above?
If you have purchased the decoder as a kit please check carefully
all parts and soldered joints.
Here some possible functional errors and possible solutions:
1. During programming of the decoder addresses the motor
moves within 1.5 seconds, but does not confirm the
programming with faster movement by pressing any key.
•Change cable connections at KL2.
•Interfered digital information at KL2 respectively lost of
voltage at the tracks or at the installation!
Connect the decoder directly with cables to the digital control
unit or to the booster instead to the tracks. Increase the
cable diameter for long distances.
•Eventually the clamps have been tightened to strong and
therefore the clamps got loose at the soldering to the pc
board. Check the soldering connection of the clamps at
the lower side of the pc-board and re-solder them if required.
•For kits: Is IC5 correct inserted into the socket? Has resistor
R6 actually 220 kOhm or has this resistor been mixed-up
with the 18kOhm resistor R5?
2. The programming of the decoder address functions as
described, nevertheless the connected turnouts will not be
activated.
•Interfered digital information on KL2 respectively larger
lost of voltage at the tracks or the installation result to
unsafe data transfer! Connect the decoder directly to the
command station or the booster. Increase the cable
diameter of long distance connection cables.
•For the kit: Is IC4 correct inserted into the socket?
3. The drive moves not until the end switch but stops after a
short movement. The decoder shows not any reaction after
some commands.
•This can happen especially by Fulgurex-drives without
interference capacitor. Solving: solder an interference
capacitor (1nF) directly to the motor connection clamps.
Further Products from our
Digital-Professional-
Series:
S-DEC-4
4-fold turnout decoder for four magnet accessories with free
programmable decoder addresses and possible separate power
supply.
SA-DEC-4
4-fold switch decoder with 4 bistable relays for switching up to
4A each. With free programmable decoder addresses.
LS-DEC
Lightsignal-Decoder for up to four LED-equipped signals.
Signal aspects will be switched as real by up- and down
dimming and will be switched directly via decoder addresses.
All components can be purchased as easy to assemble
complete kits, as finished modules or as ready finished
modules in a case.
Made in Europe by
Littfinski DatenTechnik (LDT)
Bühler electronic GmbH
Ulmenstraße 43
15370 Fredersdorf / Germany
Phone: +49 (0) 33439 / 867-0
Internet: www.ldt-infocenter.com
Subject to technical changes and errors. 05/2019 by LDT
Arnold, Märklin, Lenz, Digitrax, Roco and Zimo are registered trade marks.

This manual suits for next models

1

Other LDT Media Converter manuals

LDT LS-DEC-CFL-F User manual

LDT

LDT LS-DEC-CFL-F User manual

LDT M-DEC-DC-F User manual

LDT

LDT M-DEC-DC-F User manual

LDT LS-DEC Series User manual

LDT

LDT LS-DEC Series User manual

LDT TT-DEC-R User manual

LDT

LDT TT-DEC-R User manual

LDT Digital-Professional Series User manual

LDT

LDT Digital-Professional Series User manual

LDT SA-DEC-4-DC-G User manual

LDT

LDT SA-DEC-4-DC-G User manual

LDT QS-DEC-II-F User manual

LDT

LDT QS-DEC-II-F User manual

LDT Digital Professional Series Technical manual

LDT

LDT Digital Professional Series Technical manual

LDT LS-DEC-USA User manual

LDT

LDT LS-DEC-USA User manual

LDT S-DEC-4-DC-G User manual

LDT

LDT S-DEC-4-DC-G User manual

LDT LS-DEC-SNCF-F User manual

LDT

LDT LS-DEC-SNCF-F User manual

LDT M-DEC-DC-G User manual

LDT

LDT M-DEC-DC-G User manual

LDT SA-DEC-4-DC-G User manual

LDT

LDT SA-DEC-4-DC-G User manual

LDT TT-DEC Series User manual

LDT

LDT TT-DEC Series User manual

LDT S-DEC-4-DC-G User manual

LDT

LDT S-DEC-4-DC-G User manual

LDT LS-DEC-CSD-F User manual

LDT

LDT LS-DEC-CSD-F User manual

LDT SA-DEC-4-DC-B User manual

LDT

LDT SA-DEC-4-DC-B User manual

LDT Digital-Professional Series User manual

LDT

LDT Digital-Professional Series User manual

LDT Digital Professional Series User manual

LDT

LDT Digital Professional Series User manual

LDT LS-DEC-SNCF-F User manual

LDT

LDT LS-DEC-SNCF-F User manual

LDT SA-DEC-4 User manual

LDT

LDT SA-DEC-4 User manual

LDT Digital Professional Series User manual

LDT

LDT Digital Professional Series User manual

LDT SA-DEC-4-MM-G User manual

LDT

LDT SA-DEC-4-MM-G User manual

LDT LS-DEC-DB-F Technical manual

LDT

LDT LS-DEC-DB-F Technical manual

Popular Media Converter manuals by other brands

B&B Electronics USR604 quick start guide

B&B Electronics

B&B Electronics USR604 quick start guide

evertz 7700 Series manual

evertz

evertz 7700 Series manual

Option Audio GlobeTrotter Ex GE 0002 user manual

Option Audio

Option Audio GlobeTrotter Ex GE 0002 user manual

Hengstler RI 36 installation instructions

Hengstler

Hengstler RI 36 installation instructions

SIERRA VIDEO SYSTEMS openGear ADC-163 owner's manual

SIERRA VIDEO SYSTEMS

SIERRA VIDEO SYSTEMS openGear ADC-163 owner's manual

ARC BLE-1915 manual

ARC

ARC BLE-1915 manual

Radio Shack 15-2572T owner's manual

Radio Shack

Radio Shack 15-2572T owner's manual

GSS HDM 400 P CI Assembly instruction

GSS

GSS HDM 400 P CI Assembly instruction

Ganz ZN-S1000VE Hardware manual

Ganz

Ganz ZN-S1000VE Hardware manual

VXIS VX1828B datasheet

VXIS

VXIS VX1828B datasheet

StarTech.com HDMI2HDMI instruction manual

StarTech.com

StarTech.com HDMI2HDMI instruction manual

Cleerline 10Base-TX user manual

Cleerline

Cleerline 10Base-TX user manual

Baumer HUBNER BERLIN POG 10 R Mounting and operating instructions

Baumer

Baumer HUBNER BERLIN POG 10 R Mounting and operating instructions

VRN K08B operation instruction

VRN

VRN K08B operation instruction

Baumer Hubner Berlin CANopen PMG 10 Installation and operating instructions

Baumer

Baumer Hubner Berlin CANopen PMG 10 Installation and operating instructions

TTI TIA-3000 operating instructions

TTI

TTI TIA-3000 operating instructions

Transition Networks SBFTF1011-120 user guide

Transition Networks

Transition Networks SBFTF1011-120 user guide

TR-Electronic CEV582M-4096/4096 PB 36ZB12FL Assembly instructions

TR-Electronic

TR-Electronic CEV582M-4096/4096 PB 36ZB12FL Assembly instructions

manuals.online logo
manuals.online logoBrands
  • About & Mission
  • Contact us
  • Privacy Policy
  • Terms and Conditions

Copyright 2025 Manuals.Online. All Rights Reserved.