LDT LS-DEC-DB-F Technical manual

Littfinski DatenTechnik (LDT)
Operation
Instruction
Light signal decoder
for light-signals with LED
from the Digital-Professional-Series !
LS-DEC-DB-F Part-No.: 512012
>> finished module <<
Suitable for the digital systems:
Märklin-Motorola and DCC
For digital control of:
⇒up to four 2-or 3-aspect signals
⇒up to two 7-aspect signals (home-and advance signal on one
signal post)
⇒for LED light signals with common anodes or common
cathodes
Realistic operation of the signal aspects by implemented
dimming function and dark phase between the switching of
the signal aspects.
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.
24 00 12
yellow point
Introduction/Safety instruction:
You have purchased the Light signal decoder LS-DEC-DB for your
model railway as a kit or as finished module.
The LS-DEC is a high quality product that is supplied within the Digital-
Professional-Series of Littfinski DatenTechnik (LDT).
We wish you having a good time using this product.
The light signal decoder LS-DEC of the Digital-Professional-Series
can be easily operated on your digital model railway.
By using a connector plug bridge you can choose if you want to
connect the decoder to a Märklin-Motorola system or to a digital
system with DCC standard.
The finished module comes with a 2 years limited warranty.
•Please read the following instructions carefully. Warranty will 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.
Connecting the decoder to your digital model railway
layout:
•Attention: Before starting the installation-work switch off the
layout voltage supply (switch-off the transformers or disconnect
the main supply).
The Light signal decoder LS-DEC is suitable for the DCC data format
as used e.g. by Lenz-Digital Plus, Roco-Digital (switching via
Keyboard or multiMAUS only; switching via Lokmaus 2® and R3® is
not possible), Zimo, LGB-Digital, Intellibox, TWIN-CENTER, ECoS,
EasyControl, KeyCom-DC and Arnold-Digital / Märklin-Digital=
whenever no connector plug bridge is inserted in position J2.
The decoder is suitable for Märklin-Digital~ / Märklin Systems or
Märklin-Motorola (e.g. Control-Unit, Central Station, Intellibox,
ECoS, EasyControl, KeyCom-MM) if you insert a connector plug
bridge on J2.
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 a booster assuring the supply of digital
information free from any interference.
Please attend to the marking on clamp KL2. The colors 'red' and
'brown' next to the clamp are usually used by Märklin-Motorola
systems (e.g. Märklin-Digital~ / Märklin Systems / Intellibox).
D3 C3
C7
R1
4N25
IC3
R13
J1
CR1
24C01
IC2
L1
C5 C4
Z86E3016
C6
R2 R6
R4
R3
R8
R7
R12
R9
R11
R10
J2
S1
D2
KL6
LM2574
IC4
D1
KL5 KL3KL7
KL8KL9KL10
KL2
KL4
KL1
AK DCCMM
A B Rev. 3.2
Littfinski DatenTechnik (LDT)
br. rot
LS-DEC
Lichtsignal-Decoder
ws ge gn
rt2 rt1 gn2 gn1 ge2 ge1
+
5V
-
ws ge gn
rt2 rt1 gn2 gn1 ge2 ge1
+
5V
-
14..18V~
J
K
BR1
Lenz-Digital systemsare using the letters 'J'and 'K'.
In case you assemble the decoder to an Arnold-Digital (old)-or
Märklin-Digital= system, you have to connect 'black' to 'K' and 'red' to
'J'.
The decoder receives the power supply via the two poles clamp KL1.
The voltage shall be in a range of 14..18V~ (alternate voltage output of
a model rail road transformer).
If you do not want to supply voltage separately from a transformer to
the LS-DEC decoder you can shorten the clamp KL1 and KL2 with
two wires. In this case the decoder will get the power supply
completely from the digital network.
Connecting the signals:
General:
Up to 4 signals can be connected to the Light signal decoder LS-
DEC.Two signals per each 11poles clamp block. The build up of the
two clamps is identical. The following description refers mainly to one
clamp only. As you can see on the identical marking the description is
also valid for the second clamp.
Common connection:
All LED-signals of any manufacturer are designed in accordance to the
same principle. One wire of all light emitting diodes of a signal will be
generally connected to a common cable. Depending if all anodes or all
cathodes are connected together the signals will be called as common
anodes-respectively common cathodes-signal.
If you use signals with common anodes you have to clamp this cable
to the connection marked '+'. In addition you shall not insert the
connection plug bridge in J1 in this case.
If you use signals with common cathodes you have to clamp this cable
to the connection marked '-'. In addition you shall insert the
connection plug bridge in J1 in this case.
The second connection of each light diode is separated and mostly
color marked at the end and contains a series resistor.
Series resistor:
Light diodes have always to be operated with a suitable series
resistor to prevent that they will be destroyed. For this prevention all
outputs have already a series resistor of 330 Ohm integrated on the
printed circuit board of the light signal decoder LS-DEC. Is there no
further external resistor the diode-current will be about 10mA.
This provides sufficient brightness. In case your light diodes are to
bright you can correct the brightness by assembling external resistors
of some 100 Ohms to your personal requirement.
For assigning the single cables of the light diodes to the correct
clamp connection please attend to the below signal images. The
marks next to signal light diodes are not corresponding to the actual
light color but to the marking of the connection at the light signal
decoder LS-DEC.

1. Exit signal and advance signal:
GN
RT1
WS
RT2
WS
GE
GE1
GE2
GN1
GN2
exit signal advance signal
Hp00 Sh1 Vr0
train stop
proceed
shunting train stop dark switch
red red red red
1234
green green green green
proceed slow approach proceed slow approach
Hp1 Hp2 Vr1 Vr2
2. Station-entry or block signal and advance signal:
GE1
GE2
GN1
GN2
GNRT1
GN
GERT1
station entry- or block signal advance signal
Hp0 Vr0
train stop train stop dark switch
red red red red
1234
green green green green
proceed slow approach proceed slow approach
Hp1 Hp2 Vr1 Vr2
3. Line close signal and line close or block signal:
GN1
GE1
RT1 GN RT1
GN
GE1 GN1GE1
GN1
line close signal
Sh0 Hp0
stop shunting train stop
red red red red
1 2 3 4
green green green green
proceed shunting proceed
Sh1 Hp1
line close- or block signal
If you do not know the correct allocation of the single wires to the light
emitting diodes you can test the function by connecting the wires to
clamp RT1 or RT2. These outputs are active because the decoder
switches all signals to red after switching on.
Further sample connections are available at the internet on our Web-
Site (www.ldt-infocenter.com) under "Downloads". Please load the file
"LSDEC-DB_INFO_engl" onto your PC.
Programming the decoder address:
•Switch on the power supply of your model rail way.
•Activate the programming key S1. Do not touch the integrated
circuits of the pc-board because any electrostatic discharge can
destroy the IC`s.
•At least two light emitting diodes on a signal connected to the
left clamp block will be automatically switched over every 1,5
seconds in a flashing mode. This indicates that the decoder is in
the programming mode.
•Press now one key of the key-group to be assigned to the left
clamp block of 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 also
to be used for the signal-aspects are combined into groups of
four. The address 1 to 4 build the first group. The address 5 to 8
build the second group etc. Each clamp block of a LS-DEC decoder
can be assigned to any of these groups. It does not matter which of
the eight possible keys used for programming will be activated. The
decoder stores always the complete group of keys.
•If the decoder has recognized the assignment correctly the
connected light emitting diode will flash a little faster. Afterwards
the flashing 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 (clamp2) are wrong
connected. For testing this, switch off the power supply, exchange
the connection on KL2 and start addressing again.
•Press now the programming key S1 again. At least two light
emitting diodes connected to the right clamp block will flash now.
Repeat the programming as described above.
•Now press the programming key S1 a third time for leaving the
programming mode. All signals will be automatically switched to
STOP.
Signal switching:
Below the drafts of the above signal aspects you can find a respective
key-group for the addresses 1 to 4 and the corresponding keys 'red'
and 'green'.Additionally is the meaning of the signal position indicated
above or below. The addresses 1 to 4 are indicated as a sample only.
The actual addresses are corresponding to the assignment you choose
during programming. Have you connected an advance-and an exit-
signal as per first sample to one of the clamps you can switch the exit-
signal to proceed (Hp1) with the address 1 and the key green.
The light emitting diode marked with GN will now indicate this at the
signal.
Dark switching:
In case an advance-and an exit-signal are on one common signal
post the advance-signal has to remain dark if the exit-signal
indicates STOP (Hp00) or proceed shunting (Sh1).
To activate the dark-switching-mode switch the home signal to Hp00
or Sh1. If you press now the key 4 'red'you can switch the advance-
signal-aspect to 'on'respectively to 'off'with each keystroke. If the
advance-signal is in 'off'position the dark-switching mode is activated.
The light signal decoder stores this mode permanently as well as
the programmed addresses. All programmed modes can be changed
at any time.
Advance signal commands received during the signal is switched to
dark will be indicated when the exit signal will be switched to Hp1 or
Hp2.
Accessory:
For easy assembly of the printed circuit board below your model rail
road base plate we offer a set of assembly material under the order
identification: MON-SET. Under LDT-01 you can purchase a low price
durable case for the LS-DEC.
Attention:
The Light signal decoder LS-DEC switches the signal aspect not just
on and off but is dimming the light emitting diodes realistic up and
down. Even between the signal aspects a short off-phase is provided.
Further digital commands received during this switch-over-time of about
0,4 seconds will not be taken up from the decoder. Please take care
that the switching-commands are not in a to fast sequence. The
impression is absolutely realistic if the switching is considerable slow.
Made in Europe by
Littfinski DatenTechnik (LDT)
Kleiner Ring 9
D-25492 Heist/Germany
Phone: [phone] / 977 381 Fax: [phone] / 977 382
Internet: http://www.ldt-infocenter.com
Subject to technical changes and errors. 08/2006 by LDT
Märklin and Motorola are registered trade marks.