Littfinski DatenTechnik (LDT)
Assem
bly Instruction
Pos.
Qty.
Component
Remarks
Ref.
Done
Reverse-Loop Module
from the Digital-Professional-Series !
KSM-SG-B Part-No.: 700501
Suitable for the digital operation of all digital
The polar reversal at the reverse-loop will be performed
without short-circuit via two sensor rails.
With reason to an external power supply possibility is a
simple control of the reverse-loop with track occupancy
module (e.g. RM-GB-8(-N) and RS-8) possible. The sensor
rails will be controlled as well.
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 80 35
Introduction:
You have purchased a kit for your model railway supplied within
the assortment of Littfinski DatenTechnik (LDT).
This kits are a high quality product which is easy to assemble.
We are wishing you having a good time for assembling and
application of this product.
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 a heat 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 possibly be
swallowed from children. Children (especially under 3 years)
shall not participate on the assembly without supervision.
>> kit <<
formats
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 and zener diodes please keep special attention
to the correct polarity (marked line for the cathode).
With reason to different makes of electrolytic capacitors 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 or directly into the
pc-board (IC3) 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 IC`s to electrostatic
discharge which will cause immediate damage of the IC.
Before touching those components please discharge yourself
by contacting an earthed metal (for example an earthed
radiator) or work with an electrostatic safety pad.
Please attend to the mark "+" of the rectifiers. Some
manufacturers mark the "+" connections additionally with a
longer connection wire. If the rectifier shows as marking a
flattened side this side has to correspond with the marking on
the pc-board.
The clamps KL1 to KL4 have to be connected to a block with 8
connections.
Assembly List:
1 1 Printed circuit board
2 1 Z-Diode BZX ... 5V1 attend to the polarity! D1
3 5 Diodes 1N4003 attend to the polarity! D2, D6
4 1 Z-Diode BZX ... 30 attend to the polarity! D7
5 1 Resistor 820Ohm gray-red-black-black R1
6 2 Resistors 1,5kOhm brown-green-black-brown R2, R3
7 1 Resistor 220kOhm red-red-black-orange R4
8 1 Resistor 1MOhm brown-black-black-yellow R5
9 2 Capacitors 100nF 100nF = 104 C3, C4
10 2 IC-Sockets 18poles IC1, IC2
11 1 IC-Socket 8poles IC4
12 1 IC: 814 attend to the polarity! IC3
13 1 Resonator CR1
14 1 Electrolytic-cap. 100µF/25V attend to the polarity! C2
15 1 Electrolytic-cap. 470µF/35V attend to the polarity! C1
16 1 Rectifier attend to the polarity! GL1
17 1 Multi Fuse R050 MF1
18 3 Relay REL1..3
19 4 Clamps 2poles build blocks before assy. KL1, KL4
20 1 Clamp 2poles KL5
21 1 IC: Z86E0..PSG attend to the polarity! IC1
22 1 IC: ULN2803A attend to the polarity! IC2
23 1 IC: 93C46 attend to the polarity! IC4
Subject to technical changes and errors. 05/2013 by LDT
Final control
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
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. Use a small soldering iron with max 30 Watt heating power. The
solder tip shall be free from scale to assure an excellent heat
transfer to the area to be soldered.
4. The soldering shall be performed on a speedy way because a long
heat transfer can destroy the components. To much or to long
heating can take off the copper pads and copper tracks from the
board.
5. For a good soldering a well tinned solder-tip has to be brought in
contact to the copper-pad and the component wire at the same
time. Simultaneous a little solder-tin shall be applied for heating up.
As soon as the solder-tin starts melting the tin wire has to be taken
away. Just wait until the tin has well wetted the pad and the wire
and take the soldering iron away from the soldering area.
6. Make sure not to move the just soldered component for about 5
seconds after removing the soldering iron. This should create a
silver shining faultless soldering joint.
7. For a faultless soldering joint and well done soldering is a clean
non-oxidized soldering-tip absolutely required. It is not possible to
perform a sufficient soldering joint with a dirty soldering tip.
Therefore please clean the soldering tip from excessive solder-tin
and dirt by using a wet sponge or a silicone cleaning pad after each
soldering process.
8. After completion of the soldering all connection wires have to be
cutted off directly above the soldering joint by using a side cutter.
9. By soldering semiconductors (transistors, diodes), LED`s and IC`s
is it very important never to exceed the soldering time of 5 seconds
to prevent the destruction of the component. It is absolutely
required to attend to the correct polarity of the component before
starting the soldering process.
10. After the board assembly carefully control the pc-board about
correct insertion of the components and the correct polarity. Please
check if no connections or copper tracks are accidentally short
circuited by soldering tin. This can not only result to malfunction of
the module but also result to a destruction of expensive
components.
11. Please take into account that improper soldering joints, wrong
connections, faulty operation or wrong board assembly is not a
matter within our sphere of influence.
General installation information
The contact-wires of resistors and diodes to be assembled in a lying
position shall be bended in accordance to the raster distance into a right
angular position and assembled into the specified bores (in accordance
to the board assembly plan or the assembly markings). To prevent that
the components will not fall out by turn-over the pc-board please bend
the connection wires about 45° apart and solder them carefully to the
copper pads on the rear side of the board. Finally the excessive wires
shall be cutted off with a small side cutter.
The resistors in the supplied kits are metal-foil resistors. Those have a
tolerance of 1% and are marked with a brown “tolerance-ring”. The
tolerance ring can be identified by the larger margin distance
respectively the larger distance to the other four marking rings.
Normally there are five color rings on the metal-foil resistors. To read
the color code you have to locate the resistor that way that the brown
tolerance ring will be on the right side. The color rings will be red now
from left to right!
Please take care to assemble diodes with the correct polarity (position
of the cathode marking). Take care about a very short soldering time!
The same will apply to the transistors and the integrated circuits (IC`s).
The flat side of the transistors has to correspond with the marking on
the pc-board.
The transistor legs should never be assembled in a crossed position.
Further those components should have a distance of about 5mm to the
board. Attend to the short soldering time to prevent the damage of the
component by excessive heat.
Capacitors shall be assembled into the respective marked bores, the
wires to be bent a little apart and careful soldered to the copper pad. By
the assembly of electrolytic capacitors (electrolytic cap) it has to be
attended to the correct polarity (+,-)! Wrong-way soldered electrolytic
capacitors can explode during the application! Therefore is it very
important to check the correct polarity two- or even better three-times.
In addition it has to be attended to the correct capacitor values, e.g. n10
= 100pF (not 10nF!).
A careful and clean assembly will drastically reduce the possibility that
anything will not be in correct function. Check every step and every
soldering joint two times before carrying on! Attend closely to the
assembly list! Perform the described step not different and do not skip
any step! Mark each step as done at the foreseen column after
assembly and careful check.
Take your time. Private work is no piece-work because the time for
careful assembly work is much less than an extensive fault diagnosis.
Final assembly
Sockets and integrated circuits (IC´s) of the kits will be supplied on a
piece of foam to assure safe transport.
This foam shall never be used below or between components as this
foam is electrical conductive.
In case the kit will be taken into operation the conductive foam can
produce a short circuitry and destroy the complete kit. Anyhow the
function of the module will not be as expected.
Warranty
As we have no influence to the proper and correct assembly we have to
limit our warranty to the complete supply and the faultless quality of the
components.
We guarantee the function of the components in accordance to the
identified values within a non-assembled condition of the parts and the
compliance of the technical data of the circuit by attending to the
respective soldering instruction and the specified start of operation of
the module including connection and operation.
Further demands are not accepted.
We are not taking over any warranty nor any liability for any harm or
sequential damage connected to this product.
We reserve our right for a repair, rework, supply of replacement or
refund of the purchase price.
The following criteria will result to a non-repair respectively to a lost of
right to claim under guarantee:
• if acid-containing soldering tin or fluxes with corrosive content and
others have been used
• if the kit has been improper soldered or assembled
• by alterations or repair-trials on the device
• by own circuit amendments
• by construction of non-intended improper displacement of
components, free wiring of components etc.
• application of other non-original kit-components
• by damaging of copper tracks or soldering copper pads on the
board
• by wrong assembly and the sub sequential damages
• overloading the module
• by damages caused by intervention of foreign persons
• by damages caused by disregarding the operation manual
respectively the connection plan
• by connecting a wrong voltage respectively a wrong current
• by wrong polarity connection of the module
• by wrong operation or damages caused by negligent usage or
abuse
• by defects caused by bridged or wrong fuses.
All such cases will result to a return of the kit to your expenses.
Subject to technical changes and errors. 05/2013 by LDT
Littfinski DatenTechnik (LDT)
Opera
tion Instruction
Reverse-Loop Module
from the Digital-Professional-Series !
KSM-SG-F LDT-Part-No.: 700502
>> finished module <<
Suitable for the digital operation of all digital
The polar reversal at the reverse-loop will be
performed without short-circuit via two sensor rails.
With reason to an external power supply possibility
is a simple control of the reverse-loop with track
occupancy module (e.g. RM-GB-8(-N) and RS-8)
possible. The sensor rails will be controlled as well.
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 or injuring due to sharp edges and tips! Please store this
instruction carefully.
CE Part-No.:
24 80 36
Multi-Digital
formats
Introduction/Safety instruction:
You have purchased the reverse-loop module KSM-SG for
your model railway layout.
The KSM-SG module is a high quality product that is supplied
within the Digital-Professional-Series of Littfinski
DatenTechnik (LDT).
We are wishing you having a good time using this product.
• 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.
The KSM-SG comes as finished module and as finished
module in a case with 24 month warranty.
Connecting the reverse-loop module to your
digital model railway layout:
• Attention: Before starting the installation switch off the
drive voltage by pushing the stop button or disconnect
the main supply.
The reverse-loop module receives the power supply via the
clamp KL5. The voltage of 16...18V~ of a model railway
transformer (ac output) is acceptable.
Operation mode:
The reversal polarity of the reverse-loop will be performed
without short circuit due to 2 sensor-tracks which are
located at the entrance and at the exit of the reverse-loop.
Both rails of the sensor tracks (A1/B1 and A2/B2) and the
reverse loop (AK/BK) will be completely isolated and
connected to the respective marked clamps at the reverseloop module KSM-SG.
The sample connection 1 at the rear side of this instruction
shows the complete wiring.
The optimal length of the sensor rails will be 5 to 20 cm. The
reverse-loop rail gets the supply via the clamps AK and BK.
The reverse-loop rail has to have at minimum the length of
the longest train of the layout.
The reverse-loop KSM-SG can switch up to 8 Ampere digital
current.
The input A and B of the reverse-loop module KSM-SG will
receive the digital current from the command station or from a
booster from the ring-conductor “driving”. It is important that the
reverse-loop will be complete inside one booster area and
not between two rail sections which get the supply from two
different boosters.
Because the KSM-SG itself requires no digital current and
receives the energy from a model railway transformer is a
simple wiring for the control of the reverse-loop in
combination with track occupancy sensors possible.
The sample connections 2 at the rear side of this instruction
shows the reverse-loop control via the feedback module RM GB-8(-N) with integrated track occupancy report.
The reverse-loop module KSM-SG inputs A and B receive
digital current from one of the 8 outputs of the RM-GB-8(-N).
On this process will be every current consumer within the
reverse-loop recognized and produces an occupancy report.
The sensor tracks will be controlled as well.
Further information related to the control of reverse-loops
can be found at the Internet on our Web-Site (www.ldtinfocenter.com) within the section “Downloads”. Please
download the file “Reversing loop monitoring” onto your PC.
At the section “Sample Connections” on our Web-Site are
additionally samples for the reversal polarity with the reverse-
loop module KSM-SG for further track layouts available.
Accessories:
For safe installation of the reverse-loop modules below your
model layout we offer an installation set under the order code
MON-SET and for the assembled kits a sturdy exact matching
case (order code: LDT-01).
Sample Connection 1: Automatic polarity of a standard reverse-loop with the reverse-loop module KSM-SG.
Littfinski DatenTechnik (LDT)
Reverse loop module
Kehrschleifenmodul
Digital-Profi werden!
Kehrschleifenmodul
KSM-SG
Kurzschlussfreie Umpolung über Sensorgleise.
Vom Modellbahntrafo
From transformer
Short free reversion through sensor tracks.
~ ~
16...18V
KSM-SG
KL5
Rev. 1.1
Multi-Digital
L
ittfinski DatenTechnik (
D-25492 Heist
www.ldt-infocenter.com
A1 B1
A2 B2
B1
AKA2
B2
AK BKINA B
Loop
Sensor 1 Sensor 2
A1
BK
LDT
)
KL1KL2KL3KL4
A
B
B1
Ç
Ç
Ç
BK
Ç
A2
B2
AK
Ç
A1
Ç
Ç
Ç
Von Digitalzentrale
oder Booster
Ringleitung "Fahren"
From command station
or booster
Ring conductor "driving"
Sample Connection 2: Reverse-loop polarity via the reverse-loop module KSM -SG plus track occupancy report at the reverse-
loop with the RM-GB-8-N. Sensor tracks will be monitored as well.
Littfinski DatenTechnik (LDT)
Reverse loop module
Kehrschleifenmodul
Digital-Profi werden!
Kehrschleifenmodul
KSM-SG
Kurzschlussfreie Umpolung über Sensorgleise.
Vom Modellbahntrafo
From transformer
Direkteinspeisung
ohne Rückmeldung.
Direct supply
without feedback.
Vom Modellbahntrafo
From transformer
braun
brown
gelb
yellow
braun
brown
braun
brown
rot
red
rot
red
Short free reversion through sensor tracks.
KL5
~ ~
16...18V
Ç Ç Ç
Überwachtes
"Normalgleis"
monitored
"standard track"
Intellibox
L
ittfinski DatenTechnik (
Multi-Digital
KSM-SG
Rev. 1.1
A1 B1
Sensor 1 Sensor 2
A1
12345678
IN1IN2
Digital-Profi werden!
Rückmeldemodul / Feedback module
RM-GB-8-N
8-fach Rückmeldemodul mit integrierten
Gleisbelegtmeldern für den s88-Rückmeldebus.
8-fold feedback module with occupancy
detectors for the s88-feedback bus.
s88-N
BU1 BU2
s88-N
OUT
OUT IN
Bestellbezeichnung/
Order code:
Kabel s88 xm
LDT
D-25492 Heist
www.ldt-infocenter.com
A2 B2
AK BKINA B
Loop
A
AKA2
BK
B2
B1
L
ittfinski DatenTechnik (
www.ldt-infocenter.com
ST2ST1
IN
weiss
white
)
KL1KL2KL3KL4
B
s88-N
LDT
D-25492 Heist
8-fach Rückmeldemodul
mit Gleisbesetztmeldern
8-fold feedback module
with occupancy detectors
RM-GB-8-N
Rev. 1.1
B1
BK
Ç
AK
Ç
)
Ç
A1
Ç
A2
Ç
Ç
Ç
B2
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. 03/2015 by LDT
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