LDT Digital Professional Series User manual

L ittfinski D aten T echnik ( LDT )
Operating Instruction
Multi-Digital
Master-Module for Decoder
for Switchboard Lights
from the Digital-Professional-Series !
GBS-Master-MM-F Part-No.: 050322
>> finished module <<
Suitable for the data format Märklin-Motorola
The GBS-Master-Module together with the Display-
Module GBS-Display will build the Decoder for
Switchboard Lights GBS-DEC. Up to 4 Display
Modules can be connected onto each Master-Module.
Each Display-Module GBS-Display can control
⇒ 16 turnout symbols, up to 32 track-occupancy
symbols or different 2- to 4-aspects DB-light
signal symbols.
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.
Data format:
Märklin-Motorola
Red Point
Introduction/Safety instruction:
You have purchased the Master-Module GBS-Master as a kit
or as a finished module for the Decoder for Switchboard Lights
GBS-DEC.
The Master-Module GBS-Master 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.
Our components of the Digital-Professional-Series can be
easily and without any problems operated on your digital model
railway.
The Master-Modules GBS-Master-MM is suitable for the
Märklin-Motorola data format.
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 not be liable for any consequential
damages caused by improper use or installation.
Connecting GBS-Modules:
•Attention: Before starting the installation switch off the
drive voltage bypushing the stop button or disconnect the
main supply.
At first connect the Master-Module GBS-Master to a Display-
Module GBS-Display via the 10-poles pin-plug-bar BU1. For
setting the addresses and operating modes connect the
Master-Module GBS-Master additionally to a Service-Module
GBS-Service via the 15-poles pin-plug-bar BU2.
Avoid any offset of the pin-plug-bar of the Display- and the
Service-Module to the pin-socket-bar of the Master-Module. For
this issue please attend to the operating instructions of the
Display- and Service-Module. The picture 1 at the rear side of
the Service-Module operating instruction shows the correct
connection of the Display-, Master- and Service Module.
Up to 4 Display-Modules GBS-Display can be connected to
each Master-Module GBS-Master. For this layout has the
second Display-Module to be connected to the first Display-
Module via the 10-poles pin-plug-bar. Corresponding has the
third module to be connected to the second and the fourth to
the third module.
Connecting the decoder to the digital layout:
By using the Master-Module GBS-Master-MM the Decoder for
Switchboard Lights GBS-DEC is suitable for the data format
Märklin-Motorola.
The Master-Module receives the digital information via the
connection clamp KL1. Supply the Master-Module with this
information via a connection-rail or even better directly from the
control unit or from a booster (separate digital-ring-supply for
all decoders) for an interference-free transmittance of data.
Attend to the mark at the clamp KL1. The colors "red" and
"brown" next to the clamp is common on Märklin-Motorola
layouts.
The Master-Module GBS-Master receives the voltage supply
always from the first Display-Module. More information to this
issue can be found within the operating instruction of the
Display-Module GBS-Display at the paragraph voltage supply
to the Display-Module.
Also details for the connection of the switchboard lights
symbols (light emitting diodes and incandescent lamps) to the
Decoder for Switchboard Lights GBS-DEC can be found
within the operating instruction of the Display-Module.
Colored sample connections can be found on our Web-Site
www.ldt-infocenter.com at the section “Sample Connection”.
Setting address- and operation modes:
1.1 Putting into operation:
If the Decoder for Switchboard Lights will be connected to the
power supply firstly all connected light diodes and incandescent
lamps will lighten for 2 seconds at a brightness of 50% (lamp
test). The display of the service module indicates GBS-DEC
MOT Vx.y. If the information at the display of the service module
is not clearly readable during the first start of operation please
turn carefully the trim-pot R1 a half turn to the left and to the
right by using a small screw driver until the information at the
display is optimal readable.

1.2 Setting the number of connected Display-Modules:
On top of the Service-Module are 4 keys located which will be
identified within the following description as >left<, >right<,
>above< und >below<.
At first push the key >right<. The display shows Anzahl DIS: 1
(quantity of Display-Modules).
If the start information remains to be at the display after pushing
the key >right< there will be no Märklin-Motorola commands
transmitted from the digital central unit or the digital information
to clamp KL1 at the Master-Module is wrong connected. Check
the correct connection of the digital information (red and brown)
and call a loc with Märklin-Motorola-Locdecoder via the digital
central unit. Actual traveling of the loc is not required. For setting
the address- and operation mode it is sufficient if Märklin-
Motorola commands will be continuously transmitted.
If you depress the key >right< during switching-on the Decoder
for Switchboard Lights you will get in any case into the address
and operation mode. Do not release the key before you can read
the message GBS-DEC MOT Vx.y at the display of the service
module.
Push now the key >above< as many times until the display
indicates the amount of connected display-modules. It is possible
to operate at a maximum 4 Display-Modules on one Master-
Module.
1.3 Setting the address for a Display-Module:
If the display of the service-modules shows Anzahl DIS: x (with
"x" for the quantity of connected Display-Modules) please push
the key >right< for getting to the address setting of the first
Display-Module. The display shows now the current address of
the first Display-Module as DIS1 ADR:016-001.
At this moment is the address section from 1 to 16 adjusted for
the first Display-Module. Each Display-Module receives 16
coherent addresses. To each address are two outputs
assigned. One output for turnout round and one output for
turnout straight.
The picture 3 at the rear side of the Display-Module Operating
Instruction shows the cohesion.
By pushing the keys >above< and >below< you can now select
one of 20 address sections with 16 coherent addresses each
for the Display-Module. The highest address within the Märklin-
Motorola data format is 320. The display of the Service-Module
shows in this case the text DIS1 ADR:320-305 for the address
section 305 till 320.
1.4 Setting the operation mode of single outputs:
After setting the required address-section for the Display-Module
(for example the display shows DIS1 ADR:032-017 for the
address section 17 to 32) push again the key >right< for setting
the operation mode of the single outputs. The display shows e.g.
DIS1 K08-01:****.
DIS1 identifies the Display-Module No. 1 which has been
connected directly to the Master-Module.
K08-01 stays for clamp KL1 with outputs 1 to 8.
**** stays for 8 normal switched outputs which can control
turnout symbols or 2-aspect DB-Block- or DB-Line-Close
signal symbols.
With the keys >above< and >below< you can choose now one
of three operation modes.
Additionally to the described operation mode **** for 8 normal
switched outputs there are the operation modes Vo** and VoHE
available.
Vo** stays for the possibility to control one 3-aspect DB-
Advance- and one 2-aspect DB-Block-signal symbol. Picture
5at the rear side of the operating instruction for the Display-
Module shows the wiring of the signals at the clamp KL1.
VoHE stays for the possibility to control one 3-aspect DB-
Advance- and one 3-aspect Entry- or a 4-aspect Main-signal
symbol. Picture 6 at the rear side of the operating instruction for
the Display-Module shows the wiring of one Advance- and one
Main-signal at the clamp KL1.
By connecting a 4-aspect DB-Exit-signal symbol to clamp KL1
the wires of the white LED`s or lamps have to be connected to
output 33 of the clamp KL5 of the Display-Module.
Shall a Main-signal operate on clamp KL2 will it be the output
34. With a Main-signal symbol at the clamp KL3 is it the output
35 and at the clamp KL4 is it output 36.
Further colored sample connections can be found on our Web-
Site www.ldt-infocenter.com at the section “Sample
Connection”.
The function of the control of the signal symbols on the
switchboard panel via decoder addresses will be analogue to
the control of signals via the Light Signal-Decoder LS-DEC-DB.
The following draft clarifies the connection of decoder address
and signal aspect. There will be an exit signal controlled via
address 1 and 2 and an advance signal via address 3 and 4.
GN
RT1
WS
RT2
WS
GE
GE1
GE2
GN1
GN2
Exit Signal Advance Signal
Hp00 Sh1 Vr0
train stop shunting drive train stop
red red red red
1 2 3 4
green green green green
proceed slow proceed proceed slow proceed
Hp1 Hp2 Vr1 Vr2
If you selected the correct operation mode for the first clamp bar
(KL1 with outputs 1 to 8) please push the key >right< for
adjusting the operation mode at the clamp bar KL2 (outputs 9 to
16) with the keys >above< or >below<.
With the key >right< you can go to the operation mode
adjustment for clamp bar KL3 and KL4.
Did you register further Display-Modules under 1.2 activate again
the key >right< for setting the operation mode adjustments of the
second Display-Module. The display of the Service-Module
shows the text DIS2 K08-01:****.
Have you completed the setting of the operation mode on all
outputs of all available Display-Modules please push the key
>left< repeatedly until the Decoder for Switchboard Lights
performs a lamp test again. The display of the Service-Module
shows now GBS-DEC MOT Vx.y. It is now ready for switching
the connected switchboard panel symbols. If you require to
change the operation mode adjustment please start again as
described under 1.2 . If you require an alteration at a particular
setting only you can stop the adjustment from any step by a
multiple pushing of the key >left< until the lamp test starts.
During the normal switching operation it is not required to
connect the Service-Module.
Accessories:
For the assembly of the pc-boards of the GBS-DEC inside your
switchboard panel we offer assembly material under the order
code MON-SET. The set consists of 4 plastic distance spacer
and 4 matching wood-screws.
Made in Europe by
Littfinski DatenTechnik (LDT)
Bühler electronic GmbH
Ulmenstraße 43
15370 Fredersdorf / Germany
Phone: [phone] / 867-0
Internet: www.ldt-infocenter.com
Subject to technical changes and errors. 06/2019 by LDT
Märklin and Motorola are registered trade marks.