LDT 050032 is a display module for a decoder that controls switchboard lights and can be used to enhance model railway layouts. It connects to a master module and up to three additional display modules, allowing for control of up to 160 outputs and 640 light signals. The module supports various types of lights, including incandescent lamps and LEDs, and provides adjustable voltage to accommodate different lighting requirements. It also features common plus pole inputs for even distribution of power.
LDT 050032 is a display module for a decoder that controls switchboard lights and can be used to enhance model railway layouts. It connects to a master module and up to three additional display modules, allowing for control of up to 160 outputs and 640 light signals. The module supports various types of lights, including incandescent lamps and LEDs, and provides adjustable voltage to accommodate different lighting requirements. It also features common plus pole inputs for even distribution of power.
L
ittfinski
D
aten
T
echnik (
LDT
)
Operating Instruction
Display-Module for Decoder
for Switchboard Lights
from the Digital-Professional-Series !
GBS-Display-F
Part-No.:
050032
>> finished module <<
The GBS-Display-Module together with the Master-
Module GBS-Master will build the Decoder for
Switchboard Lights GBS-DEC. Up to 4 Display
Modules can be connected onto each Decoder for
Switchboard Lights GBS.
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.
Introduction/Safety instruction:
You have purchased the Display-Module GBS-Display for the
Decoder for Switchboard Lights GBS-DEC.
The Display-Module GBS-Display 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.
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.
• Also, note that electronic semiconductors are very sensitive to
electrostatic discharges and can be destroyed by them.
Therefore, discharge yourself before touching the modules on
a grounded metal surface (e.g. heater, water pipe or protective
earth connection) or work on a grounded electrostatic
protection mat or with a wrist strap for electrostatic protection.
• We designed our devices for indoor use only.
Connecting GBS-Display Modules to the
Master Module GBS-Master:
• Attention: Before starting the installation switch off the
drive voltage by pushing the stop button or disconnect the
main supply.
Connect the Display-Module GBS-Display to a Master-Module
GBS-Master via the 10-poles pin-plug-bar or to an already
connected Display-Module.
Avoid any offset of the pin contacts to the pin socket
contacts. The modules are correct connected if the pc-board
will be flush at top and bottom.
A Decoder for Switchboard Lights GBS-DEC consists of one
Master-Module GBS-Master and up to 4 Display-Modules.
Voltage supply to the Display-Modules:
Each Display-Module receives the voltage from a model-
railway transformer via the clamp KL6. The voltage is
acceptable between 10 and 18 Volt AC. If you use light emitting
diodes on your Layout Commander Panel you can use one
52VA transformer for the supply to all 4 Display-Modules of
one Decoder for Switchboard Lights GBS-DEC. If you use
incandescent lamps at the switchboard panel you can supply
with one 52VA transformer about two Display-Modules.
Please attend to the equal polarity (marked braun (brown) and
gelb (yellow)) at the clamp KL6 of the connected modules.
Connecting switchboard panel symbols:
Each Display-Module contains 40 outputs. Model railway
incandescent lamps can be connected directly. Light emitting
diodes require absolutely a series resistor (about 4,7kOhm).
The DC-voltage at the 40 outputs will be about 1.4 times the
input voltage. If an AC-voltage (on KL6) will be e.g. 15 Volt, the
DC-voltage at the outputs will be about 21 Volt.
The common plus pole for all outputs is the clamp KL7 (picture
1 at the rear side).
Each output can cover a maximum load of 0.5 Ampere. For
snapping-in a connection cable on one of the 40 outputs pull
carefully down the white lever and insert the cable from the top
into the clamp. The common plus pole (clamp KL7) has three
inputs which can cover a load of 1 Ampere each.
Distribute the common plus wires of the lamps and light-diodes
evenly via the three plus clamps KL7 (picture 2 at the rear
side).
Setting address- and operation mode:
The Decoder for Switchboard Lights receives digital addresses
as any other decoder. If the command station sends e.g. a
turnout shifting command, this command will be received from
the Turnout-Decoder (e.g. S-DEC-4) and will shift the turnout. At
the same time the Decoder for Switchboard Lights will receive
this command and will switch over the corresponding turnout
symbol at the switchboard panel.
Each Display-Module receives 16 coherent addresses
(picture 3). Each address contains two outputs (by turnouts for
round and straight) at the Display-Module. Therefore is it possible
to control e.g. 16 turnout symbols (picture 4). Further
information for address setting can be found within the
operating instruction for the Master-Module GBS-Master.
It is possible to control with the GBS-DEC beside turnout
symbols also track occupancy symbols and 2- to 4-aspect
DB-signal symbols at the switchboard panel. 2-aspect DB-
signals (block- or track-close signals) will be connected as same
as turnout symbols.
Picture 5 at the rear side of this instruction shows how a DB-
block signal and a 3-aspect DB advance signal can be
connected. Picture 6 shows the wiring of a 4-aspect DB-main-
and a 3-aspect DB-advance signal. The control via decoder
addresses will be analogue to the control of signals via the Light-
Signal-Decoder LS-DEC-DB. Further information concerning
the signal-symbol control can be found within the operating
instruction for the Master-Module GBS-Master.
IN
OUT
Picture 1
: Incandescent lamps
can be connected directly. For
light emitting diodes is it absolutely required to assemble a series
resistor (about 4,7kOhm, related to the input voltage at KL6).
Picture 2:
Each of the 40 outputs can cover a maximum load of
0.5 Ampere. Each input of the three plus-clamps (KL7) can be
loaded with a maximum of 1 Ampere.
GBS-Master
Rev. 1.3
BU1
BU2
K
br.
J
KL1
rt
Littfinski DatenTechnik (LDT)
ST2 ST1
OUTIN
s88s88
braun
brown
Von Steuereinheit
oder Booster
From command station
or booster
Leuchtdiode
light-emitting diode
Vorwiderstand
series resistor
Modellbahn-
lämpchen
model incandescent
lamp
rot
red
J K
braun
brown
gelb
yellow
Vom Modellbahntrafo
From transformer
white
weiss
white
weiss
KL4 KL3 KL2 KL1
KL7
BU1 ST1
4
5
6
7
8
26
27
28
29
30
31
32
25
9
10
11
12
13
14
15
16
18
19
20
21
22
23
24
17
1
2
3
GBS-Display / Light-Display
Rev. 1.8
Littfinski DatenTechnik (LDT)
KL5
braun
gelb
10...18V~
12...24V=
KL6 BU2
39
38
37
36
35
34
33
40
BU3
OUT
IN
GBS-Master
Rev. 1.3
BU1
BU2
K
br.
J
KL1
rt
Littfinski DatenTechnik (LDT)
ST2 ST1
OUTIN
s88s88
J K
braun
brown
Von Steuereinheit
oder Booster
From command station
or booster
rot
red
max. 1 Ampere
max. 0,5 Ampere
braun
brown
gelb
yellow
Vom Modellbahntrafo
From transformer
white
weiss
white
weiss
KL4 KL3 KL2 KL1
KL7
BU1 ST1
4
5
6
7
8
26
27
28
29
30
31
32
25
9
10
11
12
13
14
15
16
18
19
20
21
22
23
24
17
1
2
3
GBS-Display / Light-Display
Rev. 1.8
Littfinski DatenTechnik (LDT)
KL5
braun
gelb
10...18V~
12...24V=
KL6 BU2
39
38
37
36
35
34
33
40
BU3
OUT
IN
Picture 3: Each Display-Module receives 16 coherent addresses.
To each address are two outputs assigned (LED or lamps for
turnout round and straight).
Picture 4: At the outputs 1 to 32 can be 16 turnouts symbols
connected. At the below sample there will be the LED´s or lamps
switched via the address 1 to 16.
G
241
225
209
193
177
161
145
129
113
97
81
65
49
33
17
1
242
226
210
194
178
162
146
130
114
98
82
66
50
34
18
2
243
227
211
195
179
163
147
131
115
99
83
67
51
35
19
3
244
228
212
196
180
164
148
132
116
100
84
68
52
36
20
4
245
229
213
197
181
165
149
133
117
101
85
69
53
37
21
5
246
230
214
198
182
166
150
134
118
102
86
70
54
38
22
6
247
231
215
199
183
167
151
135
119
103
87
71
55
39
23
7
248
232
216
200
184
168
152
136
120
104
88
72
56
40
24
8
249
233
217
201
185
169
153
137
121
105
89
73
57
41
25
9
250
234
218
202
186
170
154
138
122
106
90
74
58
42
26
10
251
235
219
203
187
171
155
139
123
107
91
75
59
43
27
11
252
236
220
204
188
172
156
140
124
108
92
76
60
44
28
12
253
237
221
205
189
173
157
141
125
109
93
77
61
45
29
13
254
238
222
206
190
174
158
142
126
110
94
78
62
46
30
14
255
239
223
207
191
175
159
143
127
111
95
79
63
47
31
15
256
240
224
208
192
176
160
144
128
112
96
80
64
48
32
16
RGRGRGRGRGRGRGRGRGRGRGRGRGRGRGR
Dis1 Adr:256-241
Dis1 Adr:240-225
Dis1 Adr:224-209
Dis1 Adr:208-193
Dis1 Adr:192-177
Dis1 Adr:176-161
Dis1 Adr:160-145
Dis1 Adr:144-129
Dis1 Adr:128-113
Dis1 Adr:112-097
Dis1 Adr:096-081
Dis1 Adr:080-065
Dis1 Adr:064-049
Dis1 Adr:048-033
Dis1 Adr:032-017
Dis1 Adr:016-001
1
2
3
4
5
6
7
8
26
27
28
29
30
31
32
25
9
10
11
12
13
14
15
16
18
19
20
21
22
23
24
17
KL4 KL3 KL2 KL1
GBS-Display / Light-Display
Rev. 1.8
Littfinski DatenTechnik (LDT)
white
weiss
white
weiss
KL4 KL3 KL2 KL1
KL7
BU1 ST1
4
5
6
7
8
26
27
28
29
30
31
32
25
9
10
11
12
13
14
15
16
18
19
20
21
22
23
24
17
1
2
3
GBS-Display / Light-Display
Rev. 1.8
Littfinski DatenTechnik (LDT)
KL5
braun
gelb
10...18V~
12...24V=
KL6 BU2
39
38
37
36
35
34
33
40
BU3
OUT
IN
braun
brown
gelb
yellow
Vom Modellbahntrafo
From transformer
Einstellungen:
Adjustment:
Adr: 16
. . .
1
Dis1 Adr:016-001
Dis1 K08-01:
****
Dis1 K16-09:
****
Dis1 K24-17:
****
Dis1 K32-25:
****
Picture 5: The outputs of the clamp KL1 will control a DB-block-
and a DB-advance signal symbol. As indicated at KL1 the same
applies for KL2 to KL4.
Picture 6: By connecting a 4-aspect DB-exit signal symbol all
wires of the white LED`s or lamps shall be connected with output
33 (Signal to KL2 = 34 etc.).
white
weiss
white
weiss
KL4 KL3 KL2 KL1
KL7
BU1 ST1
4
5
6
7
8
26
27
28
29
30
31
32
25
9
10
11
12
13
14
15
16
18
19
20
21
22
23
24
17
1
2
3
GBS-Display / Light-Display
Rev. 1.8
Littfinski DatenTechnik (LDT)
KL5
braun
gelb
10...18V~
12...24V=
KL6 BU2
39
38
37
36
35
34
33
40
BU3
OUT
IN
braun
brown
gelb
yellow
Vom Modellbahntrafo
From transformer
Einstellungen:
Adjustment:
Dis1 Adr:016-001
Dis1 K08-01:Vo
**
GN2
GE2
GN1
GE1
GN
RT1
Blocksignal
block signal
Zughalt
train stop
Rot / red
Grün / green
1
Fahrt
proceed
Hp1
Hp0
Rot / red
Grün / green
2
Vorsignal
advance signal
Zughalt
train stop
Rot / red
Grün / green
3
Fahrt
proceed
Vr1
Vr0
Rot / red
Grün / green
4
Langsamfahrt
slow approach
Vr2
GN
RT1
GE1
GE2
GN1
GN2
white
weiss
white
weiss
KL4 KL3 KL2 KL1
KL7
BU1 ST1
4
5
6
7
8
26
27
28
29
30
31
32
25
9
10
11
12
13
14
15
16
18
19
20
21
22
23
24
17
1
2
3
GBS-Display / Light-Display
Rev. 1.8
Littfinski DatenTechnik (LDT)
KL5
braun
gelb
10...18V~
12...24V=
KL6 BU2
39
38
37
36
35
34
33
40
BU3
OUT
IN
braun
brown
gelb
yellow
Vom Modellbahntrafo
From transformer
Einstellungen:
Adjustment:
Dis1 Adr:016-001
Dis1 K08-01:VoHE
GN2
GE2
GN1
GE
GN
RT1
GE1
RT2
WS
GN
RT1
WS
RT2
WS
GE
GE1
GE2
GN1
GN2
Ausfahrsignal
exit signal
Zughalt
train stop
Rot / red
Grün / green
1
Fahrt
proceed
Hp1
Hp0
Rot / red
Grün / green
2
Vorsignal
advance signal
Zughalt
train stop
Rot / red
Grün / green
3
Fahrt
proceed
Vr1
Vr0
Rot / red
Grün / green
4
Langsamfahrt
slow approach
Vr2
Langsamfahrt
slow approach
Hp2
Rangierfahrt
proceed shunting
Sh1
Colored sample connections can be found on our Web-Site www.ldt-infocenter.com at the section “Sample Connection”.
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. 09/2022 by LDT
-
1
-
2
LDT 050032 is a display module for a decoder that controls switchboard lights and can be used to enhance model railway layouts. It connects to a master module and up to three additional display modules, allowing for control of up to 160 outputs and 640 light signals. The module supports various types of lights, including incandescent lamps and LEDs, and provides adjustable voltage to accommodate different lighting requirements. It also features common plus pole inputs for even distribution of power.
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