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ManualsBrandsLDT LITTFINSKI DATEN TECHNIK ManualsDigital SystemsHigh-Speed Interface HSI-88
12
Even if you use only some few feedback modules on your
model railway track it is recommended to distribute the
feedback modules to all three inputs (LEFT, MIDDLE, RIGHT)
of the HSI-88 evenly.
As a result, the feedback-information will be much faster
detected by the HSI-88 and transferred to the PC.
IN
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16
KL6KL5KL4KL3KL2KL1
Littfinski DatenTechnik (LDT)
ST2ST1
Rückmeldemodul RM-88-N
16 - channel feedback module
Rev. 1.0
BU1 BU2
s88-N
OUT IN
s88-N
OUT
Digital-Profi werden!
16 Rückmeldeeingänge für den
s88-Rückmeldebus.
Rückmeldemodul
RM-88-N
L
ittfinski
D
aten
T
echnik (
LDT
)
D-25492 Heist
www.ldt-infocenter.com
s88-N
IN
10
9
11
8
7
6
5
4
3
2
1
12
13
14
15
16
KL6KL5KL4KL3KL2KL1
Littfinski DatenTechnik (LDT)
ST2ST1
Rückmeldemodul RM-88-N
16 - channel feedback module
Rev. 1.0
BU1 BU2
s88-N
OUT
IN
s88-N
OUT
Digital-Profi werden!
16 Rückmeldeeingänge für den
s88-Rückmeldebus.
Rückmeldemodul
RM-88-N
L
ittfinski
D
aten
T
echnik (
LDT
)
D-25492 Heist
www.ldt-infocenter.com
s88-N
IN
10
9
11
8
7
6
5
4
3
2
1
12
13
14
15
16
KL6KL5KL4KL3KL2KL1
Littfinski DatenTechnik (LDT)
ST2ST1
Rückmeldemodul RM-88-N
16 - channel feedback module
Rev. 1.0
BU1 BU2
s88-N
OUT IN
s88-N
OUT
Digital-Profi werden!
16 Rückmeldeeingänge für den
s88-Rückmeldebus.
Rückmeldemodul
RM-88-N
L
ittfinski
D
aten
T
echnik (
LDT
)
D-25492 Heist
www.ldt-infocenter.com
s88-N
IN
10
9
11
8
7
6
5
4
3
2
1
12
13
14
15
16
KL6KL5KL4KL3KL2KL1
Littfinski DatenTechnik (LDT)
ST2ST1
Rückmeldemodul RM-88-N
16 - channel feedback module
Rev. 1.0
BU1 BU2
s88-N
OUT IN
s88-N
OUT
Digital-Profi werden!
16 Rückmeldeeingänge für den
s88-Rückmeldebus.
Rückmeldemodul
RM-88-N
L
ittfinski
D
aten
T
echnik (
LDT
)
D-25492 Heist
www.ldt-infocenter.com
s88-N
IN
10
9
11
8
7
6
5
4
3
2
1
12
13
14
15
16
KL6KL5KL4KL3KL2KL1
Littfinski DatenTechnik (LDT)
ST2ST1
Rückmeldemodul RM-88-N
16 - channel feedback module
Rev. 1.0
BU1 BU2
s88-N
OUT IN
s88-N
OUT
Digital-Profi werden!
16 Rückmeldeeingänge für den
s88-Rückmeldebus.
Rückmeldemodul
RM-88-N
L
ittfinski
D
aten
T
echnik (
LDT
)
D-25492 Heist
www.ldt-infocenter.com
s88-N
IN
10
9
11
8
7
6
5
4
3
2
1
12
13
14
15
16
KL6KL5KL4KL3KL2KL1
Littfinski DatenTechnik (LDT)
ST2ST1
Rückmeldemodul RM-88-N
16 - channel feedback module
Rev. 1.0
BU1 BU2
s88-N
OUT IN
s88-N
OUT
Digital-Profi werden!
16 Rückmeldeeingänge für den
s88-Rückmeldebus.
Rückmeldemodul
RM-88-N
L
ittfinski
D
aten
T
echnik (
LDT
)
D-25492 Heist
www.ldt-infocenter.com
s88-N
IN
10
9
11
8
7
6
5
4
3
2
1
12
13
14
15
16
KL6KL5KL4KL3KL2KL1
Littfinski DatenTechnik (LDT)
ST2ST1
Rückmeldemodul RM-88-N
16 - channel feedback module
Rev. 1.0
BU1 BU2
s88-N
OUT IN
s88-N
OUT
Digital-Profi werden!
16 Rückmeldeeingänge für den
s88-Rückmeldebus.
Rückmeldemodul
RM-88-N
L
ittfinski
D
aten
T
echnik (
LDT
)
D-25492 Heist
www.ldt-infocenter.com
s88-N
L1 M1 R1
L2 M2 R2
L-Max M-Max R-Max
IN
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9
11
8
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3
2
1
12
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16
KL6KL5KL4KL3KL2KL1
Littfinski DatenTechnik (LDT)
ST2ST1
Rückmeldemodul RM-88-N
16 - channel feedback module
Rev. 1.0
BU1 BU2
s88-N
OUT
IN
s88-N
OUT
Digital-Profi werden!
16 Rückmeldeeingänge für den
s88-Rückmeldebus.
Rückmeldemodul
RM-88-N
L
ittfinski
D
aten
T
echnik (
LDT
)
D-25492 Heist
www.ldt-infocenter.com
s88-N
IN
10
9
11
8
7
6
5
4
3
2
1
12
13
14
15
16
KL6KL5KL4KL3KL2KL1
Littfinski DatenTechnik (LDT)
ST2ST1
Rückmeldemodul RM-88-N
16 - channel feedback module
Rev. 1.0
BU1 BU2
s88-N
OUT
IN
s88-N
OUT
Digital-Profi werden!
16 Rückmeldeeingänge für den
s88-Rückmeldebus.
Rückmeldemodul
RM-88-N
L
ittfinski
D
aten
T
echnik (
LDT
)
D-25492 Heist
www.ldt-infocenter.com
s88-N
Bestell-
bezeichnung /
Order code:
Kabel Patch xm
Bestellbezeichnung /
Order code: Kabel Patch xm
Bestellbezeichnung /
Order code: Kabel Patch xm
KL1
s88 Rückmeldebus
High Speed Interface 88
HSI-88
Rev. 2.1
Littfinski DatenTechnik
br. gelb
14..18V~
Computer
RS232
Schnelles Computer-Interface für den s88-Rück-
meldebus. Ermöglicht 3 Rückmeldestränge.
Digital-Profi werden!
L
ittfinski
D
aten
T
echnik (
LDT
)
D-25492 Heist
www.ldt-infocenter.com
High Speed Interface-88
HSI-88
LEFTMIDDLERIGHT
SolderSide
Adap-HSI-s88-N Rev. 1.1
Littfinski DatenTechnik (LDT)
Adapter:
Adap-HSI-s88-N
braun
brown
gelb
yellow
Vom Modellbahntrafo
From transformer
Computer
RS232
Kabel Patch 0,5m,
Kabel Patch 1m,
Kabel Patch 2m
oder / or
Kabel Patch 3m
Kabel Patch 0,5m,
Kabel Patch 1m,
Kabel Patch 2m
oder / or
Kabel Patch 3m
Kabel Patch 0,5m,
Kabel Patch 1m,
Kabel Patch 2m
oder / or
Kabel Patch 3m
Kabel Patch 0,5m,
Kabel Patch 1m,
Kabel Patch 2m
oder / or
Kabel Patch 3m
Kabel Patch 0,5m,
Kabel Patch 1m,
Kabel Patch 2m
oder / or
Kabel Patch 3m
Kabel Patch 0,5m,
Kabel Patch 1m,
Kabel Patch 2m
oder / or
Kabel Patch 3m
The above example shows a possible distribution of
feedback modules to the three inputs.
The administration and addressing of the feedback modules will
be supported by your model railway software.
How to register additional feedback modules please consult the
manual of your model railway software.
Standard feedback modules of the s88 feedback system
usually include 16 inputs.
With the HSI-88 up to 31 of those feedback modules (62 of
LDT RM-GB-8-N track occupancy detection modules with 8
inputs) can be controlled. Max. 31 modules can be connected
on each bus line. The summary of all three lines shall not
extend a total of 31 modules.
All s88-feedback bus compatible feedback modules can be
connected to the interface HSI-88.
Beside the LDT modules RM-88-N and RM-88-N-O for
moment-contacts and the RM-GB-8-N for track occupancy
detection even different types of feedback modules from
different manufacturers can be used.
Different brands and types can be connected to the feed back
lines even if they are mixed.
Further examples for using the HSI-88 and other LDT
products for performing feedback tasks with various kind of
contacts can be downloaded from our Internet Page (www.ldt-
infocenter.com) from the download section.
For the HSI-88-B kit a solid low-priced casing is available
under the part number LDT-01. Further details are available on
our Internet Page.
Communication with the PC:
After switching on the power supply a red LED at the HSI-88
will indicate ready-to-operate.
The HSI-88 works event driven that means that each feedback
information will be transferred directly to the PC. This saves
considerable PC resources and shortens the reaction time
as the PC does not have to poll feedback information in cycles
(which means delays) but the HSI-88 itself will report each
change to the PC directly and without delay.
During interaction between PC and HSI-88 via the serial port
the red LED will be OFF. As the interaction will be very fast the
LED will show therefore a kind of flickering.
If you want to include the communication with the HSI-88 into
your own written model railway software you can download a
list of complete commands from our LDT-Internet Page
(www.ldt-infocenter.com).
Trouble shooting:
What to do if something is not working as described above?
If you have purchased the interface as a kit please check
carefully all parts and all soldered joints.
Here you will find some descriptions of failures and the causes
respectively how to solve the problem:
1. The rail way software does not recognize the HSI-88.
Feedback information will not be transferred from Interface to
the PC.
• Is the LED of the HSI-88 on after switching the unit on? If
not, check the power supply on clamp KL1.
• Is the LED flickering after starting the rail way software?
Background: after starting the software the PC tries to
contact the registered HSI-88 Interface and the LED
should flicker. Does the LED not flicker it is possible that
the COM port is defective.
Check this by changing the serial ports of the digital
control unit with the port of the Interface HSI-88.
2. After starting the rail way software the LED of the HSI-88
Interface flickers. Nevertheless there will be no connection.
Deactivate the FIFO-Buffer of the connection adjustment for
the COM interface where the HSI-88 is connected to the PC.
With respect to the PC operating system (Win2000, XP, Vista,
Win7, Win8 e.g.) via Working Place, System Control, System
and Device Manager or similar.
Further products from our Digital-
Professional-Series:
Adap-HSI-s88-N
Via the 3-fold Adapter is it possible to connect s88-feedback
modules directly via the screened Patch-Kabel to the Interfaces
in accordance to
s88-N
.
RM-88-N / RM-88-N-O
16-fold feedback module with 16 inputs (RM-88-N as Märklin
s88 switching against ground, RM-88-N-O with 16 galvanic
separated opto-coupler inputs) for s88-standard connections
and
s88-N
.
RM-GB-8-N
8-fold feedback module with integrated occupancy detectors
for a current load up to 3 Ampere (peak current 7 Ampere) for
s88-standard connections and
s88-N
.
All products can be supplied as easy to assemble complete
kits as finished modules or as finished module in a case.
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
Märklin is a registered trademark.