User manual

Littfinski DatenTechnik (LDT)
Operating Instruction
High Speed Interface
HSI-88 for the s88-
feedback bus
from the Digital-Professional-Series !
HSI-88-G Part-No.: 030313
>> finished module in a case <<
⇒ Extremely fast (9600-baud) galvanic separated
connection through the serial port (RS232) of the
Personal Computer (PC).
⇒ 3 feedback lines triple the reading speed of the
s88 feedback bus.
⇒ 3 feedback lines will also ease the grouping and
installation of the feedback modules below your
model railway panel.
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 02 66
Introduction / Safety Information:
You have purchased the High Speed Interface HSI-88 for the
s88 feedback bus. The HSI-88 is a high quality product, which
is supplied within the Digital-Professional-Series of Littfinski
DatenTechnik (LDT).
We wish 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 not be liable for any consequential
damages caused by improper use or installation.
The finished modules in a case come with 24 month warranty.
Connecting the Interface to your digital
control center and Personal Computer
(PC):
• Attention: Please switch off your model railway by
disconnecting the transformers from AC-current, and
switch off your PC before starting the installation of the
unit.
Voltage (14 to 18V AC from any model railroad transformer) will
be supplied via clamp KL1 to the interface HSI-88.
If you use the HSI-88 on a 3L system (Märklin tracks with center
conductor) you can use feedback modules which switch to
ground connection.
In this case please pay special attention to the correct
connection of the supply cables “brown” (system ground)
and “yellow”.
The input of clamp KL1 is marked accordingly.
If your model railway software supports the HSI-88 you need a
second free serial port on your PC. This port will be mostly
indicated as COM-Port.
Use the supplied computer cable to connect the Interface
HSI-88 via the free serial port with your PC.
KL1
s88 Rückmeldebus
s88 feedback bus
LEFTMIDDLERIGHT
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
At last connect the s88-feedback modules to the HSI-88
Interface by using the three 6-pole pin plugs marked LEFT,
MIDDLE and RIGHT.
With the HSI-88 you can build up 3 feedback lines. This will give
the advantage of speeding up the reading of the feedback
modules by three times.
KL1
R1
R7
R8
R11
R3
R9
R10
R6
R4
C8
D3
C3
C4
D2
CD4503
IC3
R2
R5
D1
+
C10
L1
C9
Q1
LM2574
IC2
C1
C5
R12
C2
1 5
96
BL09
BU1
89C52
IC1
LTV847
IC5
CD4503
IC4
Rev. 2.1
gelbbr.
s88 Rueckmeldebus
s88 feedback bus
RS232
Littfinski DatenTechnik
High Speed Interface 88
Computer
HSI-88
14..18V~
RIGHT MIDDLE LEFT
Another advantage is the simple arrangement and installation of
your feedback modules below your model railway track panel.
Start always with connecting the first line on the input marked
as LEFT of the HSI-88. If you want to build a second line
connect it to the input marked as MIDDLE. A third line must be
connected to the input marked as RIGHT accordingly.