4
GB
Important notice!
Before installing and using this product please
read this manual carefully!
This decoder is designed for model train layouts
– exclusively in dry spaces – for block occupancy
detection in conjunction with a SELECTRIX
®
or
compatible digital command control system. Elec-
trically isolated track sections (single pole) are
wired to the feedback decoder in order to recog-
nise loads of up to 1 A. The decoder 5262 is to
be connected to the Sx-bus of a SELECTRIX
®
digital command control system (such as e.g.
Trix SELECTRIX
®
, Rauthenhaus Digital, MÜT
DIGIRAIL, etc.).
Any other use beyond the above is considered as
inappropriate. No liability is accepted for defects
or damages resulting from inappropriate use; such
risk is the full responsibility of the user.
output that provide a signal as long as the track
sector is occupied.
Therefore the feedback decoder 5262 is equipped
with 8 integrated occupancy detectors. The current
sensors register signals of less than 1 mA. The
sensors are wired to the isolated track of a two-rail
track system.
The sensors recognize any load (e.g. any vehicle
drawing a current), in other words locomotives and
cars with interior lighting and their own current pick-
ups.
It is also possible to use a thin layer of resistance
lacquer (but not conducting electricity lacquer) on
the isolated axles of cars in order to bridge the
wheels with a resistance of 10 to 40 kOhm. Thus
there is a minimal current drawn by each car that is
sufficient for the sensors in the 5262. Alternately you
could use the ROCO HO wheel sets with integrated
resistors 40186 and 40187.
Suppliers of resistance lacquer:
Trix Modelleisenbahn GmbH & Co. KG
Resistance lacquer, part no. 66882
Uhlenbrock Elektronik GmbH
Resistance lacquer, part no. 40410
(sold in selected hobby shops)
Feedback Decoder and Automatic Train Control
Feedback decoders that are set to the same address
as an accessory decoder can activate the latter
directly. Thus you can set up for example an
automated block sector with Viessmann semaphore
signals connected to the accessory decoder 5260
with the signal being controlled by the train.
Track contacts can also activate certain commands
in PC programs or route control devices.
Only momentary contacts represent a problem since
they generate short pulses that are not always
registered by the software. Therefore each feedback
decoder can be set to a delay of up to 2.5 seconds
to provide to any software or device enough time to
register the signal.
Connecting the Feedback Decoder to the
SELECTRIX
®
System
The feedback decoder is to be connected to the
Sx-bus of the SELECTRIX
®
central unit with the bus
cable
Viessmann
5261 (1.5m) - either directly or via
other feedback decoders, function decoders,
controllers etc. (see fig. 1). Always disconnect the
main‘s power while doing any wiring. The sequence
of connecting the devices to the Sx-bus can be freely
selected. The devices can be connected one after
another (in sequence) to the Sx-bus or to branches
of the bus connected via distributors. More than 100
devices may be wired to one Sx-bus (please refer
to the manual of the SELECTRIX
®
command
station).
! Please note !
Only use model railroad transformers
compliant with the regulations of VDE / EN.
Installation and electrical connection must
be carried out while the supply voltage is
disconnected!
Introduction
In order to operate a model train layout prototypically
e.g. via a PC or automatic route control (e.g. Trix
Lok Control 2000 with expansion for route control)
the track occupancy status has to be available
continuously. The SELECTRIX
®
system uses the
Sx-bus to transmit these signals. All devices such
as all types of decoders, locomotive controllers etc.
are to be connected to the Sx-bus. It is immaterial
in which sequence they are wired to the Sx-bus. The
feedback decoders recognize the status of the
relevant track sections and send this information
continuously to the central unit. Other device such
as a computer interface or a function decoder can
request this status information from the central
unit.
Function of the Feedback Decoder
A feedback decoder can report the status of
switches, train activated contacts or occupancy
detectors. Certain devices provide only a momentary
pulse such as contact tracks or reed contacts when
the train or perhaps only a certain coach activates
the contact. This is not always useful. For a control
system utilising a PC and the appropriate software
it is desirable to know which track segments are
occupied immediately after switch-on. Any “lost”
vehicles remaining on a track sector should also be
reported. This can only be achieved with continous
