Technical Specifications - Viessmann 4701 Mode D'emploi

The integral contact connected to the two red
wires can be used for switching the track power
and therefore for automatic train control.
Programming of the address
Every digital device requires an address in order
to allow the command control station or any other
input device to send specifi c commands. The
desired address has to be programmed. In order
to do this, connect the signal to the digital system
temporarily. Now you have to switch the decoder
into programming mode. Push a ball point pen into
the small opening of the signal drive.
If you push once the decoder is ready for program-
ming in the Märklin-/Motorola format: The signal
slowly changes its aspect three times as confi rma-
tion.
A second push with the pen and the decoder
is ready for the NMRA-DCC format. The signal
changes ist aspect three times – this time very
rapidly.
Enter the desired address and switch the signal.
Now the signal has been programmed and
confi rms this by slowly changing its aspect three
times.
If you use the pen a third time, without sending a
switching command beforehand, the signal returns
to normal operating mode. The address is not
changed.
In the NMRA-DCC mode the signal can also be
programmed to a locomotive address which can
then be activated by pushing one of the function
buttons 'F1' – 'F4'. This may be used with the
Roco Lokmaus 2. To avoid any unwanted side
effects it is important to switch off the command
station prior to programming. Otherwise the digital
signal would respond to the fi rst command for a
locomotive with active 'F' button and would be
programmed to this particular address.
Main signal and distant signal
The distant signal alerts the engineer about the
aspect of the main signal long before the latter can
be seen. The distant signal of a main signal with
two linked indicating arms shows either "proceed
at reduced speed (Vr2)" or "stop at main signal
(Vr0)". Depending on the permitted maximum
speed and the general condition of the line,
prototype distant signals are located either 400 m,
700 m or 1,000 m before the main signal to which
they are assigned.
It is recommended to use the digital main signal
4701 in conjunction with a digital distant signal
4710 (see fi g. 4 on the pages 10 and 11). Both sig-
nals are programmed to the same address. Thus
they are controlled by the same button and always
show the corresponding aspect.

Technical Specifications

Digital formats:
Current consumption
in the moment
of action (< 0,1 s):
Maximum load for
the relay contacts:
Dimensions of the
signal motor box:
NMRA-DCC and
Märklin/Motorola
0.7 A
2.0 A
49.6 x 20.4 x 13.1 mm 3
(length x width x height)
GB
5