PIKO Digi 1 User manual

PIKO digital
Manual

2
Getting off to a quick start :
1. Connect the adapter and the Digi 1 as described on page 8 under "Connection and
Operation".
2. The locomotives in the start set have been allocated addresses, which are shown on
the labels on the bottom of the locos together with the transmission channel for the
PIKO Digi remote control.
3. Put the loco on the track and note the address and transmission channel (see label on
bottom of loco). To start the loco all you have to do is to press one of the keys "A" to
"D" on the remote control corresponding to the transmission channel given on the bot-
tom of the loco. Then you can regulate the speed directly by pressing the keys "+" or "-
". If you press or while the model is in motion it does an emergency stop and
changes direction. We recommend you practise this a few times to give you reliable
control of the loco speed.
4. If you want to run another loco with a different address (see label on the bottom of
the loco) on your layout then proceed as follows:
Stop the loco in operation and put the second loco on the rails. You can control this
loco exactly like the first one by using the appropriate transmission channel keys chan-
nel "A" to "D". Please practise this a few times.
If you want to run both locos then press the appropriate transmission channel key ("A"
to "D") for the loco in question and regulate its speed and direction as described under
point 3 above.
That is the whole secret of digital control.
Congratulations ! you have mastered it already!
5. N.B.: if you have problems with running two locos e.g., if the two locos are heading
for a collision, press the "Stop" key immediately.
Remove one loco from the rails, then press the Stop key again and start again from the
beginning as described above.
If you press the Stop key for a second time before removing the locos from the rails
theywill start moving again at the same speed and - the crash is inevitable.
6. A better way to control the locos is as follows: to bring a loco to an emergency stop
it is safer first to press the channel key "A" or "B" for the loco and then either or
. This also stops the loco.
You should practise this a few times.
Engine drivers on the full-size railways aren't let loose on the passengers in the first five
minutes either. It simply takes practice!.
Enjoy your training - it's certain to be a success!

First of all we should like to congratulate you on acquiringyour new PIKO Digital Start Set.
You have taken a decisive step into the fascinating world of PIKO model railways.
Since you have decided on a digital system, unquestionably the modern way for run-
ning model railways, we should like to help you with some information that is impor-
tant for you and which will provide you with the basic knowledge necessary for using
digital technology.
You do not need to know anything about digital technology. Just as you don't need to
know why your computer does what you want - or sometimes doesn‘t! At the begin-
ning it is enough if the locos run the way you want and later, in a second step, you
learn how to set the switches.
It is a good idea to find a helpful dealer specialising in model railways who can advise
you when it comes to extending your new PIKO layout and from whom you can purcha-
se the extra PIKO products you need.
But before we explain how to set up your layout, we should like to give you some
general information.
Analogue versus digital
A fundamental decision
PIKO model railways give you lots of fun regardless of whether they are operated by
the conventional adapter and controller or by digital controls.
The conventional method of operating model railways is known as analogue technolo-
gy. It provides endless possibilities for large and small layouts. At the same time it has
the advantage of being very sturdy and, especially for beginners, it provides simple
access to the functioning of electric models. It is neither outdated nor antiquated nor
old-fashioned.
Digital technology is a bit more complicated since it includes various control and recei-
ver components. Owing to its potential complexity it necessarily requires more know-
ledge for its operation since the functions of the locos as well as many other accessories
can be controlled separately. The essential advantage of digital technology is that it is
possible to control several locomotives on one track at the same time.
An analogue layout can be converted to a digital layout without difficulty. Rails, turn-
outs, locos and wagons can all be operated digitally. However all the components to be
controlled must be provided with a data receiver, known as a decoder. This converts the
digital commands received into analogue current. Even on a digital layout the move-
ments of the locos, turnouts and signals are made via analogue driven motors.
Conversely operating a digital layout with analogue technology is also possible, but a
fair amount of alteration to the wiring is needed and there is no point - digital is so
much more versatile.
This means that if a PIKO model rail enthusiast has decided on digital technology, he or
she should if possible keep to this technology.
3

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Owing to its variety of control possibilities digital technology provides enormous enjoy-
ment. You will learn a lot and if the layout is complcated and many trains are to run at
the same time you can use a computer to control it - this is not always so simple but can
be an enjoyable challenge.
Analogue and digital technology - the fundamentals
With analogue technology the speed of PIKO locos is controlled by the voltage (0 -
14V). This is achieved by a controller such as the PIKO Speed control #55003 (speed con-
trol with mains adapter) or the transformer with speed regulator #55002.
With this only one loco can be driven on a track at a time. If several locos are on the
same track, they will all travel at the same speed. If the tracks are isolated from one
another it is possible to drive several locos but it is then necessary to connect several
speed controllers to the tracks with appropriate switching and separate speed controller
for each of the locos that will be simultaneously moving.
With digital technology the entire layout operates with the same voltage (14V). In
order to control the individual locos a control centre is required which sends commands
(digital data) to the locos via the rails. So that these commands have an effect in the
locos each loco is fitted with a decoder, which receives the commands and converts
them i.e. decodes them, hence the name decoder.
Each loco is given an address. So that each loco knows when it is being ‘spoken to’,
each command from the control centre must be preceded by the loco’s address.
Provided the address is identical with the address of the loco it will know: ”watch out,
this command is for me.” Then the command is decoded, the loco decoder converts the
command to an analogue function and the loco moves faster, slower, switches on its
lights, whistles or stops.
Technical description: The control centre converts the voltage received from the mains
adapter to direct current. This is transmitted to the rails via an inverter and associated
electronic circuits at a frequency of 10 - 20 kHz.
This high frequency current is converted by the loco decoder to analogue DC current
tha powers the motor as soon as the relevant command arrives.

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PIKO Digi 1 - introduction
To provide for an easy introduction to digital technology, PIKO, in cooperation with the
firm Uhlenbrock, which has had experience for many years in the field of digitally con-
trolled model railways, has developed a digital system which is very simple to operate.
This system which is based on the PIKO Digi 1 makes it easy for any PIKO model rail
enthusiast to set up a digital layout in easy stages.
The first element required is the PIKO Digi 1. This is the digital control unit for the PIKO
model rail layout. The PIKO Digi 1 takes over the control of the locos and other compo-
nents on the model rail layout. In the first phase of construction just 2 - 3 locos can be
driven at once since the mains adapter supplied with the PIKO Digi 1 only has enough
capacity to operate 2 - 3 locos.
If you want to extend the layout and run more than 2 locos at the same time the PIKO
Digi 1 can be supplemented by the PIKO Digi 2. But we will hear more of this later.
If it is intended to build a very large layout to run more than 4 - 6 locos at the same
time with a lot of turnouts operating simultaneously and with signals continually in
operation, the modeller will need a power source with high capacity because the model
rail layout will then need a great deal of current. This can be provided by the PIKO Digi
Power Box.
It goes without saying that in the next few years the PIKO digital system will be develo-
ped beyond these three basic elements to make it possible for model rail enthusiasts to
keep upgrading their digital layouts. Apart from this it is possible at any stage of the
construction to combine with the Uhlenbrock digital systems.
The various levels of construction are shown in the following diagrams:
After this the PIKO Digi 1 can be combined with one or two PIKO Digi 2 units:
PIKO Digi 1 with one rail circuit:

DeskTopTrafoT4
72VA
If it is desired to extend further, the PIKO Digi Power Box comes into play:
PIKO Digi 1 extended with two Digi 2 and three isolated rail circuits (maximal level of
construction; 10 PIKO Digi 2):
Conversion to PIKO Digi Power Box
6
PIKO Digi 1 extended with PIKO Digi 2 and two isolated rail circuits:
isolating track connection
isolating track connection isolating track connection
isolating track connection isolating track connection

7
We should now like to explain how to operate the PIKO Digi 1, which will of necessity
involve rather more technicalities.
PIKO Digi 1 - the functions
The PIKO Digi 1 is a digital control unit for model railways based on the DCC standard.
The PIKO Digi 1 receives its power from the mains via a mains adapter (transformer)
and transmits its commands to the locos via its connection to the track.
The control of the locos themselves takes place exclusively via the infra red remote con-
trol, the PIKO Digi-fern (remote control) This transmits the commands to the PIKO Digi
1, which sends them on in turn to the locos.
This means: the control passes from the PIKO Digi remote control via the PIKO Digi 1 to
the rails and from there to the loco containing the decoder. This then tells the engine:
”go faster or slower.”
Please note that the PIKO Digi remote control is only suitable for use indoors and that
under favourable conditions it has a maximum range of about 10 metres.
With the PIKO Digi remote control and the PIKO Digi 1 a maximum of 127 locos can be
addressed on a digital layout and their direction of travel and speed as well as their
other special functions controlled. In addition, with the two units, up to a maximum of
256 switches, signals and other electromagnetic accessories can be operated.
To make the PIKO Digi 1 more flexible in its use, the control system has 4 transmission
channels which are marked on the PIKO Digi remote control with the keys A, B, C and
D. You can store the address of a loco on each of these transmission channels so that it
can be controlled when the transmission channel is called up. In addition besides the
loco you can switch another 4 electromagnetic accessories via the same transmission
channel.
For instance, if channel A controls the loco with the address 15 and the accessories 1 to
4, loco 20 can be controlled using channel B together with the accessories 13 to 16.
Using these 4 transmission channels the modern railroader can switch rapidly from one
loco to another. You can carry this even further. If you have several PIKO Digi fern
remote control units and use them at the same time (up to 4) each PIKO modeler can
control his own loco via one of the four transmission channels without affecting the
locos of the other PIKO model train drivers.

Connection and Operation
The mains plug (mains adapter) ➀is
connected via the small plug ➁ to the
socket in the PIKO Digi 1. The two con-
nection leads marked "A" on the bot-
tom of the PIKO Digi 1 are first fixed in
the connecting clip ➂by pressing the
knobs ➃and are then connected to the
rails as follows:
Insert the connecting clip ➂into the
rail ➄ (only this rail has slits between
sleepers 5 and 7 for the clip). Now
insert the adapter ➀iinto the socket ➅.
Please note: if you are using the PIKO Connecting Clip #55270 then the condenser in
the clip MUST be removed. If the condenser is left in the Connecting Clip it will elimina-
te the high frequency control impulses and neither locos or accessories will work.
Next the 4 batteries for the PIKO Digi remote control must be inserted into the battery
compartment on the back as described.
Batteries of the following types can be used: LR03-AAA-1.5V.
8
G231
5
4
3
2
1
6
4

Now fit the adhesive pad to the base of the PIKO Digi 1. This will fix it to the model rail
layout so that the PIKO Digi remote control can always be aimed at the PIKO Digi 1.
There must be no obstacle between the PIKO Digi remote control and the PIKO Digi 1
that could block the Digi remote’s infra red signals to the Digi 1.
The PIKO Digi remote control works just like your TV remote control, which must to
also be able "see" your television.
For this reason when using the PIKO Digi remote control it should always be held poin-
ting towards the PIKO Digi 1 and not towards the loco to be controlled.
A red indicator LED under the transparent dome on the PIKO Digi 1 flashes when the
receiver has received the infra red signal from the PIKO Digi remote control.
Problem: no more current available or the locos stop running.
If a short circuit occurs on the track or if the locomotives draw too much current from
the track so that the PIKO Digi 1 or the mains adapter is overloaded then one or both
units may shut down automatically. You will recognise this by the fact that the locomo-
tives stop running.
If the LED on the PIKO Digi 1 flashes then this unit has switched off:
- the short circuit must be located and its cause removed or the current requirement for
the locomotives reduced (e.g. by removing a loco from the track).
- Switch the PIKO Digi 1 on again using the Stop key on the PIKO Digi remote control.
Everything should now carry on normally.
If the LED on the PIKO Digi 1 is not flashing, then the mains adapter has switched off:
- the short circuit must be located and its cause removed or the current requirement for
the locomotives reduced e.g. by removing a loco from the track
- The mains adapter will switch itself on again after a short pause. It is not necessary to
disconnect the mains adapter from the socket (230 V).
9
Modellbahngelände
mitGebirge
Digi1 PIKODigi-Fern
PIKODigi-Fern
Digi1
Mountainous model
rail layout

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control LED shows the current activity
in the PIKO Digi-fern remote control
stop key to switch the track current
on and off
loco key to initiate selection of the
loco address
electromagnetic accessory key to
initiate selection of the accessory
address
key to initiate programming a loco
decoder
key to increase the loco speed in steps
key to reduce the loco speed in steps
travel in reverse and emergency stop
travel forwards and emergency stop
special function switch lights on
special functionswitch lights off
keys for the special functions
f1 to f4
key to select special functions f5 to f8
no function
keys to switch accessories
keys to select the
transmission channel
Using the PIKO Digi-fern remote control
to
to
red

1. Control LED
As long as a key is being pressed on the PIKO Digi remote control, the remote control
sends an infra red signal.
This activity is shown by the control LED.
2. Transmission channel
The PIKO Digi 1 uses 4 transmission channels for the controls. The transmission signal can
be altered at any time by pressing one of the keys .
The address of a loco to be driven can be allocated to each transmission channel inde-
pendently of the other channels.
In addition, 4 individual variable addresses for electromagnetic components can be allo-
cated in each channel to the 4 accessory keys. The addresses selected for each channel
are not however stored permanently and are reset as follows when the Digi 1 has been
switched off:
When the power is switched on the channels are always allocated to the loco
addresses 1, 2, 3 and 4 and the accessory keys in all channels control magnetic compo-
nent addresses 1 to 4.
Using the channel keys on the PIKO Digi remote control it is easy to change rapidly bet-
ween controlling 4 locomotives and 4 groups each consisting of 4 accessories.
If several PIKO Digi remote controls are used each PIKO Digi remote control can select a
different transmission channel and so control an individual loco without affecting the
loco driven from another PIKO Digi remote control using a different transmission chan-
nel.
3. Loco control
First of all the transmission channel A, B, C or D must be selected using the keys
3.1. Entering the loco address
A loco address must be selected.
To select a loco address press the loco key The desired loco address can then be
entered using the numerical keys 0 to 9
The entry is concluded when any other key is pressed.
This rule does not apply to the channel selection keys . For instance, the entry
can be terminated by pressing the key for lights control or a key for altering the speed of
the loco.
If on the other hand the loco key , is pressed after the figures have been entered the
selection mode is terminated without carrying out the command.
The selection mode is also terminated if no input is made within 10 seconds.
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The address used as the loco address consists of the last (up to 3) digits entered provi-
ded this address is between 0 and 127. This means you can enter 8 digits if you like but
the PIKO Digi remote control only retains the last three. If an invalid address is entered
control remains with the previously selected locomotive.
Examples:
1.) input: [1] [f0]
On the loco with address 1 the lights are switched on.
2.) input: [6] [5] [4] [1] [2] [3] [+]
The loco with the address 123 increases its speed.
3.) input: [1] [2] [f0]
The loco address of the channel remains unchanged and the lights on the previously
selected loco are switched on.
Reason: in this example the loco key functions like a delete key i.e. the digits entered
are deleted when the loco key is pressed for the second time and the address enter-
ed is not valid.
If the loco address 0 is selected control is directed to a conventional loco without digital
decoder - if there is one - on the digital circuit. Thus it is possible to drive a loco
without decoder together with the locos fitted with decoders.
N.B./Warning:
If conventional locomotives without decoders are driven with the PIKO Digi 1 in digital
operation these locos make a low humming sound because the motor is continually
supplied with high frequency current.
This current can damage some engines e.g. bell-armature motors (Faulhaber, Escape etc)
and small N motors. On digital layouts these motors should always be used with a digi-
tal decoder.
3.2. Speed control
The speed of the loco is increased or decreased in steps with the keys or . If the
keys are held down the speed is altered in steps until either the key is released again,
the maximum speed is reached or the loco comes to a standstill.

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3.3. Selecting the direction of travel
The direction of travel is selected using the keys or . With the key the loco is
reversed and with the key it goes forwards. If one of the keys is pressed while the
loco is already in motion, the loco is first brought to an emergency stop and then the
chosen direction of travel started.
3.4. Switching the loco lights on and off
The lights on the loco are switched on with the key and off with the .
3.5. Special functions
The keys switch the special functions f1 to f4 on and off.
If the dual function key is pressed and then one of the keys the special
functions f5 to f8 are switched on or off.
If after pressing the dual function key another key is pressed which is not a special function
key then the process is broken off.
4. Operating accessories
Switches, signals and other items which carry out a function via an electromagnet or
solenoid are known as electromagnetic components or accessories for short.
Before an accessory address (using the red/green pairs of keys) can be entered the elec-
tromagnetic component key must first be pressed. Afterwards the desired accessory
address can be entered using the numeric keys 0 to 9. The first address is always alloca-
ted to the outer left red/green pair of keys.
The input is completed by pressing any other key with the exception of the channel
selection keys A, B, C and D. For example, the input can be completed by pressing a red
or green key or a key for controlling the loco.
If on the other hand after entering the numbers the electromagnetic component key is
pressed, then the selection mode is broken off without carrying out the command.
The selection mode is also terminated if no input is made within 10 seconds of the last
entry.
The address used for accessories consists of the last (up to 3) digits entered provided
this address is between 1 and 256. This means you can enter 8 digits if you like but the
PIKO Digi remote control only retains the last three. If an invalid address is entered con-
trol remains with the previously selected magnetic component.
Once the accessory addresses have been selected the components can be switched to
round (red) or straight (green) using the red and green keys.
The selected accessory address is always allocated to the outer left pair of keys. From
here, towards the right, the remaining pairs of keys switch the accessories with the fol-
lowing higher addresses.

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Examples:
1.) input: [1] [red1]
The accessory with the address 1 is switched to red and the accessory keys from left to
right switch the accessory addresses 1 to 4.
2.) input: [6] [5] [1] [2] [3] [4] [red1]
The accessory with the address 234 is switched to red and from left to right the accesso-
ry keys switch the components with the addresses 234 to 237.
3.) input: [1] [2] [red1]
The accessory address of the channel is not altered and the previously selected accessory
is switched to red
Reason: after the digits were entered the accessory key was pressed and this breaks off
the input.
5. Programming loco decoders
Initial settings of the loco decoders
The loco with the address "1" (see label underneath the loco) is controlled via transmis-
sion channel "A".
The loco with the address "2" (see label underneath the loco) is controlled via transmis-
sion channel "B“.
This can however be altered.
Using the key a loco decoder can be allocated a different loco address.
N.B.: When a loco is re-programmed only one loco should be on the track connected to
the power supply. If several locos are on the track all the locos will be programmed to
the same address.
To programme the address first the key must be pressed twice. Then the desired
loco address can be entered using the numeric keys 0 to 9. The address used as the loco
address consists of the last (up to 3) digits entered provided these are within the range
0 to 127. This means that you can enter 8 digits but the PIKO Digi remote control only
retains the last 3 digits. If an invalid address is entered the programming process is not
initiated.
If the key is pressed again after the loco address has been entered the input is com-
pleted and the automatic programming process is started.

15
Examples:
1.) input: [1]
Every loco on the track is programmed to address 1.
2.) input: [5] [6] [1] [2] [3]
Every loco on the track is programmed to address 123.
3.) input: [5] [6] [2] [3]
The programming process is not started because the last 3 digits are 623 and this is not
a valid address between 0 and 127.
Every loco which is programmed with the PIKO Digi 1 receives the loco address entered
on the PIKO Digi remote control and is switched into the 28 speed mode.
The 28 speed mode represents the levels of speed. This means that the speed is not alte-
red continuously but in small steps. Since these cover the range from approx 2 V star-
ting up current to a maximum of 14 V top speed current, with 28 steps there are so
many tiny steps that these do not register as steps at all but seem like a continuous
increase in the speed of travel.
The voltage intervals of approx. 0.4V are so small that the modeller cannot tell that it is
not a continuous process.
Other features of the loco decoder cannot be programmed.
It is not possible to read information from the loco decoder.
This means that it is not possible to test which loco address has been allocated to the
loco on the track. This does not matter, however since the loco or rather its decoder can
easily be re-programmed with a new address at any time.
6. Power on / off
The current to the tracks on the layout can be switched on and off using the key.
Note:
If 10 seconds elapse in selection mode after the keys are pressed and no
other key is pressed, the address input (i.e. loco address, switch address and program-
ming address) is automatically ended. Now the selection mode must be re-started.
The same applies to the dual function key . Here too if 10 seconds elapse after the
key is operated and no other key is pressed the process is broken off.

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7. LED signals
Track current switched on: LED permanently switched on
Track current switched off: LED flashes slowly
Short circuit at track exit: LED flashes quickly
Loco being programmed: LED flashes twice briefly with longer pause
Technical data
• Data format: DCC with 28 loco speed levels
• Loco addresses: 1-127, address 0 controls a loco without decoder on the digital circuit
(i.e. a conventional loco)
• Special loco functions: lights and f1-f8
• Accessory addresses (turnouts, signals etc): 1-256
• Refresh cycle: 12 locos
Refresh cycle: if the power to a loco is interrupted for more than 1 second, the decoder
switches to stop. Since this often happens on a layout, the data from the control centre
is sent to the locos repeatedly all of the time that the loco is operating. This is called
the refresh cycle. The PIKO Digi 1 refreshes a maximum of 12 locos. If more than 12
locos are on the layout it can happen that a 13th loco suddenly comes to a standstill
because it hasn't been refreshed. In this case it must be selected again and receive new
commands.
• Input voltage: from 12 V to 16V AC/DC
(N.B.: none of the power sources must exceed 16 V. If several mains adapters or trans-
formers are connected to the PIKO Digi 1 and the PIKO Digi 2, their voltages must be
within the range 14 V to 16 V.)
• Output current: max 1.8A
• Max. power pickup: 28VA
(N.B.: mains adapters or transformers of more than 45 VA capacity must not be connec-
ted to the PIKO Digi 1 or PIKO Digi 2. Doing so can lead to damage to the electronic
components.)
• Mains adapter included # 55010 in start sets : max 12 VA
• T3 Desk top transformer included in the PIKO digital basic set, # 55005: max. 28 VA
Maximum controllable locomotives: two
As described above up to 127 locomotives can be controlled using the PIKO Digi 1.
However, this does not mean that 127 locos can be driven using the mains adapter supplied with
the PIKO Digi 1.
Since each locomotive requires a certain amount of current, depending on its type between
300mA and 400mA, and some locos under load (i.e. when pulling a long train) use a lot more, no

more locos can be driven at one time than the mains adapter can supply with power. With the
mains adapter #55010/NA max. 850mA, included in the start set this would be two locos averaging
400mA.
If more locos are put on the track and too much current is drawn this overloads the mains adapter
which simply switches off. This is similar to a short circuit.
Controlling more than 2 locomotives
If you want to run more than two locos are to be driven on the layout then you must
either
• connect a more powerful transformer to the PIKO Digi 1
• or connect extra mains adapters known as boosters to the model rail layout to provi-
de additional power.
N.B.: PIKO Digi 1 and PIKO Digi 2 must not be operated using mains adapters or trans-
formers of more than 45 VA capacity. Doing so can cause damage to electronic compo-
nents and the digital control could be permanently damaged.
Higher capacity transformer for the PIKO Digi 1
The PIKO T3 desk top transformer, #55005
If you have a start set with a mains adapter plug for 850 mA power (# 55010) then you
can also increase the supply to your digital layout by replacing the mains adapter with
the PIKO T3 desk top transformer, # 55005. Using this T3 desk top transformer you can
exploit the full range of the PIKO Digi 1.
N.B.: Never connect 2 mains adapters in parallel to the same PIKO Digi 1 or to the same
connection clip. This would destroy the PIKO Digi 1. Moreover, this parallel connection
can result in an exceedingly dangerous high voltage current at the plug to the domestic
power supply!
With 16 V ~ output voltage the PIKO T3 desk top transformer produces a current of 28
VA (1.75 A). This means that 4 locomotives with a power requirement of approx. 400
mA each can be run on an electrically isolated track section.
The PIKO T3 desk top transformer is connected to the PIKO Digi 1 just like the mains
adapter (see section "Connection and Operation" above). All you have to do is to fit
the connecting lead between the T3 desk top transformer and the PIKO Digi 1 (see
Operating Instructions for the T3 desk top transformer).
Additional booster
The PIKO Digi 2
To increase the power supply to a PIKO model rail layout still further i.e. in order to run
more than 2 or 4 locos simultaneously, additional power supply units (transformers)
must be connected.
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18
For this PIKO recommends the PIKO Digi 2 with the T3 desk top transformer. With 16 V
~ output voltage the PIKO T3 desk top transformer produces a current of 28 VA (1.75
A). This means that 4 locomotives with a power requirement of approx. 400 mA each
can be run on an electrically isolated track section.
on an electrically isolated track section.
The T3 desk top transformer can supply current to electrically isolated track circuits
through the PIKO Digi 2. Each T3 desk top transformer must be connected to a separate
PIKO Digi 2. Using the T3 desk top transformer the maximum performance range of the
PIKO Digi 2 can be utilised.
In order for the digital data from the PIKO Digi 1 to reach the additional electrically iso-
lated track sections, the PIKO Digi 1 must be connected to each of the PIKO Digi 2 units.
To ensure that the strength of the signal sent by the PIKO Digi 1 is adequate no more
than 10 PIKO Digi 2 units should be connected to one PIKO Digi 1. You should make
sure that the length of the lead from each PIKO Digi 2 to the PIKO Digi 1 does not
exceed 2 m.
The PIKO Digi 2 is connected to the PIKO Digi 1 via the lead connected to the bottom of
the PIKO Digi 2 at exit "B". This lead is connected in parallel to the PIKO Digi 1 connec-
tion at the connecting clip on the G231 track.
Using a separate connecting clip the PIKO Digi 2 itself is then connected via the lead at
exit "A" to the electrically isolated track section. (You can use the PIKO Digi 2 in combi-
nation with the T3 desk top transformer in the same way as a booster for the PIKO Digi
Power Box. See diagram below.
230V~, 50 Hz AC
T3
G231
T3
G231
2
T3
G231
2
Länge max. 2 m
Länge max. 2 m
230V~, 50 Hz AC 230V~, 50 Hz AC
4
4
44
2
2
22
1
1
1
3
3
3 3
5
5
6 6 6
# 55291 isolating
track connection
# 55275 digital
connecting clip
# 55021 connecting lead for
Digi 1, Digi 2
Length max. 2m Length max. 2m
a maximum of 10 Digi 2 units
can be connected to Digi 1
# 55005 desk top transformer T3
input: 230 V~; output: 16 V~ 28 VA 6INPUT max. 16 V / 45 VA AC/DC

19
The locomotives used can be driven from one electrically isolated track section to anot-
her without any problems. They receive their control data from the PIKO Digi 1 which
transmits the data via the PIKO Digi 2. Care must however be taken to ensure that the
locomotives on a track section at any one time do not require more power than the
relevant transformer can supply. Work on the basis of approx. 400 mA per loco. If the
locos take up more power than the transformer can supply, it reacts like a short circuit
and the PIKO Digi 1 or Digi 2 or the transformer switches off automatically.
If the LED on the PIKO Digi 1 is flashing then the PIKO Digi 1 has switched off:
- the cause of the short circuit must now be eliminated or the power requirement of
the locomotives reduced (e.g. by removing a loco from the track)
- The PIKO Digi 1 is then switched on again using the stop key on the PIKO Digi remote
control. And now everything proceeds normally again.
If the LED on the PIKO Digi 1 is not on and is not flashing, the mains adapter has swit-
ched off:
- the cause of the short circuit must now be eliminated or the power requirement of
the locomotives reduced (e.g. by removing a loco from the track)
- The mains adapter will now switch on again after a short interval. It is not necessary
to disconnect the mains adapter from the 230 V socket.
N.B.: If you use the PIKO Digi 1 with the starter set adaptor (12 VA) and the PIKO Digi 2
connected with the desk top transformer T3, # 55005 (28 VA) then a short circuit will
occur when a train runs over the insulated rail joints (insulated rail joiners). No short cir-
cuit will occur if the digital connecting clips, #55275, are more than 1 metre apart.
This is not required if you use the PIKO Digi 1 with the desk top transformer T3, # 55005
(28 VA) and the PIKO Digi 2 with the adaptor, # 55010 (12 VA) or if both the PIKO Digi
1 PIKO Digi 2 are operated with the Desk-Top Trafo T3, # 55005 (28 VA).
The power peak
The PIKO Digi Power Box
The heights of digital control on a PIKO digital layout are reached using the PIKO
Power Box, the PPB for short.
In combination with the T4 desk top transformer the PPB delivers 72 VA. After deduc-
tion of the PPB's own requirements 48 VA are available to run the locomotives (divided
by 16 V = 3 A). This is enough to run 7 - 8 locomotives with a power requirement of 400
mA per loco on a section of track served by the PPB and separated from other tracks (3
A divided by 400 mA = approx. 7 - 8).
The most varied operations can be carried out centrally from this control centre.
The most important functions are summarised below:
• Two separate speed controls to drive locomotives
• Control for up to 9999 locos
• Switching function for up to 2000 electromagnetic accessories (Points, switches or signals)
• Switching for up to 48 rail routes each of which activates up to 10 electromagnetic
accessories successively

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• Fine speed control (up to 128 steps)
• 12 control functions: lighting, sound, etc (F1 to F12)
• multiple traction with up to 4 locos
• automatic switch-off in case of short circuit
• bus system for further extensions using Loconet.
Additional accessories can be incorporated using Loconet, such as manual controls, con-
trol panels, switching panels for electromagnetic accessories and rail routes, track in
use signals, connecting modules for switching panels and the Uhlenbrock Lissy system
for loco identification and automatic layout control.
• Computer connection via the serial interface (com port) on your PC
• DCC booster connection
• Programmable track connector
• Built-in receiver for the PIKO Digi remote control and connection for additional remo-
te control receivers
• Virtual loco addresses
• Multilingual operating instructions
• Compatible with NMRA-DCC
• Updateable operating software
This should be sufficient to give you a general picture. The PPB manual contains a full
description or you can download the description from our PIKO home page
www.piko.de.
The PIKO digital basic set, # 55011
If you have a conventional PIKO layout and would like to convert it to a digital layout,
you can achieve this with the PIKO basic set.
This contains all the elements required to convert your PIKO model rail layout to a digi-
tal system:
• PIKO Digi 1
• T3 desk top transformer (#55005)
• Connection lead from transformer to PIKO Digi 1 (# 55021)
• PIKO Digi remote control (' 55012)
• Connection clip (# 55275)
• 2 PIKO loco decoders (# 56120) with loco addresses 1 and 2
First install the decoder(s) in your PIKO locomotive(s). The separate operating instruc-
tions for the decoder contain a description. Please note the pre-allocated addresses at
the decoder (see the label on the decoder) Unless you alter the addresses first, you need
these addresses to control the locos!
Now disconnect the power supply previously in use (transformer or mains adapter with
speed control) from your model rail layout.