NOTE: Detailed information on the PIKO SmartDecoder XP 5.1 Sound is available as a PDF file on our
Webshop on the page of the respective item number. The file contains a full description of all functions
and operating possibilities for the new SmartDecoder XP 5.1 Sound.
Description
This PIKO SmartDecoder XP 5.1 Sound Next18 is a compact, very powerful multiprotocol sound decoder of the latest
generation with 12 bit sounds and high sample rate, 8 sound channels, an output power of 2.5 watts and a significantly
increased memory depth. The sound decoder provides a noise-free sound experience at the highest level. It complies
with the current RCN standards in all areas and can be used in DCC and Motorola® digital systems. Furthermore, it
also works in analog mode with DC or AC voltage. The sound decoder is RailCom® as well as RailCom Plus® capable.
The innovative PIKO SmartDecoder XP 5.1 Sound with many braking section functions independently recognizes the
respective operating mode and has a wide variety of setting options for the additional functions.
The load-controlled sound decoder works with a fundamentally newly developed auto-adaptive motor control for silky-
smooth operation and is thus suitable not only for DC motors, but also for bell armature motors up to a continuous current
consumption of 1 A. The sound decoder masters ABC braking, ABC automatic shuttle as well as ABC slow speed. The
setting of the motor characteristic is done via the minimum, average and maximum speed (simple characteristic), or via
the extended characteristic with individual settings for 28 speed steps. The sound decoder has two direction-dependent
lighting outputs, as well as four (two of which are logic) additional special function outputs that can be switched via
function keys up to F68 (DCC). The shunting mode with extended slow speed range, the three possible starting and
braking delays, as well as the many vehicle sounds are also switchable via function keys. The sound part can control
fixed function outputs as well as the motor output of the decoder. For example, the lighting of a diesel locomotive flickers
when the engine is started. Due to the advanced power management the PIKO SmartDecoder XP 5.1 is supported in
case of short-term voltage loss.
Installing the PIKO SmartDecoder XP 5.1 Sound
Remove the jumper plug from your model’s Next18 interface. Insert the new sound decoder into the interface socket.
Please install the loudspeaker as shown in the graphic of the "Spare parts list".
Check for crossed wires and short circuits
before and after reinstalling the shell. Place the model on your programming track with programming mode activated on
your DCC system. During programming or when reading the model’s DCC address, a small amount of current will flow
through the model, which does not affect the decoder; even in the event of a short circuit.
Special functions A1 to A4
The special function outputs A1 to A4 of the sound decoder can only be used if the desired consumers are already
connected to the Next18 interface in the vehicle, or solder pads are present on the main board. The outputs A3 & A4
provide logic levels and must be wired accordingly on the main board.
First-time use of the decoder (state of delivery)
Enter address 3 on your DCC control system. Depending on the data format used to address the sound decoder, the
locomotive runs in DCC mode with 28 speed steps or in Motorola® mode. When using a RailCom Plus®-enabled
DCC system, the decoder is recognized automatic and can be operated immediately. If the decoder is used on a
conventional analog layout, it can be controlled with a DC or AC power pack. The decoder will automatically detect
the layout’s operating mode.
NOTE: In DC analog mode, your model will only start at a higher voltage than what you may accustomed to when
operating analog models. You will need to turn the throttle up for the model to start operating.
Function outputs in analog mode
It is possible to program the decoder so that function keys F0 - F12 (as they are assigned in the function
mapping) can also be activated in analog mode. To do this, CVs 13 & 14 must first be programmed with a DCC
central control unit. The corresponding values can be found in the CV table of the detailed operating instructions.
The light function F0 and the motor noise F1 are switched on ex works.
PIKO SmartDecoder XP 5.1 Sound Next18
for Electric Locomotive Rh 1100 NS N
multiprotocol
40375-90-7031_2022
Function assignments
PIKO Spielwaren GmbH
Lutherstr. 30
96515 Sonneberg
GERMANY
A short circuit in the motor, lighting, pick-up wiper, or wheelsets can destroy the
decoder as well as the electronics of the model!
CV
Description
Area
Value*
1
Locomotive address
DCC: 1 - 127
Mot: 1 - 80
3
2
Minimum speed
(the speed from 0 until the locomotive is running at speed step 1)
0 - 255
0
3
Acceleration delay
0 - 255
120
4
Braking rate
0 - 255
120
5
Maximum speed
(must be greater than CV 2)
0 - 255
220
6
Average speed
(must be greater than CV 2 and less than CV 5)
0 - 255
75
7
Software version
(The processor can be updated)
-
differently.
8
anufacturer identification
decoder reset, CV8 = 8
different
162
12
Decoder operating mode
Bit 0=1 DC (analog operation; direct current) on
Bit 2=1 DCC data format on
Bit 4=1 AC (analog 3-rail operation; alternating current) on
Bit 5=1 Motorola® data format on
Value*
*1
*4
*16
*32
0 - 117
53
17
18
Long locomotive address
17 = high Byte
18 = low Byte
1 - 10239
192 - 231
0 - 255
1000
195
232
27
Brake signal settings (automatic stop)
Bit 0 = 1 -> ABC (Automatic Brake Control) right rail positive
Bit 1 = 1 -> ABC left rail positive
Bit 4 = 1 -> DC; opposite direction of travel
Bit 5 = 1 -> DC; same direction of travel
Value*
1
2
16
32
0 - 51
0
29
DCC standard configuration
Bit 0=0 Normal direction of travel
Bit 0=1 Opposite direction of travel
Bit 1=0 14 speed steps
Bit 1=1 28 speed steps
Bit 2=0 Digital mode only
Bit 2=1 Automatic analog/digital recognition
Bit 3=0 RailCom® turned off
Bit 3=1 RailCom® turned on
Bit 4=0 Speed steps over CV 2, 5, and 6
Bit 4=1 Use the characteristic curve from CV 67 - 94
Bit 5=0 Short address (CV1)
Bit 5=1 Long address (CV 17/18)
Value*
*0
1
0
*2
0
*4
0
*8
*0
16
*0
32
0 - 63
14
30
Error codes for the motor, thermal overload, and function outputs:
1 = motor error, 2 = thermal overload error, 4 = function output error
0 - 7
0
* Factory setting
F0
Light
F10
2-Chime Horn
F20
Curve Squeal
F1
Motor
F11
Cab Door
F21
Clickety-Clack
F2
High Tone Horn
F12
Cab Window
F22
Volume Regulator
F3
Cab Light 1
F13
Pantograph
F23
Mute
F4
Cab Light 2
F14
Main Switch
-
F5
Engine Room Lights
F15
Auxiliary Air Compressor
-
F6
Train Lighting: Engine pulling
F16
Compressor
-
F7
Train Lighting: Engine pushing
F17
Manual Fan
-
F8
Switching Gear
F18
Train Brakes
-
F9
Low Tone Horn
F19
Brake Test
-
