Massoth DiMAX 1203B User manual

MASSOTH
DiMAX® 1203B Digital Booster
Digital Booster 3 x 4 Amps for NMRA compatible model railroads
Item No.: 8141001
Version 1.00 – 12/07
DiMAX® 203B Digital Booster

MASSOTH
In ex Page
I. General Description 2
II. Summary of Functions 2
III. Layout of Terminals 2
1 Please rea this first! 3
1.1 Safety Details an Warnings 3
1.2 Warranties an Guaranties 4
1.3 Warranty Claims
1.4 Service an Customer Support
4
4
2 Scope of Supply 4
3 Getting started 5
3.1 Hook Up 5
3.2 Power Supply 6
3.3 Fuse 7
3.4 Track Hook Up 7
3.5 Hook Up of Control Components 8
3.6 Hook Up with a DiMAX®, LGB® or Lenz® Central Station (or compatible) 8
3.7 LED Status Indications and Control Panel 0
4 The First Switch-On
4.1 Changing the Modes of Operation
4.2 Overvoltage Protection
4.3 Overload Protection
4.4 Loss of Signal from the Central Station
4.5 Adjustment of the Output Voltage
5 Operational Mode (Booster) 2
5.1 Connecting the Outputs in Parallel 3
5.2 Operational Mode 2 (Booster with Reverse Loop Function) 4
5.3 Operational Mode 3 (Booster with Braking Function) 5
5.4 Special Function with Slow Speed in Operational Mode 3 6
6 Operation with Central-Navigator 7
6.1 Operation with Lenz® Central Stations 8
6.1.1 Operation with other Central Stations 9
7 Glossar 20
8 Technical Specifications 23
9 Manufacturer Information 23
Please rea this Manual thoroughly before operating your DiMAX Digital Booster
DiMAX® 203B Digital Booster

MASSOTH
I. General Description
The DiMAX® 203B Digital Booster is based on the same technical specifications as the Di-
MAX® 200Z central station. The DiMAX 203B features 3 discrete output amplifier stages
which deliver 0 Amps permanently ( 2 Amps in peaks) depending on the setting and the
operational mode. An overload protection and a temperature controlled fan are integrated.
The DiMAX 203B Digital Booster provides 3 operational modes: booster, booster with a re-
verse loop function, and booster with a braking function. In addition the DiMAX 203 is inde-
pendant of any digital protocol which makes it usable with NMRA compatible systems or any
other digital system.
II. Summary of Functions
Features of the DiMAX® 1203B Digital Booster:
- 3 x 4 Amps max. riving current (continuous max. 0 Amps)
- External power supply from 12V AC to 18V AC or 12 V DC to 24 V DC resp. 230VA
- Voltage limitation (track voltage is limited to 23.5 V if powered by DC supply)
- A justible output voltage from 4V to 22 V (if powered by AC supply)
- Integrate fan (temperature controlled)
- 3 stage LED status in ication per channel
- NMRA DCC compatible
- LGB® MZS compatible
- Booster interface
- Lenz® CDE interface
- Central-Navigator interface (see note page 2)
III. Layout of Terminals:
- External power supply: 12V AC to 18V AC or 12 V DC to 24 V DC resp. 230VA
(fused separately)
- 2 Terminals for Central-Navigators (front panel, not yet activated, see note page 2)
- 3 x Track power connector (rear panel)
- 2x Booster interface (rear panel)
- Lenz® CDE interface (rear panel)
The number of DiMAX® bus connectors for handheld controllers, RC receiver, feedback mo-
dule, train detection module etc. may be expanded at any time by using an additional DiMAX
adapter (Item No. 8 3800 ).
Note: This manual mentions a Central-Navigator. This item will be available in fall 2008 an is esigne only for
smaller scales like HO an N. The Central-Navigator is not usable for G-Gauge.
DiMAX® 203B Digital Booster 2

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1 Please rea this chapter thoroughly before starting the operation!
1.1 Safety Details an Warnings
1.1.1 This Product is not suitable for children under the age of 8 years. This product may have sharp edges.
Inappropriate handling may cause injuries. Operate this product only with products posted in this
manual. Measurements and electrical specifications are subject to change without further notice.
1.1.2 The DiMAX® 203B Digital Booster may only be used for the operation of digitally controlled model
railroads. Do never connect the bus connectors to your telephone line! This will result in irreparable and
costly damages.
1.1.3 The DiMAX® 203B Digital Booster may only be operated with digital components posted in this
manual. Even if other devices may have the same connectors, an operation will not be possible and
may result in damage of the DiMAX® 203B Digital Booster and other components.
1.1.4 Do not drop this product. Do not expose the DiMAX® 203B Digital Booster to shocks and do not shake
it. This may result in damage.
1.1.5 Do not expose the DiMAX® 203B Digital Booster to direct heat, sunlight or a damp environment. This
may affect the operation.
1.1.6 Do not open the DiMAX® 203B Digital Booster. There are no user-serviceable components inside.
This will void your warranty and may result in damage.
1.1.7 Do not clean the DiMAX® 203B Digital Booster with abrasive cleaners, strong acids or corrosive clea-
ners. Use a plastic-compatible cleaner or dry soft cloth only.
1.1.8 We stress the fact that this product is not a toy. Do never leave your children unattended when opera-
ting the DiMAX® 203B Digital Booster. Children should operate this item only under supervision of
adults.
1.1.9 Never use analog transformers on the same track with digital components. This goes for the operation
of catenary lines also.
1.1.10 Keep the ventilation grilles free of obstructions. These vents are needed for cooling the DiMAX® 203B
Digital Booster. Do not pour any liquids into these grilles; keep the DiMAX® 203B Digital Booster in a
dry environment.
1.1.11 Visually inspect your digital components regularly, remove damaged items immediately.
1.1.12 The right to change this product in accordance with technical progress is reserved by MASSOTH
ELEKTRONIK, Seeheim, Germany. We can not compensate for damages resulting from inappropriate
handling, non-observance of this manual, operation with altered or damaged items or items not suitable
for the DiMAX® 203B Digital Booster. We do not compensate for damages resulting from overheating
or moisture and inappropriate opening of the housing.
1.1.13 Removing the safety label voids your warranty instantly and irrevocably.
1.2 Warranties an Guaranties
MASSOTH ELECTRONICS USA warrants this product for year from the original date of
purchase. This product is warranted against defects in materials and workmanship. Peri-
pheral component damage is not covered by this warranty. Normal wear and tear, consumer
modifications as well as inappropriate use and handling are not covered. Errors and changes
excepted.
3 DiMAX® 203B Digital Booster

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1.3 Warranty Claims
Valid warranty claims will be serviced without charge within the warranty period. To initiate a
warranty claim, please contact your dealer or MASSOTH ELECTRONICS USA for an RMA
(Return Merchandise Authorization). MASSOTH ELECTRONICS USA cannot be responsible
for return shipping charges to our repair facility. Please include your Proof of Purchase with
the returned goods.
1.4 Service an Customer Support
For support and technical questions contact: [email protected] or call (see below).
For downloading the latest firmware update go to: www.massoth.com.
Further support is available through your retailer or via the Massoth USA Hotline.
Hotline hours (USA): 9:00 a.m. to 4:00 p.m. EST Monday thru Friday
Massoth Electronics USA, LLC
6585 Remington Dr.
Cumming, GA 30040
Ph. 770-886-6670
Fax [phone]
2. Scope of Supply
- DiMAX® 1203B Digital Booster
- Multi-Connector for power hook-up
- 3 x Track power connector
- 1 x Lenz® CDE connector
- 1 x Booster interface cable
- Manual
In case any of these items is missing or damaged contact your local dealer or the
manufacturer.
Note: Please keep your box and the Styrofoam parts, to ensure proper packaging in case of
shipping. If dropped, the DiMAX® 203B Digital Booster can be damaged significantly.
DiMAX® 203B Digital Booster 4

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3. Getting starte
The following chapter describes the hook-up and the first operation of the DiMAX® 203B Di-
gital Booster.
3.1 Hook Up
Place the DiMAX® 203B Digital Booster in an appropriate place. The DiMAX® 203B Digital
Booster should not be placed close to a radiator, any heating device or in direct sunlight. At
all times ensure sufficient ventilation and a proper temperature range for the DiMAX® 203B
Digital Booster.
The ventilation outlet is on the rear panel an it shoul be kept clear of any
obstructions at all times.
5 DiMAX® 203B Digital Booster
Illustration 1: The front panel of the DiMAX® 1203B Digital Booster

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3.2 Power Supply
DiMAX® 203B Digital Booster 6
Illustration 3: Power Terminal
Illustration 2: The rear panel of the DiMAX® 1203B Digital
Booster

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Connect the power supply cables to the green 2-pole connector with a regular screw driver
and insert the connector into the main power socket on the rear panel of the DiMAX 203B
Digital Booster (as shown in illustration 3). Do not tin the cables! Utilize core cable ends or
twist the cables well before tightening the mounting screws.
3.3 Fuse
The DiMAX® 203B Digital Booster is powered by an external power supply (transformer,
switching power unit, battery). The power supply input is fused with a separate fuse on the
rear panel of the DiMAX® 203B Digital Booster (see illustration 2).
A 0 Amp slow-blow fuse must be used.
3.4 Track Hook Up
The DiMAX® 203B Digital Booster features 3 power outputs which may be connected in par-
allel. For the first test operation connect output # to the track. Parallel operation is explained
later in Chapter 5. .
Connect your track power cable to the black 2-pole terminal. Mind the correct polarity. Do not
tin the cables! Utilize core cable ends or twist the cables well before tightening the mounting
screws.
7 DiMAX® 203B Digital Booster
Illustration : Track hook-up and Voltage control

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3.5 Hook up of Control Components
The DiMAX® 203B Digital Booster features two terminals on the front panel. These terminals
may be utilized to connect a Central Navigator (see note page 2), DiMAX bus components as
e.g. feedback module, train detector, or the DiMAX transducer to the DiMAX® 203B Digital
Booster. The DiMAX transducer will enable you to use LGB MTS II components with the Di-
MAX system.
The Master terminal is reserved for the Central-Navigator (see note page 2) only!
The Slave terminal may be used as a regular control bus terminal for DiMAX components.
These terminals may only be used for the operation of a Central-Navigator (see note page
2) in conjunction with DiMAX components!
A regular Navigator does not work, when connected to this jack!
3.6 Hook Up with a DiMAX®, LGB® o er Lenz® central station (or compatible)
The rear panel (Illustr. 2) provides two options for connecting bus components.
The DiMAX® 203 Booster may be connected to a Lenz® central station (or compatible) with
the 3-pole Lenz® CDE jack.
DiMAX® 203B Digital Booster 8
Illustration 5: Control Bus Terminals and Reset/Mode-Keys

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See the manual of your central station for the correct wiring!
The DiMAX® 203 Booster connects to a DiMAX® or LGB® central station (MTS II or III) via
the 4-pole booster bus terminal. Utilize the booster interface cable to hook up the booster to
the central station.
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3.7 LED Status In ications an Control Panel
The LED indicators show the status of the operation and the actual status of the layout. There
are three LED indicators provided per channel. Illustration 6 shows all the variations of indica-
tions possible:
The respective modes are explained in chapter 5.
DiMAX® 203B Digital Booster 0
Illustration 6: LED Status Indications

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4. The First Switch-On
In case you use the DiMAX® 203 Booster with a central station, the central station must be
switche on first.
Switch on the power supply for the DiMAX® 203 Booster.
After the power up the LED indicators switch from red to green. The lower green LEDs will be
illuminated provided the central station is not in the emergency stop mode and the booster is
connected correctly to the central station.
This shows that the data transfer to the central station is established.
4.1 Changing the Operation Mo es
Keep the mode key depressed while pushing the reset button once. Then release both but-
tons.
The respective channel will change to the next mode.
The sequence is: booster - booster with reversing loop - booster with braking function.
4.2 Overvoltage Protection
The overvoltage protection of the DiMAX® 203 Booster has been activated if all three red top
LEDs are illuminated. In this case the supply voltage is too high, and the booster switches off
for safety reasons. Make sure to operate the DiMAX® 203 Booster within the specifications.
Disconnect the DiMAX® 203 Booster briefly from the power source to reset the system.
4.3 Overloa Protection
In case one or more channels are showing a flashing red LED, the respective channel has
been switched off due to high amperage. Make sure to eliminate the cause of this failure and
reset the faulty channel by depressing the RESET button for about 2 seconds.
4.4 Loss of Signal from the Central Station
Flashing green LEDs indicate that the data connection to the central station is faulty. Check
the booster cable from the central station to the DiMAX® 203 Booster respectively the
connection from the booster to the Central-Navigator (see note page 2).
4.5 A justment of the Output Voltage
The voltage regulator on the rear panel regulates the output voltage of all outputs from
4Volts to 22Volts.
This regulator works only if the input voltage is AC!
DiMAX® 203B Digital Booster

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5. Operation Mo e 1 (Booster)
In this mode the DiMAX® 203 Booster works as a regular booster (Illustr. 7). In lieu of the
800Z you may use a DiMAX® 2 0Z, a DiMAX® 200Z, LGB® MTS II or III. The hook-up of a
Lenz® (or compatible) central station is shown in chapter 6. .
In case two or three outputs are used in the same layout, connect the outputs according to il-
lustration 8. Make sure the outputs are connecte to the track in the same polarity: al-
ways connect output – to track – an output + to track +.
DiMAX® 203B Digital Booster 2
Illustration 7: Wiring diagram in mode 1 with 1 output
Illustration 8: Wiring Diagram Mode 1 utilizing 3 outputs

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5.1 Connecting the outputs in parallel
Parallel use of output channels is only possible in Mo e 1 (Booster) !
You may connect 2 or 3 output channels in parallel to increase the output Amperage. Combi-
ning two outputs delivers 7 Amps continuously, three outputs deliver approx. 0 Amps conti-
nuously.
Important: The channels nee to be connecte in the same polarity! Otherwise com-
ponents connecte to the DiMAX 1203B might be amage or estroye as well as the
booster itself.
The wiring diagram is shown in illustration 9.
The section points may be crossed without hesitation operating DiMAX® or MZS II resp.III
central stations in connection with the DiMAX® 203B booster.
3 DiMAX® 203B Digital Booster
Illustration 9: Wiring diagram for parallel operation of 3 channels in mode 1

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5.2 Operation Mo e 2 (Booster reversing loop automation)
In mode 2 the DiMAX® 203B Booster is operating as a reversing loop module. Illustration 0
shows a typical wiring diagram. In this setup channel is working in mode 2 (reversing loop)
and channel 2 is working in mode (booster).
DiMAX® 203B Digital Booster 4
Illustration 10: Wiring diagram with mode 2 (reversing loop)

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5.3 Operation Mo e 3 (Booster with braking function)
Mode 3 features a brake and stop function. Illustration 2 shows the typical setup. A patented
controlling process facilitates the use of all loco functions while the train is in the braking sec-
tion. Only the speed is controlled by the DiMAX® 203B booster. In this setup channel 3 is
working in mode (booster) whereas channel 2 is working in mode 3 (brake and stop functi-
on).
In case the signal shows “GO“ the first and second block is supplied with power by channel 3,
the train will pass through.
In case the signal shows “STOP“ the relay switches over when the train passes the track con-
tact. Block will be powered by channel 3 and block 2 will be powered by channel 2. The
train will stop after it passed the track contact. If the signal is changed to “GO“ the relay swit-
ches back to channel 3 and the train starts running again.
5 DiMAX® 203B Digital Booster
Illustration 11: Wiring diagram with mode 3 (braking function)

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5.4 Special Function “Slow Spee “ in Mo e 3
You may also set up a slow speed section with the DiMAX® 203 Booster.
See the wiring diagram and setup in illustration 3.
Channel 3 operates in mode (booster), channel 2 works in mode 3 (braking function “slow
speed“) and channel works in mode 3 (braking function “stop“).
First, the speed for channel 2 must be set at the DiMAX® 203 Booster. Set the warning si-
gnal (advance signal) and let the train run into this section. The speed of the train is set by
pressing the mode button of channel 2 repeatedly. The speed changes in 4 steps to “0“ and
starts again with “ 4“. The LED of channel 2 will flash according to the speed setting: fast for
high speed, slow for slower speeds.
The set up in illustration 3 works as follows:
In case the warning signal (advance signal) is not set and the following signal shows “GO“ the
train will pass this section in normal speed. The train is powered by channel 3.
In case the warning signal is set and the following signal shows “STOP“ , the train will pass
DiMAX® 203B Digital Booster 6
Illustration 12: Wiring Diagram in Mode 3 with slow speed section and stop function

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the warning signal and trigger the first track contact. This contact operates the first relay
which changes the power supply of block 2 to channel 2 and the train changes subsequently
to slow speed accordingly. After passing the second track contact the second relay is swit-
ched and block 2 is powered by channel which will stop the train as channel is working in
the stop function. In case the main signal is changed to “GO“ the train will assume normal
speed and continue.
With mode 3 you may also implement slow speed sections (track construction sites) or secti-
ons with steep down-grades.
You may find detailed examples on our home page http://www.massoth.com
6. Operation with the Central-Navigator (see note page 2)
You may connect a Central Navigator to the DiMAX® 203 Booster.
Important: In this case the booster an CDE interface must not be use !
Connect the Central-Navigator (see note page 2) to the Master plug (you may connect a Di-
MAX® RC receiver to this port and operate the Central-Navigator (see note page 2) wireless).
The Slave port is usable for any DiMAX® control component e.g. handheld controller, RC re-
ceiver, Feedback Module, Train Detection Module. An additional bus adapter may be needed
(DiMAX® Adapter Item No. ME 8 3800 ).
7 DiMAX® 203B Digital Booster

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6.1 Operation with Lenz® Central Stations
Illustration 4 shows how to hook-up the DiMAX® 203 Booster to a Lenz® Central Station.
Please note that the CDE cable is connected correctly!
This wiring diagram is also valid for all other central stations featuring a CDE-Interface.
Depending on the type of central station it must be tested whether a passage from the boos-
ter powered section to the section powered by the central station is possible. In case one of
the components is producing a short circuit, the time base of the two components is different
and a passage from the booster section to the central station section is not possible.
DiMAX® 203B Digital Booster 8
Illustration 13: Wiring Diagram in mode 1 with a Lenz® Central Station

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6.2 Operation with other Central Stations
Illustration 5 shows how to hook-up the DiMAX® 203 Booster to central stations of other
manufacturers. Please note that the track power connector of the central station must never
be connected to one of the outputs of the DiMAX®. Make sure that there is no connection of
the booster powered track section to a track section that is powered by the central station.
9 DiMAX® 203B Digital Booster
Illustration 1 : Wiring Diagram in Mode 1 with Central Stations of other manufacturers