Model Train Technology LSC IIa User manual

16 Port DCC LED Scene Controller IIa
KEYPAD USER MANUAL
Model Train Technology LLC
10524 Moss Park Rd. Ste. 204-256
Orlando, Florida 32832
407-242-5436
www.ModelTrainTechnology.com
[email protected]

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QUICK START
PLUG THE POWER SUPPLY INTO THE POWER SOCKET.
PLUG YOUR LEDS INTO ANY OF THE LED 16 LED PORTS
IDENTIFIED IN GREEN IN THESE PICTURES.

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SLIDE THE POWER ON/OFF SWITCH TO THE RIGHT.
THE DISPLAY WILL SHOW 1111, then 3, then 1234
AND THEN GO BLANK.
THE BLUE POWER LIGHT WILL BE LIT.
AND SO, WILL ANY LEDS YOU HAVE PLUGGED IN!

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TO CHANGE THE ANIMATION ON PORT#1:
MAKE SURE AN LED IS PLUGGED INTO PORT #1
PRESS AND HOLD THE KEYPAD ON/OFF FOR 1 SECOND.
THE DISPLAY WILL LIGHT AND SHOW: 1 1
PRESS THE RIGHT HAND BLACK UP BUTTON TWICE SO THAT
THE RIGHTHAND DISPLAY SHOWS “3”.
PRESS THE SAVE KEY ONCE. THE DISPLAY WILL FLASH.
PRESS THE KEYPAD ON/OFF FOR 1 SECOND – TO TURN IT
OFF.
PORT #1 LED WILL BE BLINKING.

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INTRODUCTION
The LED Scene Controller II (LSC II) is a powerful but simple-to-
use LED animation controller. 100 Quick Set behaviors have
been preprogrammed so it’s simply a matter of selecting an
output port and then assigning a number representing that
behavior. There are 16 ports and depending on what type of
LED you are using and at what brightness setting you can
connect as many as 64 LEDs. Use our 1-to-4 connector to
connect up to four LEDs per port.
The LSC II has a 1Amp capacity.
Each pin can operate separately, or multiple pins can be
“coordinated” to create other effects. For example, the alternate
flashing mode allows any two adjacent pins to, you guessed it,
alternate flash. If you set all 16 pins to this mode, you have a
marquee lighting effect. This one controller can run the police
lights, a crossing gate, multiple random on off ports, a rotating
beacon, fade streetlights on and off and show a TV simulation in
a building – all at the same time!
Additionally, if you have a DCC Command System for running
your trains, you can connect the LSC II and control (turn on and
off and configure) any combination of those effects from your
hand controller.
A common challenge with using LEDs is deciding what voltage
and resistor value to use so as not to burn them out. To solve
this the LSC II allows you to control the effective output voltage

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by setting the maximum brightness. This allows you to mix and
match 3.3v and 12v LED on the same LSC II.
We’ve enclosed the LSC II inside a sleek case and designed the
base of the unit with matching bracket (sold separately) that
allows you to snap the unit in place anywhere around your layout.
Here are the special effect categories for reference.
• Adjust each LED for individual “brightness”
• Flickering
• Blinking with individual pin on/off speeds
• Rotating Beacon (simulation)
• MARS simulation
• Fade all, one or groups of pins with up to 18 hour timer.
• Random on/off with adjustable pace (all pins or one pin)
• Step, Chase, Race – each LED on/off in sequence
• Alternate 2-pin Flashing
• TV Simulation (use 2,3 or 4 LEDs)
• Arc Welding
• Lighting
** Some speed settings apply to all LEDs whereas blinking and brightness settings
apply individually to each LED (they can be different). If you have multiple boards with
the same DCC address but you program them separately, they will perform based on
the board specific configuration.
You can also configure and control the LSC II from your NMRA®
DCC system. That also means you can use jmri (www.jmri.org) or
similar control software. Our favorite is Railroad Automation
(RRAuto.com) Please see the LSC II DCC Manual.

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The LED Scene Controller has a DCC onboard decoder that
allows you to both configure and control your lights remotely.
There are two types of decoder in the DCC eco-system:
Multifunction decoders and Accessory decoders. The LSC II can
operate as either of these which gives you great flexibility in how
you want to set up your lighting. This means you can set up
switch controllers that turn specific lighting effects on and off.
With this newest release of the LSC II-a we have added triggers
that can be activated by your DCC system and they work in both
Multifunction and Accessory mode. Setting Triggers and Trigger
timeouts is discussed at the end of this manual.

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OVERVIEW
1. POWERING the LSC II (12-25V DC or AC, 1A)
Note: While our LSCI MICRO board allows you to power the board and
LEDs via your DCC system, the LSC II with Keypad requires an external
power supply to operate. If you connect DCC as the main power source to
the LSC II it will only read the digital signal, which is only a few milliamps,
and will not draw current to power the LEDs. This is great for Club setting
where keep track and accessory power separate is a requirement.

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OPERATIONS
To turn on the LSC II, slide the right-hand slide POWER ON/OFF switch to
the RIGHT.
The blue LED on the top of the case will turn on.
The 4-number LEDs may flash or have on odd segment lit but after 2
seconds you will see “
1111
”, then “
3
” and lastly “
1234
” on the display
and then the numbers will disappear.
“
1111
” indicates that the LSC II is set for DCC Multifunction decoder
operation. “
3
” is the default DCC address and “
1234
” indicates that all is
working. At that point the LEDs that you plugged in will all turn on
depending on what FX setting you set. The default mode for each port is
ON and the brightness setting is 20%
If your unit indicates “
2222
” first, then your LSC II is set to operate as a
DCC Accessory switch operation.

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If you never plan to use DCC with your LSC II, you can ignore the first two
number indications. You can also disable this start up sequence by set
FastBoot ON.
The LSC II has two modes. It is either in Animation Mode or Configuration
Mode. If you see any red numbers on the top of the LSC II, the LSC II is in
Configuration Mode. If they are off and the blue light is on, the LSC II is in
Animation Mode.
If the blue light is off, the LSC II power is Off.
To switch between Animation mode and Configuration mode, push and
hold button the LEFT TOP Keypad On/Off button for about 1 second and
release. Pushing this button toggles back and forth between these two
modes. The LSC II will not react to a very quick push. If your push is too
long the LSC II will switch back and forth. After a few tries you will get the
hang of it.
There are two pairs of “number” LEDs on the top of the LSC II. On the left
is the number of the selected Port. When you switch to configuration
mode this will always start at “1”.
To change the port number, push the Up or Down black buttons
on the left side top of the LSC II.
On the right side are the two digits that represent the configured
special effects behavior. There are 99 built-in special effect
options, plus “0” (zero) which is OFF for that port. See the chart.
To configure a Port to behave with a specific special effect, select
the port number on the left and then select the behavior number
on the right side.
Press the
SAVE
button once to save this to the LSC II. The digits
will blink indicating a successful save. The setting is saved even
when power is turned off or disconnected.

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You can change the setting as many times as you want.
Remember to press Save.
To see the behavior, switch back to Animation mode.
ADJUSTING THE LED BRIGHTNESS:
To adjust the brightness of any Port, switch the LSC II into
Configuration mode. Press the Right-side button on the top
once. You will see decimal points on each displayed digit of the
LSC II. The number on the right now indicates the brightness
level 0-99% of the port that is selected on the left. Push the
black Up and Down buttons on the right side of the LSC II to
adjust the brightness up or down.
3.3V and 12V settings
The LSC II is configured so that a 100% brightness setting is ~14VDC. This
is a few volts higher than 12V which is maximum for the Woodland Scenic
Roomette® products as well as other 12V LEDs. The default brightness of
all the ports is set at 10%. This is the MAXIMUM value for 3.3V LEDs with
a 25V power source. In this way if you plug in only 3.3V LEDs when you
start up you won’t have any problems. And then you can adjust them as
you need.
It is possible to burn out 3.3V LEDs very quickly by applying
excess voltage above the 50% setting. We opted to give you
this flexibility so that you can mix and match 3V and 12V LEDs on
the same LSC II. Please use this wisely.
Here are the approximate voltages for different power sources:
Power Adapter Output Maximum Port voltage output
25vdc (Woodland Scenic) 14.0v
18v 13.9v
12v (for 3.3V LED only) 8.6v

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Press the
SAVE
button to save the new setting. If you don't press Save
and you change ports or switch modes, the LSC II will revert to the
previously saved setting.
To switch out of adjusting the brightness, press the Right-side button once
more. The decimal points will disappear, and the number will change to
the value representing the special effect setting. Pressing the button again
will toggle back and forth between setting the Brightness and setting the
special effects Behavior for the port number that is shown on the left.
If you forget what the button does and you have lost this piece of
literature, flip the LSC II upside down to see the reference key.
The arrow keys have a “fast” mode. If you hold the key down for 2
seconds, the rate of change roughly doubles.

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CONNECTING LEDs
The LSC II has 16 Ports, labeled counterclockwise as viewed from the top
of the LSC II. You can use the ports in any order.

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CONFIGUREING THE LSC II for Special Effects
We suggest you start with some basic setting so you can quickly become
familiar with how the LSC II works. Let’s start with what we call “singles”.
Most of the special effects are grouped into TENs with the first digit
representing the basic FX. In the chart below, 2 is the number for Flicker.
If you set a port to 2 it will Flicker at the default setting. As you will see in
the 100 Chart, all the “2” are grouped. So any effect whether 2 or 21 or 25
will Flicker. Likewise, with 3. All effects that begin with 3 will blink.
Try some of the settings below to get the effect (pun intended).
FEATURE: When you have more than one Port set to a common first
value, say all set to 22, when you change ANY Port that has a leading 2, all
the ports will change to that same new number. If you change Port 5 from
22 to 24, all pins that were 22 before will now change to 24. This is
necessary to keep the integrity of the timing of the flicker behavior. There
are some exceptions:
FX that begin with 1 will not change.
FX that begin with 3 (Blink) will not change.
FX that begin with 5 (Fade) will not change
FX that begin with 9 will not change.

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OTHER NOTES:
• Some FX work with several ports in unison. Step, Chase, Race and TV
sim work this way by design. But you can also mix effects on
different ports. For example, you might use an Arc Welding FX with
a flicker effect on a red LED to simulate the hot metal.
On one of our displays we have a HO police car that we kit bashed
from Woodland Scenic. We connect the headlights, rear lights and
the top Red beacon to three different LSC II ports and three different
effects.
Step, Chase and Race require a group of adjacent pins to make
sense. The effect will turn each light on in sequence with a small
timing gap between them.
• The MARS effect uses the Beacon Timing. Therefore, to set the
speed of the MARS effect, set the PORT to the Beacon setting that
corresponds to the desired speed. Save it. Then change the Port FX
to Mars.
• Fade – Fade timing is by default in 10 second increments. This can
be increased or decrease via CV #127. The range is 1-255. The
duration of the ON time and OFF time are set via the keypad or CV’s.
(see the chart). The range is 1 to 255. Thus with 255 set to a port ON
and the seconds increment set to 255 you can have a timer that is
65,025 second or 18 hours long! That is extreme but this wide range
allows you to set your layout animation to turn the lights on and off
to a 24-hour cycle. For example, ON for 12 hours and then OFF for
12 hours, or On for 18 hours and OFF for 6. The LSC II does not
have a real time clock (RTC) so it’s only counting seconds from when
the device is powered and animation is activated. It doesn’t know
what time of day it is.

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• Fade = 50. If you set a port to Fade using the preprogrammed value
of 50, it will disable the Fade timer for that pin but set the pin to fade
on command. This allows you to have a Fade effect on ports that
you control only via DCC. To return the port to an active timer,
select either “5” or any other 50’s value (like 51) other than “50”.
Think of the zero of the 50 as “off”.
• Welding 1,2 and 3 use different time gaps between activity. 1 is the
shortest and 3 is the longest. Combine these on different Ports so
that one activity FX is the white-hot arcing and the longer period
could be a RED led meant to show the red-Hot arcing.
• Lighting – setting them Mode to 16 follows the value in CV 125 which
is a 1-minute delay by default. Lighting 17 divides this by ½and
Lighting18 doubles the value.
• The Step FX turns on and off LEDs in sequence starting at Port 1 (if it
is set to a 7 series) through to 16. It will skip Ports that are not set to
a 7 series 71-79)
o The Race sequence repeats by starting at 1
o The Chase sequence repeats by going backward from 16, then
forward at 1, so back and forth.
o Each LSC II can either Race or Chase but not both
simultaneously.
• DCC Signal Scan is the amount of time that the LSC II waits after
power on to switch into animation mode if it does not detect a DCC
Signal. You can select ANY Port since it affects the entire device,
select the value for the delay option and press SAVE. The previous
FX behavior for that Port will NOT change.
To see the effect, you must switch OFF the LSC II. After it’s start up
cycle you will be able to detect a change in time that it takes to start
the animations – assuming you are not connected to DCC. If you are
connected to DCC, you must press F5 (Animation ON/OFF) to
activate the device animation.

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• TV Simulation works with a White and Blue LED on separate Ports or
in Color with a 3 separate Ports connected to an RGB (Red-Green-
Blue) LED. The LED type is common Anode. (You can buy the proper
RGB LED chip from our store.) The different settings are meant to
simulate different types of TV activity. It’s not perfect but it is
effective, nonetheless. You can mix the FX on each color line if you
want. This effect is a Random-on-Random effect so it may be very
difficult to track the differences.
• Relay – The LSC II will drive the digital inputs of both 5VDC and
12VDC Relays which use a 5V digital signal. When you select 99 for
relay, the LSC II will automatically set the power setting to 27%
assume a 18vdc input. Adjust accordingly for different input voltages
to get 5vdc output.
USING SWITCHES AND FUNCTION KEYS TO
SIMULTATE TRIGGERS
The LSC IIa will let you set triggers so that a port only displays when its
trigger is tripped or “active”. You can assign any valid switch address
within the 16 addresses starting with the first address set for the LSC-IIa.
By default, your LSC-IIa is set the address 3. That means that all the
switch addresses from 3 to 18 are available to assign to ANY of the LSC-
IIa ports. By doing so you can have one or more ports by triggers
simultaneously and you can have multiple LSC-IIa on the layout react in
parallel.
When trigger #1 is tripped, the trigger will stay activated as long as the
switch is Thrown (ON). After the switch is Closed (OFF) the port lights
will continue to Animate for 5 seconds and then turn off. The trigger
Timeout STARTS after the detector is OFF.
If you LSC-IIa is configured a Multifunction decoder, function keys F11-
F26 will operate in the same manner. When the function key is set on,

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the trigger is tripped. A port set to respond to triggers will stay on
(animating) as long as the function key is set to on.
You can change the duration of the Trigger Timeout as described
below.
Trigger Timeout Settings
Trigger Timeout is the amount of time that Animation continues AFTER
a detector has stopped detecting – by whatever means you have set up.
When you activate a trigger, the trigger stays on for five seconds by
default. Then the trigger shuts. The trigger will stay on until the switch
or function key is turn off, and then for five seconds more. You can
shorten or lengthen the amount of time that the trigger stays active after
the sensor has stopped. The shortest time is immediately, the longest
time is 255 seconds ( 4 ½minutes).
To change the Trigger Timeout, set the CV values 224-231 to
correspond to the port you want it to activate.
RESET
There are a few reasons that you may want to reset the LSC II back the
factory defaults. One is that you forgot the DCC Address. Or, you just
want to get back to the default settings.
TO RESET THE LSC II, turn on keypad mode. It doesn’t matter what the
display is showing, just that the display is on.
Then, PRESS AND HOLD the two black UP ARROW buttons. After
about 5 seconds, the display will read all ZERO. Release the buttons.
Once the reset is complete the display will blink as few times and then
return the display showing PORT #1 set to “1”.