Lionel SC-2 User manual

Lionel SC-2 Switch and
Accessory Controller
Owner’s Manual
CAUTION-ELECTRIC TOY NOT RECOMMENDED FOR CHILDREN UNDER EIGHT
YEARS OF AGE. AS WITH ALL ELECTRIC PRODUCTS, PRECAUTIONS SHOULD
BE OBSERVED DURING HANDLING AND USE TO PREVENT ELECTRIC SHOCK.
TRANSFORMER RATING-INPUT:120VAC;60 HZ ONLY;AC OUTPUT:12 VAC;3.6VA.
72-2980-250
2/07

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Congratulations
Congratulations on your purchase of the Lionel TrainMaster SC-2 Switch and
Accessory Controller! With this device you
can experience the benefits of TrainMaster
Command Control when operating your
switches and accessories with your CAB-1
Remote Controller.
The SC-2 listens for and responds to
switch (SW), route (RTE), and accessory
(ACC) commands from your CAB-1 Remote
Controller and Command Base.
You may choose to operate your SC-2 in its
standard configuration or in either of the two
alternate modes. The standard configuration
controls four switches and four accessories.
When operating in the alternate modes, you
may control up to six switches, or twelve acces-
sory actions.
A CAB-1 Remote Control (6-12868) and a Command Base (6-12911) are required
to operate the SC-2. Find them both at your authorized Lionel dealer.
Note!
The following Lionel marks may be used throughout this instruction manual and are protected under
law. All rights reserved.
Lionel®, TrainMaster®, Odyssey®, RailSounds™, CrewTalk™, TowerCom™, DynaChuff™,
StationSounds™, Pullmor®, ElectroCoupler™, Magne-Traction®, CAB-1 Remote Controller®,
PowerMaster®, Lionel ZW®, ZW®, PowerHouse®, TMCC™, Lionelville™

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Table of contents
Installing the SC-2 on your railroad
SC-2 basics 4-5
Powering your SC-2 6-7
Connecting Lionel switches to the SC-2 8-9
Modifying O-27 switches for use with the SC-2 10
Connecting hi-rail switch motors to SC-2 11-12
Operating switches with your SC-2
Programming the SC-2 switch numbers 13
Controlling switches with CAB-1 14
Creating routes around your railroad 15-16
Activating routes 17
Modifying routes 17
Clearing Routes 18
Operating accessories with your SC-2
Connecting accessories to the SC-2 19
Programming SC-2 accessory ID#’s 20
Controlling accessories with your CAB-1 21
Advancd opertions
Operating switches only 22
Operating accessories only 23
Operating output terminal connections 24
Troubleshooting
Replacing the fuse 25
Answers to questions 26-27
Accessory connections
Rotary beacon/Control tower/Floodlight tower/Icing station 28
Water tower 28
Lumber mill/Sawmill 29
Switch tower 29
Diesel fueling station 30
Oil derrick 30
Lumber loader 31
Log loader 31
Coal tower 32
Whistle shack 32
Freight station 33
Aircraft pylon 33
Oil drum loader 34
Bascule bridge 34
Uncoupling track 35
Lionel Service 36

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Each SC-2 can control switches and acces- sories through commands from the
CAB-1 Remote Controller and Command Base.
All SC-2 outputs are rated for 15 amps and
can control most switches and accessories
directly. Use the sheet of labels (included) to
identify the SC-2 ID#’s on your switches and
accessories.
The SC-2 has a built-in antenna to receive
signals from the TrainMaster Command Base.
Place the SC-2 anywhere near track connected
to a Command Base, and it will receive its
commands.
There are three sets of terminals on the
SC-2. Within each terminal block are an
upper and a lower row of three set screws.
The center screw of each group is for the
transformer Common/Ground/U or Power/A
terminal, depending on the application. The
left and right set screws are wired to a switch
or accessory to activate it. When a terminal is
programmed to control a switch, the opera-
tion will be momentary. If the terminal is set
to operate an accessory then you may select
AUX1 for a momentary operation or AUX2 to
toggle the accessory on or off. Refer to
Figure 1 on page 5 to identify the arrange-
ment of the terminals.
The SC-2 is designed for three operating
modes:
1. Control four switches through the left
and center terminal blocks. Control two
momentary and two on/off accessory func-
tions through the right terminal block.
2. Control six switches using all three
terminal blocks.
3. Control six momentary and six on/off
accessory functions using all three
terminal blocks.
To connect a switch or accessory to the
SC-2, use a screwdriver to loosen the set screws
on the terminal, then insert a stripped wire in
the opening directly beneath the set screw and
tighten the screw. Refer to
Figure 2.
You do not need to remove the
screws.
SC-2 basics
Installing the SC-2 on your railroad
Note! The labels printed on the SC-2 near the terminals refer to standard operation only.
If you program the SC-2 to operate only switches or only accessories, the action of
the terminals will change and will not correspond to the arrangement printed on
the circuit board.
Note!

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SC-2 basics (continued)
Installing the SC-2 on your railroad
ACC3 ACC4
ACC1 ACC2
SW 3
SW 1
Auxiliary or
track power
7-20V AC
SW 2 SW 4
Acc 1
Acc 2
SC-2
Toggle
On/Off
Momentary
Figure 1. SC-2 connections
Figure 2. Wire connections

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Powering your SC-2
Installing the SC-2 on your railroad
There are three ways to power the SC-2. The type of devices connected to the SC-2 deter-
mines which of these options will work with
your application. The SC-2 requires
7-20 VAC to operate correctly, and a fixed
voltage source is required. When powered
correctly, the green light on the SC-2 will illu-
minate.
All switches and accessories must
be powered by a separate power
supply. This power supply must not
be used to power the track.
If you use the SC-2 to operate
at least one switch, the power can be supplied
through the switch itself. No special wiring is
needed; however, one of the switches must be
properly connected to the Switch #1 terminals
at the upper left. These terminals are labeled
“1” in Figure 3.
Do not use the wall pack or the
separate power terminals on the
SC-2 if you are using it to operate
switches.
If your SC-2 serves only as an accessory
controller (no switches are connected), you
must power the controller with the included
Lionel AC wall pack or through track power. Do
not power the SC-2 with both the wall pack and
through track power.
To use the wall pack, simply plug the cord
into the socket in the back of the SC-2, then
plug the wall pack into the wall.
To use track power, attach a wire to the
outside rail or to the #2 terminal on a Lionel
Lock-On, and connect it to the top power
terminal. This is the Common/Ground/U
terminal. Attach another wire to the inside
rail (the #1 terminal on a Lionel Lock-On)
and connect the powered rail to the bottom
terminal. These terminals are labeled “3” in
Figure 3. Also, you can use these terminals to
attach a separate transformer directly to the
SC-2.
To use track power, you must be
operating in Command mode so
that the track voltage is constant.
Varying track voltage will cause
erratic operation of the SC-2.
Note! Note!
Note!

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Installing the SC-2 on your railroad
Powering your SC-2 (continued)
ACC3 ACC4
ACC1 ACC2
Track (Command only) or Auxiliary Power
Power/A
Common/Ground/U
Wall Pack
Connection
2
1
3
Connect switch
here to power from
switch power
Figure 3. Powering the SC-2

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Connecting Lionel switches to the SC-2
Installing the SC-2 on your railroad
Connect three switch wires to the SC- 2 terminals. Begin with the ground
(common) for each switch. Listed below are
ground terminal locations for some popular
Lionel switches. Connect the ground terminal
of each switch to the center screws of each
terminal block on the SC-2.
HOW TO FIND THE
RIGHT POST
If you’re in doubt about which binding post
connects to the outside (ground) rail, check
it with a meter or continuity tester, available
from your local electronics supply store.
• On contemporary Lionel O gauge switches
(6-23010 and 6-23011), ground is terminal
number 2. Refer to Figure 4.
• On postwar 022 and MPC/early LTI
O gauge switches (5132 and 5133), O-31
(14062, 14063) and O-72 (65165, 65166)
ground is the center binding post. Refer to
Figure 5.
• On many O-27 switches, including the
O-42 and O-27 versions sold in the 1950s
(1122 and 1122), and during the modern
era (5121 and 5122e), ground is closest to
the switch motor. See page 10 for special
instructions for using O-27 with Command
control. Refer to Figure 6.
• On super O switches (where two posts are
together and one post is positioned on the
side) ground is the side post.
Each of the SC-2’s ground termi-
nals are independent of all other
ground terminals. You must
connect a ground wire for each
device to the center set screw on that
terminal.
When connecting the left and right terminal
wires, make sure the wire throwing the switch
“out” (curved) connects to the SC-2’s “Switch
Out” terminal (#3). The wire throwing the
switch “through” (straight) should connect to
the SC-2’s “Switch Through” terminal (#1).
To identify which wire controls which switch
function, begin by powering up each switch.
Touch each of the two remaining switch wires
to its ground terminal and note the action
of the switch. Once the functions have been
determined, power to the switch should be
disconnected until the wiring to the SC-2 is
completed.
When a switch is properly connected to the
upper left terminals on the SC-2 and switch
power is on, the SC-2’s green light should
illuminate. This indicates the SC-2 is properly
powered.
Note!
Hint!

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Connecting Lionel switches to the SC-2 (continued)
Installing the SC-2 on your railroad
ACC3 ACC4
ACC1 ACC2
1
2
3ATRACK
AUX.
3
1
2
2
1
3
#1 through (straight)
#2 common
#3 out (curved)
SC-2
You can still control your switches manually. The
manual controller is connected as shown above. No
modification is required to this wiring.
Note
Connect one switch
to these terminals to
power the SC-2 from
switch power
Switch
controller
(optional)
0-31 switch
6-23011
6-23010
Figure 4. Wiring Lionel O gauge switches
ACC3 ACC4
ACC1 ACC2
U
Accessory Power
Fixed Voltage Plug
Switch controller
(optional)
Figure 5. Wiring Lionel O-31 and O-72 gauge switches

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Installing the SC-2 on your railroad
Modifying O-27 switches for use with the SC-2
O
-27 type switches receive their power from
variable track voltage. In order to operate
this type of switch with the SC-2 controller, you
need to make the following modifications to
allow the switch to operate from a fixed voltage
power source.
First, take the top cover off of the switch
by removing the screw. This will expose the
double coils. Next, find the two wires that are
located at the center of the two coils. These
wires are contained inside one piece of insula-
tion. Gently pull on the insulation to expose
the wires. Now, clip the two wires about 1/2˝
from the coils. Using electrical tape, wrap the
wire ends that come up from the bottom of
the switch. Use the heat from your soldering
iron to remove 1/4˝ of the varnish insulation
from the remaining wires, then twist the wires
together. Using your soldering iron, put a
small amount of solder on the ends of these
wires and solder a jumper wire to them. Wrap
this connection with electrical tape to keep it
from coming in contact with the coil housing.
Before you replace the switch cover, you
may need to cut a notch (using a hobby knife)
for the wire to come through. You may also
route the wire through the holes used to vent
any heat generated by the coils on top of the
cover. Replace the cover on the switch, then
attach the jumper wire to a fixed voltage power
source.
You will need to attach a ground wire from
this separate power source to the outside rail of
your track, or you can attach this ground wire
to the “U” post on the PowerMaster.
Your switches can now be operated using the
SC-2 Controller.
Control Rails
Ground
Coils and Plunger
Clip Wires
Here
Control Rails
Ground
Jumper Wire
(Connect to Fixed Voltage Power Source)
To SC-2
To SC-2
Figure 6. Wiring Lionel O-27 gauge switches