35
LEFT (+) rail
LEFT (+) Rail
RIGHT (-) rail
RIGHT (-) Rail
Turnout 1
Turnout 2
Pins 18 and 19 connect togethe.r
Pins 17 and 20 connect togethe.r
Reversing Loops
To turnouts
wired in parallel
switching
opposite.
Hookup:
Attach #3 to the isolated center track section, upper rail as shown. (if incorrect there will be a short circuit)
Attach #4 to the isolated center track section, lower rail as shown. (if incorrect there will be a short circuit)
Attach #5 and #6 to a 12VDC power source. Polarity is not important. See power page for more info
Attach #15 and #16 to the turnouts wired in parallel. Turnouts should switch opposite so the train
follows the arrows as shown.
Jumper #18 to #19 and attach a wire to the negative power source
Jumper #17 to #20 and attach a wire to the positive power source.
Attach transformer TRACK outputs of transformer to track as shown. Each loop is isolated and hard wired for a certain
direction. Make sure the polarity and directions of the trains are as shown. For large scale trains in nautical terms,
“
PORT IS POSITIVE
”.
For LGB style trains the left rail is always POSITIVE while the right rail is NEGATIVE.
Notice that this is reversed for
trains following NMRA standards such as HO, N, etc. and the trains will go the opposite direction as the arrows indicate.
If the trains do not follow the directions as shown by the arrows then switch the transformer direction.
Running the train backwards will cause a short circuit!! The protection diode will prevent this.
Notice that all red wires connect together and all blue wires
Train DC power
Blue -
Red +
RRConcepts.com
1
2
3
4
5
6
20
19
18
17
16
15
7
11
8
12
9
13
14
Parts List
YardMaster 1
Track Isolators 8
Train Sensor 2
Train magnet 1
Protection diode 1
Continued on next page =>
Center section
Train Directions
Track power connections only
In a Nutshell-
The loops are hard-wired
to the transformer and the
center section reverses
polarity when the train is
in the loops.
Switch direction if nothing happens.
R
ig
ht r
ail w
ire
Left Rail wire
3
ni
P
li
a
R
r
e
p
p
U
n
oit
c
e
S
r
et
n
e
C
4
ni
P l
i
a
R
r
e
w
o
L
n
oit
c
e
S
r
et
n
e
C
5 & 6 to DC track
power
OR
12V wall wart
(No Polarity)
at least
2500ma to
fire LGB style
turnouts.
(2.5 AMPS)
