Lionel 151 SEMAPHORE - Page 3

TYPE R TRANSFORMER
No. 151 5 A
SEMAPHORE &).
Fiqure 3—Connections for a No. 151 Semaphore. The Semaphore is Connected to a Pair of
Constant Voltage Terminals While the Track is Connected to Variable Voltage Terminals.
* ‘
CONNECTIONS FOR NO. 151 SEMAPHORE
To connect the No. 151 Semaphore follow the wiring in Figure 3. The
middle
post
of
the
Semaphore
is
connected
to
one
of
the
transformer,
binding
posts.
The
other
transformer
post
is
connected
to
No.
3
Contactor
clip.
The
same
No.
3
clip
is
connected
to
that
Semaphore
post
which
will
cause
the
Semaphore
lamp
to
light.
The
last
Semaphore
post
is
now
connected
to
Contactor
clip
No.
2.
When
correctly
adjusted,
according
to
procedure
described
before,
the
Semaphore
arm
should
lower
when
the
train
is
passing
over
the
Contactor.
The
Semaphore
light,
however,
will
remain
on
all
the
time,
shining
either
through
the
red
or
green
lens
depending
on
the
position
of
the
Semaphore
arm.
If
more
convenient
in
your
layout,
the
lamp
terminal
of
the
Semaphore:
may
be
connected
‘directly
to
the
transformer
instead
of
the
No.
3
Contactor
clip.
oe
CONNECTIONS
FOR
NO.
153
BLOCK
SIGNAL
To
operate
the
No.
153
Block
Signal,
all
three
Contactor
clips
are
con-
nected
so
that
the
Contactor
can
serve
as
a
“single
pole,
double
throw”
switch.
The
middle
terminal
of
the
Block
Signal
is
connected
to
one
of
a
pair
of
transformer
binding
posts.
The
other
transformer
binding
post
is.
connected
to
No.
3
clip
of
the
Contactor.
The
No.
1
and
No.
2
Contactor
clips
are
now
connected
to
the
outside
posts
of
the
Block
Signal
as
shown
in
Figure
4.
With
the
train
stopped
on
track
some
distance
from
the
contactor,
turn
adjustment
screw
down
as
far
as
it
will
go.
If
green
light
in
the
Block
Signal
is
on,
no~
further
adjustment
is
required.
If
red
light
is
on,
turn
the
adjustment
nut
up
until
the
light
just
changes
to
green.
When
the
No.
153
Block
Signal
is
properly
connected
and
adjusted
its
green
light
will
change
to
red
as
the
train
goes
over
the
Contactor
and
then
back
to
green
when
the
train
has
passed.
fa)
Page v
¥