Owner's Manual
Figure 1.
a Hex Nut (supplied)
b Washer (supplied)
c Mounting Surface
d
IR
Cable
(10
feet supplied)
e MS120 Miniature
IR
Sensor (supplied)
f MS120 Lens Bezel (supplied)
We
do
not
recommend
this.
The
cable
connected
to
the
MS120
can
act
as
an
"antenna" for
electrical
noise.
Locating
the
MS120
cable
too
close
to
a
light
dimmer
or
switch
may
interfere
with
the
MS120.
If
you
must
locate
the
MS120
near
electrical
devices,
install
it
in
a
separate
metal
electrical
box,
ground
the
box
to
the
electrical
system
ground,
and
route
the
MS120
cable
several
feet
away
from
all
electrical
wiring.
Avoiding
Optical
Feedback
If
installing
the
MS120
in
the
same
room
as
an
IR
flasher,
it
is
possible
for
the
flasher's
IR
output
to
be
picked-up
by
the
MS120.
This
effect,
known
as
an
optical
feedback
loop,
can
cause
erratic
operation.
Optical
feedback
is
similar
to
acoustical
feedback:
the
howling
or
whistling
sound
heard
in
a
P.A.
system
when
the
microphone
is
too
close
to
the
speaker.
To
avoid
optical
feedback:
1.
Re-position
the
flasher(s)
and/or
the
sensor.
2.
Use
Niles
MF1
or
MF2
flashers
and
cover
them
with
the
supplied
IR
blockers.
Using
the
MS120
with
a
Niles
Multilone
Keypad
with
an
IR-Sensor
Connection
The
MS120
is
fully
compatible
with
any
Niles
MultiZone
Keypad
with
an
IR-Sensor
connection,
follow
the
wiring
instructions
in
Figure
2.
For
specific
information
see
your
Niles
MultiZone
Keypad
manual.
5
Red:
12V+
Black:
Ground
Yellow:
Data
White
= Status
'111111111//II,I,IIIII/II!!,';IIIIIIIIIII!'/III/I!,'I/1I/!/I,'!/II
",,,
0,
, I,
I""
",
..
Figure
2.
Wiring legend
6