Niles MSU250 Installation & Operation Manual page 7

I
N F R A R E D
Wiring
From every IR Sensor location you must "home-run" a
category 5 cable back to the MSU250. Home run means that
an individual cable is connected between each IR Sensor and
the MSU250 (Figure 4).
Figure 4: Home run the
sensor cable from the
sensor to the MSU250.
S D
A
T
A T
A
T
U
S
IMPORTANT – AVOIDING INTERFERENCE
Avoid locating any of the cables, Sensors, Keypads or the
Main System Unit near any potential sources of Electro-
Magnetic Interference (EMI), such as light dimmers, speed
controls for ceiling fans, electrical ballasts, television sets,
large motors, heaters or air conditioners.
M A I N
Remotely Located
IR Sensors
SENSORS IN
+
G
12
N
V
D
S Y S T E M U N I T
Wire size is expressed
by it's AWG (American
20 AWG wire is physi-
"TECH TIP"
Wire Gauge) num-
ber. The lower the
AWG number, the
larger the wire, i.e.,
cally larger than
22 AWG.
6