Audio Enhancement Product Manual - Manual (Page 37)

37
Installation
Precautions for Installing the Sensors
Install the infrared sensors in a position that allows them to receive the infrared signals regardless
of the teachers movement around the classroom .
Do not install the sensors in direct sunlight or directly in front of strong lighting fixtures . Even
if the sensor is not in direct sunlight, reflections from sunlight may reduce the effective range
of the sensor . Install the infrared sensor 20 ft . (5 m) away from a window, or as far away as
possible . If installing the sensor more than 20 ft . away does not improve the effective range
of the sensor, installing further away from the windows or using curtains or blinds may be
necessary to protect the sensor from the sun’s rays .
Caution: Possible Interference from Plasma Screens
Plasma screens can generate signals that interfere with IR audio systems . To reduce interference,
choose a plasma display that is equipped with an optical IR filter . If this is not an option, please
install IR sensor with the guidelines on page 38 in mind .
More than
two meters
(6½ ft.)
Floor
Ceiling
Sensor
Coaxial cable
Fix coaxial cable