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Horizontal Mounting
CRS-IRS IR SENSORS
The CRS Microphones output IR Pulses that are invisible light pulses. Ideally, the IR Sensors should be 'line-of-
sight' to the microphones. The microphones output very strong IR pulses that will reflect off wall, ceiling and hard
floor surfaces and are then 'seen' by the sensors which enhances system performance when a microphone is
moving around a classroom. The IR Sensors should be installed on wall surfaces as high up the wall as possible
(in a normal ceiling room) and one should be installed on each side of the room for best coverage.
1. Attach the Wall-Mount Adaptor to the CRS-IRS as shown in Figure 13.
2. Mount the CRS-IRS as high on the wall as possible, but at least seven feet, so people walking past or
standing in front of the sensor will not block the line-of-sight to the microphones.
3. Pull CRS-IRS Wire to CRS-301-CASE location.
CONNECTIONS
The CRS-301 System requires only a few
simple connections and sets up in minutes.
The only required connections are the IR
Sensors, Speakers and Power Cord.
Connecting an optional audio source such
as a CD/DVD Player, VCR, Computer,
Projector, Cable, Satellite, etc is also simple
using standard RCA-RCA audio patch
cables.
IR Sensors
1. Connect the CRS-IRS IR Sensor
mini plugs to any two of the three
IR Sensor Inputs on the CRS-301-
CASE Top Panel.
Figure 13. IR Sensor Wall Mount Adaptor
Figure 14. Typical CRS System Connections
Figure 15. CRS-301 System Signal Path
12
Vertical Mounting
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