Applications; Audio Output - Monacor IRS-200R Mode D'emploi

other purposes than originally intended, if they
are not correctly connected or operated, or if they
are not repaired in an expert way.
If the units are to be put out of operation
definitively, take them to a local recycling
plant for a disposal which is not harmful to
the environment.

3 Applications

In combination with the IR transmitter microphone
IRS-200HT (channel A) and/or the IR transmitter
microphone IRS-202HT (channel B) and one or two
infrared sensors IRS-200IR
2-channel infrared receiver provides a wireless
audio transmission system, suited e. g. for applica-
tions in schools or conference centres. As IR sig-
nals will not go through walls, an interference-free
parallel operation of several systems in different
rooms is ensured. The system is licence-free. Its
range is approx. 15 – 20 m.
4 Setting Up
For an optimum IR transmission, position the sys-
tem components in such a way that there are no
obstacles between the microphone IRS-2..HT used
and the IR sensor(s) IRS-200IR during operation.
However, depending on local conditions, there may
be a transmission by reflections of the IR signals
(e. g. on walls) even if there are obstacles between
the transmitter and the sensor. We therefore
strongly recommend to perform a trial operation
before final placement of the system components.
5 Connection of the receiver
5.1 Sensor(s) IRS-200IR
For operation, the connection of one IR sensor
IRS-200IR is required as a minimum. To extend the
transmission range, a second IRS-200IR may be
connected (reception range of the sensor and
examples for installation
nect the jack (9) of the sensor via the 10 m cable
provided to one of the two jacks SENSOR (19) of
the receiver, then secure the connectors with the
cap nuts.
When you have found the optimum position for
the sensor after performing a trial operation, mount
it on the wall or ceiling by means of its bracket (8)
via four screws. Release the locking screws (10) of
the bracket, adjust the inclination angle of the sen-
sor, then fasten the screws again.
connected, this
pages 32 – 33). Con-

5.2 Audio output

Connect the 6.3 mm jack AF OUT (20) to an unbal-
anced microphone input or line input of the follow-
ing amplifier or mixer. A matching connection cable
is provided. Adjust the switch LOW/ HI (21) for the
output level depending on the type of connection:
– For connection to a microphone input set the
switch to "LOW".
– For connection to a line input set the switch to
"HI". If the level for the line input is still too high
even if the volume is reduced, select the position
"LOW".
5.3 Power supply
Connect the power supply unit provided to the
power supply jack (22) and to a mains socket
(230 V~ / 50 Hz).
6 Operation of the Microphones
6.1 Power supply / settings
1) Push the latch (7) of the battery compartment
cover towards the microphone head to unlock
the cover, then remove the cover.
2) Two small switches are provided in the battery
compartment; to set the switches, use a narrow
object (e. g. screwdriver):
– Switch CHANNEL (5) to select the transmis-
sion channel: Model IRS-200HT is factory-set
to channel A; model IRS-202HT to channel B.
To change the channel, set the switch accord-
ingly.
– Switch POWER (6) to select the transmission
power: In the position HI a range of up to 20 m
is reached; in the position LOW a range of up
to 15 m. With a higher transmission power,
however, the battery life will decrease due to
faster discharge.
3) Insert two 1.5 V batteries or rechargeable 1.2 V
NiMH batteries of size AA into the battery com-
partment. Always observe the correct polarity
( marking inside the compartment). Replace
the cover.
If the microphone is not in use for a longer
period of time, remove the batteries to prevent
damage due to battery leakage.
Used batteries must not be placed in
the household waste; always take them
to a special waste disposal, e. g. collec-
tion container at your retailer.
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