Chiayo IRX2 Bedienungsanleitung
CHIAYO ELECTRONICS CO., LTD.
Operation manual
IRX2
Infrared Wall-Mount Receiver
Amplifier
1
IRX2 Infrared Wall-Mount Receiver Amplifier
Cautions
1. Do not cover the infrared emitter area of the wireless transmitter or the surface of the infrared
sensor.
2. Do not use the transmitter too close to speakers to prevent feedback.
3. Do not install near heat source or in a place subject to direct sunlight, excessive dust,
mechanical vibration or shock.
4. Do not use two transmitters on one channel at same time because it will cause abnormal
operation.
5. Since this system uses infrared light carrier to transmit audio signals, it is not suitable for
installation in rooms with dark ceilings and walls.
In the box
IRX2 receiver amplifier
1 or 2 handheld or pendant
transmitter (optional)
Switching power supply
(plug varies from country to country)
4P PHOENIX x1pc
3P PHOENIX x2pcs
operation manual
** Note: The above specifications are subject to change without prior notice.
2
Instruction
Parts and functions of receiver amplifier
1. External sensor inputs
2. MIC volume control
3. MIC input (3P PHOENIX)
4. AUX input (R/L)
5. LINE output (R/L)
6. Audio output for assistive listening device
7. Audio input for EMERGENCY OVERRIDE
8. EMERGENCY OVERRIDE voltage selector
9. EMERGENCY OVERRIDE sensitivity control
10.EMERGENCY OVERRIDE volume control
11.Main speaker output (4P PHOENIX)
12.DC output (12V 1A)
13.DC input
14.IR MIC②volume control
15.IR MIC①volume control
16.AUX input volume control (R/L)
17.LINE output volume control (R/L)
18.Volume control of assistive listening device
19.Tone controls: bass, middle and treble
20.IR MIC②signal indicator
21.IR MIC①signal indicator
22.Audio indicator
23.Power indicator
24.Power switch
25.Lock
3
IRX2 Infrared Wall-Mount Receiver Amplifier
Operating the system
1. First, find the optimal location with the widest view of the room to install the IR amplifier.
2. Connect power adaptor into the power outlet, and then connect the DC plug of adaptor to the
amplifier.
3. Connect the speakers to the amplifier (4Ω min). See tips for multiple speakers.
4. Turn on the amplifier.
5. Turn on the transmitter and the IR signal indicator(s) will glow.
6. Adjust the volume control of amplifier to comfortable level.
TIP: Reduce the treble slightly if feedback/howling, or operate transmitter further from speakers.
Installing external sensor
IS-20A (wall/ceiling-mount type)
1. Infrared optimal coverage: 90°
2. Find the best position with wide view of the room.
3. Mount the sensor on the FIXING HOLDER on the wall or ceiling.
4. The LED of infrared sensor will glow red when power on.
wall mounting ceiling mounting
4
Instruction
IS-30A (ceiling-mount type)
Ordinary space such as a classroom
larger space such as a fitness center
1.Locate the IS-30A sensor in the center of
the ceiling, as illustrated below
2.Connect the sensor cable to the receiver
amplifier.
3.Turn on the amplifier and ready to use.
1.Locate two or three IS-30A sensors on the
suggested positions on the cater-corner of
the ceiling, as illustrated below.
2.Connect the sensor cable to the receiver
amplifier.
3.Turn on the amplifier and ready to use.
Other sensor installing recommendations
One IS-20A wall sensor＋one IS-30A ceiling sensor
Ex: 10x10 sqm classroom
2~2.5m
3~3.5m
←IRX2
←IRX2
IS-30A
IS-20A
IS-30A
IS-20A
5
IRX2 Infrared Wall-Mount Receiver Amplifier
Two IS-20A wall sensors
Ex: 10x10 sqm classroom
2~2.5m
3~3.5m
←IRX2
←IRX2
←IRX2
6
Instruction
Connecting central amplifier unit for public broadcasting
When IRX2 receives public broadcasting audio signal from the central amplifier unit into the
emergency override (EO) jack, all audios will be muted except the EO audio.
1 Plug and tighten the EO cables (x2) into the 3P PHOENIX connector’s jacks as illustrated
below. Then plug the connector to the 3P PHOENIX jack.
2 Switching voltage level of EO input from the central amplifier unit.
If the EO input voltage is 100V, please switch to 100V. (LEFT )
If the EO input is LINE level, please switch to LINE. (RIGHT )
3 Adjust the sensitivity level for activation with EO SENS control knob.
The output level of central amplifier unit varies on brands and models. The activation level
can be adjusted after connecting to IRX2 receiver amplifier. Please select a proper
sensitivity level that can activate EO so that paging call or other announcement can be
broadcasted via IRX2.
Important!! High sensitivity may result in noise into IRX2 too. Please set the EO SENS
to a level that is just enough to make EO broadcast work.
4 The public broadcasting volume can be adjusted by EO LEVEL control knob.
100V LINE
LEVEL
7
IRX2 Infrared Wall-Mount Receiver Amplifier
Using the wired microphone
1 Plug and tighten the XLR microphone outreach plate cables (x3) into the 3P PHOENIX
connector’s jacks in accordance with the polarity. Then plug the connector to the 3P
PHOENIX jack.
※Gfor grounding, COM for positive, HOT for negative
2 Minimize the microphone volume MIC VOL before power on. Then adjust to a proper level
on demand after power on.
3 Bass, middle and treble tone levels can be adjusted individually.
Tone controls
12 3
8
Instruction
Music audio input –Projector, DVD player
1 Plug the audio cable with RCA R/L plugs to the AUX IN 1-3’s RCA R/L jacks.
2 Minimize the aux input volume AUX IN 1-3 before power on. Then adjust to a proper level
on demand after power on.
3 Bass, middle and treble tone levels can be adjusted individually.
Tone controls
9
IRX2 Infrared Wall-Mount Receiver Amplifier
Connecting L/R stereo speakers
Plug the external speaker’s audio cable to the 4P PHOENIX jacks of MAIN SPEAKER OUT.
The speaker’s impedance must be 4Ω or more. When using 4P PHOENIX for connection,
please accord with the positive (+) and negative (-) polarities.
Speaker connections
2 speakers
8 speakers
4 speakers
+
+
-
-
8Ω
8Ω
LS1
8Ω
LS2
8Ω
1
2
3
4
8Ω
8Ω
+
+
+
+
+
+
+
+
-
-
-
-
-
-
-
-
1
2
3
4
LS1
8Ω
LS2
8Ω
LS3
8Ω
LS4
8Ω
LS5
8Ω
LS6
8Ω
LS7
8Ω
LS8
8Ω
+
+
+
+
-
-
-
-
4Ω
4Ω
1
2
3
4
LS1
8Ω
LS2
8Ω
LS3
8Ω
LS4
8Ω
R
L
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