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5

6

Installation & Operation

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Operation & Specifications

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General Notes

• 

The 

Master Volume

 controls the overall volume of the 

system. If the master volume is not up, then no sound will 
be output from the system speaker outputs.

• 

Because the PA-IRSYS wireless microphones use infrared  
signals, they are not suitable for outdoor use since direct  
 sunlight can interfere with the transmission.

• 

Do not cover the infrared transmitter head on either the 
handheld  microphone  or  the  belt  pack  microphone  as 
the  transmission  to  the  ceiling  sensors  requires  line-of-
sight for clear noise-free operation.

Troubleshooting

There is no sound output.

• Is the AC cord connected the Control Panel and 
  to the power outlet?
• Is the power switch on and the power LED lit?
• If using the beltpack transmitter:
 

•  Is the power on the beltpack on and the 

   

   power LED on the beltpack is lit?

 

 

• If not, try new batteries.

 

•  Is the Teacher Mic Signal Indicator lit 

 

   on the Control Panel?

 

 

• If not, make sure the ceiling sensors  

 

 

   are picking up the signal from the 

 

 

   beltpack and that the IR transmission 

                                              is not being blocked.
 

•  Is the volume control on the beltpack up?

 

•  Is the Teacher Mic volume control up?

 

•  Is the Master volume control up?

 

•  Are the speakers connected to the speaker outputs?

There is feedback from the speakers.

 

• Try decreasing the volume of the 

 

  microphone, master volume control, etc. 

  

  until there is no feedback.

 

• Try adjusting the treble and base controls

 

  to reduce feedback.

There is noise or hum from the speakers.

• Check the installation:
 

•  Ensure that cables are as short as possible 

 

   and not run next to noise-generating cables

 

   or equipment.

 

•  Ensure that power cables of different 

 

   equipment  use the same power outlet 

 

   to avoid ground loops.

System Specification

Storage Temperature:  

-25

o

C – 65

o

C

Operational Temperature: 

0

o

C – 45

o

C

Power Supply: 

 

Integrated 100-240VAC  

 

 

 

50/60Hz switching    

 

 

 

power supply

Amplifier

Power:  

 

 

30W RMS

Frequency Response:  

(+/- 3dB): 20Hz – 20kHz

THD:  

 

 

<1%

Infrared Microphones

Belt Pack Microphone 
Carrier Frequency:   

2.35MHz

Handheld Microphone 
Carrier Frequency:   

2.85MHz 

Microphone Recharging Time :  Approx. 8 hours  

 

(

both handheld and beltpack

Microphone Operational Time:   Approx. 5-6 hours
(

both handheld and beltpack

continuous usage

Max Range:  

 

40 feet

 

 

 

(

From microphone to 

 

 

 

ceiling receiver

)

If the above section has not fully answered your 
question, visit the FAQ section of our website 

califone.com/faqs 

or contact our Customer Service 

Department directly via email (

warranty@califone.com

or by phone at 

800-722-0500 / 818-407-2400.

stereo signals are automatically mixed down to a mono 
signal  for  playback  through  the  system.  The  volume 
for  the  inputs  can  be  controlled  by  the 

Aux Volume 

Controls

 (9,10).

6. 

Turn all the Volume Controls to their minimum position 
(approximately 7 o’clock).  The 

Treble 

and

 Bass

 (11, 12) 

controls should set to 12 o’clock (straight up).

7. 

Turn  on  the 

Power  Switch

  (2)  and  the  power  LED 

Indicator will light.

8. 

The  PA-IRSYS  should  now  be  operational. The 

Treble

 

(11)  and 

Bass

  (12)  Control  knobs  can  be  adjusted  to 

improve quality/intelligibility of the audio through the 
system.

Connecting the System for Teleconferencing

The Califone PA-IRSYS is specifically designed to work with 
PC/MAC  teleconference  systems  such  as  Microsoft® 
Netmeeting.
1. 

When  using  a  computer  teleconference  system  plug 
the 

Mic Pre-out

 (25) to the line input on the computer.

2. 

Connect the PC line/headphone output to the 

Aux 1 

(22)

 

or

 Aux 2 Input

 (24) on the Control Panel.

3. 

By connecting the system in this configuration, all of 
the microphone signals from the PA-IRSYS (the wireless 
teacher  &  student  mics,  and  connected  wired  mics  1 
and 2) are mixed and sent into the PC and sent to the 
remote teleconference site. The microphone signals will 
still also come out of the PA-IRSYS speakers along with 
the audio from the remote teleconference site.

4. 

You can adjust the 

Master Volume

 (13) and 

Aux Input 

Volume 

(9, 10) to get an appropriate loudness and mix 

of the signals.  

Note

: You may need to adjust volume settings of the 

microphones as appropriate to get a good level signal into  
the computer. You may also need to adjust sound settings  
in the application to use the appropriate inputs/outputs  
for the audio on your computer.

Tip:

  Do  not  connect  the  Mic  Pre-out  to  the  microphone 

input    of the computer as you may get a distorted sound.

Connecting  the  System  to  a  25  /  70  /  100V 

Paging System

The  output  of  a  25  /  70  /  100  V  Paging  System  may  be  
connected to the PA-IRSYS paging input for non-emergency 
paging.
1. 

To do this, first wire the paging system output to the  
included 2-pin phoenix connector. 

2. 

Then plug the connector into the paging input jack.

3. 

Adjust the sensitivity switch to the appropriate setting.

4. 

Adjust  the  paging  input  volume  to  the  desired  setting. 
Note that the Master Volume must be also turned up for 
the signal from the paging system to be heard through the 
PA-IRSYS speakers. Due to this, the PA-IRSYS should not be 
relied on for emergency paging or announcements.

Operating the Infrared Belt Pack 

and Handheld Microphones

Notes

:

• 

The volume adjustments for the two wireless mics, the 
two auxiliary inputs, and the Master System controls 
described in the following section are found on the front 
facing panel.

• 

The 

Beltpack Transmitter

 comes with a lanyard that can 

be slipped over the belt pack and hung around the neck.

1. 

Insert two 1.2V AA rechargeable batteries into the infrared 

Beltpack Battery Compartment

 (9), paying attention to the 

positive and negative poles. Then close the battery cover

2. 

Turn on the 

Microphone Power Switch

 (1) and the power 

LED indicator will light, indicating that transmitter is ready 
to use. A couple seconds later the appropriate 

IR Signal LED 

(5, 6)  will light red, meaning the receiver has good signal 
reception from that particular mic.

3. 

If using the beltpack transmitter, adjust the 

Volume Control 

(7) on the side of the beltpack. Also, adjust the appropriate 

Wireless Mic Volume Control

 (7, 8) on the panel. The 

Master 

Volume 

will also need to be adjusted to an appropriate level

4. 

At this point, the microphones should be heard through 
the system.

5. 

Both of the wireless microphones can be used throughout 
a typical day on a single charge and should be recharged  
overnight while not in use (without taking out batteries). 
Both  the 

Beltpack

  and 

Handheld  Mics

  have 

Built-in 

Chargers

 (14, 17) and are to be placed into their respective 

charging stations and charged overnight.

6. 

The  LEDs  on  the 

Handheld

  and 

Beltpack  Microphone 

chargers  indicate  when  the  system  is  charging  the 
microphones and when charging is complete. The LEDs  
will light up red when charging and will turn green once 
the batteries are fully recharged.

califone_PA-IRSYS_manual_Rev2.indd   8-9

3/12/2010   12:40:06 PM

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