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AEV ITB302 - dual digital telephone hybrid  

   AEV Broadcast Srl  via della Tecnica 33, 40050 Argelato  (BO) ITALY 

www.aev.eu

 - mail : 

[email protected]

  

3

The equipment is to be used by people capable of operating it in a trouble-free manner and 

it 

is assumed that they are aware of the following safety rules. 

• Keep this manual with the utmost care and close at hand so that it can be consulted 
whenever needed 
• After unpacking the equipment, check it for condition. 
• Avoid banging the equipment. 
• The packing material (plastic bags, polystyrene, nails, etc.) must never be left within the 
reach of the children, as 

these items are potential sources of danger

.  

• Do not use the equipment in places where the temperature is not within the recommended 
range, as specified by the manufacturer. 
• Before connecting the equipment, make sure the nameplate specifications correspond to the 
mains electricity supply (the nameplate is located on the equipment enclosure).  
• Do not remove the sticker from the equipment as it contains important specifications and the 
relevant serial number. 
• To join the equipment to the mains supply, use the power cord purchased with the 
equipment. 
• The equipment must be used only for the purpose it was designed for. 
• Abuse or misuse of the equipment is 

extremely dangerous 

for people, pets and property. 

The manufacturer declines all responsibility for damage and injury resulting from 

improper 

use 

and 

mishandling

• Certain basic safety rules must be observed when using electrical equipment, in particular: 
- Never touch the equipment with wet and/or damp hands or other parts of the body. 
- Keep the equipment away from drops of water or sprinkling systems. 
- Never use the equipment near high heat sources or explosive material. 
- Do not introduce any extraneous matter into the equipment. 
- Do not allow children or untrained people to use the equipment. 
• Before cleaning or servicing the equipment outside, disconnect it from the supply and wait at 
least 2 seconds before working on it, as recommended by current safety regulations. 
• In the event of faults and/or improper operation, turn off the equipment, shut off the 
electrical power and call your dealer. 
covers/guards or circuit boards are to be removed. 
• Blown fuses inside the power supply indicate that there may be a fault in the power supply 
itself. The fuses must be replaced by qualified and authorised persons. It is advisable to call 
your nearest dealer. 
• Call your dealer for any repairs and be certain original spare parts are used. 

Failure to 

observe this rule may adversely affect the safety level of your equipment

• The equipment is to be connected to the mains supply and provided with adequate and 
efficient earth conductors. 
• The electrical wiring must be done in compliance with current electrical codes CEI 64-8 
“Electrical specification for domestic buildings”. 
• When installing, leave a clearance of at least 1 cm around the equipment to allow air to pass 
freely. 

NOTE. This piece of equipment has been manufactured to the highest standards of 
workmanship. It must be used properly and serviced as recommended to ensure 
long-term dependable operation. 

The installation must be done in order to be able to guarantee an easy access to the cable of 
feeding. 
The device of dissection of the equipment is the cable of feeding, so it must be unconnected 
from the equipment every time it is  ecessary to do any type of maintenance. 
 
 
 
 
 
 
 
 

Summary of Contents for ITB 3O2

Page 1: ...AEV ITB302 dual digital telephone hybrid AEV Broadcast Srl via della Tecnica 33 40050 Argelato BO ITALY www aev eu mail info aev eu 1 AEV ITB 3O2 Dual Digital Telephone Hybrid...

Page 2: ...allation is being carried out properly If the problems still cannot be solved call the AEV SERVICE Department for further information If the problem is a minor one we can a telephone call will probabl...

Page 3: ...equipment away from drops of water or sprinkling systems Never use the equipment near high heat sources or explosive material Do not introduce any extraneous matter into the equipment Do not allow ch...

Page 4: ...AEV ITB 302 5 Installation 5 General Description 6 The front panel 6 The rear panel 6 The remote control 7 On telephone lines 8 Connections to mixer and lines 8 Hanging on a line 8 Adjusting levels 8...

Page 5: ...echo canceller that allows to reduce drastically or even eliminate the feedback In this way the diaphony is improved thanks to the use of a DSP Audioconferencing allows simultaneous communication betw...

Page 6: ...which allow adjustment of the receive and send transmission levels each one fitted with a LED level display DOT mode and a trimmer to adjust line levels The following controls are located in the third...

Page 7: ...ront panel functions of the unit for the sections related to the two lines and to the general one Two buttons are located on the upper part BUZZER ON AUTOLOCK SWI TCH Successively pressed it enables o...

Page 8: ...jecting the 1 KHz test signal with the corresponding button or with a standard signal and calibrate the levels for a near zero reading on the LED meters Conference mode Once the line has been hang on...

Page 9: ...alanced and floating Impedance 600 RX Level 20 0 dBm TX Level 8 dBm Hybrid null 40 dB Full Band on urban telephon line Frequency response 230 3400 Hz Distortion 0 8 4 WIRE SECTION Impedance 600 RX Lev...

Page 10: ...10 Connections SEND 1 GROUND RECEIVE 1 GROUND 2 INPHASE 2 INPHASE 3 RETURN 3 RETURN option INSERT 1 MIC 2 GND 3 IN SIGNAL Insert 4 GND 5 OUT SIGNAL 10 dB Head 6 MIC 7 GND 8 GND 9 OUT SIGNAL 0 dB Inse...

Page 11: ...OUTPUT 9 EXPANDER OUTPUT Remote 4 Hook 2 active low TTL input internal pull up 4K7 16 Meeting 2 active low TTL input internal pull up 4K7 18 Hook 1 active low TTL input internal pull up 4K7 17 Meetin...

Page 12: ...AEV ITB302 dual digital telephone hybrid AEV Broadcast Srl via della Tecnica 33 40050 Argelato BO ITALY www aev eu mail info aev eu 12...

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