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  Conference Mike or Table Mike Digital Discussion system

Digital Discussion Systems for Rent

If you hold meetings in halls where acoustics are poor or when halls are resonant or very large, or if your speakers are not loud enough or unclear, then discussion systems are simply a must.

We provide user-friendly digital discussion systems for rent, which cater to a wide range of applications from conventions, board meetings, hotels to state houses. Our digital systems comply with the highest IEC industry standards. They are mobile, and easy to install and operate. They provide excellent sound quality. Some of the important features are chairperson overriding facility, touch screen function and powerful management software. Each central unit can support up to 70 discussion units, and the discussion system can be scaled for up to 200 discussion units through a single cable daisy chain interconnection.

Its anti-corrosive circuit boards, moisture-proof design and dual-shielded cable ensure superior digital audio quality to its users. Up to 5 microphones can be activated simultaneously and speakers queue on First-in-first-out-basis. There are multiple selectable microphone operating modes and also multiple voting types and options. The system provides for easy registration by the delegates through a push-button. The system even supports Automatic camera control.

 
Delegate Unit

The delegate unit is a passive unit that gets its power supply from the central unit. It has a Single-cable daisy chain interconnection. A red light illuminates to indicate that the power is on. There is a push button in the microphone. By pressing this button, the conference participants can switch the microphone on or signal their request to speak.

Some important features of the unit include a Supercardioid electret condenser microphone, Back-lit LCD screen for dynamic status display, Automatic gain control to prevent acoustic feedback and Built-in chip card reader for user identification. The unit has a built-in feature to turn off automatically when no speech is detected for 20 seconds. Its built-in water drainage system shields the circuit board.

Some other specifications include:
  • ABS base dimensions: 150x135x50 mm (LWH)
  • Microphone stem length: 41cm
  • Frequency response: 50Hz-18KHz
  • S/N ratio at 1mV input level: -95dB
  • Optimal pickup range: 10-30cm
  • Sensibility: -46±4dB
 
Chairperson Unit

The chairperson unit is also a passive unit that gets its power supply from the central unit. A red light illuminates to indicate that the unit is powered on. It can be connected to the delegate cable network at any place. This unit enables the chairperson to monitor and control the conference. It has a priority button that is used to override all delegate units.


There is a push button to switch the MIC on or off. Some other key features of the unit include Built-in chip card reader for user identification, Supercardioid electret condenser microphone, Automatic gain control to prevent acoustic feedback and Back-lit LCD screen for dynamic status display. The unit has a built-in feature to turn off automatically when no speech is detected for 20 seconds. Its built-in water drainage system shields the circuit board.

The other specifications are as follows:

  • ABS base dimensions: 150x135x50 mm (LWH)
  • Microphone stem length: 41cm
  • Frequency response: 50Hz-18KHz
  • S/N ratio at 1mV input level: -95dB
  • Optimal pickup range: 10-30cm
  • Sensibility: -46±4dB
 
Central Unit

The central unit comes with a 19” rack mounting case. It is the main power supply unit. It has four line input connectors for connecting upto 25 contribution units each. The master control of the volume and the power level resides here. It has a built-in automatic video matrix switcher, and also a Switch for acoustic feedback prevention. It has 2 pairs of audio outputs for external equipments. The built-in fan units help in ventilation and cooling.

Some other specifications are as follows:
  • Dimensions: 344x434x120 mm (LWH)
  • Max. extension cable length 200 meters
  • Frequency response: 20Hz~18kHz
  • S/N ratio at 1mV input level: -95dB
  • Distortion at 1kHz: < 0.3%
  • RS-232 serial port for control computer
  • RS485 serial port for dome cameras
  • 6 BNC sockets for video signal inputs
  • 2 BNC sockets for video signal outputs
 
Control Unit for Interpretation

The control unit for interpretation gets its power supply from the central control unit. It has 4 6-point sockets to connect central control unit and 4 12-point sockets to connect 4 line delegate units. The unit can connect upto 5 interpreter units. It has 6 different audio channels for 6 language interpretations. Each channel has a volume control. The input of the floor signal and the output of the interpreted signal can take place simultaneously. The unit comes with a standard rack mountable case for easy set-up.
 
   
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