The Quattro2- VCA Video Codec Application (MT303) comes with a USB connection and a pair of RCA jacks. The USB is designed for Voice or Video over IP (VoIP) or can be used for simple playback of your computers media player on a PC or MAC computer. The Quattro2- VCA is supplied with two cables:

* USB to USB - to connect with your computer. * Power supply - You can power the Quattro2 from your computer via the USB connection or with the included power supply with international clips.

Bridging - The Quattro2-VCA will bridge the USB and RCA connections together for a three way call. An example would be if you were on a video call and you wanted to bring in a participant over VoIP or Soft phone that is not able to participate on the video call but would like to contribute to the meeting. You would call him or her via your VoIP connection and the Duet VCA would bridge their audio into the video call.

Custom Sensitivity - The RCA connections provide the send and receive signals for a hardware Video Codec. The three – two position DIP switch next to the RCA jacks allows you to adjust the send level to the codec which varies from system to system, thus optimizing the VCA for use with all systems. Setting it once during installation is usually all that is necessary. Speaker Out - The speaker out jack allows for use with external amplifier and speaker(s).

The MT303 is expandable with the MT304 daisy chain unit.

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