Vca Interface - Connection And Operation - Phoenix Quattro User Manual

7. VCA Interface - Connection and Operation

The VCA interface is an Analog In / Analog out interface. It can
be utilized to connect the Quattro to a Video Set-top Codec, a
computer's sound card or a digital phone headset jack.
The black RCA jack on the right should be connected to your VC
system's (or sound card's) output (the signal that goes to the
loudspeakers. The red RCA jack on the left is the Quattro's
output and it should be connected to your VC system's (or sound card's) Input.
The VCA interface has a sensitivity control switch which offers 8 different settings of output signal
level. This allows the user to tune the Quattro's output level and optimize it to the specific VC (or
sound card) input level specifications. The output levels for the different switch settings are
detailed in the following table (note: the orientation of the switches in the diagram represents the
way these switches appear when the Quattro is sitting on the table):
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