QSC WCP-1

The WCP-1 is a wall control plate accessories for QSControl.net network audio system components, such as Basis, RAVE, and DSP products. It allows an installer to create simple, non-computer user interfaces for these products in sound systems. As a result, end users don’t need to learn the QSControl.net software or anything technical about the system to adjust volume, select audio sources, choose presets or snapshots, or other control functions.

The WCP accessories connect to one or more of the unit’s OmniPort inputs, which accept both analog control input via variable DC voltage or variable resistance and digital control input via TTL-type logic.

The WCP accessories provide two ways to connect to the QSControl.net unit: an RJ-45 jack, for use with Cat 5 or Cat 6 network cable, or a screw terminal strip for use with individual wires.

The control element of the WCP-1 is a 10 kOhm linear taper potentiometer with 11 detents marked 0 (fully counterclockwise) to 10 (clockwise).  It connects to any OmniPort on the QSControl.net unit and can be wired so that maximum resistance is at full clockwise or at full counterclockwise.

The WCP-1 can be used for non-QSControl.net analog applications, such as variable passive signal attenuation or a variable voltage divider.  The WCP-1 has two circuit board locations where you can mount resistors to adjust the full clockwise and/or counterclockwise values of the resistances and thereby change the range of attenuation or voltage variation from minimum to maximum.  A resistor in position R1 will add that amount of resistance to the fully counterclockwise position, while a resistor at R2 will add resistance to the fully clockwise position.

For typical control voltage and signal attenuation applications, the CW terminal would serve as the input; the wiper terminal, as the output; and the CCW terminal, as the common.