III. WCP-2 Rotary BCD Switch Control, Connections

Non-QSControl.net applications

The WCP-1 can be used for non-QSControl.net analog applications, such as variable passive signal attenuation or a variable voltage divider (see Figure 5). 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.

To mount a resistor in R1 or R2, first cut the printed circuit board trace at the desired location (see Figure 6). Then insert the resistor and solder it into place, and trim any excess leads.

Connections

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.

Cut here to insert resistor R2

Wiper 10K

CCW

Cut here to insert

resistor R1

CCW

Figure 5. WCP-1 schematic

Cut this trace to add R1.

Cut this trace to add R2.

Figure 6. Location of R1 and R2.

III. WCP-2 ROTARY BCD SWITCH CONTROL

The WCP-2 uses a six-position binary-coded decimal rotary switch. It connects to two (up to four usable positions) or three (up to six usable positions) OmniPorts on the QSControl.net unit. The OmniPorts must be configured for binary use in the VenueManager application. It is ideal for such functions as selecting signal sources, selecting presets, and routing signals. The truth table is at right. For reliability of interfacing with the OmniPorts, there is no “0” position where all outputs are open.

Figures 7 and 8 depict the connection of a WCP-2 to an OmniPort.

Position	Out 1	Out 2	Out 3	Out 4
▼	Out 1	Out 2	Out 3	Out 4
▼
1	Closed	Open	Open	Open

2	Open	Closed	Open	Open

3	Closed	Closed	Open	Open

4	Open	Open	Closed	Open

5	Closed	Open	Closed	Open

6	Open	Closed	Closed	Open

White/orange

White/blue

Orange

Green

White/green

White/brown

Figure 7. Connecting via network cable.

Figure 8. Connecting via wires.

QSControl.net™ Wall Control Plate Accessories Installation Guide Rev. B