Viewing Event Examples; Splitting And Combining Presets Triggered From A Logic Input - Polycom SoundStructure C16 Design Manual

When the logic output is set to 1, current flows and the LED turns on. When the logic output is set to 0,
current does not flow and the LED turns off.
External LED Remote Control
Viewing the Relay Example
The following figure is an example of how to drive a 5V relay. When the logic output (Pin 2 in this example)
is set to 1, current flows from Pin 2 to ground and that current flow energizes the relay coil and close the
relay contact. When the logic output is set 0, current stops flowing to the relay coil, causing the relay contact
to open. A diode is recommended to be placed in parallel with the relay to provide a path for the discharge
current of the magnetic coil of the relay. This current discharges over a very short period of time and a diode
capable of handling a large amount of surge current such as the 1N4001 is recommended and is available
from several manufacturers. This example circuit uses an Omron G5CA relay and the coil resistance is 125
ohms. Because of this coil resistance, an additional series resistor is not required to limit the current from
the 5 V supply to less than 500 mA in this example.
Driving a 5V Relay

Viewing Event Examples

This section provides several examples of how to use events to customize a SoundStructure design.

Splitting and Combining Presets Triggered from a Logic Input

In this example, two presets are selected in the SoundStructure device, "Combine" and "Split". The goal of
this application is to have a logic input select which preset is executed based on the state of the logic switch.
Polycom, Inc. 253