QSC KW181, Руководство пользователя

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19
EN
Remote Gain Attenuator
A 3-pin “Euro” connector is provided to attenuate the volume of the KW Series loudspeaker
or put the system into standby from a remote location. The Remote Gain connector can
only attenuate the output signal level below the level set by the Channel A and Channel B
Gain knobs.
By varying the voltage on (pin 2) between (pin 1) and (pin 3, ground), the
volume can be linearly controlled. The voltage on can be created by using a potentiometer
or provided from an external source. Many KW Series systems can be controlled from a single
potentiometer by connecting the pins of multiple KW Series speakers together.
A relay or manual connection can be made between (pin 2) and (pin 3, ground) to
effectively mute the output and put the KW Series system into standby mode after 5 minutes.
CAUTION: Do not put more than +5V or less than ground on (pin 2), or damage may
occur. Do not c5V (pin 1) directly to (pin 3, ground).
Schematics of Proper Wiring for Remote Gain Attenuator
Remote Gain Attenuator
When using a single potentiometer
for one loudspeaker.
When using a single potentiometer
for multiple loudspeaker.
Wiring to the 3 pin “Euro” connector.