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Revolabs Solo™ Executive System Mute Function Switch
In certain circumstances it is preferable to use the muting capabilities in a DSP based automated
microphone mixer instead of the Revolabs Solo™ Executive Charger Base system mute. This is the
case when the mixer is providing acoustic echo cancellation and needs a continuous signal to
maintain a near-end audio reference. The two position System Mute switch located on the back
panel controls how the Base Station handles the audio output for muted channels.
Position 1 (left side - default): Base Station completely shuts off audio out of each channel that is in
the mute state.
Position 2 (right side): Base Station leaves audio output of muted channel at the same level and
signals the appropriate “mute out” pin on DB25 connector for line muting on external hardware (see
DB25 below).
Note:
The Power Switch must be recycled (off/on) for the status change to take effect.
Warning:
The Executive system will not mute when the switch is in Position 2 (right side)
.
Neither the microphone MUTE button, nor the System Mute button on the Charger Base will mute
audio. Muting is only controlled by the third party mixer.
DB25 Control Port
In connection with the System Mute switch, the DB25 Control Port allows the use of third party
control systems using parallel port IO (active low, open collector). The pin-out status functions
shown below can be used to provide system muting operations via third party products. The System
Mute switch should be pushed all the way to the right for this feature to operate. The
MUTE OUT
indicators are used to determine muted channels and the
SYS MUTE IN
mutes all channels by using a
programmable muting macro in the control device.
DB25 Connector Pin Function
Pin 1
Mute – Channel 1 output
Pin 2
System Mute – Input
Pin 3
Mute – Channel 2 output
Pin 5
Mute – Channel 3 output
Pin 7
Mute – Channel 4 output
Pin 9
Mute – Channel 5 output
Pin 11
Mute – Channel 6 output
Pin 13
Mute – Channel 7 output
Pin 15
Mute – Channel 8 output
Pin 25
Ground
Pin All Others
NA
Please see the operating manual for the third party control device for more information on setup and
programming.
