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Minimum Input Gain, if it is programmed for less attenuation than "Off"), and +5VDC corresponds to 0dB. In addition
to analog control, this mode can be used to perform input "muting" using a simple toggle switch. To mute input(s),
simply connect the toggle switch to connect the programmable input to ground (GND pin). The screen shown below
indicates that the function of programmable input 1 is analog input control of inputs 1, 2, 8, and Line 1. Notice how
multiple inputs may be controlled by a single programmable input.
Increase In 1dB / Decrease In 1dB -
Allows one or more input gains to be
controlled by a contact closure on a
programmable input pin. Increase and
Decrease input gain control goes from
a maximum of 0dB gain to a minimum
of 30dB attenuation, plus "Off". The
gain change resolution is 1dB. In the
case of Increase In 1dB, each contact
closure will increment the input(s) gain
by 1dB until 0dB is reached. Decrease
In 1dB will decrement the input(s)
gains by 1dB until either "Off" or Rear
Panel Minimum Input Gain is reached.
If the contact closure is pushed and
held, it will continue to increment or
decrement until it is released or the gain reaches its high or low limit. The screen shown below indicates that the
function of programmable input 1 is Increase In 1dB control of inputs 1, 2, 8, and Line 1.
Analog Out Control - Allows one or
more output gains to be controlled by
an analog voltage on a programmable
input pin. Analog output gain control
goes from a maximum of 0dB gain to a
minimum of 30dB attenuation, plus
"Off". The gain change resolution is
1dB. The analog out mode is ideal for
using a pot (or some other source of
analog voltage) to control output gain.
The valid voltage range in the analog
output mode is 0VDC to 5VDC. 0VDC
corresponds to "Off" (or Rear Panel
Minimum Output Gain, if it is pro-
grammed for less attenuation than
"Off"), and +5VDC corresponds to 0dB.
In addition to analog control, this mode
can be used to perform output "muting"
using a simple toggle switch. To mute
output(s), simply connect the toggle
switch to connect the programmable
input to ground (GND pin). The screen
shown below indicates that the function
of programmable input 1 is analog
output control of outputs 1 and 3
simultaneously.
Increase Out 1dB / Decrease Out
1dB - Allows one or more output gains
to be controlled by a contact closure on
a programmable input pin. Increase
and Decrease output gain control goes
from a maximum of 0dB gain to a
minimum of 30dB attenuation, plus
16
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