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Section 1: Introduction- Detailed Description of Functions
AUDIO FUNCTIONS
Audio Inputs- These are the 3-pin terminal block connectors
used for balanced line level audio-signal input. This type of
connector is sometimes called“Phoenix”or “Euro” style.
Input Sensitivity- Sets the sensitivity of the Audio Inputs to
either 1 Volt or 3 Volts (r.m.s.). This selection should coincide
with the level of the audio signal provided for each channel.
Input Source: Normal/Page- Selects the input source for
each channel.
Normal
input is the audio connected at the
Audio Input
terminals.
Page
input is the audio provided by the
Paging Input Module.
Level Control- Provides adjustment of the signal level
delivered to the amplifier for each channel. Adjustment is from
-95.5dB to 0dB in 0.5 dB steps.
Meter-These points are indicators of where in the audio path
the software can “meter” the audio.
Mute- Actively mutes the audio signal being passed by a
channel. No signal is delivered to the amplifier when a channel
is muted.
Parallel Mode- When parallel mode is selected, the input to
the first channel is also applied to the second channel. When
in parallel mode, the input is ALWAYS from the first (or odd
numbered) input. The second (or even numbered) input is
ignored; this includes the PAGE signal. This feature is useful
for sending one input signal to both amplifier channels without
having to wire jumpers between the two input connectors.
This mode is automatically enabled by the CM16a when the
amplifier bridge mode is set to any of the parallel modes
available (see amplifier manual for details).
Polarity- Determines the polarity of the signal delivered to
the amplifier for each channel.
AUDIO MONITOR CHAIN FUNCTIONS
Pre-Fader Monitor- Monitors the audio path at the point
before the
Level Control
block (i.e. the input to the CM16a).
Post-Fader Monitor- Monitors the audio path at the point
after the
Level Control, Mute
, and
Polarity
blocks (i.e. the
output from the CM16a).
Amplifier Monitor- Monitors the audio at the output of the
amplifier (i.e. the speaker terminals of the amplifier).
Off- This selection disconnects the monitor for the channel.
Level Adjust- Provides adjustment of the signal level deliv-
ered to the
Monitor Module
from each of the selectable “tap”
points of a channel’s audio path. Adjustment is from -95.5dB
to 0dB in 0.5 dB steps.
Monitor Module- This module functions as a four-input
mixer with software selection of the input channels. The four
selected channels are summed with the external input,
Monitor Chain In
. For each of the inputs, the “tap” point is
selectable from the pre-, post-, amplifier and off positions.
AMPLIFIER CONTROL FUNCTIONS
Standby/ Operate- Controls the amplifier’s power status-
ON
- amplifier operational
STANDBY
- amplifier in standby mode
NOTE! The amplifier must be powered in order to respond to
any commands issued by the CM16a. This means the amp’s
power switch must physically be in the ON position.
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