Meyer Sound CAL 32, Operating Instructions Manual

Page: 15 / 44

CAL OPERATING INSTRUCTIONS
15
CHAPTER 3: CAL USER PANEL
The CAL user panel includes audio input connectors, both
analog and digital (AES/EBU), for receiving audio source
signals. It also includes logic connectors for selecting
presets, overriding and muting audio output, and monitoring
loudspeaker faults. The Ethernet and AVB network audio
ports allow interfacing with a Mac or Windows-based
computer running Compass Control Software. The
AVB
- enabled Ethernet port can also be used for receiving
AVB audio streams as audio source signals.
AUDIO INPUT
CAL includes four numbered audio inputs: three analog and
one digital. The three analog inputs also provide loop output
for looping multiple loudspeakers from a single audio
source. In Compass control software, a single input is
specified as the active input, and another input can be
specified as an override input (when the installation requires
CAL to function as part of a fire alarm or evacuation system).
NOTE: AVB audio streams received by the
AVB port can also be used as audio sources.
For more information, see “OLED Button” on
page 20.
NOTE: CAL ships from the factory with Analog
Input 1 selected as the active input, and no
input selected for the override input. These inputs
can be changed with Compass Control Software.
NOTE: For more information, refer to the
Compass support videos (available at
meyersound.com/product/compass/#support-
videos ).
Analog Inputs (1–3)
The three analog inputs use Phoenix 6-pin male connectors
and accept balanced audio signals with an input impedance
of 10 kOhm. The analog audio source is received via the
connector’s top three pins (shield, positive, and negative).
The signal is looped to the connector’s bottom three pins
(also shield, positive, and negative) for output when looping
multiple loudspeakers from a single audio source. The pins
for the analog connectors are clearly labeled on the CAL
user panel.
CAL User Panel
Analog Audio Input and Loop Output Connectors
1 2 3
Analog
LO
O
P
I
N
S
+
-
S
+
-
S
+
-
S
+
-
S
+
-
S
+
-