Cloud Electronics Matrix4 - Manual (Page 6)

Matrix 4 I NSTALLATION AND OPERATION MANUAL 5
9 Individual Microphone Level Controls
Separate, front panel mounted level controls are provided for all 4 microphones. Use these
controls to set the operating level of each individual microphone; settings will vary depending
upon the conditions, however, for optimum performance, set the controls to a minimum
setting of 12 o’clock. Self-adhesive labels are provided to identify the microphone channels;
the labels can be affixed in the spaces provided on the front panel.
10 Microphone Routing Switches
All 5 microphones have illuminated routing switches for all four zones; when a switch is
depressed, the button illuminates and the respective mic signal will be routed to the
particular zone. The graphical design of the front panel, together with the illuminated
switches, clearly shows the signal routing at a glance.
11 Master Microphone Level Controls
Each of the four zones has a master microphone level control. Once the individual mic
channel level controls are set, use the respective master control to adjust the composite
level for a particular zone. For the benefit of the operator, self-adhesive labels are provided
to identify the four zones; the labels can be affixed in the spaces provided on the front panel.
12 Microphone Priority
The paging microphone has priority over all microphone and music signals. When a paging
announcement is detected on any of the four zones, all other microphone signals are fully
muted and any music signal present will be reduced by 30dB. When the paging microphone
is not in use, the detection of a microphone signal will trigger the priority circuitry and reduce
the level of the music signal by 30dB. Mic over music priority can be defeated by configuring
jumper J10 located on the small PCB mounted on the rear of the front panel PCB.
13 CPM-4 Paging Microphone
The Cloud CPM-4 is a 4 Zone paging microphone compatible with the Matrix 4 Mixer. The
microphone includes Zone Selection, Talk and call-all buttons, Pre-announcement two-tone
chime, Internal chime sounder, ‘Busy’ LED, ‘First-come first-served’ broadcast option, Auto
zone reset after announcement and Zone disable. Such an array of functions makes the
CPM-4 very versatile. Up to five CPM-4 paging mics can be connected to one Matrix 4.
When installing the CPM-4 we recommend the use of two cables: a two core screened cable
for the balanced mic signal and a separate 8 core cable with overall screen for the power
and logic signals. A male type 9-pin sub-D type connector is supplied with the Matrix 4 to
terminate the 8 core cable. The 9 pin sub-D connector shell must be connected to the cable
screen. The Matrix 4 can provide +15V power for one CPM-4 microphone only; additional
microphones will require the optional plug-top power supply unit CPM-PSU.
Wiring a CPM-4 to a Matrix 4
16/12/02 V6.0