Rear Panel Features And Cabling - Extron electronics MVC 121 User Manual

im Vertrieb von
Installation and Operation

Rear Panel Features and Cabling

MVC 121
MIXER/VOLUME
CONTROLLER
INPUTS
POWER
12V
ON
0.5A MAX
ON
LINE
MIC
1 2 3 4
OFF
1 2 1 2
1 2
Power connector — Connect the included 12 VDC external
1
power supply into the 2-pole 3.5 mm captive screw connector.
Be careful to observe the correct polarity.
A A
SECTION A–A
Power Supply
Output Cord
CAUTION When connecting the power supply, voltage
polarity is extremely important. Applying power
with incorrect voltage polarity could damage the
power supply and the MVC 121. Identify the
power cord negative (ground) lead by the ridges on
the side of the cord or a black heat shrink wrapping
around it.
Do not tin the stripped power supply leads before
installing the captive screw connector. Tinned wires are
not as secure in the captive screw connectors and could
be pulled out.
The two power cord wires must be kept separate
while the power supply is plugged in. Remove
power before wiring.
To verify the polarity before connection, check the no load
power supply output with a voltmeter.
www.camboard.de
MVC 121 • Installation and Operation
2-6
4 6
MAIN 3 FIXED
L R L R
R
L
MIC 1 MIC 2 VARIABLE RS-232 MUTE
1 2 3
Tx Rx
3 5 7 8
Captive Screw
Connector
CAMBOARD Electronics
Tel. 07131 911201
Fax 07131 911203
After making any adjustments to the MVC 121, either
via the front panel controls, SIS commands, or the
Extron Audio Products Control Program, wait at least
10 seconds after making those changes before
disconnecting power to the MVC 121. Failure to
observe the 10-second timeout may result in those
adjustments not being saved.
Mic input DIP switch— Mic 1 and Mic 2 inputs
2
are controlled via a DIP switch.
1. Set the mic input Level according to the
microphone type:
a. Wireless mic: Set the mic's DIP switch to the Line
position (On).
b. Wired mic: Set the mic's DIP switch to the Mic
position (Off).
2. Set the 48V phantom power position according to
microphone type:
a. Condenser mic: Set the mic's DIP switch to the On
position.
b. Dynamic mic: Set the mic's DIP switch to the Off
position.
Condenser microphones require power. Dynamic
microphones do not require power.
When a mic's input level DIP switch is set to "line"
level, that input's 48V phantom power is disabled
regardless of the "48V" phantom power DIP switch
setting of that input.
CAUTION Never set an unbalanced dynamic microphone to
48V, doing so may damage the microphone. For
condenser mics, verify that the mic will safely
operate at 48 VDC.
ce-info@camboard.de
MVC 121 • Installation and Operation
ON
LINE ON
OFF
MIC 1 3 4
2
1 2 1 2
2-7