Ground ( ); 12Vdc Ground ( ); B Receive (Rx) A Transmit (Tx); Wiring The Mlc/Power Connector - Extron electronics MLA-VC10 User Manual

Medialink accessory volume control 10
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Installation and Setup, cont'd

Wiring the MLC/Power connector

The 12VDC, 1 amp power supply kit (part #70-055-01)
is not included with the MLA-VC10.
MLC/RS-232
POWER
A B
MLA-VC10's
front panel
MLC/RS-232
Power port
White or
white-striped
wire
+12VDC

Ground ( )

Ground all devices
+12VDC
+12VDC
Ground ( )
Ground ( )
B
Receive (Rx)
Transmit (Tx)
A
Transmit (Tx)
Receive (Rx)
NOTE
If you use cable that has a
drain wire, tie the drain wire
to ground at both ends.
NOTE
Use the MediaLink control software to set the MLC's volume control to "Switcher"
instead of "Projector". Refer to the MediaLink Controllers User's Manual.
Connecting an MLA-VC10 to an MLC 206
MLC/RS-232
POWER
A B
MLA-VC10's
front panel
MLC/RS-232
Power port
White or
white-striped
wire
+12VDC
Ground ( )
Ground all devices
Ground ( )
Ground ( )
B
Receive (Rx)
Transmit (Tx)
A
Transmit (Tx)
Receive (Rx)
NOTE
If you use cable that has a
drain wire, tie the drain wire
to ground at both ends.
Connecting an MLA-VC10
to a Computer or Third Party Control's RS-232 Port
MLA-VC10 • Installation and Setup
2-10
MLA-VC10
MLC/POWER
POWER/
STATUS
A B
MLA-VC10
Front Panel
12VDC
Power Supply
An external
power supply
(12VDC, 1A max.)
A B C D E
A B C
D E
1A 1B 2A 2B 3A 3B
A B C
D
1 2 3 4 5 6
A B
IR
RS-232
Tally Out
MLS/Power
Display/Source Control
Relays
IR / RCM
Extron Switcher Control
MLC 206 Bottom Panel
NOTE
The external power
B
supply provides power
A
to both the MLA-VC10
and the MLC.
MLC 206's
MLS/Power
port
A B
MLS / Power
MLA-VC10
MLC/POWER
POWER/
STATUS
A B
MLA-VC10
Front Panel
An external
power supply
(12VDC, 1A max.)
12VDC
Power Supply
B
A
Computer or
Third Party
Rx Tx Gnd
Control's
Computer or
RS-232 Port
Third Party Control's
RS-232 Port
MLC/RS-232
POWER
A B
MLA-VC10
front panel
MLC/RS-232
Power port
White or
white-striped
wire
+12VDC input
Ground ( )
Ground all devices
Connecting an MLA-VC10
to an external power supply
To avoid introducing noise and static into the audio
channels, the MediaLink Controller (if used), the power
supply, the MLA-VC10, and the amplifier or mixer
should all share the same grounding source.
The 12VDC, 1 amp power supply kit (part #70-055-01)
is not included with the MLA-VC10.

Wiring the Amp/Mixer Control connector

The illustration below shows how to wire the 3.5 mm, 2-pole
captive screw connector for controlling the amplifier or mixer.
AMP/MIXER
CONTROL
CTRL
*
The actual maximum control voltage depends on the
Configuration DIP switch settings, but the maximum
power output will not be reached if the amplifier's
control port voltage measures more than 10VDC.
0VDC to +10VDC
Ground ( )
6 feet (1.8 m) maximum
between the MLA-VC10
and the amplifier
Wiring the MLA's Amp/Mixer Control connector
In some applications the amplifier's front panel volume
control knob may be disabled when the MLA is attached
to the amplifier's control port.
See the illustration on page 2-9 for power wiring instructions.
The Configuration DIP switches must also be set to select the
outgoing voltage. See pages 2-7 to 2-9.
MLA-VC10 • Installation and Setup
An external
power supply
(12VDC, 1A max.)
*
To Amplifier
2-11

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