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MLP 101
The Extron MLP 101 is a high performance, microphone to line
level audio preamplifier.
Rear Panel Features
5
MLP 101
LINE
OUTPUT
MIC TO LINE
PREAMPLIFIER
POWER
12V
MIC
0.5A MAX
INPUT
REMOTE
10V
VOL/MUTE
2
4
1
3
Power input
a
Power — Plug the external 12 VDC power supply into this
2-pin, 3.5 mm captive screw connector. The power supply is
included with the unit.
N
The power connector on the rear panel is orange; however,
the plug for the power cord may be either orange or
blue. Either color plug can be connected to the rear panel
receptacle.
To wire the connector, do the following:
1.
Cut the DC output cord to the length needed.
2.
Strip the jacket to expose 0.2" (5 mm) of the conductors for
the blue captive screw plug, or 0.3" (7 mm) for the orange
plug.
W
Exposing more than the amount of copper wire
described above could allow the stripped wires to
touch each other, causing a short circuit. This could
result in the external DC power supply overheating
and/or burning.
N
Stripping the wires to expose less than the recommended
amount causes them to slide out of the connector too easily,
even if they are tightly pinched by the captive screws.
3.
Slide the leads into the supplied captive screw plug and
lock them, using an Extron Tweeker (small screwdriver).
4.
Use the supplied tie-wrap to strap the power cord to the
extended tail of the connector.
5.
To verify the power cord's polarity before connecting
it, plug in the power supply with no load and check the
output with a voltmeter.
MLP 101 Series • MLP 101
2-2
The figure below shows how to wire the connector.
Smooth
Ridges
A
A
SECTION A–A
Power Supply
Output Cord
N
Your MLP 101 may have shipped with a blue captive screw
plug. The blue connector does not have the extended tail or
the included tie-wrap.
C
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
Black Wire
can be easily pulled out. They may also break after
being bent several times.
White Wire
+
W
The two power cord wires must be kept separate while
-
the power supply is plugged in. Remove power before
Tie Wrap
wiring.
Power Supply
b
Output Cable
Power LED — This LED lights green to indicate that the unit is
receiving power.
Mic input (microphone level)
c
Mic Input — A 3-pin, captive screw connector for a standard
condenser microphone connection.
Hot
Hot
Cold
Cold
Cable Shield
Unbalanced Input
Balanced Input
(high impedance)
(high impedance)
C
For unbalanced audio, ensure that the Phantom power
switch is set to the "off" position.
Tie Wrap
0.3" (7 mm) MAX
Orange Captive Screw
Connector
0.3" (7 mm) MAX
Orange Captive Screw
Connector
0.2"
(5 mm) MAX
Captive Screw
Connector stripping
MLP 101 Series • MLP 101
2-3
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