Mark Levinson #52 Quick Start Manual page 9

Controller chassis connectors
DC Power connectors: These connectors provide DC power
from the Controller chassis to the Preamplifier chassis.
Use the two supplied multi-pin DC power cables to connect
the Controller's left-channel DC Power connector to the
Preamplifier's left-channel DC Power connector, and the
Controller's right-channel DC Power connector to the
Preamplifier's right-channel DC Power connector.
USB port: This USB Type-A connector allows you to
perform firmware upgrades that may be offered in the
future. Check our Web site (www.marklevinson.com) for
available updates; if one is offered, follow the instructions
on the Web site. The USB port also allows you to import and
export setup configuration information via a USB memory
stick. See the N 52 User Guide for more information.
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Ethernet port: This port supports connection to a home
network. For information on how to configure and use the
Ethernet port, see the N 52 User Guide.
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IR input connector: This connector accepts 3V – 15V IR
(infrared) control signals with no more than 100mA of
current from other equipment. The 3.5mm jack accepts a
tip/sleeve (mono) plug with the tip wired for positive polarity.
3 to 15V @ <100mA
RS-232 port: This RJ-11 connector provides serial control
through a standard RS-232 connection. For further
information, see the N 52 User Guide.
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Trigger output connector: This 3.5mm tip/sleeve connector
can be used to activate other components in the audio
system and listening room, such as amplifiers, lights and
window shades. A 12V DC signal is output whenever the
N 52 is on.
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Trigger input connector: This 3.5mm tip/sleeve connector
can be connected to the trigger output of another system
component or control system that supplies a trigger
voltage. Whenever the N 52 detects a voltage between
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5V and 12V DC at this connection it will turn On; when the
trigger signal at this connection ceases the N
the Standby mode.
N 52 Control connector: This multi-pin connector shares
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control information between the Controller chassis
and the Preamplifier chassis. Use the supplied multi-
pin N 52 control cable to connect the Controller's N
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Control connector to the N
Preamplifier.
Power switch: This mechanical switch turns the N
power supply on or off. It is usually left on, and it cannot
be turned on or off using the remote control. During
normal operation, do not use Power switch to power off
the N 52. Instead, use the Standby button to place the N
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into Standby. See Operating States, on page 3, for more
information.
AC Mains connector: This connector provides AC power to
the N 52 when the supplied power cord is connected from
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it to an AC electrical outlet.
caUtioN: the N
100 – 240-volt, 50Hz/60Hz ac. Before operating the N
verify that the voltage level of the electrical outlet you
intend to use is within this range.
You should unplug the N
lightning storms and extended periods of non-use.
52 will enter
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N 52 RefeReNce PReamPlifieR
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GettinG StaRted
52 Control connector on the
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52 has been designed for use with
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52 from the AC wall outlet during
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/ Quick-Start Guide
52
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52's
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52
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52,
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