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1 AES/EBU OUT

Connect AES/EBU OUT to corresponding AES/EBU IN of compatible
devices (like the NAD M2 or NAD M51) to stream digital audio content.
For high-end sources with higher sampling rates like 176kHz and
192kHz, it is highly recommended that this AES/EBU OUT be interfaced
with the AES/EBU IN connector. Such interface is well suited to handle
such sources with high sampling rate.

2 COAXIAL OUT, OPTICAL OUT

Connect COAXIAL OUT or OPTICAL OUT to corresponding digital audio
input of compatible devices such receivers, computer soundcard or
other digital processors.

3 USB 1 (TYPE B)

Use for servicing purposes only. Not for consumer use. Only authorized
NAD service personnel can access this USB port.

4 HDMI OUT

Connect HDMI OUT to compatible devices with HDMI input. This is not
video output. It output audio component only and supports 24/192 HD
Audio in PCM’s native I2S format.

5 USB 2 (TYPE A)

•

USB 2 is the corresponding USB input for M52 Digital Music Vault
connection. Loaded CDs will be ripped automatically to the
connected M52 (This is the default setting).

•

A USB mass storage device with music files can also be connected
to USB 2. Typical USB mass storage devices compatible with M50
include portable flash memory devices and external hard drives
(FAT32 formatted).

•

When a USB mass storage device is connected to this port, a “Music”
folder will be automatically created on the USB device. Put all your
music files in this “Music” folder, connect it to M50’s USB 2 and then
re-index – this “Music” folder is now your “Library” where all songs
are stored or ripped.

6 ETHERNET/LAN

LAN connection must be setup for wired connection to be established.
Set up a Wired Ethernet broadband router with broadband internet
connection. Your router or home network should have a built-in DHCP
server to consummate the connection.

•

Using a standard straight-through Ethernet cable (not supplied),
connect one end of the Ethernet cable to the LAN port of your
wired Ethernet broadband router and the other end to M50’s LAN
port.

7 RS232

Use a RS232 serial cable (not supplied) with RS232 adapter (if necessary)
to interface this port to the corresponding RS232 connector of the
optional M2, M51, C390DD or any compatible NAD models. Through
this RS232 connection, the VOLUME slider in the App can be adjusted to
increase or decrease the audio output level of the M50.

8 IR IN, IR OUT

These mini-jacks accept and output remote-controlled codes in
electrical format, using industry-standard protocols, for use with “IR-
repeater” and multi-room systems and related technologies.

•

All NAD products with IR IN/IR OUT features are fully compatible
with M50. For non-NAD models, please check with your other
product’s service specialists as to their compatibility to the M50’s IR
features.

IR IN

This input is connected to the output of an IR (infrared) repeater
(Xantech or similar) or the IR output of another compatible device to
allow control of the M50 from a remote location.

IR OUT

Connect IR OUT to the IR IN jack of a compatible device. Command
and control the linked compatible device by directing its own remote
control to M50’s infrared receiver.

9 +12V TRIGGER IN

With this input triggered by a 12V DC supply, the M50 can be switched
ON remotely from standby mode by compatible devices such as
amplifiers, preamplifiers, receivers, etc. If the 12V DC supply is cut off,
the M50 will return to standby mode.

•

Connect this +12V trigger input to the remote device’s
corresp12V DC output jack using a mono cable with
3.5mm male plug.

•

The controlling device must be equipped with a +12V trigger
output to use this feature.

+12V TRIGGER OUT

•

The +12V TRIGGER OUT is used for controlling external device that is
equipped with a +12V trigger input.

•

Use a 3.5mm mini-jack connector to pass +12V to a compatible
device equipped with +12V TRIGGER IN.

This output will be 12V when the M50 is ON and 0V when the unit is
either OFF or in standby mode.

IDENTIFICATION OF CONTROLS

100-240V 50/60Hz