Naim Audio NDX - Manual (Page 7)

5
Installation and Connection
wireless antenna socket. Wireless configuration will also
be necessary before NDX/5XS is able to connect to your
home network. See Section 4.5.1.
2.10.3 Network Settings
The NDX/5XS is set up when originally shipped not to
require any on-site TCP/IP configuration but to connect
to a network automatically (it uses DHCP by default).
However, if your NDX/5XS has been previously used, its
network configuration may have been altered leaving
it unable to connect automatically. If this appears to be
the case ensure that DHCP is selected in the Network
Settings menu (see Section 4.5 of this manual) and re-start
NDX/5XS. If problems still persist contact your retailer,
installer or Naim Audio directly.
Note: Before reporting network connection problems carry
out a Factory Reset operation. Select Reset All Settings
from the Factory Settings setup menu. See Section 4.10.
Note: A NDX/5XS switched on without a working wired
network connection will only be able to connect to
a home network wirelessly. To use an Ethernet (wired)
connection, switch the NDX/5XS off, connect the network
and switch it on again.
Note: For internet radio to operate, the NDX/5XS requires
connection to a broadband internet service.
2.11 System Automation
NDX/5XS control can be linked using System Automation
to the control of some Naim preamplifiers, CD players and
the Naim DAC. System Automation enables for example,
preamplifier inputs to be selected via the NDX/5XS, or for
n-Stream transport functions to control a CD player. To take
advantage of System Automation, connect one of the
NDX/5XS rear panel
Remote Out sockets to a preamplifier,
CD player or DAC Remote In socket. Use a cable
terminated with a 3.5mm jack plug at one end and a
3.5mm jack or phono plug as necessary at the other end.
Using both NDX/5XS Remote Out sockets, for example, one
connected to a preamplifier and one connected to a CD
player enables comprehensive system control via just one
user interface (handset or n-stream iPhone app).
Note: Stereo and mono 3.5mm jack to 3.5mm jack can
be used for System Automation. If a stereo 3.5mm jack to
phono plug cable is used, connect the left channel phono
plug.
Note: NDX/5XS System Automation is switched off by
default. A full description of its configuration and use can
be found in Section 4.9.
2.12 External Control and Update Sockets
The NDX and ND5 XS are fitted with a 3.5mm jack Remote
In socket on their rear panels. The Remote In socket
can be used for RC5 remote control via a fully wired
connection or a remote IR repeater.
The NDX and ND5 XS are also fitted with a rear panel mini-
USB socket. This socket enables firmware upgrades and
diagnostic tests to be carried out. Contact your retailer for
more information if required.
Note: The rear panel mini-USB socket is not intended for the
connection of USB storage hardware and cannot be used
for audio playback.
2.13 Signal Ground Switch
The NDX/5XS is fitted on its rear panel with a Signal Ground
switch offering two positions: Chassis and Floating . Select
the Chassis position unless NDX/5XS is connected in a hi-fi
system incorporating another earthed source component,
or mains “hum” is audible through the loudspeakers.
Contact your retailer, distributor or Naim for advice if
necessary.
Note: “Connected” in the context above means an
analogue audio signal cable that includes an earth
connection.
Note: All Naim CD players are earthed so the Signal
Ground switch should be set to floating if one is connected
in the system (unless a digital signal connection is used).
Note: The Signal Ground switch setting is not affected by
the use of an external power supply.
No damage will be done if the wrong Signal Ground
position is chosen, however the system sound quality may
be compromised.
2.13.1 General Audio Connection Notes
The NDX/5XS mains earth (ground) should always be
connected regardless of what other equipment is used.
Note: If an external power supply is used the NDX/5XS
mains earth is connected through the Burndy connection
cable to the power supply mains earth.
A mains earth grounds the chassis and the electrostatic
screen within the transformer, and is only connected to the
signal negative if the
Signal Ground switch is set to Chassis .
In order to avoid hum loops, the signal negative of the
whole system should be connected to the mains earth in
one place only.