Toa NF-2S User manual
NF-2SWINDOW INTERCOM SYSTEM
READ ME FIRST
Thank you for purchasing TOA’s Window Intercom System.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
1. SAFETY PRECAUTIONS
• Before installation or use, be sure to carefully read all the instructions in this section for correct
and safe operation.
• Be sure to follow all the precautionary instructions in this section, which contain important
warnings and/or cautions regarding safety.
• After reading, keep this manual handy for future reference.
When Installing the Unit
• Do not expose the unit to rain or an
environment where it may be splashed
by water or other liquids, as doing so may
result in re or electric shock.
• Use the unit only with the voltage specied
on the unit. Using a voltage higher than
that which is specied may result in re or
electric shock.
• Do not cut, kink, otherwise damage nor
modify the power supply cord. In addition,
avoid using the power cord in close proximity
to heaters, and never place heavy objects --
including the unit itself -- on the power cord,
as doing so may result in re or electric shock.
• Since the unit is designed for indoor use, do
not install it outdoors. If installed outdoors,
the aging of parts causes the unit to fall off,
resulting in personal injury. Also, when it gets
wet with rain, there is a danger of electric
shock.
• Avoid installing the Sub-Unit in locations
exposed to constant vibration.
Excessive vibration can cause the Sub-Unit
to fall, potentially resulting in personal injury.
When the Unit is in Use
• Should the following irregularity be found
during use, immediately switch off the
power, disconnect the power supply plug
from the AC outlet and contact your nearest
TOA dealer. Make no further attempt to
operate the unit in this condition as this may
cause re or electric shock.
· If you detect smoke or a strange smell
coming from the unit
· If water or any metallic object gets into the
unit
· If the unit falls, or the unit case breaks
· If the power supply cord is damaged
(exposure of the core, disconnection, etc.)
· If it is malfunctioning (no tone sounds)
• To prevent a re or electric shock, never open
nor remove the unit case as there are high
voltage components inside the unit. Refer all
servicing to qualied service personnel.
• Do not place cups, bowls, or other containers
of liquid or metallic objects on top of the
unit. If they accidentally spill into the unit,
this may cause a re or electric shock.
Indicates a potentially hazardous situation
which, if mishandled, could result in death
or serious personal injury.
WARNING
• Do not insert nor drop metallic objects or
ammable materials in the ventilation slots
of the unit's cover, as this may result in re
or electric shock.
• Do not touch a power supply plug during
thunder and lightning, as this may result in
electric shock.
• Avoid positioning sensitive medical
equipment in close proximity to the Sub-Unit
magnets, as the magnets could adversely
affect the operation of such sensitive medical
equipment as pacemakers, potentially
leading to patients fainting.
Indicates a potentially hazardous situation
which, if mishandled, could result in
moderate or minor personal injury, and/or
property damage.
CAUTION
When Installing the Unit
• Never plug in nor remove the power supply
plug with wet hands, as doing so may cause
electric shock.
• When unplugging the power supply cord,
be sure to grasp the power supply plug;
never pull on the cord itself. Operating the
unit with a damaged power supply cord may
cause a re or electric shock.
• When moving the unit, be sure to remove
its power supply cord from the wall outlet.
Moving the unit with the power cord
connected to the outlet may cause damage
to the power cord, resulting in re or electric
shock. When removing the power cord, be
sure to hold its plug to pull.
• Avoid installing the unit in humid or dusty
locations, in locations exposed to the direct
sunlight, near the heaters, or in locations
generating sooty smoke or steam as doing
otherwise may result in re or electric shock.
• To avoid electric shocks, be sure to switch off
the unit's power when connecting speakers.
When the Unit is in Use
• Make sure that the volume control is set to
minimum position before power is switched
on. Loud noise produced at high volume
when power is switched on can impair
hearing.
• Do not operate the unit for an extended
period of time with the sound distorting.
Doing so may cause the connected
speakers to heat, resulting in a re.
• Be sure to use only the designated AC
adapter and power cord. Using any other
than the designated components could
result in damage or re.
• If dust accumulates on the power supply
plug or in the wall AC outlet, a re may
result. Clean it periodically. In addition,
insert the plug in the wall outlet securely.
• Switch off the power, and unplug the power
supply plug from the AC outlet for safety
purposes when cleaning or leaving the
unit unused for 10 days or more. Doing
otherwise may cause a re or electric shock.
• Note on the Use of Headsets: Be sure to
perform the designated settings before
using headsets, as failure to follow the
instructions provided could generate overly
loud sound output, possibly resulting in the
temporary impairment of hearing.
• Avoid placing any magnetic media in
close proximity to the Sub-Unit magnets,
as this could have a harmful effect on the
recorded contents of magnetic cards or
other magnetic media, possibly resulting in
damaged or destroyed data.
The socket-outlet shall be installed near the equipment and the plug (disconnecting device) shall
be easily accessible.
6. INSTRUCTION MANUAL GUIDANCE
For more details regarding the operation of the NF-2S Window Intercom System, such as installation
or types of usable headsets, please refer to the instruction manual, which can be downloaded from
the URL or QR Code shown below.
* “QR Code” is registered trademark of DENSO WAVE INCORPORATED in Japan and
other countries.
Base Unit ........................................................ 1
Sub-Unit ......................................................... 2
AC adapter* .................................................... 1
Power cord* .................................................... 1
Dedicated cable ............................................. 2
Rubber foot for Base Unit .............................. 4
Metal plate ...................................................... 2
Mounting base ................................................ 4
Zip tie .............................................................. 4
Setup guide .................................................... 1
Read Me First (This manual) ......................... 1
* No AC adapter and Power cord are supplied with the version W.
For usable AC adapter and Power cord, consult your nearest TOA dealer.
2. CONFIRM CONTENTS
Ensure that the following components, parts and manuals are contained in the packing box:
3. GENERAL DESCRIPTION
Consisting of one Base Unit and two Sub-Units, the NF-2S system is designed to relieve problems
in understanding face-to-face conversations through a partition or face masks. Since the Sub-Units’
built-in magnets allow them to be easily attached to both sides of a partition, they can be used even
in locations without ample mounting space.
4. FEATURES
• Provides full, intuitive support for simultaneous two-way conversation thanks to DSP signal
processing and wideband audio output, while eliminating dropouts in sound output.
• Compact and lightweight Sub-Unit design facilitates installation.
• Magnetically mounted Sub-Units are easily installed, eliminating the need for brackets and other
metal ttings.
• Allows easy connection of commercially available headsets as a replacement sound source for
either of the pair of Sub-Units.
• External control input terminal of MUTE IN allows easy muting microphone for Sub-Unit or Headset
which is connected to input A.
5. INSTALLATION PRECAUTIONS
• The supplied AC adapter and power cord are designed exclusively for use with the NF-2S system.
Do not use these to power any other devices than the NF-2S system.
• Use the supplied dedicated cables for connection between the Base Unit and the Sub-Units.
• The supplied dedicated cables are exclusively designed for use with the NF-2S. Do not use them
with any other devices than the NF-2S system.
• Do not connect any external devices to the Base Unit other than the Sub-Units, compatible
headsets or the optional Distributor.
URL: https://www.toa.jp/
133-03-00047-00
FCC REQUIREMENTS
Note
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy, and if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and receiver
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected
• Consult the dealer or an experienced radio/TV technician for help
Modications
Any modications made to this device that are not approved by TOA Corporation may void the
authority granted to the user by the FCC to operate this equipment.
DECLARATION
Any modication to the unit, unless expressly approved by TOA Electronics, Inc., could void
your authority to operate the equipment.
DECLARATION OF CONFORMITY
TOA Electronics, Inc.
1 Harmon Plaza, Suite 700 Secaucus, New Jersey 07094, USA
TEL 650-452-1200
declare under our sole responsibility that the product
WINDOW INTERCOM SYSTEM NF-2S 3CU
comply with Part 15 of FCC Rules.
Operation is subject to the following conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation.
Traceability Information for USA
Manufacturer:
TOA Corporation
7-2-1, Minatojima-Nakamachi, Chuo-ku, Kobe, Hyogo,
Japan
Authorized representative:
TOA Electronics, Inc.
1 Harmon Plaza, Suite 700 Secaucus,
New Jersey 07094,
USA
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