Inter-m NAO-1104 User manual

Operation Manual
Network Audio Output Converter
NAO-1104

NETWORK AUDIO OUTPUT CONVERTER
Welcome
Welcome
A personal welcome to you from the management and employees of Inter-M
All of the co-workers here at Inter-M are dedicated to providing excellent products with inherently good
value, and we are delighted you have purchased one of our products.
We sincerely trust this product will provide years of satisfactory service, but if anything is not to your
complete satisfaction, we will endeavor to make things right.
Welcome to Inter-M, and thank you for becoming part of our worldwide extended family!
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSON-
NEL.
ATTENTION : RISQUE DE CHOC ELECTRIQUE
NE PAS QUVRIR
WARNING
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
*WARNING FOR YOUR PROTECTION PLEASE READ THE FOLLOWING-WATER AND MOISTURE: Unit should not be used near
water(e.g. near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be
taken so than objects do not fall and liquids are not spilled into the enclosure through openings.
*Do not install this equipment in a confined space such as a book case or similar unit.
*Warning : To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture and objects filled with liquids,
such as vases,
should not be placed on this apparatus.
*This apparatus shall be connected to a mains socket outlet with a protective earthing connection.
* To completely disconnect this apparatus from the AC mains, disconnect the power supply cord plug from the AC receptacle.
* The mains plug of the power supply cord shall remain readily accessible.
CAUTION
*These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock, do not perform any
servicing other than that contained in the operating instructions unless you are qualified to do so.
NOTE
*This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will be required to correct the interference at his own expense.
This symbol is intended to alert the user to the
presence of uninsulated “dangerous voltage”
within the product’s enclosure that may be of suf-
ficient magnitude to constitute a risk of electric
shock to persons.
This symbol is intended to alert the user to the
presence of important operation and maintenance
(servicing) instructions in the literature accompa-
nying the appliance.
Caution: To prevent electric shock do not use this (polarized) plug
with an extension cord, receptacle or other outlet unless
the blades can be fully inserted to prevent blade exposure.
Attentions: Pour prévenir les chocs électriques ne pas utiliser cette
fiche polarisée avec un prolongateur, une prise de cou-
rant on une autre sortie de courant, sauf si les lames
peuvent étre insérées à fond sans en laisser aucune
partie à découvert.
Pour deconnecter completement l’appareil du reseau
d’alimentation. deconnecter le cordon d’alimentation de
la prise murale.
La prise du reseau d’alimentation doit demeurer aise-
ment accessible.

NETWORK AUDIO OUTPUT CONVERTER
1
NAO-1104
Contents
Contents
Unpacking........................................................................................................................2
Installation
Environment .....................................................................................................................2
Important Safety Instructions ..............................................................................................2
Features ............................................................................................................................3
Contents and Accessories..............................................................................................3
Front Panel .......................................................................................................................4
Rear Panel........................................................................................................................5
Operation.........................................................................................................................7
Applications .....................................................................................................................8
Block Diagram.................................................................................................................9
Specifications.................................................................................................................10
Service
Procedures .....................................................................................................................13
Schematic.......................................................................................................................13
Parts List.........................................................................................................................13
Variations and Options................................................................................................13
Warranty ........................................................................................................................13

NETWORK AUDIO OUTPUT CONVERTER
2NAO-1104
Installation
Unpacking
Unpacking
Although your NAO-1104 is neither complicated nor difficult to operate, we recommend you take a
few minutes to read this brief manual and familiarize yourself with the important information regarding
product features, setup and operation.
As with most electronic devices, we strongly recommend you retain the original packaging. In the un-
likely event the product must be returned for servicing, the original packaging (or reasonable equivalent)
is required.
Installation
Environment
Never place this product in an environment which could alter its performance or reduce its service life.
Such environments usually include high levels of heat, dust, moisture, and vibration.
IMPORTANT SAFETY INSTRUCTIONS
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (in-
cluding amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two
blades with one wider than the other. A grounding type plug has two blades and a third grounding
prong. The wide blade or the third prong are provided for your safety. If the provided plug does not
fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs, convenience recep-
tacles, and the point where they exit from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the
apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid in-
jury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of
time.
14. Refer all servicing to qualified service personnel. Servicing is required when
the apparatus has been damaged in any way, such as power-supply cord or
plug is damaged, liquid has been spilled or objects have fallen into the appa-
ratus, the apparatus has been exposed to rain or moisture, does not operate
normally, or has been dropped.
S3125A

NETWORK AUDIO OUTPUT CONVERTER
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NAO-1104
Features
Contents and Accessories
Contents and Accessories
1.AC cord x 1EA
2.4P Euro Terminal (5.08mm) x 1EA
3.2P Euro Terminal (5.08mm) x 1EA
4. User Manual x 1EA
5.3p Euro Terminal (3.5mm) x 4EA
6.8p Euro Terminal (3.5mm) x 1EA
7. Screws for rack mounting x 4EA
Features
- Matrix system for PA broadcasting
It is a PA broadcasting system using an audio matrix and remote microphone.
- Use AC/DC power
AC 120V~240V 50/60 Hz, DC +24V power connection is possible.
- RACK installation space saving
The compact design of 1U size enables efficient use of space during rack installation.
- 4 channel contact output
External device can be controlled through 4 contact outputs.
- Play sound source
The user can play a sound source using an audio matrix.
- AoE device linkage
It can work with an audio input device that supports Inter-M AoE protocol.
- 4 channel audio output
It can receive 4-channel AoE digital audio signals and output them as analog audio signals.

NETWORK AUDIO OUTPUT CONVERTER
4NAO-1104
Front Panel
Front Panel
1. NETWORK STATUS LED
This LED indicates the operating status of networks 1, 2.
2. OLED DISPLAY
Network status information is displayed through the OLED Display.
- IP Address, Subnet mask, DNS Server, Mac Address
※If there is no operation of the display control switch for 30 seconds, OLED turns off and turns on
when operated.
3. DISPLAY PANEL CONTROLLING SWITCH
By turning the display control switch, the user can check the desired information.
4. POWER LED
The green LED lights up when the instrument is powered on.
192.168.1.99
1 2
43
NAO 1104
NETWORK AUDIO OUTPUT CONVERTER

NETWORK AUDIO OUTPUT CONVERTER
5
NAO-1104
Rear Panel
Rear Panel
1. AC INPUT TERMINAL
It is an AC power supply terminal. Do not forcibly bend, pull, twist, heat, or cut the power cord. Doing
so may damage the cord and cause fire or electric shock.
2. AC POWER SWITCH
A switch that turns the instrument's AC power on and off.
3. DC 24V INPUT TERMINAL
It is an emergency spare battery (DC 24V) connection terminal. If an AC power failure occurs, the
device operates with the connected spare battery. When DC 24V power is applied to the device, the
device always operates regardless of the power switch.
4. AUDIO OUTPUT TERMINAL
It is the terminal to output the audio signal.
●Refer to the figure below for how to connect.
DC INPUT
AC INPUT
LINE OUTPUT
CH4 CH3 CH2 CH1
21
CONTACT OUTPUT
PD
G G G G
POWER
ON
OFF
3
4
NETWORK
1 3 4
8765
2
[Balanced Cable] [Unbalanced Cable]

NETWORK AUDIO OUTPUT CONVERTER
6NAO-1104
5. Contact output terminal
DRY CONTACT OUPUT for PD control in distributed areas.
Outputs up to 4 channels of contacts. Normal Open
(OPEN when product power is cut off and contact output is set to
OFF) When the output is ON, it is shorted.
6. PD CONTROL CONTACT OUTPUT TERMINAL
It is a DRY CONTACT OUTPUT to turn on the amplifier by controlling the power of the remotely located
PD. LINE OUTPUT When any one of the 8 channels outputs an audio signal, the contact output turns ON.
7. NETWORK CONNECTION TERMINAL
Can be chained. When the network is connected, the device can be controlled through the PC pro-
gram and web page.
※For setting method, refer to the software manual. The manual can be downloaded from the website
(www.inter-m.net).
8. FACTORY RESET SWITCH
If the user press and hold this button for 10 seconds or more, the settings of the device will be initial-
ized to the factory default settings.
※Never cut off the power of the device while FACTORY RESET is in progress.
STP
18
18
18 8
[ TOP VIEW ]
DIRECT
[ CABLE COLOR ORDER ]
CROSS
[ CABLE CROSS ORDER ]
[ FRONT VIEW ]
8.Brown
7.W/Brown
6.Green
5.W/Blue
4.Blue
3.W
/
Gree
n
3.W/Green
2.Orange
1.W/Orange
3
ACT
LINK
<100 Base-T> <1G Base-T>
PIN NO Function PIN NO Function
1 TXP 1 MX(0)+
2 TXN 2 MX(0)-
3 RXP 3 MX(1)+
4 NA 4 MX(2)+
5 NA 5 MX(2)-
6 RXN 6 MX(1)-
7 NA 7 MX(3)+
8 NA 8 MX(3)-

NETWORK AUDIO OUTPUT CONVERTER
7
NAO-1104
Operation
Operation
①It is the standby screen of the device. Model name, IP ADDRESS Network information is displayed.

②Turn the front panel control switch to the right on the standby screen or turn the switch to the left
on the Network Usage screen to display Network Info (IP ADDRESS, SUBNET MASK, DNS, MAC
ADDRESS). Turning the switch to the left on the Network Info screen displays the standby screen.

③Network Usage (RX/TX data rate) appears when the user turn the display window control switch
to the right on the Network Info screen or turn the switch to the left on the standby screen.
Turning the switch to the right on the Network Usage screen brings up the standby screen.
NAO-1104 2.2.1.8
IP. 192.168.1.99
DNS 8. 8. 8. 8
00:1d:1d:1d:00:00:00
Mask 255.255.255.0
IP 192.168.1.99
Network Info.
①
②
TX KB/s
0.00
0.00
RX KB/s
Network Usage.
③

NETWORK AUDIO OUTPUT CONVERTER
8NAO-1104
LAN LAN LAN
LAN
AUDIO(MIC/LINE) AUDIO(LOW/HIGH-Z) CONTACT SERIAL DATA NETWORK(UTP)
NETWORK EMERGENCY
PANEL(NEP-1200)
AOE TO AUDIO CONVERTER
AUDIO 4CH. OUT
AOE TO AUDIO CONVERTER
AUDIO 4CH. OUT
AUDIO TO AOE CONVERTER
AUDIO 4CH. IN
Emergency sound source /
TTS / Schedule broadcast
NETWORK REMOTE MIC
AOE AUDIO OUTPUT
Sound source equipment
Gym broadcasting
equipment
Outdoor broadcast
3-4 1-1 6-4 4-1 2-4 1-1
Elementary school
Middle school
DIGITAL TUNER(TU-6200)
LAN LAN
LAN LAN LAN LAN LAN LAN LAN
NETWORK AUDIO
INPUT CONVERTER(NAI-1104)
NETWORK GPIO(NCIO-1000)
AUDIO AUDIO
Broadcasting room
Teacher's room Teacher's room Broadcasting room
NETWORK AUDIO OUT
PUT CONVERTER(NAO-1104)
NETWORK AUDIO OUT
PUT CONVERTER(NAO-1104)
NETWORK AUDIO OUT
PUT CONVERTER(NAO-1104)
NETWORK POWER
AMPLIFIER(NPA-240S)
8 line 8 line 8 line
DIGITAL POWER
AMPLIFIER(DPA-50E)
DIGITAL POWER
AMPLIFIER(DPA-50E)
DIGITAL POWER
AMPLIFIER(DPA-50E)
CONTROL MOBILE
LAN
CONTROL PC
NETWORK AUDIO
OUTPUT CONVERTER(NAO-1104)
Studio
NETWORK AUDIO
INPUT CONVERTER(NAI-1104)
Broadcast PC
Web browser-based
L2 SWITCHING HUB
LAN
Built-in operating software
Fire receiver
(P type/R type re signal)
NETWORK CONTROL SERVER
(IPA-100)
Applications
Applications

NETWORK AUDIO OUTPUT CONVERTER
9
NAO-1104
Block Diagram
Block Diagram

NETWORK AUDIO OUTPUT CONVERTER
10 NAO-1104
Specifications
Specifications
* Design and specification are subject to be changed for the improvement of product quality without pre notice.
NAO-1104
Audio input sensitivity LINE: 0dBV
MIC: -60dBV
Rated Output Power 0dBV
Phantom power +24V / 14mA
THD
@ OUTPUT 1kHz,Output 0dBV
LINE: Less than 0.04%
MIC: Less than 0.2%
S/N
@ OUTPUT 1kHz,Output 0dBV,A-WTD
LINE: More than 70dB
MIC: More than 65dB
Frequency Response LINE: 20Hz~20kHz
MIC: 20Hz~20kHz
Network communications 100/1000 base-T (RJ-45)
communication distance MAX 100m
Contact 4CH OUTPUT
Operating Temperature -10℃~ +40℃
Operating Power AC 120-240V~, 50/60Hz, 0.4A
DC +24V, 800mA
Power Consumption 20W
Weight (SET) 3.1Kg/6.8lb
Dimensions (SET) 482(W) x 44(H) x 280(D)mm/19(W) x 1.7(H) x 11(D)in

NETWORK AUDIO OUTPUT CONVERTER
11
NAO-1104
※ DIMENSIONS
482
44
440
280

NETWORK AUDIO OUTPUT CONVERTER
12 NAO-1104
This product can be used on a table or fixed to a rack.
However, be sure to observe the installation precautions below when using it in a rack.
1. Place the product in an empty area of the rack.
2. Using the included mounting screws, tighten the 4 mounting holes so that there are no voids
and fix them.
3. Please proceed with the wiring for the operation of the product, and apply the power last.
4. Disassemble in the reverse order of the above procedure.
5. In case of fixing by not using the included screws or screws of the same size, or using insufficient
number of screws the manufacturer is not responsible for any safety accidents caused by this.
Accessories included for fixing the product
- Specification: SCREW M5x0.8P, L=12
- Quantity: 4pcs
Instructions for use of screws

NETWORK AUDIO OUTPUT CONVERTER
13
NAO-1104
Service
Service
Procedures
Take steps to insure the problem is not related to operator error or other products within the system. In-
formation provided in the troubleshooting portion of this manual may help with this process. Once it is
certain that the problem is related to the product contact your warranty provider as described in the
warranty section of this manual.
Schematic
A Schematic is available by contacting your warranty provider.
Parts List
A Parts List is available by contacting your warranty provider.
Variations and Options
Variations and Options
Variations
Products supplied through legitimate sources are compatible with local AC power requirements.
Options
No optional items are available for this product.
Warranty
Warranty
Warranty terms and conditions vary by country and may not be the same for all products. Terms and
conditions of warranty for a given product may be determined first by locating the appropriate country
which the product was purchased in, then by locating the product type.
To obtain specific warranty information and available service locations contact Inter-M directly or the
authorized Inter-M Distributor for your specific country or region.

MADE IN KOREA
January 2023 157762
Inter-M, Ltd. (Korea) began operations in 1983.
Since then, Inter-M has grown to become one of the largest manufacturers
of professional audio and commercial sound electronics equipment in the world.
Inter-M has gained worldwide recognition for its own branded products,
as well as private label manufacturing of electronics sold under other names (OEM).
The company is no longer just a Korean company, but rather a global company
that is truly international in scope, with factories and offices in Korea and China,
and sales and marketing operations located in Japan, Europe, and the U.S.A.
With more than 850 employees around the globe,
Inter-M is well-poised for further growth and expansion.
Inter-M Corporation
SEOUL OFFICE : 719, DOBONG-RO, DOBONG-GU, SEOUL, KOREA
TEL : [phone]~8, FAX : [phone]
Home Page : http://www.inter-m.com, E-mail : [email protected]