Inter-m AOE-N300 User manual

Operation Manual
Audio Over Ethernet
AOE-N300
* Rack mount products in the Western Hemisphere(North America, South America,
and the Caribbean) do not have handles installed due to customer preference.

AUDIO OVER ETHERNET
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 PERSONNEL.
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 sufficient
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 accompanying
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 courant
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 aisement
accessible.

AUDIO OVER ETHERNET
1
AOE-N300
Contents
Contents
Unpacking .......................................................................................................................................2
Installation
Environment....................................................................................................................................2
Important Safety Instructions.............................................................................................................2
Overview .........................................................................................................................................3
Features ...........................................................................................................................................3
Contents and Accessories .............................................................................................................3
Front Panel ......................................................................................................................................4
Rear Panel .......................................................................................................................................6
Applications ..................................................................................................................................10
Block Diagram ..............................................................................................................................12
Specifications ................................................................................................................................13
Service
Procedures....................................................................................................................................15
Schematic.....................................................................................................................................15
Parts List .......................................................................................................................................15
Variations and Options...............................................................................................................15
Warranty .......................................................................................................................................15

AUDIO OVER ETHERNET
2AOE-N300
Installation
Unpacking
Unpacking
Although your AOE-N300 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 unlikely 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 (including
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 receptacles, 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 injury 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 apparatus, the
apparatus has been exposed to rain or moisture, does not operate normally, or has
been dropped.
S3125A

AUDIO OVER ETHERNET
3
AOE-N300
Features
Contents and Accessories
Contents and Accessories
1. AC Power Cord x 1EA
2. 3P Terminal Block x 4EA
3. 4P Terminal Block x 2EA
4. 16P Terminal Block x 2EA
5. RS-232C Cable x 1EA
6. Rack Mount Screw x 4EA
7. LAN Cable x 1EA
※Notes on network setup
1. AOE-N300 can be configured with IP as dynamic or static.
2. AOE-N300 uses 5454~5474 port, required for port forwarding or DMZ setting.
3. When using a WAN environment, use a public static IP or dynamic IP provided by an Internet service
provider.
4. It is recommended to use a dedicated network.
Features
-REAL TIME 2 CHANNEL AUDIO SIGNAL TRANSCEIVER (TRANSMITTER/RECEIVER) Ethernet to 2channel analog
audio signal real time transmitter, receiver.
- FULL-DUPLEX DATA COMMUNICATION TO ETHERNET NETWORK.
It supports IN/OUT contact data transmission/reception (8 channels each), and serial data
transmission/reception (RS-232C, RS-422)
- EXPANSION OF DEVICE
AOE-N300 supports Multicast (1:70) and Unicast (1:20), making it easy to expand
Overview
Overview
AOE-N300 was developed as a device for remote installation. It enables AUDIO & DATA transmission with a
distributed structure of medium/large-scale broadcasting facilities, when there is a limit to the distance
between audio and data lines, using TCP/IP Ethernet Network to respond to the system.

AUDIO OVER ETHERNET
4AOE-N300
Front Panel
Front Panel
1. MONITOR TERMINAL (PHONES)
Terminal monitoring the output signal of selected channel by using 3.5 Фearphone terminal.
2. MONITOR VOLUME (LEVEL)
Control the monitor output volume.
3. MONITOR OUTPUT SELECT SWITCH
Switch selecting the desired channel output to monitor.
4. SIGNAL LED (INPUT/OUTPUT)
LED displaying the input/output audio signals for each channel.
5. LINK/ACT LED
LED displaying the network status and data status of equipment.
6. LCD
LCD displaying the network (IP, Mac Address, S/W Version, etc.) settings and server connection status in the set.
7. DISPLAY SELECT SWITCH
This switch is for selecting the content displayed on the LCD. Displayed contents will be changed each time
when the switch is pressed.
1) IP Address
AOE-N300 AUDIO OVER ETHERNET
PHONES LEVEL
CH 1 CH 2
CH 1
DISP. MODE
CH 2 CH 1 CH 2
OUTPUT LINKINPUT
MONITOR OUTPUT POWER
CH 1
H
CH
2
I
NPUT
456
12 87
3
ACT
192.168.1.202

AUDIO OVER ETHERNET
5
AOE-N300
2) MAC Address, Bandwidth, S/W Version
3) Audio State
(1) Server on/off state
(2) Sever on, Quantity of Client access device
(3) Client on/off state
(4) Accessed server IP
4) RS-232 State
(1) Server on/off state
(2) Client on/off state
5) RS-422 State
(1) Server on/off state
(2) Client on/off state
6) PIO state
(1) Server on/off state
(2) Client on/off state
8. POWER LED
LED displaying the power supply status of set.
Inter-M:01:05:08
Ver. 1.0.0.1
TX: 3 kbps
RX: 2 kbps
Audio
Server On, 1
Client On
192.168.1.99
RS-232
Server Off
Client Off
RS-422
Server Off
Client Off
PIO
Server Off
Client Off

AUDIO OVER ETHERNET
6AOE-N300
Rear Panel
Rear Panel
1. AC INPUT TERMINAL
This is the terminal for connecting AC power cord. (AC 220V, 60Hz) Do not bend, pull, twist, heat and cut
by force. It may cause electric shock.
2. POWER SWITCH
Switch turning On/Off the AC Power.
3. DC INPUT TERMINAL
Backup battery (24V DC) connecting terminal. In case of black out of AC power, connected backup battery
supplies the power to the device. DC 24V input supplies the power to the set regardless of switch On/Off.
4. OUTPUT TERMINAL
This is the output terminal for the transmitted audio signal. It is a balanced (HOT, COLD, GND) output that
contains 2 channels. Recommended to use with a balanced cable. In case of using unbalanced cables,
connect referring to the figure below.
[Balanced] [Unbalanced]
CONTACT OUTPUT
RS-232C
10/100M BASE-T
RS-422
RESET
AC INPUT 220V~ 60Hz
+-G +-G
CH1
+-G
CH2 CH1 CH2
TX+TX RX+RX
MIN MAX
VOLUME VOLUME
+-G
MIN MAX
POWER
OFF ON
DC INPUT
24V
OUTPUT
INPUT
12
35 9
67 8
4
12345678
12345678
CONTACT
INTPUT
G
-
+
+-G
G
+
+-G

AUDIO OVER ETHERNET
7
AOE-N300
5. INPUT TERMINAL
This is the input terminal for the audio signal to be transmitted. It is a balanced (HOT, COLD, GND) input
that contains 2 channels. Recommended to use a balanced cable. In case of using unbalanced cables,
connect referring to the figure below.
[Balanced] [Unbalanced]
6. AUDIO VOLUME
Control the volume of input audio signal. Control level is (-10dB ~ +10dB)
7. CONTACT INPUT AND OUTPUT TERMINALS
When a contact signal is input to each contact terminal of the transmitting AOE-N300 device, the contact
signal is output from the corresponding contact output terminal of the receiving AOE-N300 device.
Input contact: Contact signal can be input by shorting the pins of each channel.
For example, if channel 1 is shorted, contact closure is input to channel 1.
Output contact: When a contact signal is input from AOE-N300 set as a server, the contact signal of the
corresponding channel is output from AOE-N300 set as a client.
For example, if a contact signal is input to channel 1 of AOE-N300 set as a server, contact signal is output
from contact number 1 output terminal of AOE-N300 set as a client.
※Caution: Contact point signal is only transmitted when AOE-N300 is operated under normal conditions,
and please input the signal after checking out the equipment operation status. Because data is transmitted
in real times, signal will not be transmitted when device is off.
※Example of Usage: After connecting the equipment to be controlled to the contact output terminal of
AOE-N300 at point A, user can control the equipment at point A by control a contact signal from the
equipment in the main building.
※For the AOE-N300 server/client setting method, refer to the software manual on the web page. You can
download the software manual from our website (www.inter-m.net).
G
-
+
+-G
G
+
+-G
12345678
12345678
Output
Input
AOE-N300 AOE-N300
10*/5."*/

AUDIO OVER ETHERNET
8AOE-N300
8. RS-232C/RS-422 COMMUNICATION TERMINAL
The signal input through the RS-232C/RS-422 communication terminal from the AOE-N300 set as the
server is output through the RS-232C/RS-422 communication terminal of the AOE-N300 set as the client.
For example, if you input the signal ‘A B C D’ from the AOE-N300 set as the server, the signal ‘A B C D’
will be output on the AOE-N300 set as the client.
No. 2 pin: RX, No. 3 pin: TX, No. 5 pin: GND [RS-422 communication]
[RS-232C communication]
※Transmit and receive data communication using RS-232C/RS-422 ports supports 1:1
※Example: Connect the device to be controlled to the RS-232/RS-422 terminal of AOE-212 from point
‘A’, and insert the control signal from the main building, then device of point ‘A’ can be controlled.
9. NETWORK TERMINAL
It is network connecting terminal (RJ-45) and supports 100/1G Base-T.
TX+TX RX+RX
AOE-N300 AOE-N300
10*/5."*/
PIN NO Function
1 MX(0)+
2 MX(0)-
3 MX(1)+
4 MX(1)-
5 MX(2)+
6 MX(2)-
7 MX(3)+
8 MX(3)-

AUDIO OVER ETHERNET
9
AOE-N300
AOE-N300 shall be connected by CAT5E, CAT6 cable.
UTP
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
/
Green
3.W/Green
2.Orange
1.W/Orange
3

AUDIO OVER ETHERNET
10 AOE-N300
Applications
Applications
12345678
12345678
CONTACT OUTPUT
RS-232C
10/100M BASE-T
RS-422
RESET
AC INPUT
HCG HCG
CH1
HCG
CH2CH1 CH2
TX+TXRX+RX
MIN MAX
VOLUMEVOLUME
HCG
MIN MAX
POWER
OFF ON
DC INPUT
24V OUTPUT
INPUT
CONTACT INPUT

AUDIO OVER ETHERNET
11
AOE-N300
Education institute, commercial facility, business facility, religion facility, gym, exhibition room, facility, leisure
facility, them park, etc. 1:1 or 1: N functions are flexible to use in any space.
- 1:1 Purpose
- WAN network and LAN purpose (School, resort, theme park, exhibition room, museum, etc.)
W
A
N
AOE-N300 AOE-N300
AOE-N300
AOE-N300
AOE-N300
AOE-N300
AOE-N300
AOE-N300
:LGH

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12 AOE-N300
Block Diagram
Block Diagram
PROCESSOR
AUDIO CODEC
AD DA
CONTACT CONTACT
(OUTPUT 8CH)
(INPUT 8CH)
AUDIO INPUT AUDIO OUTPUT
RS-232C
RS-422
Ethernet
PHY
RJ-45
100/1G
BASE-T
OLED DISPLAY
(Serial Communication)

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AOE-N300
Specifications
Specifications
* Design and specification are subject to be changed for the improvement of product quality without pre notice.
* Signal propagation Latency CL2 Switch 1 via to audio : About 1sec/ Data: about 100ms / Contact : about 100ms.
AOE-N300
AUDIO
Maximum Input Level +20dBV
Maximum Output Level +20dBV
Frequency Response (44.1kHz Sampling, ±1dB) 100Hz~20kHz
THD (44.1kHz Sampling) Less than 0.05%
SNR (20kHz LPF, Input 0dBV, Gain Max) 80dB
Support Sampling Frequency 44.1, 48kHz
Quantization bits 24bit
Data communication
Communication type Contact, RS-232C/RS-422
Contact Input, Output Input 8Channel, Output 8Channel
Serial communication rate 2400bps~115200bps
ETHERNET (LAN) 100/1G Base-T (RJ-45)
General characteristics
Operating temperature -10℃~+40℃
Power Source AC 220V-240V, 50/60Hz, 15W or 24VDC, 0.5A
Weight (SET) 3.02kg/6.65lb
Dimension (SET) 482(W) x 44(H) x 280(D)mm
18.97(W) x 1.73(H) x 11.02(D)in

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14 AOE-N300
482
44 280
440
※ DIMENSIONS

AUDIO OVER ETHERNET
15
AOE-N300
Service
Service
Procedures
Take steps to insure the problem is not related to operator error or other products within the system. Information
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.

NOTE

MADE IN KOREA
November 2020 152533
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 Americas, INC.
5666 CORPORATE AVE. CYPRESS, CA 90630
TEL : [phone], FAX : [phone]
Home Page : http://www.inter-m.net, E-mail : [email protected]
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]