Inter-m AOE-212N User manual

Operation Manual
Audio Over Ethernet
AOE-212N
* Rack mount products in the Western Hemisphere(North America, South America,
and the Caribbean) do not have handles installed due to customer preference.

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!
AUDIO OVER ETHERNET
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.
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.
*CLASS 2 WIRING (Adjacent to speaker terminal): The speaker output of this apparatus can exceed 10 Watts and could be a shock injury.
Connection to speakers should be performed by a skilled person.
*Do not install this equipment in a confined space such as a book case or similar unit.
*This apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such vases, shall be placed on the apparatus.
*This apparatus shall be connected to a mains socket outlet with a protective earthing connection.
*
It has heed to be easy to disconnect the device. To disconnect the device from power, separate AC input cable from inlet or unplug the AC Cord.
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.

AUDIO OVER ETHERNET
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AOE-212N
Contents
Contents
Unpacking.............................................................................................................................2
Installation
Environment ..........................................................................................................................2
Important Safety Instructions .....................................................................................................2
Features.................................................................................................................................3
Composition and accessory.....................................................................................................3
Front Panel............................................................................................................................4
Rear Panel ............................................................................................................................6
Equipment setting using AOE-212N internal CGI server ..........................................8
Device structure block ......................................................................................................20
How to connect ..................................................................................................................21
Applications ........................................................................................................................22
Block Diagram....................................................................................................................23
Specification .......................................................................................................................24
Service
Procedures...........................................................................................................................26
Schematic............................................................................................................................26
Parts List ..............................................................................................................................26
Variations and Options....................................................................................................26
Warranty .............................................................................................................................26
FOR EACH TYPE USER NOTICE
Class‘A’device
(Broadcast device for
business purpose)
This device is business purpose (Class‘A’) and seller or user
should (Broadcast device for business purpose) be aware of it, and
it is to use in other than home.

AUDIO OVER ETHERNET
2AOE-212N
Installation
Unpacking
Unpacking
Although your AOE-212N 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
S3125A

AUDIO OVER ETHERNET
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AOE-212N
Features
Features
THE AOE AUDIO OVER ETHERNET NETWORK IS AN EASY TO USE SOLUTION FOR TRANSPORTING
AUDIOSIGNALS OVER ETHERNET TCP/IP BASED LOCAL AND WIDE AREA NETWORKS (LAN/WAN),
AS WELL AS THE INTERNET.
- 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.
CONTACT: FUNCTION OF IN/OUT CONTACT DATA TRANSCEIVER
(TRANSMITTER/RECEIVER). (EACH OF THE 8 CHANNELS)
COMMUNICATION: FUNCTION OF SERIAL DATA TRANSCEIVER
(TRANSMITTER/RECEIVER). (RS-232C, RS-422)
- EXPANSION OF DEVICE
MULTICAST (1:70) (THIS FUNCTION IS PLANNED TO UPGRADE)
UNICAST (1:20) (THIS FUNCTION IS PLANNED TO UPGRADE)
Composition and accessory
1. AOE-212N main set x1
2. AC power cord x 1
3. 3P terminal block x 4
4. 4P terminal block x 2
5. 16P terminal block x 2
6. RS-232C cable x 1
7. Rack mount screw x 4
8. Lan cable x 1
Network setting
· AOE-212N SET can be set to dynamic IP, or static IP.
· AOE-212N SET use the 5454~5474 port, we need for 5454~5474 port is required for port forwarding or DMZ
setting.
· Used under authorized to provide Internet service providers assign a static IP or dynamic IP in case of WAN
network.
· LAN/WAN use is recommended to use a dedicated network configuration.

AUDIO OVER ETHERNET
4AOE-212N
Front Panel
Front Panel
1. MONITOR TERMINAL
Terminal monitoring the output signal of selected channel by using 3.5 earphone terminal.
2. MONITOR VOLUME
Control the monitor output volume.
3. MONITOR OUTPUT SWITCH
Switch selecting the desired channel output to monitor.
4. SIGNAL LED
LED displaying the input and output audio signals for each channel.
5. LINK / ACT
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 SWITCH
Switch checking out the setting on the display.
When the power switch is ON, the indicator will be it.
Display contents are as below.
1) Inter-M logo + IP Address
AOE-212N 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
CH 2
INPUT
4 5 6
12 87
3
ACT
192.168.1.202

AUDIO OVER ETHERNET
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AOE-212N
2) MAC Address + Bandwidth + S/W Version
3) Audio state
(1) Sever 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
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Rear Panel
Rear Panel
1. AC INLET
Terminal which inputs the AC power.
2. POWER SWITCH
Switch turning On/Off the AC Power.
3. DC INPUT TERMINAL
Backup battery(24DC) 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. AUDIO OUTPUT TERMINAL
It consists of 2-channel with balance outputs (Hot, Cold, GND) with transmitted audio output terminal.
5. AUDIO INPUT TERMINAL
It consists of 2-channel with balance outputs (Hot, Cold, GND) with audio output terminal to be
transmitted.
6. AUDIO INPUT VOLUME
Control the volume of input audio signal.
Control level is (-10dB ~ +10dB)
7. CONTACT POINT INPUT AND OUTPUT TERMINALS
If contact point signal is inserted in each contact point terminal of transmit AOE-212N device,
contact point signal will be transmitted from the contact point output terminal of transmit AOE-212N device.
Input contact point: Contact point signal can be inserted if pin of each channel is short.
Output contact point: Same signals with input signal will be transmitted on the input contact point of transmitter.
CONTACT OUTPUT
RS-232C
10/100M BASE-T
RS-422
RESET
AC INPUT 220V~ 60Hz
HCG HCG
CH1
HCG
CH2 CH1 CH2
TX+TX RX+RX
MIN MAX
VOLUME VOLUME
HCG
MIN MAX
POWER
OFF ON
DC INPUT
24V OUTPUT INPUT
12
35 9
678
4
12345678
12345678
CONTACT
INTPUT
12345678
12345678
Output
Input

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AOE-212N
Caution: Contact point signal is only transmitted when AOE-212N 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: Connect the device to be controlled to the contact point terminal of AOE-212N from point
‘A’, and insert the control signal from the main building, then device of point ‘A’ can be controlled.
8. RS-232C/RS-422 communication terminal
Display the signals inserted in RS-232C or RS-422 terminal on the rear of AOE-212N on the RS-232C and
RS-422 terminals of AOE-212N. For example, if signals, ‘A B C D’ are inserted in the transmitter, signals
‘A B C D’ will be displayed on the receiver.
RS-232C communication: No. 1 pin (Rx), No. 3 pin (Tx), No. 5 pin (GND)
RS-422 communication: Tx+, Tx-, Rx+, Rx-
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 10/100 Base-Tx.
L
A
N
/
W
A
N
6000
SERIES
6000
SERIES
MAIN POINT
L
A
N
/
W
A
N
MAIN POINT

AOE-212N
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AUDIO OVER ETHERNET
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Equipment setting using AOE-212N internal CGI server
Equipment setting using AOE-212N internal CGI server
It provides the web-page to check the status and control of AOE-212N.
1. Accessing AOE-212N Web-page
1.1 Access to the web-page by using internet browser (Explorer, Chrome, FireFox, etc.)
1.2 Insert the IP address displayed on the front LCD of AOE-212N. If it is connected normally,
user verification window will pop-up.
1.3 User verification is required to access the AOE-212N web-page.
Default value for factory setting is as below.
User name: admin, password: 1(number).
Please be sure to change the password after the connection you use.
2. Network Setup
Content Default Sample Value
MAC address Display the MAC address the device. 00:1D:1D:NN:NN:NN
Host name
Displays the name of device. If it displays the location of device,
management will be convenience. Text only (Incl. digits, no space)
is applicable.
aoe-212n
IP address Setup the IP address of device. There are two ways“: Dynamic
IP assignment from DHCP Server” and “Manual Setting” Manual Setting
IP address Setting a Static IP address 192.168.1.99
Subnet Mask Setting to the Subnet mask. 255.255.255.0
Gateway Setup the gateway of network connected to the gateway. 192.168.1.1
DNS 1 server Setup the address of DNS1 server. 168.126.63.1
DNS 2 server Setup the address of DNS2 server. Follow the setup of property
setup of device. 168.126.63.2
Set Apply and save the changed contents by using the
button after changing the setup of SET device.
Clear Restore all setups to default values by using button

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AOE-212N
3. Audio Setup
Content Default Value
Mode Setup the audio transmission mode. PCM, uni-cast
Audio Client Setup to receive the audio from another AOE-212N.
Port Setup the connecting port value to receive the audio. 5454
IP Address Setup the IP address to receive the server address audio. 192.168.1.99
Buffer rate The buffer rate is set according to the receiver's network. 3%
Run Check to activate audio receiving.
Audio sever Transmitting audio to other AOE-212N.
Sampling Rate Set the sample rate of the audio signal. 44100
Channels
INPUT CH 1 is selected; the sender channel 1 is
transmitted to the receiver AOE-212N and
is outputted on the receiver's CH1 audio output.
INPUT CH 2 is selected; the sender channel 2
is transmitted to the receiver AOE-212N and is
outputted on the receiver's CH2 audio output.ㅍ
1
Port Setup the connecting port value to transmit
the port audio. 5454
Sever Address Set the server address for Multi-cast audio
transmission mode. 224.124.0.1
Run
Sets‘Run’to begin audio transmission.
The equipment list of equipment being sent to the
serial communication serial server run-time will be displayed.
Set Apply and save the changed contents by using the
button after changing the setup of SET device.
Clear Restore all setups to default values by using button.

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4. Serial Setup(232)
Content Default Value
Setting Setup the property of serial communication (RS-232C).
Baud Rate Setup the communication speed of serial port. Scope is
2400bps~115200bps. 9600
Connection Connection setup to transmit the serial communication.
Port Default port value to transmit the serial communication. 5455
IP Address Setup the IP address to receive the serial communication. 192.168.1.99
Run Setup the Run of serial communication receiving.
Serial service Setup to transmit the serial communication to other AOE-212N.
Run
Sets ‘Run’ to begin serial communications transmission. The
equipment list of equipment being sent to the serial communication
serial server run-time will be displayed.
Set Apply and save the changed contents by using the
button after changing the setup of SET device.
Clear Restore all setups to default values by using button.

- Serial Setup(422)
AUDIO OVER ETHERNET
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AOE-212N
Content Default Value
Setting Setup the property of serial communication (RS-422) port.
Baud rate Setup the communication speed of serial port. Scope is
2400bps~115200bps. 9600
Connection Connection setup to transmit the serial communication.
Port Default port value to transmit the serial communication. 5456
IP address Setup the IP address to receive the serial communication 192.168.1.99
Run Select ’Run’ to begin serial communication receiving.
Serial Service Setup to transmit the serial communication to an other
AOE-212N.
Run
Sets ‘Run’ to begin serial communications transmission. The
equipment list of equipment being sent to the serial communication
serial server run-time will be displayed.
Set Apply and save the changed contents by using the
button after changing the setup of SET device.
Clear Restore all setups to default values by using button.

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5. Data Setup
Content Default Value
Data Client Setup data transmit (Contact point).
Port Set the default data transmit port value. 5457
IP Address Setup the IP address to receive data. 192.168.1.99
Run Set ‘Run’ to activate data receiving.
Data Service Setup to transmit data to other AOE-212N.
Run Sets ‘Run’ to activate the data transmission. A list of
available data transmission equipment being will be displayed.
Set Apply and save the changed contents by using the
button after changing the setup of SET device.
Clear Restore all setups to default values by using button.

6. SASS Setup
AUDIO OVER ETHERNET
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AOE-212N
Content Default Value
Enable/Disable Setup to enable/disable SASS. Disable
Server address Server address to update the information of device
by using DDNS. None
SASS Port Setup to SASS port. 1665
Audio Port Set the audio transmit port. 5454
Serial(232) port Set the serial (RS-232C) communication transmit port. 5455
Serial(422) port Set the serial (RS-422) communication transmit port. 5456
Data port Set the data transmit the port. 5457
Period for try Time period to access the server. Scope is 1~60 minutes. 5 minutes
Set Apply and save the changed contents by using the
button after changing the setup of SET device.
Clear Restore all setups to default values by using button.

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7. Time Setup
Content Default Value
Time Zone Set the time in accordance with GMT. GMT+09:00
Current Time Current time in accordance with set GMT. 1970.01.01
Time Setup Setup the time for AOE-212N.
Manual Setup Setup the time manually by user.
Automatic time
synchronization
If device is connected to internet, time can be synchronized
automatically by using the time server.
Time server
address :
Time.bora.net
GMT Change Change the GMT.
Set Apply and save the changed contents by using the
button after changing the setup of SET device.

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AOE-212N
8. View Log
Content Default Value
View Log
Check the system information such as setup of device and
upgrade information, etc. Recorded information is recorded
with time and date.
Delete Log Press the delete log button to erase the log, the log records
will be deleted.

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9. Upgrade System
Content Default Value
Find File
Select the file to upgrade the AOE-212N.
Select the file you want if file explorer is opened by pushing the
button next to the text box. Only *.tar‘file can be selected.
SET
Upgrade the device after selecting the file
Go to next step if confirm is pushed.
It will take about 1 minute to upgrade the system.
System will restart after upgrading.

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AOE-212N
10. Restart System
Content Default Value
Restart System Restart the device.
Set Restart the device by using the button.

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11. Factory Set System
Content Default Value
Factory Set
System
Restore the device to factory setting.
All information will be deleted.
Set Restart the device by using the button.