Karak Electronics Sotec series User manual

Network Amplifier
KUT-NA 35/65/130/250/500
Operating Manual

Unpacking and Installations
1
Features
1
Operating elements of Front panel
2
Operating elements of Rear panel
3
System Connections
4
Setting IP Address
6
System Start
7
System Menu
8
Block Diagram
9
Specifications
10
Accessories
10
Warranty Policy
11

Unpacking and Installations
KUT-NA Series Products are made by KARAK Electronics Co., Ltd based on the
experience and technology accumulated for more than 30 years, and can fully meet your
demands.
Before using, please read through this operating manual well in order to fully utilize the function
of this product, and also use the product of KARAK Electronics for a long time with the correct
way of use.
Please be careful not to install the product at following places, as it may cause the trouble.
• Places exposed to direct sunlight, or places close to heating units such as steam, heater, stove
etc.
• Places poorly ventilated, or with much moisture or dust.
Features
• This device is a TCP/IP Network-based Class-D Amplifier for Public Address System, developed by
applying the AoIP Technology which is the cutting-edge digital technology.
• It is a Network Terminal Equipment to run the Speaker by converting the Digitalized sound source
into Analogue after digitally amplifying it at the Network of Public Address System composed of
KARAK Electronics' TCP/IP Network.
• Model Number is given to this product according to the Output Power as follows;
• It can accommodate 16 Units of KUT-NG20 to extend the Output Contacts.
• It can be composed as Ring or Tree Network, and the Reliability of Network is guaranteed by Ring
Redundancy.
• General Ethernet Port supports Auto-MDIX, and there is no need to consider separate Cabling.
• All the function and condition of the Amplifier can be checked through the VFD Display Window.

• It provides 8 Audio Outputs.
• Speaker Output of each Channel is composed of COM, 8Ohm, 75V, 100V.
• Protective function is built-in against the Overcurrent, Overvoltage, and Overheat of the Amplifier.

Operating elements of Front panel
1. POWER LED
It shows the Power Supply status. The Light is switched on when the Power Source is
normally authorized.
2. SHUTDOWN
It brinks if any trouble is found at Audio Output Channel.
It turns off when the trouble is solved.
3. DISPLAY
It is a window to show Main Information. Please refer to the "Menu Explanation"
for more detailed explanations.
4. ROTATING SWITCH
It is a Rotating Switch to select Main Information Menu.
You can select the Display Menu by rotating the switch.
5. GUIDE FOR RACK MOUNT
It is a Guide to fix to the Rack in case of Rack Mounting.
Operating elements of Rear panel

1. It is a terminal to send the Amplified Audio Outputs, and is connected by 2 connectors included in
the product.
2. This is Ethernet RJ45 Port to be connected with KRNET.
(Used for the composition of Tree Network only.)
3. This is Ethernet Optic Port to be connected with KRNET.
Division
Content
Giga Optic
Used for composition of Tree Network
Ring Port1
Used for composition of Ring Network
Ring Port2
4. This is an Input Terminal of AC Power Source.
5. This is a Terminal through which 24V Power is supplied by Lead Storage Battery
in case of Power Outage.
6. This is an IP Setting Switch.
7. This is a 485 Terminal to connect when using KUT-NG20.
8. This is a Power Source Authorization Switch.
Division
Content
Power supply
Power Shut Out

Setting IP Address
System may not be normally operated if you change it thoughtlessly without
understanding of the site, as IP Address is decided according to the site design.
1. There are 2 IP Setting Switches.
2. This means 1 digit of each hex.
3. Input Range is 0~255.
4. {(1st Switch Number * 16) + 2nd Switch Number} means the 4th Digit Value
of IPv4 IP Address.
5. If you divide the 4th value of required IP Address by 16, the Quotient is the first
Switch Value, and the Remainer is the second Switch Value.
Setting Example)
①Set the IP with “192.168.100.3”.
Quotient of is 0 , and Remainder is 3.
So, first is „0‟, second is „3‟.
②Set the IP with “192.168.100.50”.
Quotient of is 3, and Remainder is 2.
So, first is „3‟, second is „2‟.
③Set the IP with “192.168.100.179”.
Quotient of is 11, and Remainder is 3.
So, first is „B', second is ‟3„.
※Network IP is 192.168.100.xxx basically.
※This is the Number Table corresponding to each Number of Switch.

Rotary
Value
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Decimal
Number
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

System Start
1.Set the 4th Value of IP with switch.
*Referto"SettingIPAddress"formoredetails.
2. Connect with KRNET.
*Referto"SystemConnecting"formoredetails.
3. Connect the Audio Output Terminal.
4. Connect the Power Cable, and press the
Switch for Power supply.
5. CheckifPOWERONLED islitupnormally.
6. Check if IP address is normally displayed
as you set.

System Menu
1. Composition of Display Screen is as follows;
2. Menu Area - This is a Title on the Information to be displayed.
3. Information Area - This shows the Information on Title.
4. Menu Explanation
Menu Area
Explanation
Model Name
Shows the Model No. of the Equipment.
IP Address
Shows the IP Address of the Equipment.
MAC Address
Shows the MAC Address of the Equipment.
Firmware VER
Shows the Firmware Version running at the Equipment.
Connection Host
Shows the Connection Status with Host.
<None>
No Connection is made with Host.
<PHY>
Physical Connection only with Host.
<PHY> <KACP>
PhysicalConnectionwithHost,andConnectionwithDiPanos
Program.
5. Event Message Explanation
Message
Explanation
Protection Signal Occur
Occurs when there is some trouble at Channel.
After flashing the message, it scrolls to check if there is any
problem with each Channel.
MENU SECTION
MENU
INFORMATION SECTION