N
ETBELL
NTG W
IRING
Instructions
1
W
IRING
THE
N
ETBELL
NTG
The NetbellNTG unit is a self contained web server configured with various input and output circuits designed to output an audio
signal to a PA system. You should not use voltages through the NetbellNTG product exceeding 48 volts. IT IS NOT SAFE.
1. Connect the 12VDC power supply to a suitable AC outlet and screw the positive wire into the terminal labeled 12VDC and the
negative lead into the terminal labeled GND.
2. Plug an Internet cable into the RJ45/NET connector.
3. Hook up the line in/out to the terminal if using a line driven speaker/PA system. Connection to an amplifier may be neccesary if
driving demanding speakers, refer to the amplifier directions for connections if neccesary.
4. If using a standard 3.5mm audio jack plug the input jack for the speakers into the output jack on the NetbellNTG board.
5. The SD card slot reader is located inside the enclosure, remove the lid to be able to access the SD card reader. We install a
1GB Micro SD card from the factory, however if you need more storage a larger Micro SD card can be used
The output ratings for the NetbellNTG are a 30 ohm impedance at 70mA maximum, and a 2.1V audio signal. Please note
that the headphone jack of the NetbellNTG outputs in DC voltage, and is not suitable to be wired into a power amplifier that uses
AC voltage on its input line, it is not safe and can destroy the product. The line output from the terminal is suited for this and can be
wired directly to a power amplifier that uses AC voltage. Take note of the ohm ratings of your speakers and how they are wired,
make sure you use the following calculation to determine if you are within the amplifiers impedance ratings.
R represents the impedance (ohms)
The NetbellNTG has a stereo line out, a terminal block with left and right outputs, which can be connected to a power amplifier for a
higher volume or the ability to drive larger speakers. Make sure the amplifier has a stereo line input, and is rated to drive the
speakers you wish to connect too. We are not responsible for 3rd party amplifiers or speakers connected to our device, or the failure
of our NetbellNTG when wired incorrectly.
We provide 3 cable types (RVA stereo to line out, 3.5mm stereo to line out, and a 2 ply stranded wire for line in/line
out) to connect your NetbellNTG to an amplifier or PA system, ect. Choose the cable that matches your amplifiers
audio input to be able to wire it to your NetbellNTG.
Thank you for purchasing Linortek NetbellNTG toner generator and controller. All of our controllers come complete with all parts and
software necessary for installation, operation and ability to control the devices attached to it. Upon arrival, please inspect the
contents of the box to ensure that your kit is complete and contains all necessary components.
Each product kit box contains the following:
____One NetbellNTG SERVER
____3ft dual RCA audio cable
____3ft 2ply stranded wire
____3ft 3.5mm Stereo cable
____One 12VDC Power Supply
____One 3 meter CAT5 cable
____NetbellNTG Wiring Instruction
____NetbellNTG Software Program Instruction
____Netbell Setting Instructions
For complete product documentation, current software, web pages and various utilities, visit
https://www.linortek.com/downloads/. The product manual, as well as software updates, are available for download.
