Linortek Netbell-NTG User Manual

1
Master-Slave Setting Instructions for Emergency Notification Using
Netbell-NTG and Koda100 Controllers
All of the devices we manufacture include a remote function that can deliver a signal from one controller to control
other device(s) in multiple locations. With the capability of playing live and pre-recorded messages on the Netbell-NTG
industrial PA system, you can use it with the Koda 100 Ethernet I/O controllers to build a network emergency
notification system. The feature is useful for schools or factories that have a need for audible signals in separate areas or
multiple buildings where running additional wiring is too expensive or not practical.
In this instruction, we use a Netbell-NTG PA system and two remote switches to activate the emergency sound. Each
remote switch is connected to a digital input of the Koda 100.
Environments:
• The system will be installed on the same building, all network switches are on the same subnet.
• Running wires across the buildings are not practical.
Functions required for the system:
• Any person on the plant floor/office can press an alarm switch if an emergency is spotted and the speakers in
the facility will play the pre-recorded emergency sound.
• After the pre-recorded message is played, it will turn off automatically unless you push one of the switches to
trigger the sound again.
Devices to use
• One Netbell-NTG PA system: One Netbell-NTG tone generator controller, multiple horn speakers, one mixer-
amplifier.
• Two Koda 100 Ethernet I/O controllers: Each push switch will need a Koda 100 controller to send the signals to
the Netbell-NTG controller to activate
the sound.
• Two Push Switches.
Devices installation map
As shown on the map. Here are the devices
installed in the building, to better explain the
system setup process and software
configuration, the Netbell-NTG is used as the
Slave controller and named SLAVE in the
software configuration. The Koda 100 devices
are used as Master controller, named as
Master 1 and Master 2.

Linortek Netbell-NTG Specifications

General

Model	Netbell-NTG
Network Interface	Ethernet
Protocols	TCP/IP, HTTP
Power	12V DC
Scheduling	Yes
Audio Output	1 Channel
Network	Ethernet
Power Supply	12V DC
Form Factor	Compact
Web Interface	Built-in web server for configuration and control

Summary

System Overview and Installation Map

Devices Installation Map

Diagram showing the physical layout and connection points of Netbell-NTG and Koda 100 controllers in the system.

Wiring Procedures

Wire Netbell-NTG PA System

Instructions for connecting the Netbell-NTG to speakers and amplifier for audio output.

Wire Push Switch to Koda 100 Digital Input

Connecting alarm switches to the digital input ports of the Koda 100 controller.

Slave Controller Configuration (Netbell-NTG)

Network Configuration

Setting up network parameters like IP address and hostname for the Netbell-NTG controller.

Assign Tone to Relay

Configuring the Netbell-NTG to associate an audio file with a specific relay for activation.

Enable Audio File System

Activating the audio file system on the Netbell-NTG to allow playback of custom sounds.

Master Controller Configuration (Koda 100)

Link Slave Controller via IP Address

Configuring the Koda 100 master to recognize and communicate with the Netbell-NTG slave controller.

Activate Digital Input for Triggering

Setting up a Koda 100 digital input to act as a trigger for a specific relay event.

Master Relay to Trigger Slave Relay

Establishing the link between a master controller relay and a slave controller relay to activate the alarm.