Netbell-KMB

Quick Setup Guide
⏱ Estimated Setup Time: 20–40 Minutes

1 Basic Setup 2 Initial Configuration 3 Clock and Push Button Setup

Step 1 – Unbox and Identify Core Materials

Unbox all components and compare with the included packing list.

  • 24VAC Power Supply

  • Power Cable

  • RJ45 Ethernet Cable

  • Netbell Setting Instructions

  • Netbell-KMB Installation and wiring Instructions

Step 2 – Wiring you Netbell-KMB

Powering your device and connecting it to your network

  • Power

    Identify the 24VAC transformer and power cable (Circular 2-pin connector)

    1. Loosen the screws on the two outer AC terminals of the 24VAC transformer Note: Do not use the center GND terminal.
    2. Insert each conductor from the cable into a separate AC terminal.
    3. Tighten the screws to secure both wires in place. Note: Ensure no cable sheath is inserted into the terminals, only the exposed conductors should be clamped.
    4. Give each wire a gentle tug to ensure secure

  • Ethernet

    Identify the RJ45 (Ethernet) cable.

    Connect the Netbell-KMB’s NET port to the destination network switch.

    Verify that the yellow and amber link/activity LEDs are illuminated and blinking on both the switch and the Netbell-KMB.

    Note: The Netbell-KMB’s link lights are located inside the unit’s casing on the internal RJ45 port on the circuit board.

Step 3 – Configuring Tone Set

Using the tone selector switch to select 4 useable tones.

  • Identifying desired tones

    The Netbell-KMB can be configured to use a set of 4 tones out of 152 total tones.

    Tones are selected by as set of 4 with a base Grund tone and 3 external tones.

    As a basic rule, the desired base tone is set with the tone selector switch on the board. The corresponding additional tones (C1, C2, C1+C2) can be gathered from the table shown to the right “Selection of the tones“.

    When you put the switch on UP position, that switch is set as OFF. To set the switch ON, put it to DOWN position. Tone#9 is set as the base tone by default, from the Selection of the tones chart, switch 3 is set at ON (down).

    To access the switch, put the Netbell-KMB connector side facing you, open the lid of the Netbell-KMB server, you will see a line of Tone Setup switches marked from 1-6.

    The audio files can be listened to with the following link: Netbell-KMB Standard Tone List.

    Cross reference the “Selection of the tones” table and adjust your tone selector switch accordingly.

  • Identifying relays to tones

    Once you’ve chosen a tone set document the following:

    • Grund tone : Relay 1
    • C1 tone: Relay 1 and 2
    • C2 tone : Relay 1 and 3
    • C1 + C2  tone : Relay 1, 2, and 3

    This will be used in later configuration of the Netbell-KMB.

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Step 4 – Accessing the Configuration Portal

Finding the Netbell controller on your network, accessing the web server, and applying network configurations

  • Using Linortek Discover to find your Netbell

    Download and install the Linortek Discover desktop app using the link provided below.

    Linortek Discover for Window

    The program you download from our website is a zip file, you will need to extract the file first after downloading. After extracting the zip file, you will see a file called “Linortek_Discover_Windows.exe”, double click the file, you will most likely to see a popup window stating that “Windows protected your PC, Microsoft Defender SmartScreen prevented an unrecognized app from starting. Running this app might put your PC at risk.” with a “Don’t run” button.

    You need to click “More info”, the app name, publisher information will display, click “Run anyway” to open the app, it won’t harm your computer.

  • Finding your device’s IP address and Setting Network Configurations

    Access using Discover:

    By default, your device comes with DHCP enabled meaning if configured a DHCP server will automatically assign it an IP address.

    Once started the Discover application should display the Linortek devices on your network. If multiple Linortek devices exist use the MAC address printed on the device to identify the target device.

    Click on the target device to access the web server.

    Note: It is recommended that the device running discover is on the same LAN/VLAN and subnet of the device. Otherwise, it will not be listed or easily accessible unless inter-VLAN routing is configured.

    If you’re unable to find your device using Discover:

    Open Command Prompt (Windows) or Terminal(macOS) and run the following “ping SERVER”. If you get a response, copy the IP address of the responding device and paste it into the address bar of a browser.

    Additionally, you may use an IP scanner to identify devices on your network, then use the MAC address printed on the device to identify the IP held by the device.

    Lastly if all previous attempts fail, connect the ethernet cable from the device directly into your computer. Using a web browser enter 169.254.1.1 into the address bar (this is your device’s default IP address)

    Logging in:

    When prompted to login enter the default credentials Username: admin, Password: admin.

    Assigning a static IP:

    It is recommended but not required to set a static IP address to ensure reliable access to the web server. If left with DHCP enabled, it’s possible that a new IP address is assigned in the future and the use of the discover tool will be needed for future access.

    To assign a static IP go to Configure -> Network Config. Disable the “Enable DHCP” check box and enter your network configuration as needed. Document the IP address assigned for future access.

Step 5 – Configuring your Device

Configuring Time, bell schedules, push buttons, and bell duration.

  • Setting Time and Date

    When first configuring your Netbell, you will need to verify the time and date on your home page. Your Netbell is configured by default to use Eastern Standard Time (GMT-5) and will automatically adjust for Daylight Saving Time. If your location is not in the Eastern Time zone, please make sure to set your Time Zone first. Using an incorrect time zone will cause the bells to ring at the wrong time.

    To set your Time Zone:

    • Go to Settings > Time/Date
    • Enter your local Time Zone (for example, -5 for Eastern Time Zone, -6 for Central Time Zone, -7 for Mountain Time Zone, -8 for Pacific Time Zone)
    • Make sure the Use NTP Update box is checked (when this box is checked, the Netbell will update its time from the NTP server every 30 minutes by default)

    Note: If an ethernet connection is not supplied during normal operation, the Netbell will be unable to receive NTP updates. This can lead to a misalignment of you schedule over time. To fix this provide an ethernet connection and either manually correct the time in the time textbox or set NTP Interval text box to 1, receive an NTP update, and set it back to 30 afterwards.

  • Bell Schedules

    Configuring your bell schedule:

    1. Go to Services -> Bells
    2. In the Name textbox enter a name for the scheduled event
    3. Set the time using the dropdown boxes next to the time label. The following is the format for time HR:MIN:SEC. Note: Your entry needs to be in 24HR format. Ex. 3PM -> 15:00:00
    4. Set the duration for the bell using the following format. # + drop box selection (mS,Sec,Min)
      1. Note: The duration field will dictate how long the tone will play
    5. Skip if recurring bells are needed. Select the calendar drop-down and select a date.
    6. Click Add

    Your scheduled bell now exists, by default it will activate relays (Bells)1 and 2(C1), M-F.

    To target a different tone simply enable or disable the PIP’s selected by clicking on them to match the relays previously documented

    Saving your bell schedules:

    Save your bell schedules to create backups in case of data loss or to switch in and out multiple schedules.

    To do so click download in the lower right, you should see a screen with a CSV representation of your schedule. Copy the entirety of this data including #start into notepad and save as a .txt file.

    Uploading bell schedules:

    As if you were creating a bell schedule entry, enter #upload in the Name textbox and click add. You should be prompted with the bells upload page, click Choose File and select the desired bell schedule. Click upload and your bell schedule will be applied.

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Unbox and identify accessory materials

Unbox additional components and compare with the provided packing list. The items below are additional devices that may live in Netbell-K system

  • 4" LED Digital Clock

    Note: The following compatible devices is required:
    •Netbell KMB-C

  • Emergency Palm Push Button Switch - Momentary

  • Emergency Palm Push Button Switch - Maintained

4″ LED Digital Clock Setup

Setting up your 4″ LED Digital Clock

  • Wiring

    Identify the single cable connected to the 4″ LED digital clock.

    Secure the cable’s circular 2-pin connector to the clock port on the KMB-C by screwing it into place.

  • Clock Activation

    To activate the clock, log in to the device’s web interface and navigate to Settings → Settings.

    In the UART Usage field, enter “Clock”, then click Save to apply the changes.

    Note: The clock displays the time maintained by the device. Once the device time is properly configured, the LED clock will update accordingly.

Push Button Setup

Wiring and configuring push buttons for manual bell activation

  • Wiring

    The server provides one bell output that supports connection of up to two external bells. This output is a dry contact, so an external power supply is required when wiring the bells to the server.

    If connecting two bells/buzzers, they should be wired in parallel.

    Note: Netbell K-M2 models include an additional output, allowing up to two more external bells to be connected.

    Wiring:

    Identify the 12VDC power adapter and bell cable.

    • You can extend the bell cable if needed, maximum of 250 feet with 18AWG cable and 500 feet with 16AWG.
    • Connect positive wire (+) of the power supply to the positive (+) red wire of the bell.
    • Connect negative wire (-) of power supply (marked with white stripe) to one side the bell cable, connect the black (-) wire of the bell to the other side of the bell cable.

  • Configuring Digital Inputs

    Before configuring the digital inputs, ensure the correct setup for your input device. If using a simple dry contact button or door switch (all buttons sold are dry contact), open the Netbell-K casing and locate the DIN switches.

    Set DIN Switch 1 (IN1) to the UP (PU) position, away from the “IN1” label on the circuit board.

    Activating Digital Input

    Navigate to Services → IN/OUT.

    Click the Edit icon for DIN 1, then configure the following:

    • Check the Use box
    • Set Display to Dot
    • In the Command (L/Z/N/I) field, enter “Invert”

    Click Save to apply the changes.

    Linking Relays to DIN

    Navigate to Tasks.

    Identify the tone you’d like to trigger and the corresponding relays to activate it.

    For each relay that needs to be active do the following:

    Select an unused schedule entry and click the Edit icon, then configure the following:

    • Check the Use box
    • Set Device A to Digital
    • Set Data A to 1S=1
    • Set Device C to Relay
    • Set Data C to the desired relay number (e.g., 1)
    • Set Action to ON
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FAQ’s

There are two main methods to manually activate a sound for evacuation on your Netbell device without requiring additional hardware:

Method 1: Web Interface

  1. Log in to your Netbell device’s webpage
  2. Navigate to the Services + Relays page
  3. Click the red dot under the State tab
  4. This will manually activate the evacuation bell

Method 2: RESTful API via Mobile App

You can use the device’s RESTful API to activate the relay (bell) through a third-party mobile application:

  • For iPhone users: Rest-HTTP API Client (or similar apps)
  • For Android users: Various free REST API client apps are available
  • These apps allow you to send API commands to trigger the evacuation sound remotely

Are there other activation methods available?

Yes, the most straightforward method would be using a physical push button. However, the web interface and API methods described above provide the manual control you need without requiring any additional hardware.

Which method is recommended?

  • Web Interface: Best for manual activation when you have computer/tablet access
  • Mobile API: Ideal for remote activation and emergency situations when you need to trigger the alarm from anywhere with internet connectivity

Both methods provide reliable manual control of your evacuation system without the need for additional buttons or accessories.

The most common issue we have seen this happen is if your computer uses WiFi, and the WiFi network is on different subnet of your Linortek device connected to. Make sure the Linortek unit is on the same subnet as your computer.

The other possible issues might be the firewall on your network or your computer blocking the communication, talk to your IT department and make sure UDP port 30303 is allowed. If you use Windows computer, you can try to open Command Prompt and type there: “ping server”. If you get “Reply from” please open a browser and type this IP address to the URL line.

If you still have problems, you can connect the unit directly to your ethernet port on your computer, the factory default is 169.254.1.1.
Type the IP address into a chrome or Firefox and it should bring you to the Login web page.

It is recommended to power you Linortek devices with a surge protector, as power surges can temporally cause software hangups or even permanent hardware damage.

In the case with no surge protector, please perform a factory reset on your device.

NOTE: This will reset your network (DHCP enabled), time, and tasks configurations.  You will need to re-discover your device’s IP and set your configurations to their previous state once the device.

Additional Resources

Full Manual Full Manual

Full Manual

For more information follow the Netbell Manual

Remote Device Setup Remote Device Setup

Remote Device Setup

Configuration instructions for remote push buttons and remote Netbell device communication.

Video Tutorials Video Tutorials

Video Tutorials

Check our Video Tutorials for step-by-step instructions.