Netbell - Ultra 300 Network Bell Controller

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USD $531.00
Netbell - Ultra 300 Network Bell  Controller
Netbell - Ultra 300 Network Bell  Controller
Netbell - Ultra 300 Network Bell  Controller
Netbell - Ultra 300 Network Bell  Controller
Netbell - Ultra 300 Network Bell  Controller
Netbell - Ultra 300 Network Bell  Controller
Netbell - Ultra 300 Network Bell  Controller
Netbell - Ultra 300 Network Bell  Controller
Netbell - Ultra 300 Network Bell  Controller
Netbell - Ultra 300 Network Bell  Controller
Netbell - Ultra 300 Network Bell  Controller
Netbell - Ultra 300 Network Bell  Controller
Netbell - Ultra 300 Network Bell  Controller
Netbell - Ultra 300 Network Bell  Controller

Netbell - Ultra 300 Network Bell Controller

USD $531.00
Model Number: 01-910-00125
Please note: we are working on the final testing for the Ultra 300 boards, pre-order now to get 20% off with coupon code ULTRA2022, we will ship your Ultra 300 boards out before 12/31/2022.
Oops! Please select if you need a push switch.
Please Select If You Need A Push Switch, With A Push Switch Connecting to one of the digital inputs, You Can Trigger Emergency Alarm manually
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This controller is designed for only low voltage control (no more than 48 volts). If you need to control a device greater than 48V, you will need to use this interface relay kit.
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Manufacturer: Linortek
  • Description
  • Specifications
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The Ultra 300 is the latest development of Linortek web-enabled Ethernet I/O controller with MQTT protocol, hardware-based encryption. It supports HTTPS connections, encrypted email servers, CAN interface, increased in RAM and FLASH memories and so many more new features. With the web-based bell scheduling software installed on the Ultra 300 controller, it makes the Ultra 300 a great fit for schools, factories and corporations who are looking for a simple and reliable timed alert solution while data security is a big concern.

The Netbell-Ultra 300 is a network enabled bell controller that is built on a TCP/IP platform with a built-in web server and special software designed for scheduling a bell system, all software and mounting hardware required for installation and operation are included. With the built-in web interface, you can access, control and schedule bells over a network or the Internet from a web browser, no additional software to install on your PC, no 3rd party devices is required.

The Netbell-Ultra 300 is housed in a Din-rail mountable enclosure. There are 2 relay outputs (dry contact, signal relay, 2 Form C, 1A @ 30VDC) to control up to 2 bells/buzzers or other signal equipment. With the digital inputs you can wire a push switch for ringing bells manually for emergency. With the updated web-based bell scheduling software, you can easily define and set up to 10 different schedules, such for regular schedules, half-day schedules, holiday schedule and more. Each schedule can include up to 500 weekdays/calendar-based events, switching schedules is simple: just login to your device, select the schedule you want to use, and switch it with a simple click!

The Key Features

•COMPACT AND SELF-CONTAINED:  Network enabled, all-in-one automatic bell controller with the hardware and software you need to control your timed alert system. No extra software or designated computer required. Adding schedules from any computer on your network without having to go through the firewall

•FULLY PROGRAMMABLE: Up to 500 programmable event schedules, each event can be set to a different duration for different break time. Create different schedules for different events and switch the schedules as needed with a simple click.

•EASY TO USE: With the built-in remote function and BellScheduler desk app, you can manage & schedule multiple Netbell devices whether in a single building, multiple buildings or multiple locations from one easy-to-use interface, without the need of logging in to each device or hard-wiring the bells to a central control station, making the management of your bell systems incredibly easy

•EASY TO INSTALL: Use as either a network or a standalone device, connect to network or directly to computer for initial setup then it will work as scheduled. With the built-in Real Time Clock and user settable NTP server, you can accurate control of when the bells ring (HH:MM:SS, MM/DD/YYYY, SUNDAY-SATURDAY) or pull the time from your existing NTP server

EASY TO EXPAND: Each Netbell device is a web SERVER, it’s an independent system which includes its own hardware and software, you can add more units as your business growing without significant infrastructure changes

What's in the Box

Each Netbell-Ultra 300 includes:

  • Netbell-Ultra 300 SERVER
  • One 12VDC power supply
  • One 1-meter RJ45 network cable
  • DIN Rail mountable clip

Power Requirements

  • Power Input: 5-48 VDC

Relay Outputs

  • Numbers of relay output: 2
  • Dry contact, signal Relay,2 Form C, 1A @ 30VDC

Digital Inputs

  • Numbers of digital input: 2
  • Two modes of operation for the digital inputs:
  • Isolated mode (ISO): 5-24VDC@30mA max
  • PULL UP mode (PU): used with a switch to activate a signal

Analog Inputs

  • Numbers of analog input: 2


  • Up to 10 sets of schedules

Bells Scheduler

  • Weekday or calendar-based: (HH:MM:SS, MM/DD/YYYY, SUNDAY-SATURDAY)
  • User settable duration: mS, Sec, Min

Real-Time Clock

  • NTP automatic Internet time setting
  • NTP Sync Period: User settable
  • Automatic Daylight Savings Adjustment
  • Battery (capacitor) Power Backup

Capacitor Power Backup

  • Backup Functions: Retain Real-Time Clock, basic settings
  • Backup Duration: 2 weeks minimum


  • Type: 10/100 Base-TX POE Ethernet Port
  • POE: IEEE 802.3af
  • Setup: Static or DHCP IP address configuration


  • Power: Micro USB connector
  • External temperature & humidity: Mini USB
  • Network: RJ-45
  • Relay output: Spring-cage pluggable terminal blocks, NC-C-NO
  • Digital input: Spring-cage pluggable terminal blocks, C- A
  • Analog input: Spring-cage pluggable terminal blocks, A – N
  • CAN: H-L

LED Indicators

  • Number of LEDs: 5
  • Pulse: Red, power on
  • Boot: Green, boot mode
  • Locate: Blue, device locator
  • Network: Orange, network connected, green: activity


  • Operating Temperature: 0 to +70 Celsius
  • Storage temperature from -40 to +125 Celsius
  • Humidity from 10% to 90% non-condensing
  • Dimensions: 70mm x 100mm x 25mm
  • Weight: 11 oz
  • Enclosure Material: POLYLAC® PA-765A Acrylonitrile Butadiene Styrene (ABS)
  • Enclosure Flame Rating: UL94



Email Notifications

  • Encrypted Email Alerts: STARTTLS and TLSL/SSL
  • Alert Functions: Fully customizable: alerts can be scheduled, or based on input/output data/state changed
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