Netbell-NTG Tone Generator
Tone Generator with Scheduling


Linortek Netbell-NTG Network All-In-One Multi-Tone/Message Generator/Controller for School Factory Industrial Public Address (PA) or Intercom System. In stock, fast shipping. 01-910-00059

Retail Price: $831.00
Our Price: $748.00
 
 
Tone Generator and Controller
 

Netbell-NTG Tone Generator with Scheduling

Description

The Netbell-NTG tone generator is a network-based audio controller designed to add scheduled tones and announcements to an existing PA or intercom system. It combines a tone generator and scheduling controller in one device, allowing automated break signals, shift alerts, and routine announcements to play through installed speakers. Programming is performed through a web browser interface, and schedules are stored internally so the system operates independently once configured.

The NTG connects directly to a network and outputs audio tones or recorded messages to an existing paging or sound system. Built-in scheduling allows multiple daily events with selectable tones or messages assigned to each event. The system includes standard tones and supports custom recorded messages for different alerts or operational announcements. Because the unit generates audio directly, it eliminates the need for separate bell hardware when a speaker system is already installed.

This configuration is typically used in manufacturing facilities, schools, warehouses, and large commercial environments where audible communication is handled through a PA system rather than physical bells or buzzers. The network-based design allows schedules to be adjusted remotely while maintaining a single timing source for all automated audio alerts. The NTG is commonly installed when upgrading older bell systems or when expanding a paging system to include automated signaling and reminders.

Compatibility and Usage

  • Designed for existing PA or intercom speaker systems
  • Network-connected tone generator with built-in scheduling
  • Web-based programming and internal schedule storage
  • Supports standard tones and custom recorded messages
  • Used for shift changes, breaks, announcements, and alerts
  • Stand-alone operation after setup

FAQ

Does this replace bells or buzzers?
Yes. The NTG generates tones or messages through speakers instead of physical bells.

Is special software required?
No. Setup and scheduling are performed through a standard web browser.

Can different tones be used for different events?
Yes. Different tones or messages can be assigned to individual scheduled events.

Related Items

  • Netbell Network Bell Controller
  • Network Buzzers In A Box System
  • Industrial 110V Vibrating Buzzer
  • Manual Ring Button
  • Bell and Buzzer Wire (25 ft / 50 ft / 100 ft / 250 ft)

Netbell Tone Generator

If you have a PA system in place and are looking for a device to generate and schedule different tones to signal different events, our tone generator is your perfect solution. The Netbell-NTG is a network enabled, all-in-one system that can be used to produce timed or manually triggered different sounds for different events through an existing PA system.

Built-in Web-Based Bell Controller/Multi-Tone Message Generator,:
Self-contained, ease of scheduling, remote access.  No addtional software or designated computer required.

Applications:
Then Netbell-NTG Multi-Tones/Multi-Messages Generator is designed to send out scheduled audible alerts for an existing Public Address (PA) System for signaling start and stop work, lunch breaks, shift changes, general alarms, service notification in schools, factories, businesses, warehouses, industrial facilities, distribution centers, commercial buildings, and more.

Life-Time Free Support:
Linortek products are designed, engineered, manufactuered and supported by our team, located in Winston-Salem, North Carolina

Click here to download the Factory Brochure.  (But order from us!)

The Key Features

  • Network enabled program and schedule to play from a web browser or Bell Scheduler desk app over the network. No additional software or designated computer required
  • Two dry contact relay outputs built on the board that can be used to ring physical bells/buzzers or connect to ther electronic devices
  • 4 programmable digital inputs for triggering special events
  • Built-in one stereo audio line output (30ohm)
  • 40 standard tones/messages and the capacity of adding pre-recorded custom tones and/or voice messages up to 10 hours (voice messge file rate at 44.1K/16bit)
  • Plays audio from MicroSD card (1GB included)
  • Select/activate 16 tones/messages for different events
  • Up to 500 programmable weekday/calendar-based event schedules
  • Centralized programmable tone selection
  • Built-in phone jack for auto testing and setup
  • Master volume control
  • Built-in real time clock with user changeable NTP automtic internet time setting, automatic Daylight Savings Time and leap year correction
  • Flexible and accurate control of when the tones/messages are played: HH:MM:SS, MM/DD/YYYY, Sunday - Saturday
  • Built in rechargeable battery that can keep all settings for up to 7 days in the event of power outage
  • POE (Power over Etherenet) enabled
  • Designed, developed, and built in USA


 

  • Web Server: Built-In (All software located on built-in web server.)
  • Event Schedules: Up to 500 Event Schedules (Add schedules from webpage or desk app)
  • Tone/Message Play Duration: User Programmable for Each Event
     
  • Built-In Tones: 40 Standard Tones
  • Relay Outputs: 2 (Dry contact, 1 FORM C 48 Volt Max, 12VDC/5A, 24VAC/DC 3A)
  • Digital Inputs: 4 (Trigger special events)
  • Audio Output: 1 Stereo Line Output
  • Audio file format: Ogg Vorbis audio format
  • Audio file resolution: 16bit/8bit
     
  • Audio file rate: 44.1K/22K/11K/8K
  • File storage size: 1G
  • Enclosure: Polycarbonate, White Gray Body/Cover, 125X175X60MM
  • Accessories: 3M RJ45 Cable/3ft RCA Cable/3ft 3.5mm Audio Cable/3ft 4-Conductor Cable
  • Power Input: 12VDC(power supply included)
  • Voltage Sensor: On Board
  • Temperature Sensor: On Board
  • Rechargeable Battery: On Board (Built-in rechargeable battery for offline time & settings keeping backup)
  • Working Temperature: From 0 to +60 Celsius
  • Supported Protocols: HTTP/ SMTP/SNTP