Modbus Voice Alert (VAMTB)

Assertive Utterance


Voice Alert Module is a unique and innovative product that can generate pre-recorded voice alerts based on the commands on Modbus TCP/IP Network. In the industry generally, hooters/buzzers are used to alert the users in case of alarms. In such a scenario the users will understand that it is an emergency but then they will need to go through the SCADA or HMI to understand the alarms and this causes a time delay. With our voice, alert module users can instantly get to know the alarm information through the pre-recorded voice messages and save time and be well-equipped to handle the situation.


Industrial Automation

Building Automation

Fire safety panels

General Alarm Notification


Pre-recorded voice alerts for different alarms.

A clear voice for notification of alarms.

Enable the user for quick action

Industry-standard Modbus TCP/IP interface

Multi-lingual voice alarms for different users

Audio alarm can be extended to faraway places from the control room

Simple and easy to integrate

Less power consumption


Modbus TCP/IP trigger-based voice alert.

Up to 4 GB of voice data.

Repeat the play option.

Ethernet interface.

Web-based configuration with password protection.

Network recovery through the USB port.

Logs the alerts with RTC time stamping.

Supports .WAC format with different sampling frequencies.

Stereo voice output.

Firmware update feature for future up-gradation


Power Supply – 9-32 VDC or 230 VAC external power adapter

Interface – 10/100 MB base ethernet

Network Recovery – USB Port

Protocol Supported – Modbus TCP/IP Slave

Storage – Micro SD card 4GB

Configuration – Web-based

Supported file format – 8.WAV

Supported sampling frequency – 8 kHz, 32 kHz, 44.1 kHz, 16-bit stereo

Voice output – Stereo socket for further amplification

Operating temperature – -20 to +70 degrees celsius (subjected to Micro SD card temperature)

Storage Temperature – -45 to +85 degree celsius

Box Dimensions – 132mm x 93mm X 36 mm