The Babel Buster® BB4-8422 Modbus to SNMPv3 Gateway is a Multi-Protocol Gateway with support for SNMPv3 as well as SNMPv1 and SNMPv2. The content of the gateway’s MIB is fully customizable by the user. The BB4-8422 includes an SNMP Client to Get and Set MIB variables in other devices. The BB4-8422 SNMP Gateway can both send and receive SNMP Traps.

The Babel Buster BB4-8422 is a Modbus TCP Gateway with both client and server. The Babel Buster BB4-8422 is a Modbus RTU Gateway with two RTU channels each independently configurable as either master or slave. All Modbus register types are supported. Modbus support is included for 32-bit and 64-bit data, and character strings.

BB2-7010 Modbus to BACnet IP Gateway Functionality

Data is shared across all protocols with protocol agnostic data objects at the core of the system. Modbus devices can be accessed by SNMP. SNMP data can be accessed by Modbus. Data flow can go in both directions between any given protocols.

Feature Highlights
• Dual Ethernet Ports
• Dual, Isolated RS-485 Ports
• Faster, More Memory
• Secure, SSL Support
• SNMPv3 Support
• Modbus TCP and RTU Client and Server
• USB Flash Drive
• Slim DIN Rail Package
• Built-in Configuration Tools
• Drivers Included
• Free Software Upgrades for Life

Babel Buster BB2-7010 BACnet IP to Modbus or SNMP Gateway

Babel Buster BB4-8422 Multi-Protocol Gateway

Order code: BB4-8422-IND
Retail price: $1,790.00

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The new Babel Buster® 4 is a performance enhanced multi-protocol network gateway designed to serve many network gateway needs in a single package. The BB4-8422 includes dual Ethernet ports and dual isolated RS-485 ports. This new generation gateway features a faster processor, greatly increased memory capacity, and network security support. The user may assign any supported protocol to any port.

The Babel Buster 4 brings together all of the best features of our most popular Babel Buster 2 family gateways plus everything else you asked for along the way. By incorporating a full implementation of Linux, we leave the door wide open to adaptation to an endless array of protocols, applications, and features.

Protocol support in initial release includes Modbus and SNMPv3, with BACnet soon to follow. There is only one model - you just keep adding protocols as they become available. There is no added charge for adding an open protocol.

The web pages served by the internal web server have been overhauled to be mobile responsive and dynamically updated. That means you can easily view data and configuration from your smart phone if you have made the Babel Buster accessible via secure Internet connection.

Configuration of the various functions of the BB4-8422 is done via the web UI. You also have the option of creating your configuration using a spread sheet program, saving as a CSV file. The ability to import CSV files is built into the BB4-8422. You can also export configuration from one device and import into another.

The SNMP Agent included in the BB4-8422 provides MIB access to internal data objects with representation as 32-bit or 64-bit integer, four different options for floating point support, and character strings. The SNMP Agent can send Traps or Informs as SNMPv3, SNMPv2, or SNMPv1. Sending of traps is triggered by thresholds set by the user. Trap rules are created using a simple template in the Web UI.

The SNMP Trap Receiver can be configured to receive SNMP Traps as v1, v2, or v3. Trap rule templates tell the trap receiver what Trap OIDs to look for, what Var OIDs to pick out, and what local data object to place the results in.

The SNMP Client includes automatic reading and writing of MIB variables in other SNMP devices using rules created by the user and set up using templates in the Web UI. Writing can be periodic, or triggered by change in value in the local object.

The SNMP Client includes an automatic table walker with multiple algorithms making it suitable for walking the sparse alarm table found in UPS systems implementing RFC 1628. The table walker can easily translate the alarm table into a series of data objects.

The BB4-8422 can function as a Modbus TCP Server or Modbus RTU Slave. All of the data objects created within the BB4-8422 can be made available as Modbus registers to other Modbus masters. The user is free to select which local data objects are accessible as Modbus registers, and the remapping feature allows the user to assign any arbitrary Modbus register map they might like.

The BB4-8422 can function as a Modbus TCP Client or Modbus RTU Master. The BB4-8422 has two isolated RS-485 ports that operate independently, each configurable as Modbus RTU Master or Slave. Both Ethernet ports can be used by the Modbus TCP Client, allowing access to Modbus devices on two different subnets.

The Modbus Client or Master will periodically poll registers in other Modbus devices, saving a copy of the content in local objects. Registers in other Modbus devices can be written periodically, or triggered by change in value in the local object. All Modbus register types are supported (coil, discrete input, input register, holding register). Data can span multiple Modbus registers to provide 32-bit or 64-bit data, integer or floating point. Data can span multiple registers for character string representation as well.

Do you want to customize the web interface? We give you access to the PHP source code (utilizing Bootstrap CSS and JavaScript), and all internal capability is accessible via a Json API we give you access to. You probably won’t find a more customizable gateway than this!

Programming support built in for web applications includes Apache 2.4, PHP 7 and Sqlite 3. Additional support built in for server side applications includes Python 2.7, GCC 6.3, and Perl 5.


BB4-8422 Features

• One Gateway, Multiple Protocols
• IoT Ready
• Dual Ethernet Ports
• Dual, Isolated RS-485 Ports
• Secure, SSL Support
• SNMPv3 Support (and v1, v2)
• Built-in Configuration Tools
• Drivers Included
• Free Software Upgrades for Life

• Support for up to 10,000 data objects
• Modbus TCP and RTU client and server
• Modbus support for 32-bit and 64-bit data
• Modbus support for character string data
• SNMP client and server
• SNMP v1, v2c, v3 Get/Set access to all data points
• SNMP v1, v2c, v3 table walker
• SNMP v1, v2c , v3 trap send and receive
• Configure via secure web pages
• Field upgradeable software upload via USB drive
• RADIUS authentication support
• Customizable User Interface

• AM3359 Cortex-A8 Processor, 720MHz
• 512MB DDR3 RAM
• 512MB Nand-Flash, Boot/System
• 2GB Nand-Flash, Applications
• Embedded Linux OS
• Apache 2.4, PHP 7, Sqlite 3, Python 2.7, Perl 5, GCC 6.3 Included
• USB Host for software updates or user applications
• Dual 10/100 Ethernet Ports
• Dual Isolated RS-485 Ports, 1200 to 115200 baud
• Powered by 10-30VDC or 12-24VAC 50/60 Hz
• Power Consumption: 0.3A @ 24VDC
• DIN rail mounting, 115mm H x 32mm W x 100mm D
• Wall mount bracket included
• Pluggable screw terminal blocks for power, RS-485 ports
• Operating temperature -30°C to +70°C (with industrial SD card)
• Humidity 5% to 90% non-condensing
• FCC Class A, CE Mark

The user guide for the Babel Buster BB4 is in the form of an online Wiki accessible at When using the BB4-8422, click the Help link in the upper right corner of any page for a link directly to the Wiki page applicable to the page you are currently on in the Web UI in the Babel Buster BB4. If the BB4-8422 is not connected to the Internet, the help link also provides a QR Code you may scan with your smart phone, and the link will take you directly to the applicable Wiki page using your phone.

Babel Buster Configuration Builder

The Configuration Builder for the Babel Buster BB4 is built right into the gateway itself. You can import CSV files directly into the BB4-8422. You do not need any additional software for converting CSV files into a gateway configuration.

The only time you might use the original Babel Buster Configuration Builder is to import a configuration file for another model, e.g. BB2-6010, and convert that to a CSV file which you can import into the BB2-8422 after minor editing.

This tool is free and available for download now. Unzip and run the bb-builder-setup.exe file. Open the program, and click the help icon (blue question mark in upper left corner) to access the user guide. The very first section tells you how to get started.

Download the Babel Buster Configuration Builder here.

Our most extensive technical support is provided by the same engineering staff that developed the products. Your personal attention from this staff is available via the support ticket system.

No user/password is required to open a new ticket. Once you open a ticket, you will immediately receive an email with your ticket number. Your ticket number becomes your login to review your ticket(s) later. Click the Support Ticket icon anywhere you see it. (If you do not get an email with your ticket number, within minutes, check your junk folder, spam settings, etc, and try again if necessary.)

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