Technical Overview

The 9202-ETS-TR1 is a specialized industrial security appliance part of the Honeywell MTL Tofino™ lineup. It is engineered to provide a robust "Electronic Security Perimeter" for SCADA and DCS networks without requiring a complete network overhaul. The standout feature of this device is its transparent installation; it operates as a Layer 2 bridge, meaning it can be dropped into an existing network link to provide firewall protection without changing IP addresses or reconfiguring PLCs, HMIs, or RTUs.

By utilizing "Zones and Conduits" architecture, the 9202-ETS-TR1 isolates critical assets into secure zones and enforces deep packet inspection (DPI) on industrial protocols. This prevents the lateral movement of malware and unauthorized commands within a facility, providing a critical layer of defense for legacy systems that lack built-in security features.

Detailed Technical Data

• Product Type: Industrial Security Appliance / Firewall.

• Network Integration: Transparent Layer 2 Bridge (No IP change required).

• Industrial Protocol Support:

• Modbus TCP

• OPC Classic (DA, AE, HDA)

• EtherNet/IP

• DNP3

• IEC 60870-5-104

• Environmental Endurance:

• Operating Temperature: -40°C to +85°C (-40°F to +185°F).

• Protection: Designed for harsh EMI and high-vibration environments.

• Hazardous Location Certifications:

• ATEX: Zone 2.

• North America: ISA 12.12.01 Class I, Division 2.

• Management Interface: Centralized management via Tofino Configurator software.

• Hardware Mounting: Standard 35mm DIN rail mounting for control cabinets.

Application and Cyber Security Strategy

The 9202-ETS-TR1 is a primary tool for achieving ISA/IEC 62443 compliance. In a typical deployment—such as a power substation or a water treatment plant—the appliance is placed immediately in front of a critical controller. It is then configured to allow only specific "Read" commands while blocking "Write" or "Firmware Update" commands from unauthorized workstations, effectively shielding the controller from both external cyberattacks and internal human error.