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DD-1000 / DD-10G

ARKA™ DD-1000 Protocol-Aware Data Diode

High-throughput data diode with built-in proxies for TCP, files, OPC UA, Modbus, historians and video.

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ARKADD-1000
Overview

Most real-world feeds are not plain UDP. Historians, OPC servers, file shares and CCTV all expect a two-way TCP conversation. The DD-1000 pairs a hardware one-way optical link with send-side and receive-side proxy servers that terminate those protocols locally and replicate the data across the diode, so applications keep working while the network stays physically one-way.

Built for power utilities, refineries and defence networks that need to replicate historians, transfer files and stream video out of a secure zone at line rate, with forward error correction and integrity checks because no acknowledgement can ever travel back.

Key features

Protocol replicationTCP, UDP, SMB/CIFS, FTP/SFTP, syslog, SNMP, OPC UA / OPC DA, Modbus TCP, IEC 60870-5-104, MQTT, RTSP video.
Historian replicationMirror plant historians (e.g. OSIsoft PI-class, Wonderware-class) to the corporate network in near real time.
Optical one-way linkPhysical fibre transmitter-only / receiver-only path. The isolation is optical, not a software policy.
Forward error correctionRedundant encoding and per-file hash verification in place of acknowledgements.
High availabilityDual-PSU option and active/standby pairs for 24x7 control-centre operation.
Audit trailTamper-evident transfer logs on both sides for compliance audits.

Technical specifications

ModelDD-1000 (1 Gbps) / DD-10G (10 Gbps)
ArchitectureSend proxy + optical one-way link + receive proxy
ThroughputUp to 1 Gbps (DD-1000); up to 10 Gbps (DD-10G)
ProtocolsTCP, UDP, file (SMB, FTP/SFTP), syslog, SNMP, OPC UA/DA, Modbus TCP, IEC 104, MQTT, RTSP
Interfaces2 x 1 GbE RJ-45 + 2 x SFP/SFP+ per side; dedicated management port
IntegrityFEC, SHA-256 per-file verification, sequence tracking
Form factor1U 19" rack-mount
Power230 VAC, 50 Hz; optional redundant PSU
Operating temperature0 to +50 °C
Warranty & support5 years OEM warranty, updates and security patches
Specifications shown are indicative. Final configuration, certifications and performance figures are confirmed in the technical proposal for each project.

Typical applications

Power generation & transmission

Replicate DCS/SCADA historians to MIS and ERP without exposing the control network.

Refineries & pipelines

Stream process data to corporate analytics and predictive-maintenance platforms.

Defence & strategic

Bulk file and log export from high-security enclaves.

Smart cities & CCTV

One-way export of video from camera networks to command centres.

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