How it works

ArrowLinx physically allows traffic in one direction only. Operational data reaches the business network in real time, while the protected network stays unreachable from the outside. No software setting can open a path back in.

Data moves from the protected network through ArrowLinx to the external network. There is no return path. PROTECTED NETWORKOT · isolated · classified SCADA / HMI Historian PLCs & sensors Sender Receiver One-way optical link No physical return path EXTERNAL NETWORKIT · enterprise · cloud SIEM & SOC MES / ERP Cloud analytics Data moves from the protected network through ArrowLinx to the external network. There is no return path. PROTECTED NETWORKOT · isolated · classified SCADA / HMI · Historian PLCs & sensors Sender Receiver EXTERNAL NETWORKIT · enterprise · cloud SIEM · MES / ERP · Cloud ✕ No physical return path

01

Unidirectional communication

Secure, hardware-enforced one-way data transfer. No software setting can open a path back into the protected network.

02

Built-in operational monitoring

Real-time health monitoring with alerts via SYSLOG, email and SNMP traps, plus NTP synchronisation through ArrowLinx.

03

Self-service & stackable

An integrated management portal, plus a stackable design for third-party integration.

Supported network & data replication protocols

All models

  • TCP
  • UDP
  • SYSLOG
  • SNMP traps
  • Probe mode
  • Folder mirroring (SMB, Samba)
  • SFTP
  • FTP

5000 Series, in addition

  • HTTP / HTTPS
  • SMTP
  • OPC UA / DA
  • Kafka
  • Modbus (RS232/TCP)
  • IEC 104
  • MQTT
  • RTSP

Certified for high assurance

ArrowLinx models 5282, 5283, 5284 and 5285 are Common Criteria EAL 4+ certified by the Cyber Security Agency of Singapore (CSA), an independent validation of the one-way design for government, critical infrastructure and enterprise use. The 1280 and 5280 share the platform but are not CC certified. Safety certifications on every model: FCC, CE, UL+CB, BSMI, VCCI.

Keep your air gap. Share your data.

Talk to an ArrowLinx specialist about the right model for your network, or join the partner programme to resell the range.