Outbound-only architecture
Communication is initiated by the device toward predefined authorized servers. No inbound ports or inbound VPN are required.
Secure OT to cloud connectivity
CyLink
Connect critical infrastructure to cloud monitoring, control rooms and operational platforms without exposing the OT network.
The OT cloud paradox
More visibility without opening a path back into the field.
Operations teams need real-time data, predictive maintenance and remote awareness. Traditional routers, inbound VPNs and exposed ports increase cyber risk. CyLink is designed around outbound-only communication, cryptographic identity and hardened edge operation.
Mutual authentication
mTLS, device identity, allow-listed servers and encrypted transport verify every communicating party.
Data-agnostic transport
CyLink can pass industrial data as-is without interpreting payloads, converting protocols or changing PLC logic.
Product family
Three products for secure OT visibility and control.
Product 01
CyLink HMI
A remote monitoring and control platform for live Modbus data, alarms, dashboards and safe control actions from a web app.
Live dashboards
Alarm notifications
Role-based access
Safe writable elements
Alarm notifications
Role-based access
Safe writable elements
Product 02
CyLink Forensics
An Industrial Communication Recorder for continuous recording, long-term evidence preservation, replay and investigation of OT communications.
Serial and IP capture
Modbus RTU reconstruction
Evidence integrity
Incident replay
Modbus RTU reconstruction
Evidence integrity
Incident replay
Industrial digital flight recorder
Designed to capture every industrial communication, preserve it as tamper-evident evidence and help teams reconstruct operational events after an incident.
Product 03
CyLink Modbus RTU Data Diode
Secure one-way telemetry extraction from protected OT networks with no inbound communication path from cloud or modem.
One-way telemetry
No physical return path
RS-485 / Modbus RTU
Critical infrastructure
No physical return path
RS-485 / Modbus RTU
Critical infrastructure
Where CyLink fits
Built for infrastructure that cannot afford downtime.
CyLink supports industrial teams moving from reactive maintenance to continuous visibility, predictive maintenance and data-driven operations.
Water and wastewater
Pumping stations, remote assets, tanks and field controllers.
Pumping stations, remote assets, tanks and field controllers.
Energy and BESS
Distributed energy systems, storage sites and critical remote equipment.
Distributed energy systems, storage sites and critical remote equipment.
Industrial facilities
Factories, production lines, Modbus devices and maintenance workflows.
Factories, production lines, Modbus devices and maintenance workflows.
Defense-oriented deployments
Mobile systems, perimeter assets and operational equipment requiring high assurance connectivity.
Mobile systems, perimeter assets and operational equipment requiring high assurance connectivity.
Industrial design
- 9-24 VDC input
- Surge, transient, reverse polarity and brownout protection
- Continuous 24/7 operation
- Extended industrial temperature range
Secure supply chain
- Developed in Israel
- Western supply chain focus
- No Chinese-source communication modules
- Traceability for critical components
Field interfaces
- RS-485
- Modbus RTU, ASCII, TCP and RTU over TCP
- CAN 2.0A / 2.0B, J1939 and CANopen
- Digital, analog and custom expansion modules
Rotal Innovative Technologies
Turn field equipment into connected, intelligent and managed infrastructure.
Use CyLink when the business needs cloud visibility and operational continuity, but the OT network must remain protected from inbound exposure.