link70/io bridge/core

link/io bridge/core

Built for your world.

Bridge/core is an expandable, general-purpose I/O solution that bridges AES70 network monitoring and control with relays and digital/analog inputs.

Developed by Welliver Technologies and DeusO, the firmware runs on industrial DIN-rail hardware (Finder Opta).

It delivers native AES70 / OCA control and web configuration functions, a drag-and-drop logic builder, and integrates with traditional industrial control systems bridging to AUX Panel, Python (AES70py) network services (or scripts), or Node-RED workflows.

Key capabilities

Designed for real-world installations, bridge/core brings network control, configurable I/O, and automation together in one device.

AES70 / OCA control: Works as a native AES70/OCA GPIO bridge device on your network
mDNS discovery: Devices are discoverable on the network, but also manually configurable
Digital and Analog (0-10V) inputs: Eight configurable inputs for 12V-24V systems
Relay outputs: Four 10A (240V rated) normally open (N/O) relays for switching and contact-closure control
Onboard logic engine: Runs event-based logic directly on the device
Link70 Manager logic builder: Create and manage logic in a drag-and-drop interface
Link70 Manager: macOS and Windows apps for setup, live control, and firmware updates
Security and OTA updates: Includes built-in security and over-the-air firmware updates
Network monitoring: Helps track status and health in larger control systems
Scripting support: Integrates with Python (AES70py) and Node-RED for custom workflows
Touch Screen Option: Using AUX Panel, custom control and monitoring UIs provide system overview and control
Technical Fun Fact: the bridge/core firmware is less than 800KB, and is compatible with the Finder Opta Lite, RS-485 version and additional I/O modules (platform family).

Use cases

Bridge/core supports a broad set of control scenarios where network systems must interact cleanly with physical infrastructure.

Extend a mixing console's logic engine with AES70-triggered events beyond the console environment
Bridge a touch panel to GPIO, LEDs, relays, and non-networked mechanical control interfaces
Support custom wiring schemes in spaces requiring both network-based and hard-wired control integration
Drive general-purpose indicators, status lamps, and external logic workflows
Integrate with IT network infrastructure, automation platforms, and open third-party control ecosystems. Using AES70, Python (AES70py), Node-RED, and AUX Panel, Link70 Manager, and onboard logic
Support event-driven automation between networked software platforms and physical devices
Enable scheduled or API-driven control events from centralized management systems
Trigger environmental controls such as lighting presets, blinds, or HVAC integration through external automation systems
Provide network-to-relay interfacing for legacy AV and industrial control equipment
Extend DSP, audio matrix, and broadcast control systems with additional programmable I/O capacity
Trigger recording, streaming, or media-playback workflows from physical or network events
Provide contact-closure interfacing for non-safety-related operational equipment
Support equipment state monitoring such as power, fan, door, or rack-condition indication

Built for theatre technicians, systems integrators, and venue operators who need GPIO control off the shelf, not from the workbench.

Link70 Manager

Link70 Manager is desktop software for macOS and Windows. It connects to bridge/core hardware on your network so you configure settings, run day-to-day control, and roll out firmware updates from a familiar application.

Onboard logic

Input and network events trigger configurable sequences, from status indicators to multi-step workflows. Integrators build and manage simple logic via Link70 Manager without custom scripting, while Python and Node-RED extend those workflows into larger automation systems through programmatic integrations or using existing visual tools.

Integration

AUX Panel

AUX Panel buttons trigger physical events, and panel indicators reflect input + output states in realtime. This provides a direct path from a touch panel to non-networked hardware events and status updates.

AES70py (Python)

Python applications subscribe to AES70 objects, interact with OCA device object trees, proxy non-OCA systems and external services such as databases and dashboards.

Node-RED

Node-RED workflows connect OCA devices, non-networked equipment, and third-party services into a unified automation chain.

Platform and certifications

Built on the Finder Opta industrial platform, bridge/core delivers professional deployment across a wide range of installations. It is made in Italy by Finder, is UL approved, CE and UKCA certified, and designed for industrial grade applications. Opta with bridge/core firmware ships through approved distributors.

Why we like the Finder Opta platform

Modern hardware platform open to innovation
High-performance M7 core
Reasonable price
Backed by long-standing experts in industrial controls
Global availability, certifications, and hardware warranties
Reliable supply
Made in the EU
12-24V standard power
Industrial-standard I/O modes: 0-10V analog inputs and 240V-rated relays (10A)
Expansion options (RS-485 and additional I/O)

Firmware by Welliver Technologies LLC, includes technologies by DeusO GmbH.

Specifications
Hardware platform	Finder Opta industrial PLC (DIN-rail)
Power supply	12-24V DC
Inputs	8 configurable (digital / 0-10V analog)
Relay outputs	4 x 10A, 240V rated, normally open (N/O)
Expansion	RS-485; additional I/O modules (platform family)
Control protocol	AES70 / OCA
Discovery	mDNS; manual network configuration supported
Network monitoring	AES70 / OCA object monitoring and status
Onboard logic	Event-based logic engine on device
Web configuration	Built-in browser interface for setup and management
Desktop software	Link70 Manager (macOS, Windows): configuration, control, firmware updates
Logic builder	Drag-and-drop editor via Link70 Manager
Scripting	Python (AES70py), Node-RED
Compatibility	AUX Panel
Certifications	UL, CE, UKCA (Finder Opta hardware)
Firmware updates	OTA supported

Availability

Bridge/core ships through approved distributors.

For availability and integration enquiries, contact info@link70.io.