Sitasys AG
evalink TNA Connect V2
evalink TNA Connect V2
In stock – delivered in 1-3 business days
- 100+ supported protocols
- Drag‑and‑drop user interface
- Doker, Node-Red, LibreMNS & more
The universal connector for your security, building, and industrial automation systems – all in one place for alarming (eg. Push, SMS, Email) or analytics.
In combination with the evalink alarm platform, it forms a powerful ecosystem:
from PLC-based systems like Siemens or Beckhoff, to BACnet, MQTT, or legacy alarm protocols – all data is processed centrally, securely, and in real time.
This enables smart alarm handling, automated escalation workflows, and seamless integration into your existing infrastructure – whether in critical buildings or industrial environments.
🔥 This product fuels growth
Did you know this device is frequently re-ordered? No surprise, it unlocks new business opportunities with seamless integration to control centers, industrial and building automation.

Details
Technical specification
System
Embedded Linux
64-bit ARM
4x 1.5GHz
2GB RAM
32G eMMC
Connectivity
3 x USB 2.0
1 x Ethernet (Gigabit/1000BASE-T)
1 x 4G Modem (optional) - SMA
Inputs
10 x via screw terminals
Open/Close
Outputs
4 x via screw terminals
30VDC / 2A (to GND)
Based on MOSFETs
Power supply
7-36VDC - Wide input range power supply
300mA @ 12VDC
Screw Terminals
Dimensions
Built-in: 180 x 100 x 45 mm
Standalone: 162 x 95 x 34 mm
Temperature range
-20 to +80°C
24 months warranty
Scope of delivery
1x TNA Connect V2
+ For "stand-alone" -> 1x housing
1x Antenna small
Monthly subscription costs
A monthly subscription is required to use this product.
If this is not already known, please speak to Sales first before ordering.
The prices will also be announced here soon.
Connectivity
The TNA Connect V2 offers over 100 integrations and protocols, including Modbus TCP/RTU, OPC UA, BACnet, SNMP, MQTT, REST, and more, seamlessly connecting all your devices and services. Built with an intuitive drag-and-drop interface, you can easily process and convert your data or send it directly to evalink for further action.
Monitoring
Keep an eye on everything, be it your network, devices, or IoT network. Record metrics and define thresholds so you’ll get notified if something happens that shouldn’t. Thanks to the 4G backup, even when the local IT is down.
HTTP forwarting & VPN tunneling
Automation
Process data locally, convert protocols, and automatically escalate critical information to the evalink cloud platform, where you can alert contacts via APP, SMS, email, text-to-speech, etc., or send it to a monitoring station.
Features
FAQ
How can I monitor building systems (heating, HVAC, elevators, lighting)?
In the Building Automation area, these protocols can be connected through Node-RED running on TNA Connect V2.
Alarms and events are forwarded directly to evalink alarm management, while other data streams can be sent straight into Analytics.
Examples: HVAC controllers via BACnet/IP, lighting control via KNX, elevator status via Modbus.
- Modbus TCP/RTU
- KNX (via gateway)
- OPC UA / DA
- MQTT
- HTTP/REST (webhooks)
- ONVIF events (cameras)
- RS-232 / RS-422 / RS-485
- ZigBee
- Z-Wave
Remote access (VPN / HTTP-Forwarding)
How can I send alarms and events from machines directly to my technicians?
In the Industry / OT area, machine protocols can be connected via Node-RED on TNA Connect V2.
Machine alarms and events are forwarded to evalink alarm management, which then routes them to on-call technicians (via push notification, SMS, or app).
Operational and performance data can be streamed into Analytics for dashboards and KPIs.
Examples: PLC alarms via OPC UA, conveyor faults via Modbus TCP, production KPIs via MQTT, IT network alerts via LibreNMS.
- OPC UA
- Modbus TCP/RTU
- PROFINET (via gateway)
- MQTT / Sparkplug B
- REST / API hooks
- SNMP via LibreNMS (IT network monitoring)
Remote access (VPN / HTTP-Forwarding)
How can I use data from meters, solar plants, or battery systems?
In the Energy & Smart Grid area, protocols are connected via Node-RED on TNA Connect V2.
Events go into evalink alarm management, while performance and consumption data feed directly into Analytics.
Examples: smart meters via Modbus TCP, solar inverter data via MQTT, battery management via OPC UA, IT network monitoring via LibreNMS.
- Modbus TCP (meters/inverters)
- MQTT (PV/EMS)
- OPC UA (battery/PCS)
- SNMP via LibreNMS (IT network monitoring)
Remote access (VPN / HTTP-Forwarding)
How can I safely forward alarms from medical or building technology?
In the Healthcare area, protocols are bridged through Node-RED on TNA Connect V2.
Critical alarms go to evalink alarm management, while monitoring data can be routed into Analytics.
Examples: medical devices via HL7/FHIR, building HVAC via OPC UA, nurse call systems via webhooks.
- HL7/FHIR (via bridge)
- OPC UA
- Modbus
- HTTP/Webhooks
Team
Our Customer Success team and partners are right here for you, exactly when you need us.