Monitoring System 550T
€809.00
Rack Monitoring and Data Center Monitoring at the Highest Level
The Didactum Monitoring System 550T is the powerful 19" rackmount solution from the Didactum Monitoring family – designed for monitoring multiple racks in data centers, for building management systems (BMS), and for use in production environments. The device continuously records critical environmental parameters – from temperature and humidity to smoke, water intrusion, and airflow, through to voltage, vibration, and unauthorized access – and reports anomalies in real time, before they turn into costly downtime or data loss.
Compared to the more compact Didactum models, the 550T offers significantly more inputs/outputs, two CAN bus ports instead of one, and dual relay outputs – making it designed for demanding multi-rack and BMS scenarios. Configuration is done entirely through the built-in web browser interface, sensors are detected automatically, and the device integrates seamlessly into existing monitoring landscapes such as Zabbix, PRTG, Nagios, or Check_MK via SNMP, Modbus TCP/IP, Syslog, or a REST API.
As your environment grows, the 550T grows with it: additional sensors and third-party devices can be integrated via CAN expansion units, Modbus RTU/TCP connectivity, and daisy-chaining, turning the rack unit into a significantly larger monitoring network whenever needed – without having to replace the base unit.
Comprehensive Data Center and Environmental Monitoring
The 550T reliably captures all critical factors in server rooms, rack rows, and technical facilities in real time.
Temperature & Humidity
Protects against overheating and condensation across multiple racks simultaneously.
Power & UPS Systems
Monitors mains voltage, UPS, and power supply in real time.
Smoke & Leak Detection
Early warning of fire or water damage in the data center.
Airflow & Vibration
Early detection of disruptions in cooling and the surrounding environment.
Access Control
Secures server cabinets, doors, and technical rooms against unauthorized access.
Comprehensive Sensor Integration for Data Centers and BMS
The 550T supports up to 150 sensors, contacts, and relays simultaneously – risks are detected and reported automatically.
Temperature & Humidity Sensors
Precise measurement for server rooms, rack rows, and production facilities.
Vibration Sensors
Detect impacts or tampering on racks and doors.
Magnetic Contact & Motion Sensors
Reliably monitor doors, windows, and server cabinets.
Leak & Water Sensors
Early warning of flooding under raised floors.
Smoke Detectors
Real-time early detection of fire hazards.
Power & Voltage Sensors
Monitoring of UPS systems, mains voltage, and consumption.
Modbus Sensors
Connect up to 32 Modbus RTU devices via expansion.
Airflow Sensors
Capture airflow in raised floors and air conditioning systems.
With this sensor variety, risks such as overheating, humidity, leaks, and unauthorized access are automatically detected and reported – ideal for server rooms, rack rows, data centers, and production facilities.
Real-Time Monitoring and Automated Alerting
The 550T responds instantly to critical readings. When thresholds are exceeded, the system automatically sends email notifications, SNMP traps, or activates a siren. With an installed LTE modem, SMS and call notifications are also available. Integration with monitoring software such as Zabbix, PRTG, Nagios, or Check_MK is straightforward thanks to standard network protocols (HTTP, HTTPS, SMTP, FTP, SNMP, Syslog, Modbus TCP/IP, DHCP).
Practical example: A temperature sensor in the data center reports critical readings. The system automatically activates ventilation and alarm lights via the relay outputs, sends email and an SNMP trap to the IT staff responsible, and permanently logs the incident – preventing overheating damage before it happens.
Web-Based Control & Intelligent Automation
The multilingual web interface allows easy management of sensors, relays, alarms, and scenarios.
- Temperature > 30 °C → turn on cooling, trigger alarm
- Door opened → send email to administrator, turn on light
- Water intrusion → activate siren, close valves via relay
- Voltage failure on UPS system → activate redundant power source, send alarm
The 550T can be used as an I/O controller for doors, fans, generators, UPS, circuit breakers, air conditioning, or lighting – ideal for data center management, building automation, and preventive maintenance.
Full Control
Monitor devices, turn sensor data into actionable insights, and configure integrations – all through an intuitive, web-based interface.
- Monitor real-time data from all connected sensors and devices
- Create automated actions based on defined conditions
- Send email, Telegram, HTTP request, SNMP, or other notifications
- Visualize trends and logs for better decision-making
- Securely manage users, permissions, and access with three-tier role control
Individually Configurable: Expansion Module, Modem & Power Supply
The Monitoring System 550T can already be precisely tailored to your requirements during the ordering process.
Please note: The options listed below are not automatically included in the scope of delivery. They must be selected separately above the cart button ("Select expansion module," "Select modem," and "Select power supply") for the desired module, modem, or power supply variant to be included in the order and installed in the device.
Expansion Module
Expansion Module for OSDPv2 Reader
Enables connection of OSDPv2-capable card readers for access control directly on the device.
Expansion Module for Modbus/RTU
Integrates Modbus/RTU-capable devices and sensors into the Monitoring System 550T.
No Expansion Module
Default selection if no OSDPv2 or Modbus/RTU module is required. Note: only one of the two modules can be installed in the device at a time.
Modem
LTE Modem
Enables independent remote connectivity and alerting via mobile network (including SMS and web-to-SMS), even without a fixed IP network. Installed in the dedicated modem slot.
No Modem
Default selection if the device is to be operated exclusively via Ethernet.
Power Supply
The 550T is available in five power supply variants. In the redundant variants, the device automatically switches to the line with the highest applied voltage, so the failure of one line does not interrupt operation.
230V AC
A single mains input, simple power supply from the electrical grid.
230V AC (Redundant)
Two independent 230V AC mains inputs for redundant power supply.
24V – 48V DC
A single DC input for operation on DC power networks, e.g. in telecommunications facilities.
230V AC + 24V – 48V DC
Hybrid variant with one AC and one DC input for maximum redundancy across different power sources.
24V – 48V DC (Redundant)
Two independent DC inputs for redundant DC power supply.
Scalable, Reliable, and Future-Proof
The Monitoring System 550T is now available with 10/100/1000 Mbit/s Ethernet (Gigabit). The system supports up to 1000 elements (sensors, triggers, logic schemes, notifications) and can be easily expanded. Additional sensors and expansion units can be connected in a daisy chain via two CAN bus ports. Regular firmware updates ensure long-term usability. Made in the EU – German support included.
Connecting CAN Sensors
The 550T features two CAN bus ports. Through each port, multiple CAN devices can be linked together in a chain – up to 24 CAN devices per chain are recommended, with a maximum of 32 devices per port. Each 8-port sensor expansion adds 8 additional analog sensors to the system. Each dry-contact expansion unit adds 32 or 64 additional dry-contact inputs. An additional CAN power supply (12V/1A) is only required if the number of CAN devices in the chain exceeds the recommended limit.
Building Monitoring & Physical Security
The 550T also protects server rooms, rack rows, and technical rooms against unauthorized access and sabotage.
- Glass-break sensors detect broken windows
- Motion detectors secure technical rooms and rack rows
- Door contacts report unauthorized access to server cabinets
- Optional OSDPv2 expansion module for card reader integration
All sensor and alarm data are also logged with timestamps, helping companies with ISO 27001, GDPR, or industry-specific audits.
Up and Running in Minutes
Setup is quick and easy – no additional software required.
- Mount the device in a 19" rack and connect it to your network via Ethernet cable
- Connect the power supply according to the selected option (230V AC and/or 24–48V DC) – the system starts automatically
- Open the device's default IP address in your browser
- Complete the setup wizard for network settings, admin password, and time zone
- Connect sensors to the analog ports or the CAN bus – they are detected automatically
- Optional: configure alarm rules, Modbus devices, and advanced settings
What's Included
Please check the delivery for completeness upon receipt and report any missing or damaged parts to your supplier immediately.
- Didactum 550T Monitoring Unit1 piece
- 19" rack mounting brackets2 pieces
- Power cable Schuko/C13, 230V/10A1 piece
- RJ-45 Ethernet cable, 3 m1 piece
- OTG USB-C cable1 piece
- Phillips screws M3 x 8 mm6 pieces
- Terminal block, 6-pin, 5.08 mm1 piece
- Terminal block, 6-pin, 3.5 mm8 pieces
- Terminal block, 8-pin, 3.5 mm2 pieces
- Terminal block, 3-pin, 3.81 mm1 piece
- Terminal block, 2-pin, 3.81 mm1 piece
- Self-adhesive rubber feet4 pieces
- Configuration guide1 piece
- Warranty card1 piece
If you select the "230V AC (Redundant)" or "230V AC + 24V–48V DC" option, a second power cable is included. Depending on the selected power supply option, the included terminal blocks may vary.
Why the 550T Is the Right Choice
Data Center Monitoring
19" rackmount format for monitoring multiple racks.
Up to 150 Sensors
Temperature, humidity, smoke, leaks, vibration, power, access.
Gigabit Ethernet
10/100/1000 Mbit/s for high-performance network connectivity.
2x CAN Bus Ports
Up to 32 devices per port for extensive sensor networks.
Modbus TCP/IP & RTU
Integration of Modbus sensors and BMS devices.
Redundant Power Supply
Configurable as AC, DC, or mixed redundant.
Web-Based
Compatible with Zabbix, PRTG, Nagios, and Check_MK.
I/O Control
Automated control of UPS, air conditioning, access, and lighting.
Made in EU
German support included, regular firmware updates.
Practical Applications
- Temperature and humidity monitoring in rack rows and data centers
- Leak detection under raised floors or in air conditioning systems
- Monitoring of UPS systems, generators, and power supply
- Security monitoring of doors, windows, and server cabinets
- Connecting building management systems via Modbus RTU/TCP
- Vibration monitoring to protect against sabotage or unauthorized access
- Remote monitoring of multiple sites via LTE modem
- Event logging and predictive maintenance
The Didactum Monitoring System 550T combines data center monitoring, BMS integration, and building security in a single platform – for early hazard detection, fewer outages, and maximum system availability.
More on the Didactum 550T
Device Detail Page & Tutorial
Overview of the device, detailed dimensions, and a full explanation of all connections.
Go to detail page →Firmware & Updates
Current firmware versions along with instructions for updating and recovery.
Go to firmware page →Live Demo
Try out the web interface of the Didactum Monitoring System online, no obligation.
Go to demo →Frequently Asked Questions
What is the Didactum Monitoring System 550T and what is it used for?
The Didactum Monitoring System 550T is a 19" rackmount monitoring solution for data centers, server room rows, and building management systems. It continuously monitors temperature, humidity, smoke, water, airflow, voltage, vibration, and access. The system is particularly well suited for monitoring multiple racks as well as for connecting Modbus devices from building management systems or production environments.
What options are available and do I need to select them separately?
Three option groups are available for the 550T: an expansion module (OSDPv2 reader or Modbus/RTU), an optional LTE modem, and the power supply (230V AC, 24–48V DC, each also available as redundant or mixed variants). These options are not automatically included in the base price and must be selected directly on the product page above the "Add to cart" button. Without an active selection, we ship the device in its respective default configuration (no expansion module, no modem, single 230V AC supply).
Which sensors can be connected to the system?
The Monitoring System 550T features 8 built-in analog sensor ports as well as two CAN bus ports for expansion. Supported sensors include temperature sensors, humidity sensors, smoke detectors, motion detectors, door contacts, vibration detectors, water sensors, and voltage sensors. Up to 150 sensors, contacts, and relays can be monitored simultaneously.
How are alarms and notifications sent?
The system offers various alerting methods: email notifications, SNMP traps for network management systems, and syslog messages. With an installed LTE modem, SMS and voice calls are also available. External sirens or beacons can also be connected via the relay outputs. Alarm rules are individually configurable with various thresholds and escalation levels.
Does the 550T use Gigabit Ethernet?
Yes. The Monitoring System 550T is equipped with 10/100/1000 Mbit/s Ethernet (Gigabit), allowing it to be integrated into modern network infrastructures with high performance.
Can the system be integrated into existing IT and BMS infrastructures?
Yes, the Didactum Monitoring System 550T is specifically designed for integration into professional IT and BMS environments. It supports SNMP v1/v2c/v3, Modbus TCP/IP natively, as well as Modbus RTU via an optional expansion module, integrates with common monitoring platforms such as Nagios, PRTG, Zabbix, or Check_MK, and has a web API for custom integrations.
What power supply does the system require and how fail-safe is it?
The 550T can be operated with 230V AC, with 24–48V DC, or redundantly from both sources – the appropriate option must be selected during the ordering process. In a redundant configuration, the second source automatically takes over if one source fails. All events are permanently logged, and a built-in watchdog ensures automatic restarts in the event of system errors.
Can the system be expanded if I need more sensors?
Yes. Up to 32 CAN devices can be connected per port via the two CAN bus ports (24 recommended). The 8-port sensor expansion adds 8 analog sensors each, while the dry-contact expansion unit adds 32 or 64 additional dry contacts. Additionally, connection of up to 32 Modbus devices can be achieved via the optional Modbus/RTU expansion module.
Questions about the 550T?
Our support team in Germany is happy to advise you free of charge on selection, options, setup, and sensors.
Device Management:
- Device Management: Web, SNMP
- Sensor Access: Three-level via login
Interface:
- LAN: Ethernet 100 Mbit
- Operating System: Linux v.6.2
- Interface: Any browser
- Memory (RAM): 128 MB
- CPU Speed: 1 GHz
- Total CPU Cores: 2
- Clock: Built-in clock
- Timer: Built-in watchdog
Sensor Technology and Logic:
- Max. Number of Sensors: 150 (physical sensors, dry contacts, relays)
- Max. Number of Elements: 1000 (notifications, triggers, timers, logic, sensors, etc.)
Network / Protocol Support:
- LTE Gateway Mode: Yes
- LTE Access Mode: Yes
- Network Protocols: DHCP, HTTP, HTTPS, SNMP, SMTP, FTP, Syslog, TLS
- Modbus RTU: With VT485m expansion
- Modbus TCP/IP: Yes
- VPN: Secure data transmission: Yes
Power Supply:
- Energy Efficiency (EU Energy Level): Grade A
- Power Input (230V AC): Two inputs
- Power Input (24–48V DC): Two inputs
- Power Input (12V DC): Input
- Min. Power Consumption: 1 W
- Max. Power Consumption: 10 W
Inputs/Outputs:
- Analog Port: 8 built-in ports (6P6C for connecting analog sensors)
- CAN Port: 2 ports, max. 32 devices per port
- Dry Contact Inputs: 32
- Relay Outputs (240V / 10A): 2
- Relay Outputs (12V / 0.25A): 2
Video Support:
- USB Cameras: 1
- IP Cameras: up to 4
Environmental Conditions:
- Operating Temperature: -10 to +70 °C
- Storage Temperature: -25 to +85 °C
- Operating Humidity: 0 to 90% (non-condensing)
Mechanics and Enclosure:
- Installation: 19″ 1U
- Enclosure Material: Sheet steel
- Dimensions (L x W x H): 440 x 44 x 90 mm
- Weight: 1.6 kg
CAN sensors
Matching sensors
Extension units
Video surveillance
Software
Warranty extension
Manufacturer information:
Didactum® Security GmbH
Im Mühlenfeld 4
48163 Münster
Deutschland
Fon:
(+49) 250 19 71 63 54 / (+49) 171 33 11 577
Email: info@didactum-security.de
