Monitoring System 500T
€679.00
The 19" Control Center for Data Centers and Critical Infrastructure
The Didactum Monitoring System 500T is a sophisticated, field-proven 19" 1U monitoring solution for data centers, server rooms, and other business-critical environments. As a self-contained device with no moving parts such as fans or hard drives, it continuously captures critical environmental parameters – from temperature, humidity, and voltage to smoke, dust, and vibration, as well as water ingress and unauthorized access – and issues real-time alerts long before they turn into a costly outage.
New: The Monitoring System 500T now uses Gigabit Ethernet (10/100/1000 Mbit/s), making it perfectly suited for deployment in modern, high-performance data center networks. As an I/O controller, its 16 potential-free inputs and 4 relay outputs also allow you to centrally control doors, fans, generators, UPS systems, and circuit breakers.
With support for up to 130 sensors, 1,000 freely configurable system elements, factory-selectable redundant power supply, and a CAN bus for expansion units, the 500T grows alongside your requirements. Optionally, it can be retrofitted with an expansion module (OSDPv2 reader or Modbus/RTU), an LTE modem for independent remote monitoring, and a battery backup reservation.
Comprehensive Data Center and Environmental Monitoring
The 500T reliably captures all critical factors in server rooms, data centers, and technical facilities in real time.
Temperature & Humidity
Protects against overheating and condensation in racks and server rooms.
Power & UPS Systems
Ensures continuous availability of the power supply.
Smoke, Dust & Leakage
Early warning for fire, fine particulates, or water damage.
Airflow & Vibration
Early detection of disturbances in cooling and the surrounding environment.
Access Control
Secures server cabinets and technical rooms against unauthorized access.
Comprehensive Sensor Integration for IT Security
The 500T supports up to 130 sensors, contacts, and relays simultaneously – risks are detected and reported automatically.
Temperature & Humidity Sensors
Precise measurement for server rooms and IT racks.
Vibration Sensors
Detect impacts or tampering on racks and doors.
Magnetic Contact & Motion Sensors
Reliably monitor doors and windows.
Leak & Water Sensors
Early warning for flooding and condensation.
Smoke & Dust Particle Sensors
Early detection of fire risks and particulate contamination.
Power & Voltage Sensors
Monitoring of UPS systems, mains voltage, and consumption.
Eight analog RJ12 sensor ports are available directly on the device, automatically detected via AutoSense. Via the CAN bus, this number can be expanded to up to 64 sensors – ideal for data centers, large server rooms, and network distribution rooms with growing sensor requirements.
Real-Time Monitoring and Automated Alerting
The 500T responds immediately to critical values. When threshold values are exceeded, the system automatically sends email notifications, SMS, Web-to-SMS, PUSH messages, or SNMP traps, or triggers a siren. In the event of a network outage, the device can even communicate via the mobile network and receive commands by SMS. Integration into monitoring software such as Zabbix, PRTG, or Nagios is straightforward thanks to standard network protocols (HTTP, HTTPS, SMTP, FTP, SNMP, Syslog, DHCP, Modbus TCP/IP).
Example in practice: A temperature sensor in the server cabinet reports a rise because a fan has failed. The 500T automatically activates the backup fan via a relay, sends an email and SMS to the IT staff responsible, and informs the central monitoring system via an SNMP trap – preventing overheating damage at an early stage.
Web-Based Control & Intelligent Automation
The intuitive web interface allows simple management of sensors, alarms, and scenarios.
- Temperature > 28 °C AND humidity < 30% → activate fan, start air conditioning, send email
- Door opened → send SMS to administrator
- Water ingress → activate pump, trigger siren, send email notification
- Power outage → start backup generator, notify the control center
The 500T can be used as an I/O controller for air conditioning units, UPS systems, generators, lighting, doors, or fans – 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
Scalable, Reliable, and Future-Proof
The system supports up to 1,000 elements (notifications, triggers, timers, logic schemes) and can be easily expanded. Via the CAN bus, multiple expansion units can be operated in a chain, with a maximum distance of up to 225 m from the device. Regular firmware updates ensure long-term usability. Made in the EU – with German support included.
Connecting CAN Sensors
Via the CAN bus, multiple CAN devices can be linked together in a chain. Each 8-port sensor expansion unit 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 12.
Individually Configurable: Expansion Module, Modem & Power Supply
The Monitoring System 500T 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 additionally and separately selected above the cart button ("Select expansion module", "Select modem", and "Select power supply") in order for the desired module, modem, or power supply variant to be included and installed in the device.
Expansion Module
Expansion Module for OSDPv2 Reader
Enables connection of OSDPv2-capable card readers for access control directly to the device.
Expansion Module for Modbus/RTU
Integrates Modbus/RTU-capable devices and sensors into the Monitoring System 500T.
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. Fits into the dedicated modem slot.
No Modem
Default selection if the device is to be operated exclusively via Ethernet.
Power Supply
The 500T is available in five power supply variants. For the redundant variants, the device automatically switches to the line with the highest applied voltage, so that the failure of one line does not interrupt operation.
230V AC
A single power input for simple operation from the mains supply.
230V AC (Redundant)
Two independent 230V AC power inputs for redundant power supply.
24V – 48V DC
A single DC input for operation on DC voltage 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.
In addition, all variants can optionally be retrofitted with a battery backup reservation, which temporarily keeps the device powered in the event of a complete failure of all power inputs.
Building Monitoring, Video & Physical Security
In addition, the 500T protects buildings and technical rooms from unauthorized access and sabotage.
- Glass break sensors detect broken windows
- Motion detectors secure technical rooms
- Door contacts report unauthorized access
- Up to 4 IP cameras or one USB camera for visual monitoring
- OSDPv2 card reader for access control (optional expansion module)
All sensor and alarm data is also logged with timestamps, supporting companies with ISO 27001, GDPR, or industry-specific audits.
Commissioning in Just a Few Minutes
Setup is quick and easy – no additional software required.
- Mount the device in the 19" rack and connect it via Ethernet cable to your Gigabit-capable network (10/100/1000 Mbit/s)
- Connect the appropriate power supply according to the ordered variant – the system starts automatically
- Open the device's default IP address, as stated in the quick start guide, in your browser
- Complete the setup wizard for network settings, admin password, and time zone
- Connect sensors to the analog ports – they are detected automatically (AutoSense)
- Optional: install the expansion module (OSDPv2/Modbus RTU), LTE modem, or battery backup reservation and configure it in the web interface
- Optional: configure alarm rules and advanced settings
What's Included in the Scope of Delivery
Please check the scope of delivery for completeness upon receipt and report any missing or damaged parts to your supplier immediately. Additionally ordered options (expansion module, modem, battery backup reservation) are not included here and are supplied separately.
- Didactum 500T monitoring unit1 piece
- OTG USB-C cable1 piece
- UTP Ethernet cable, 3 m1 piece
- Micro-USB-C OTG adapter cable1 piece
- 19" rack mounting brackets2 pieces
- M3 × 8 mm Phillips flat-head screws6 pieces
- Terminal block, 6-pin, 5.08 mm1 piece
- Terminal block, 3-pin, 3.81 mm1 piece
- Terminal block, 6-pin, 3.5 mm4 pieces
- Connector plug, 2-pin, 3.81 mm15 pieces
- Self-adhesive rubber feet4 pieces
- Quick start guide1 piece
Why the 500T Is the Right Choice
Gigabit Ethernet
10/100/1000 Mbit/s for high-performance data center networks.
Built for the 19" Rack
Solid 1U metal housing with no fans or moving parts.
Up to 130 Sensors
Temperature, humidity, smoke, dust, leakage, vibration, power, access.
Real-Time Alerting
Via email, SMS, SNMP trap, syslog, Web-to-SMS, or PUSH.
I/O Controller
16 potential-free inputs, 4 relays for UPS, HVAC, access, and lighting.
Scalable
Up to 1,000 elements – notifications, triggers, logic schemes.
5 Power Supply Variants
230V AC, 24–48V DC, or hybrid, each also available redundant.
Expansion Modules & LTE
Optional integration of OSDPv2 reader, Modbus/RTU, and LTE modem.
Made in the EU
German support included, regular firmware updates.
Practical Application Examples
- Temperature, humidity, and leak monitoring under raised floors in data centers
- UPS and power monitoring with automatic switchover to redundant power supply
- I/O control of air conditioning units, fans, backup generators, and circuit breakers
- Access and security monitoring of server cabinets and technical rooms
- Early smoke and gas detection in data centers and laboratories
- Integration of Modbus/RTU devices into existing automation environments
- Telecommunications sites and unmanned remote stations with LTE remote access
- Video surveillance via USB or IP camera in combination with sensor alarms
The Didactum Monitoring System 500T combines IP-based monitoring, environmental monitoring, and building security in a scalable 19" platform – for early hazard detection, fewer outages, and maximum system availability.
More About the Didactum 500T
Device Detail Page & Tutorial
Overview of the device, power supply variants, and all connections explained in detail.
Go to Detail Page →Firmware & Updates
Current firmware versions as well as instructions for updating and recovery.
Go to Firmware Page →Live Demo
Try out the web interface of the Didactum monitoring system online, with no obligation.
Go to Demo →Frequently Asked Questions
What is the Didactum Monitoring System 500T and what is it used for?
The Didactum Monitoring System 500T is a self-contained 19" 1U monitoring and control unit for data centers, server rooms, and critical infrastructure. It monitors environmental parameters such as temperature, humidity, voltage, leakage, smoke, and airflow, while also functioning as an I/O controller for controlling doors, fans, generators, UPS systems, and circuit breakers – entirely without an external server or additional software.
What network connectivity does the 500T offer?
The Monitoring System 500T now features a Gigabit-capable Ethernet connection with 10/100/1000 Mbit/s. This allows the device to be integrated into modern, high-performance data center networks without limitations.
What power supply variants are available, and how do they differ?
The 500T is available in five variants: 230V AC, 230V AC (Redundant), 24V–48V DC, 230V AC + 24V–48V DC, and 24V–48V DC (Redundant). For the redundant and hybrid variants, the device automatically switches to the line with the highest applied voltage, so that the failure of one line does not interrupt operation. Additionally, all variants can optionally be retrofitted with a battery backup reservation.
What sensors can be connected to the system?
The Monitoring System 500T has 8 analog RJ12 sensor ports directly on the device, as well as 16 potential-free inputs, and can be extended via the CAN bus with additional CAN expansion units, allowing up to 64 analog sensors to be monitored simultaneously. Supported sensors include temperature, humidity, smoke, dust, water, vibration, door, and voltage sensors, among others. In total, up to 130 physical sensors, contacts, and relays can be managed simultaneously.
What are the expansion module and the modem, and are they included in the price?
No. The expansion module (OSDPv2 reader or Modbus/RTU), the optional LTE modem, and the desired power supply variant are not automatic components of the scope of delivery. All three options must be explicitly selected during the ordering process above the cart button under "Select expansion module", "Select modem", and "Select power supply", respectively, in order to be included and installed in the device. Only one of the two expansion modules (OSDPv2 or Modbus/RTU) can be installed in the device at a time.
How are alerts and notifications sent?
The system offers various alerting methods: email notifications to up to 20 recipients, SMS or Web-to-SMS (optionally via LTE modem), SNMP traps for network management systems, syslog messages, FTP transfer, and PUSH notifications. In the event of a network outage, the 500T can communicate via the mobile network and even receive commands by SMS, for example to switch a relay or restart the system.
Can the system be integrated into existing IT infrastructures?
Yes. The system supports SNMP v1/v2c/v3, Modbus TCP/IP, and via expansion modules, Modbus RTU and OSDPv2, and can be integrated into common monitoring platforms such as Nagios, PRTG, Zabbix, or Check_MK. It connects via Gigabit Ethernet and can be managed both through the web interface and via network management tools.
How does initial connection and commissioning of the system work?
Mount the device in the 19" rack, connect it to your network via Gigabit Ethernet, and connect the appropriate power supply according to the ordered variant. The system starts automatically and can be accessed via the default IP address stated in the quick start guide using a web browser. The setup wizard guides you through the basic configuration (network settings, admin password, time zone). Sensors are detected automatically as soon as they are connected to the analog ports. The "Didactum Manager" helps with advanced configuration and setting up alarm rules.
Can the system be expanded if I need more sensors?
Yes. CAN expansion units can significantly increase the number of sensors: each 8-port expansion unit adds 8 additional analog sensors, and each dry-contact expansion unit adds 32 or 64 additional dry-contact inputs. The maximum distance of the CAN devices from the device is up to 225 m. An additional CAN power supply is only needed once more than 12 CAN devices are operated in the chain.
What do the expansion slot and battery slot do?
The expansion slot accommodates either a Modbus/RTU or an OSDPv2 reader expansion module. The separate battery expansion slot accommodates the optional battery backup reservation, which temporarily keeps the device powered in the event of a complete failure of all power inputs. Both options are available separately and are not part of the standard scope of delivery.
Questions About the 500T?
Our support team in Germany will be happy to advise you free of charge on choosing the right variant, 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: 720 MHz
- Total CPU Cores: 2
- Clock: Built-in clock
- Timer: Built-in watchdog
Sensor Technology and Logic:
- Max. Number of Sensors: 130 (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 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: 1 port, max. 32 devices
- Dry Contact Inputs: 16
- 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: 1.5 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
