Didactum Dry Contact Expansion Module – 32 ports for IP connection of potential-free contacts

The Didactum Dry Contact Board with 32 ports is an advanced and scalable expansion unit for IP‑based integration of potential‑free contacts within professional monitoring and building management systems. Designed for reliability and flexibility, it enables organizations to efficiently register, monitor, and centrally manage critical infrastructure devices such as HVAC systems, UPS units, backup power supplies, and safety equipment.

Highly flexible IP monitoring

With the Didactum Dry Contact Board, your monitoring system gains up to 32 potential‑free/digital inputs. Each port can be individually configured, allowing users to define precise alarm and signal parameters. Incoming signals are transmitted directly via IP and processed in real time.

The centralized display of all status and alarm contacts through the web interface allows administrators to detect failures at once and respond immediately. Critical situations can be identified early, triggering automatic alerts by email, SMS (via GSM modem), or SNMP trap to network management systems.

Scalable expansion for growing systems

For installations requiring more than 32 inputs, Didactum offers the option to expand the board with a second module. This optional upgrade doubles the number of ports to a total of 64 potential‑free contacts. Installation is uncomplicated—even on existing systems—and requires no downtime.

This ensures that the monitoring system can grow flexibly with your infrastructure—a cost‑effective solution for expanding building automation and IT security requirements.

Modular integration for enhanced security

The Dry Contact Expansion Module is fully compatible with all current Didactum monitoring systems. Its modular design ensures that your installation remains extendable at any time. Integration is simple through the available device slot, with automatic detection guaranteeing immediate operability without additional software installation.

Thanks to its open system architecture, the module can also be integrated into SNMP‑compatible management systems, allowing seamless deployment across monitoring, security, and building management platforms.

Typical applications

Data centers: Control and monitoring of UPS units, power systems, AC units, and fire alarms.
Building technology: Integration of power distribution systems and building control contacts into monitoring infrastructure.
Industrial facilities: Logging machine status and security contacts.
IT infrastructure: Integration of alarm and access contacts to enhance physical security.

Easy installation and configuration

Installing the expansion unit is straightforward—simply insert it into the Didactum system and connect it to the CAN bus. After automatic detection, all inputs are immediately available in the web interface. Users can:

Assign custom port names (e.g., “UPS 1”, “HVAC 3”, “Left Door Alarm”)
Define normal states (NO / NC—Normally Open / Closed)
Configure alarms and thresholds
Set up alerts and automated actions

Reliable operation for critical environments

The Dry Contact Board is designed for continuous operation in mission‑critical infrastructures. It uses high‑quality electronic components to ensure maximum reliability and data integrity. All events are logged within the system and can be exported via SNMP manager or Syslog servers.

Key advantages

32 potential‑free inputs, expandable to 64 ports
Centralized IP monitoring of all alarm contacts
Seamless integration with Didactum monitoring systems
Plug‑and‑Play installation without system downtime
Optional alerting via email, SMS, or SNMP trap
Maximum system stability with industrial‑grade components

Intelligent expansion for IP‑based alarm and signal monitoring

The Didactum Dry Contact Expansion Module provides a powerful and flexible solution to extend IP‑enabled monitoring systems by up to 64 potential‑free inputs. With easy integration, modular scalability, and centralized management, this module is an essential component for monitoring data centers, industrial facilities, and building systems efficiently and securely.

Didactum Dry Contact Board: 32 Ports for IP Integration of Potential-Free Contacts

Dry Contact Expansion Module

The Didactum Dry Contact Board with 32 ports is a state-of-the-art solution for IP integration of potential-free contacts in professional monitoring environments. Specifically designed to meet the requirements of modern IT and building management systems, this innovative expansion unit allows integration of up to 32 potential-free contacts into your monitoring system, providing comprehensive control over all alarm and signal contacts essential for secure infrastructure operation.

With the Dry Contact Board, you can reliably monitor climate control systems, UPS units, emergency diesel generators, or other critical systems. Each of the 32 ports can be individually configured to flexibly meet the specific requirements of your facility. The IP connection allows centralized and location-independent monitoring of all connected alarm collection contacts, instantly informing you of faults or outages so you can react quickly before major damage occurs.