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Control siren and flashing light

All Didactum monitoring systems and switched PDUs can connect up to two alarm lights, for example a siren and/or a strobe light, as well as other low-power devices, for example a potential-free contact output module, to E1, E2 - two outputs of electronic relays.

Connection

To connect the alarm light to the 12V output, connect the device to the terminal using a cable, observing the correct polarity. The device interface allows you to switch the siren, strobe light, or a potential-free contact on and off, as well as send a pulse to the corresponding output. The maximum current draw is limited to 250 mA.

Check the power supply in test mode. In the system interface, go to Main Menu → System Structure → Alarm. In the window that appears, click "Pulse." The strobe light will illuminate, and the siren will sound. To configure the alarms, you must set the logic.

Caution: Do not connect any devices to the outputs while the monitoring system is powered on.

12V relay configuration (alarm light or strobe light)

a) Log in to the monitoring system's web interface.

b) To configure the relay: Go to System Structure >> Power Supply 12 V 0.25 A >> Select Relay.

c) By default, Power-1 and Power-2. Rename it, set the initial state, and adjust the pulse duration in seconds to a specific period.

Alarm Siren with Strobe Light

Alarm Siren with Strobe Light
The Didactum alarm siren connects directly to the monitoring system and can be controlled via a 12V DC, 0.25A electronic relay output from Didactum monitoring systems. Upon an alarm event—triggered by sensors such as water, smoke, temperature, or access control sensors—the siren emits a loud acoustic alarm and a striking light signal.

Failures like fire, water damage, temperature rise, intrusion, or power outage can have serious consequences. Integration of an alarm siren into the server room alarm system enables immediate acoustic and visual warning during incidents, allowing IT managers and security personnel to respond quickly and effectively.

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