Documentation for Intellect 4.9.8. Documentation for other versions of Intellect is available too.

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DI/DO card is connected to the video capture card and is used for connecting guard loops (sensors) and relays to the control system - the server with installed INTELLECT™ software. General information about sensors and relays is given in the table:

Type of device



Operation conditions

Changes in operation condition

Examples of devices


Interface line of external sensor and control system

Informs the control system

about changes in sensor status  

Closed– logical one

Open – logical zero


Opening/closing – when

sensor detects the alarm

Annunciators (smoke, heat,

window, etc), button 


Interface line of control system and executive device

Changes operation condition of executive

device on command from the control system

Closed – logical one

Open – logical zero  


Opening/closing – on command

from the control system.

Annunciators (light, sound, etc.),

mechanized gates

Electrical and technical specifications of Sensor-Relay cards are given in Appendix 6. Electrical and technical specifications of Sensor-Relay cards section.