Documentation for Intellect 4.11.0-4.11.3. Documentation for other versions of Intellect is available too.

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Sensor-Relay cards are multichannel digital-analogue converters and transmitters of up to 4 control signals to executive devices (relays) designed to be used in video surveillance systems built using FS-5, FS-6, FS-16 and FS-8 video capture cards.

While working with Sensor-Relay cards it is necessary to take into account the following electrical specifications:

  1. Current state of a sensor.
    Depending on the value of resistance between input contacts on the line, the current state of a sensor can be:
    1. close (below 3 kiloohms);
    2. open (over 10 kiloohms);
    3. undefined (from 3 to 10 kiloohms).

    Note

    Undefined state may be determined by the system as close or open.

  2. State of a relay at the output.
    State of a relay at the output is to be be Open for Sensor-Relay card. The following conditions are to be met:
    1. maximum current through the open collector– 150 milliamperes;
    2. resistanse – 24 volts;
    3. minimal resistanse of connected relay– 160 ohms.

Technical specifications of Sensor-Relay cards are to be taken into account while connecting the sensors.

Parameter

4/4 Sensor-Relay cards

 16/4 Sensor-Relay cards

Guard loops (sensors)

4

16

Breakdown voltage

1000 V up to  1 minute

1000 V up to 1 minute

Control output (relays)

4

4

Open collector (interface)

24, 30 ma

24, 30 ma