Input/ output ports in main unit peripheral devices can be connected. This can produce alarms in case sensor activates (Input device called as a sensors such as a door switch, smoke detector, PIR sensor or glass break detector can be used for triggering an alarm event and it can be connected as inputs port. Output ports can be connected to control devices or relays, for instance, to open/close doors or turn on/off lights upon alarm). For e.g our MD2104, MD2108, MD2116 all in one IP camera like MCIPDVGS02, MIPD13AWP4A, MIPD24AWP4A & alarm panel MALP1604 has this function. In high security this can be more useful for taking action during the event.