METHOD TO TRANSFER SIGNAL (VERSIONS) Russian patent published in 2009 - IPC G08B17/10 

FIELD: fire safety.

SUBSTANCE: invention provides the self-diagnostic check by the control of the state and transfer of the additional signal to the control and indicating equipment. There are ways to realise the method of the signal transfer from the linear device to the fire control and indicating equipment through one connection line where the main signal is transferred in the form of the analog signal to be able to control the connection line by the control and indicating equipment as to the break and short circuits. The essence of these versions lies in the transfer of the additional signal on the same line by its breakage or short circuit in the normal or reversed polarity by the switch.

EFFECT: increases the security of the operation and expands the functional capacities.

3 cl, 5 ex