A switch point machine management unit comprising a control and command logical unit receiving movement commands generated by an interlocking system, said control and command logical unit executing a control and command program; said control and command logical unit having two processing channels (510, 610), each one of said channels provided with an independent central processing unit and each one of said processing channels adapted to execute independently from the other and in parallel to the other the control and command logic program and to generate independently from the other command signals (EN_A, EN_B) for enabling the driving of the switch point machine for displacing the points from the normal to the reversal position or viceversa; a position control unit of the switch point machine for generating switch point machine status signals (RX_A_N, RX_A_R, RX_B_N, RX_B_R) at least relatively to the starting position (N, R) of the points and a signal comparing unit for generating an activation signal as a result of the comparison between command signals and status signals for enabling the driving of the switch point according to the command signals depending on the result of the said comparison characterised in that the signal comparing unit is connected through a voter unit to status control management units, each one consisting in an independent processing unit (11, 12) each one communicating with respectively only one of the processing channels (510, 610) of the control and command logical unit, and each one for carrying out in parallel and independently from the other a comparison between command signals and status signals, the output of each of said two further processing units being fed to the voter unit for generation of an activation signal (ON_VIT), said position control unit comprising: a control switch for opening/closing a normal position control line (CTRL_N; CTRL_R) of the points or a control switch for opening/closing a reverse position control line of the points; each control line connecting a status control signal generator (510; 11) of the control and command logical unit with a status control position module comprising a signal modulator (40, 41) of the status control signal (TX_A; TX_N, TX_R) which is adapted to be switched to operate a status control signal modulation according to two different modulation laws each one of the two different modulation laws being univocally correlated to one end position of the points; the switching being caused by the points position control contacts of the switch point machine assuming different commutation conditions related to the normal or reversal end position of the points; detection means (17, 18) of the modulated status control signal and demodulation means of the modulated status control signal for extracting certain status control signal parameters. a control switch for opening/closing a normal position control line (CTRL_N; CTRL_R) of the points or a control switch for opening/closing a reverse position control line of the points; each control line connecting a status control signal generator (510; 11) of the control and command logical unit with a status control position module comprising a signal modulator (40, 41) of the status control signal (TX_A; TX_N, TX_R) which is adapted to be switched to operate a status control signal modulation according to two different modulation laws each one of the two different modulation laws being univocally correlated to one end position of the points; the switching being caused by the points position control contacts of the switch point machine assuming different commutation conditions related to the normal or reversal end position of the points; detection means (17, 18) of the modulated status control signal and demodulation means of the modulated status control signal for extracting certain status control signal parameters.