Apparato elettronico con uscita a trasmissione digitale e seriale e dispositivo per misurare grandezze elettriche comprendente tale apparato elettronico

摘要

The present disclosure relates to an electronic apparatus (1) having a serial and digital transmission output which comprises a processing unit (2), an output clamp (3) comprising first, second and third output terminals (31, 32, 33), said first terminal being an output terminal configured to emit a digital signal (Digit); a serial line (4), comprising first and second serial data lines (41,42) and a ground line (43). The electronic apparatus (1) is characterized by comprising a switch device (5), in signal communication with said processing unit (2), said switch device (5) comprising a first electronic switch (6) and a second electronic switch (7), wherein one end of said first electronic switch (6) is electrically connected with a first serial data line (41) and the other end of said first electronic switch (6) is electrically connected with said first terminal (31) of said output clamp (3), wherein one end of said second electronic switch (7) is electrically connected with the end of the first electronic switch (6) that is electrically connected with said first terminal (31) of the output clamp (3) and the other end of said second electronic switch (7) is electrically connected with said third terminal (33) of said output clamp (3), said second serial data line (42) is electrically connected with said second terminal (32) of said output clamp (3), said ground line (43) is electrically connected with said third terminal (33) of said output clamp (3), - said processing unit (2) generates a control signal (V) which is configured: - to cause said first electronic switch (6) to switch to the closed configuration and to cause the second electronic switch (7) to switch to the open configuration, so that said first line (41) of the serial line (4) will be on the first terminal (31) of the output clamp (3); - to cause said first electronic switch (6) to switch to the open configuration and to cause the second electronic switch (7) to switch to the open or closed configuration, so that said digital signal (Digit) will be on said first terminal (31) of the output clamp (3) in the open or closed state respectively.