Data transmission device and financial device using same

1. A data transmission device comprising: a first device comprising a first memory;

a second device comprising a plurality of sensors, a multiplexer to which data output from the plurality of sensors is input, and a counter connected to the multiplexer;

a first transmission line configured to transmit a clock of a signal generator mounted on the first device or the second device to the second device or the first device;

a second transmission line configured to transmit data output from the multiplexer according to an output from the counter of the second device to the first memory of the first device; and

a third transmission line configured to transmit the output from the counter of the second device to the first device to enable the data transmitted to the first memory of the first device to be stored in a second memory or output;

wherein the first device is a main board and the second device is a sub board; and

wherein the plurality of sensors is connected to the sub board through a cable, or is mounted directly on the sub board and connected to the multiplexer through a circuit pattern formed on the sub board.

2. The data transmission device according to claim 1 , wherein the first memory is a shift register.

3. The data transmission device according to claim 1 , wherein the second memory is comprised in the first device.

4. The data transmission device according to claim 1 , wherein the second memory is a storage register.

5. The data transmission device according to claim 1 , wherein the first device further comprises a data output unit connected to the first memory.

6. The data transmission device according to claim 1 , wherein the signal generator synchronizes the first device with the second device.

7. The data transmission device according to claim 1 , wherein the first device comprises central processing unit (CPU), and the output of the plurality of sensors is transmitted to the first device and processed by the CPU.

8. The data transmission device according to claim 1 , wherein the signal generator is mounted on the first device, and the clock of the signal generator is transmitted to the counter of the second device through the first memory and the first transmission line.

9. The data transmission device according to claim 1 , wherein the signal generator is mounted on the second device, and the clock of the signal generator is transmitted to the first memory of the first device through the counter and the first transmission line.

10. A financial device comprising a main board, a sub board, and first to third transmission lines connecting the main board to the sub board, wherein the main board comprises a first memory,

the sub board comprises a plurality of sensors, a multiplexer to which data output from the plurality of sensors is input, and a counter connected to the multiplexer,

the first transmission line transmits, to the sub board or the main board, a clock of a signal generator mounted on the main board or the sub board,

the second transmission line transmits the data output from the multiplexer to the first memory of the main board according to the output from the counter of the sub board, and

the third transmission line transmits the output from the counter of the sub board to the main board to enable the data transmitted to the first memory of the main board to be stored in a second memory or output.

11. The financial device according to claim 10 , wherein the plurality of sensors comprises at least one of a sensor sensing the opening or closing of a shutter, a sensor sensing the revolution or revolution count of a roller, and a sensor sensing the motion of a guide.

12. The financial device according to claim 10 , wherein the sub board is physically separated from the main board.