AN3975

System implementation - HW

Doc ID 022170 Rev 1

7/26

3

System implementation - HW

3.1

Power meter (RS485) part

Figure 2 shows the HW implementation of the power meter part (see Figure 7). It consists

of:

●

Connectivity gateway demonstration board (converts command coming from UART

(UART_B) to UART (UART_A) of the RS485 module).

●

RS485 module (converts UART (UART_A) to RS485 and vice versa).

Figure 2.

Connectivity gateway board with RS485 extension