DEV-CD-1309C1 2 3 4 5 6 7 8 U1 XC6204B182MR 3 D 1 GND CE VIN VOUT 5 C1 10u D J2 IF_VOLTS 3V3 2 4 BYP U2 XC6204B332MR 3 1 15 GND CE VIN VOUT C2 10u C4 100n C8 2 4 2 4 5 6 FORCE_OFF_B BYP VCC 5 MAX3221_ST 9 R1_OUT 11 T1_IN C1+ C1- 16 3V3 CON1 U3 8 R1_IN 13 T1_OUT V+ V3 7 C9 100n C10 100n 1 2 3 4 5 6 7 8 9 10 11 DCD RXD TXD DTR GND DSR RTS CTS RI SHIELD SHIELD DB9 L1 10u C3 10u C2+ C2- 3V3 R1 2k2 3V3 R2 2k2 T1_IN 100n 14 12 1 IF_VOLTS U4 C SW1 INTERFACE ON/OFF 1 2 3 A1 GND A2 Y1 VCC Y2 6 5 4 C7 100n 1 3 10 INVALID_B GND FORCE_ON EN_B TO PC RS232 PORT HOST INTERFACE LEVEL C5 100n C 2 NC7WZ07P6X R1_OUT GND B GND CON2 1 2 3 4 5 6 7 Keyed Here > 8 9 10 11 12 13 14 15 16 17 18 18W_SKT_ST U5 1 2 4 5 10 9 13 12 C6 100n UART_RX 3 UART_TX 6 SPI_MISO SPI_C……