Appendix: Connector Pinout Reference - Elatec TWN4 MultiTech 2 BLE Technical Handbook

A. Appendix: Connector Pinout Reference
A. Appendix: Connector Pinout Reference
Pin Pin Name Function
1 UGND USB Ground. Fed to main Ground through noise-reduction circuit.
2 USB_D+ USB Data +
3 UVCC USB VCC (5V). When using RS232, connect this to external 5V supply.
4 USB_D- USB Data -
5 V24_RXD RS232 RXD (Input)
6 GND Ground
7 V24_TXD RS232 TXD (Output)
8 Hostsense Active-low, enables RS232 transceiver. Short to Pin 6 (GND) when using RS232.
Pin Pin Name Function
1 GND Ground
2 USB_D+ USB Data +
3 Supply 5V Powers the 5V circuitry on board. Input to 3.3V Regulator.
4 USB_D- USB Data -
5 VCC 3.3V Direct access to 3.3V supply net after Regulator. Microcontroller and majority of
circuitry is powered by this.
6 COM1_RX COM1 RX Single-ended port
7 I2C_SCL I2C Clock
8 COM1_TX COM1 TX Single-ended port
9 I2C_SDA I2C Data
10 GPIO3 direct access to microcontroller
11 RESET- Active-low reset to the microcontroller
12 GPIO4 direct access to microcontroller
13 PWRDWN- Active-low powerdown to 3.3V Converter/Regulator
14 GPIO5 direct access to microcontroller
15 GPIO6 direct access to microcontroller
16 GPIO7 Active-low reset to BLE module
Table A.2.: Generic Interface DRP2 Port (X1) Pin Configuration
Table A.1.: Main Interface DF11 Port (X2) Pin Configuration
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