Contents
1 Supported radio modules 5
2 Functional description 6
2.1 Takingintooperation............................... 6
3 Development board 8
3.1 Blockdiagram................................... 8
3.2 Jumpers...................................... 9
3.3 Connectors .................................... 11
3.3.1 CON1 .................................. 12
3.3.2 CON2 .................................. 12
3.3.3 CON3 .................................. 12
3.3.4 CON4 .................................. 13
3.4 SwitchesandButtons .............................. 14
3.4.1 RESET GNSS button . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.4.2 ON/OFFSwitch............................. 15
3.4.3 Powersupply .............................. 15
3.4.3.1 Bus powered, power supply through USB . . . . . . . . . . . . 15
3.4.3.2 Battery powered, power supply through AAA battery . . . . . . 15
3.4.4 JP1 - Current Measurement . . . . . . . . . . . . . . . . . . . . . . 15
3.4.5 JP2 - UART Communication Interface Selection . . . . . . . . . . . 16
3.4.6 JP3 - Communication Interface . . . . . . . . . . . . . . . . . . . . 16
3.4.7 JP4 - Antenna Selection . . . . . . . . . . . . . . . . . . . . . . . . 16
3.4.8 JP5 - Active Antenna Bias . . . . . . . . . . . . . . . . . . . . . . . 16
3.4.9 JP6 - CTS/RTS Pull Resistors . . . . . . . . . . . . . . . . . . . . . 16
3.4.10JP7.................................... 16
3.4.11 JP8 - Power Supply selection . . . . . . . . . . . . . . . . . . . . . 16
3.4.12UART/USB............................... 17
3.4.13LED ................................... 17
3.4.13.1 STATUS GNSS LED . . . . . . . . . . . . . . . . . . . . . . . . 17
3.4.13.2 1PPSGNSSLED.......................... 17
3.4.13.3 TXGNSSLED ........................... 17
3.4.14 Proprietary RF Block . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.5 Schematic..................................... 18
3.6 Layout....................................... 21
4 Regulatory compliance information 23
4.1 Exemptionclause................................. 23
5 Important notes 24
5.1 General customer responsibility . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.2 Customer responsibility related to specific, in particular safety-relevant ap-
plications ..................................... 24
5.3 Best care and attention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.4 Customer support for product specifications . . . . . . . . . . . . . . . . . . 24
5.5 Productimprovements.............................. 25
5.6 Productlifecycle ................................. 25
Evaluation board manual version 1.2 © June 2020
www.we-online.com/wireless-connectivity 3