User's Manual

SARA-R4 series - System Integration Manual
UBX-16029218 - R03 Contents
Page 4 of 94
Contents
Preface ................................................................................................................................ 3
Contents .............................................................................................................................. 4
1 System description ....................................................................................................... 7
1.1 Overview .............................................................................................................................................. 7
1.2 Architecture .......................................................................................................................................... 8
1.3 Pin-out ................................................................................................................................................. 9
1.4 Operating modes ................................................................................................................................ 12
1.5 Supply interfaces ................................................................................................................................ 14
1.5.1 Module supply input (VCC) ......................................................................................................... 14
1.5.2 Generic digital interfaces supply output (V_INT) ........................................................................... 16
1.6 System function interfaces .................................................................................................................. 17
1.6.1 Module power-on ....................................................................................................................... 17
1.6.2 Module power-off ....................................................................................................................... 18
1.6.3 Module reset ............................................................................................................................... 20
1.7 Antenna interface ............................................................................................................................... 21
1.7.1 Antenna RF interface (ANT) ......................................................................................................... 21
1.7.2 Antenna detection interface (ANT_DET) ...................................................................................... 22
1.8 SIM interface ...................................................................................................................................... 22
1.8.1 SIM interface ............................................................................................................................... 22
1.8.2 SIM detection interface ............................................................................................................... 22
1.9 Data communication interfaces .......................................................................................................... 23
1.9.1 UART interface ............................................................................................................................ 23
1.9.2 USB interface............................................................................................................................... 25
1.9.3 DDC (I
2
C) interface ...................................................................................................................... 26
1.10 General Purpose Input/Output ........................................................................................................ 26
1.11 Reserved pins (RSVD) ...................................................................................................................... 26
1.12 System features............................................................................................................................... 27
1.12.1 Network indication ...................................................................................................................... 27
1.12.2 Antenna supervisor ..................................................................................................................... 27
1.12.3 Dual stack IPv4/IPv6 ..................................................................................................................... 27
1.12.4 TCP/IP and UDP/IP ....................................................................................................................... 27
1.12.5 FTP .............................................................................................................................................. 27
1.12.6 HTTP ........................................................................................................................................... 28
1.12.7 Firmware update Over AT (FOAT) ................................................................................................ 28
1.12.8 Firmware update Over The Air (FOTA) ......................................................................................... 28
1.12.9 Power saving ............................................................................................................................... 28
2 Design-in ..................................................................................................................... 30
2.1 Overview ............................................................................................................................................ 30
2.2 Supply interfaces ................................................................................................................................ 31