Gemalto Cinterion ELS61T-US - Default Chapter; Table of Contents

Cinterion
®
LTE Terminals Hardware Interface Description
Contents
122
 ELSxT_HID_v04 2018-09-04
Confidential / Preliminary
Page 3 of 102
Contents
0 Document History ...................................................................................................... 8
1 Introduction ............................................................................................................... 10
1.1 Related Documents ......................................................................................... 11
1.2 Terms and Abbreviations ................................................................................. 11
1.3 Regulatory and Type Approval Information ..................................................... 13
1.3.1 Directives and Standards.................................................................... 13
1.3.2 Safety Precautions.............................................................................. 16
1.4 Product Label................................................................................................... 18
2 Product Concept ....................................................................................................... 20
2.1 Key Features at a Glance ................................................................................ 20
3 Interface Description ................................................................................................ 24
3.1 Overview .......................................................................................................... 24
3.2 Block Diagram.................................................................................................. 25
3.3 Terminal Circuit................................................................................................ 26
3.4 Operating Modes ............................................................................................. 27
3.5 RS-232 Interface.............................................................................................. 28
3.5.1 9-Pole D-sub Connector ..................................................................... 28
3.6 GPIO Interface ................................................................................................. 29
3.6.1 Serial Interface ASC1 ......................................................................... 32
3.6.2 Digital Audio Interface (ELS61T-E2)................................................... 33
3.6.3 I
2
C Interface ........................................................................................ 37
3.6.4 SPI Interface ....................................................................................... 38
3.6.5 PWM Interface .................................................................................... 39
3.6.6 Pulse Counter ..................................................................................... 39
3.6.7 Analog-to-Digital Converter (ADC)...................................................... 39
3.6.8 DSR0 signal ........................................................................................ 39
3.7 Ethernet Interface ............................................................................................ 40
3.8 Power Supply................................................................................................... 41
3.9 Power Up/Power Down Scenarios................................................................... 42
3.9.1 Turn LTE Terminals on ....................................................................... 42
3.9.2 Reset/Restart LTE Terminals.............................................................. 42
3.9.3 Turn LTE Terminals off ....................................................................... 43
3.9.4 Disconnecting power supply ............................................................... 43
3.10 Automatic thermal shutdown............................................................................ 44
3.11 Hardware Watchdog ........................................................................................ 44
3.12 RTC.................................................................................................................. 44
3.13 SIM Interface.................................................................................................... 45
3.14 Status LEDs ..................................................................................................... 46
3.15 RF Antenna Interface....................................................................................... 47