Specifications

Table Of Contents

Cinterion

EHS5-E/EHS5-USR4 Hardware Interface Overview

Contents

 ehs5_hio_v04.000 2019-01-16

Confidential / Preliminary

Page 3 of 46

Contents

1 Introduction ................................................................................................................. 7

1.1 Key Features at a Glance .................................................................................. 7

1.2 EHS5-E/EHS5-USR4 System Overview.......................................................... 11

2 Interface Characteristics .......................................................................................... 12

2.1 Application Interface ........................................................................................ 12

2.1.1 USB Interface...................................................................................... 12

2.1.2 Serial Interface ASC0 ......................................................................... 13

2.1.3 Serial Interface ASC1 ......................................................................... 14

2.1.4 UICC/SIM/USIM Interface................................................................... 15

2.1.5 Digital Audio Interface......................................................................... 16

2.1.6 GPIO Interface .................................................................................... 16

2.1.7 I

C Interface ........................................................................................ 17

2.1.8 SPI Interface ....................................................................................... 18

2.1.9 PWM Interfaces .................................................................................. 18

2.1.10 Pulse Counter ..................................................................................... 18

2.1.11 Status LED.......................................................................................... 18

2.1.12 Fast Shutdown .................................................................................... 18

2.2 RF Antenna Interface....................................................................................... 19

2.2.1 Antenna Installation ............................................................................ 20

2.2.2 RF Line Routing Design...................................................................... 20

2.2.2.1 Line Arrangement Examples ............................................... 20

2.2.2.2 Routing Example................................................................. 26

2.3 Sample Application .......................................................................................... 27

3 Operating Characteristics ........................................................................................ 29

3.1 Operating Modes ............................................................................................. 29

3.2 Power Supply................................................................................................... 30

4 Mechanics.................................................................................................................. 31

4.1 Mechanical Dimensions of EHS5-E/EHS5-USR4............................................ 31

5 Regulatory and Type Approval Information ........................................................... 33

5.1 Directives and Standards................................................................................. 33

5.2 SAR requirements specific to portable mobiles ............................................... 36

5.3 Reference Equipment for Type Approval......................................................... 37

5.4 Compliance with FCC and IC Rules and Regulations ..................................... 38

6 Document Information.............................................................................................. 39

6.1 Revision History ............................................................................................... 39

6.2 Related Documents ......................................................................................... 39

6.3 Terms and Abbreviations ................................................................................. 39

6.4 Safety Precaution Notes .................................................................................. 43