Specifications

Cinterion
®
EHS5-E/EHS5-USR4 Hardware Interface Overview
1.2 EHS5-E/EHS5-USR4 System Overview
11
 ehs5_hio_v04.000 2019-01-16
Confidential / Preliminary
Page 11 of 46
1.2 EHS5-E/EHS5-USR4 System Overview
Figure 1: EHS5-E/EHS5-USR4 system overview
GPIO
interface
I2C
USB
ASC0 lines
ASC1/SPI
CONTROL
RTC
POWER
ANTENNA
(GSM/UMTS
quad band)
Module
SIM interface
(with SIM detection)
SIM card
Application
Power supply
Backup supply
Emergency reset
AUTO_ON, ON
Serial interface/
SPI interface
Serial modem
interface lines
I2C
3
4
4
5
2
2
1
1
2
USB
Antenna
1
PCM
Digital audio
(PCM)
4
Status LED 1
DAC (PWM) PWM 2
Fast
shutdown
Fast shutdown 1
1
ADC ADC 1
COUNTER
Pulse counter
1
ASC0 lines
Serial modem
interface lines/
SPI interface
4