User's Manual

Cinterion
®
ALS3-US R4 Hardware Interface Overview
2.2 ALS3-US R4 System Overview
18
 ALS3-USR4_HIO_v03.915 2017-03-27
Confidential / Preliminary
Page 18 of 44
2.2 ALS3-US R4 System Overview
Figure 1: ALS3-US R4 system overview
USB
Serial
ASC0
UICC
Power
supply
IGT,
Emergency Off
SIM
card
Host application
On/Off
Module
Application
GSM/UMTS/LTE
Antenna diversity
Power for application
(VEXT)
Power indication
(PWR_IND)
Modem interface
Digital
audio
PCM or I2S
codec
GSM/UMTS/LTE
12
GNSS
GNSS antenna
GPIO
2x
GPIO
Antenna
diagnostic
2x
ADC
Antenna
switch
Power
supply
GNSS active
antenna supply,
current limiter
ADC
Net state/
status
Analog
audio
SIM
card
RTC
or