User's Manual

Cinterion
®
ELS61-US Hardware Interface Overview
1.2 ELS61-US System Overview
9
 ELS61-US_HIO_v00.281 2016-02-11
Confidential / Preliminary
Page 9 of 40
1.2 ELS61-US System Overview
Figure 1: ELS61-US system overview
GPIO
interface
I2C
USB
ASC0 lines
ASC1/SPI
CONTROL
RTC
POWER
Rx diversity
antenna
(UMTS/LTE)
Module
SIM interface
(with SIM detection)
SIM card
Application
Power supply
Backup supply
Emergency reset
ON
Serial interface/
SPI interface
Serial modem
interface lines
I2C
GPIO
3
4
4
5
2
9
1
1
1
2
USB
Rx diversity
1
Status LED
1
DAC (PWM) PWM
2
Fast
shutdown
Fast shutdown
1
1
COUNTER
Pulse counter
1
ASC0 lines
Serial modem
interface lines/
SPI interface
4
Main antenna
(UMTS/LTE)
Main antenna
1