Installation guide

Rev 1.1 9/22/14 17
Getting Started
Hardware
3.2. Connections
10-pin Micro-Fit Power Supply Connector
USB Interface
15-pin Sub-D Serial Interface
SIM Interface
Antenna Interface
 SMA Main
 SMA Diversity
 GPS
3.3. Interfaces
3.3.1. External Interfaces
Power Supply
3V/1V8 SIM Interface
USB Device Interface
Serial Port (UART1)
ON/OFF
1 Interrupt (multiplexed in the Microfit connector)
Reset
Audio Interface
2 GPIOs
LED Status Indicator
3.3.2. Internal Expansion Interface
1 Secondary Serial Port (UART2)
6 GPIOs
2 SPI Bus
1 ADC
1 PCM
1 Interrupt
Reset access to the embedded module
2.8V supply from the USR3500