Specifications

WA_DEV_FEX20_PTS_004 Rev 001 June 30, 2010 18
4. Interfaces
4.1. General Purpose Connector
The Expansion Card has a 50-pin expansion card connector. The high-density 50-pin Expansion Card
Connector is used for interfacing the Expansion Card with the Fastrack Xtend motherboard.
The interfaces available on the GPC are listed in the following table.
Table 5: Available Interfaces on the GPC
Sub-section
Interface
Driven by AT
Commands
Driven by the Sierra
Wireless Software Suite
4.4
Serial Interface

4.5
Auxiliary Serial Link (UART2)


4.3
General Purpose Input/Output


5.5
Analog to Digital Converter


5.6
Digital to Analog Converter

5.3
External Interrupt


4.7
Digital Audio Interface (PCM)

