Multitech MultiConnect MTC-L4G2D User Manual page 4

CONTENTS
Antenna Specifications ............................................................................................................................................. 22
Account Activation for Cellular Devices ..................................................................................................................... 22
Device Phone Number ................................................................................................................................................ 22
Chapter 6 - Configuring and Communicating with Your Device.............................................................................. 23
Before Using the Device.............................................................................................................................................. 23
Using Command Mode and Online Data Mode.......................................................................................................... 23
Dual Carrier Firmware for Cellular Radio.................................................................................................................... 24
Multiple Carrier Firmware for Cellular Radio.............................................................................................................. 24
Verizon FOTA (Firmware Over the Air) ....................................................................................................................... 25
Verifying Signal Strength............................................................................................................................................. 25
Example .................................................................................................................................................................... 26
Checking Network Registration................................................................................................................................... 26
Sending and Receiving Data........................................................................................................................................ 26
Connecting Device to TCP Server as TCP Client ........................................................................................................ 26
Configuring Device as UDP Listener to Accept UDP Client Connections ................................................................. 27
Configuring Device as UDP Client to Connect to UDP Server ................................................................................... 28
Transferring FTP File to FTP Server ........................................................................................................................... 29
Downloading File from FTP Server............................................................................................................................ 31
Reading, Writing and Deleting Messages ................................................................................................................... 32
Reading Text Messages............................................................................................................................................. 32
Sending Text Messages ............................................................................................................................................. 32
Deleting Messages .................................................................................................................................................... 33
Chapter 7 - Using Linux with the L4G2D Radio....................................................................................................... 35
Overview ..................................................................................................................................................................... 35
Pre-Requisites ............................................................................................................................................................ 35
Modem Manager and Network Manager Applications .............................................................................................. 35
USB Interfaces............................................................................................................................................................. 35
Device File Names Persistence After Modem Power Cycle or Reboot..................................................................... 35
AT Command Interface ............................................................................................................................................. 35
Qualcomm Media Interface (QMI)............................................................................................................................ 36
Examples ..................................................................................................................................................................... 36
Distribution And Kernel Details................................................................................................................................. 36
Using PPP and Modem AT Command Interface to Create Network Interface......................................................... 36
Finding AT Command Interpreter Device Files ......................................................................................................... 37
Opening a Device File with a Terminal Program: ..................................................................................................... 37
AT&T Only - Installing the SIM And Configuring the Modem's Packet Data Protocol (PDP) Context ...................... 37
Creating PPP Configuration Files and Scripts............................................................................................................ 38
Editing
/etc/ppp/peer
File............................................................................................................................................................................. 38
Turning Network Interface ppp0 On and Off............................................................................................................ 39
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MultiConnect Cell MTC-L4G2D User Guide