SDAA112 September   2025 AM625

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Use Case
  5. 2Platform and Products
    1. 2.1 Hardware
    2. 2.2 Software
  6. 3Methods
  7. 4Overview of Steps to Bring Up the Interface and Establish A Connection
  8. 5Troubleshooting
    1. 5.1 Power and Initialization First
    2. 5.2 Verify Network Before PPP
    3. 5.3 Test Manual Dial First
    4. 5.4 Timing When Dialing Up
    5. 5.5 Serial Communication
    6. 5.6 Chat Script
    7. 5.7 PPP Options
    8. 5.8 Signal Strength and Antenna Setup
    9. 5.9 Modem Reset
  9. 6Summary
  10. 7References

4 Overview of Steps to Bring Up the Interface and Establish A Connection

For a step-by-step implementation of establishing a gateway connection through Point-to-Point Protocol, please see Establishing A Gateway with a Cell Modem on the beagleboard website.

The beagleboard article documents:

  • Powering on the cell modem.
  • Establishing a serial connection with the modem.
  • AT commands: configuring the modem, checking signal strength, and confirming the modem is registered to a network.
  • Linux Commands: automating modem dial up, launching PPP, and testing network connection.