4 Commissioning
N27 can be commissioned either through a serial port or a USB port. This chapter describes how to
connect the module and how to implement commissioning through either port.
4.1 Through Serial Port
Step 1: Connect the EVB board and start it.
1. Use an external power source to supply power.
2. Connect it to the computer through the M5X0-PWR board.
3. Insert a SIM card and install an antenna onto the EVB board.
4. Hold the PWRKEY_N button for 1 seconds, and the module starts up.
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