EVK-N2 - User guide
UBX-17005115 - R05
Starting up
Page 12 of 18
8.
It is possible to access SARA-N2 module’s secondary / auxiliary UART for diagnostic purpose. To
do so:
Connect a USB cable to the mini USB connector (Cellular USB, J501 on EVB). LED DL501 lights
blue.
In this case, two COM ports are enabled with Windows (the numbering of the COM ports can be
seen via the Windows Device Manager):
o
SARA-N2 UART interface is available over the first COM port (for AT commands and data)
o
SARA-N2 secondary / auxiliary UART interface is available over the second COM port (for
diagnostic)
Make sure to appropriately set the related slide switches:
o
SW401 set to On-Board
o
SW403 set to Mini-USB
o
SW510 set to UART1
Then, run a terminal application (as for example the u-blox m-center tool), selecting the
appropriate diagnostic COM port with the following settings:
o
Data rate: 921600 bit/s
o
Data bits: 8
o
Parity: N
o
Stop bits: 1
o
Flow control: None
See Appendix
for how to configure the u-blox m-center AT terminal for Windows.
