mangOH Red Manual page 13

When the mangOH Red is powered, the Power LED turns solid green.
Note: For future reference, the mangOH Red's power supply (USB port on your dev machine, or an AC adapter)
connects to the board via either USB connector—CF3 USB or CONSOLE USB (depending on the jumper position on
the power header). If an AC adapter is connected to CF3 USB, SSH/AT connections are not possible; if it is
connected to CONSOLE USB, serial USB connections are not possible.
7. On the dev machine, open another terminal window.
8. Make sure the modemmanager package is removed from your system (this package causes problems with
mangOH Red if it is not removed):
$ sudo apt-get remove -y modemmanager
9. Wait 10-15 seconds for the mangOH Red to enumerate.
10. Test the CF3_USB connection:
$ ping 192.168.2.2
You should receive ping responses. Press Ctrl+C to cancel the ping request and return to the command
prompt.
Rev 3 9/21/17
Ctrl+C pressed to cancel ping
13
Power LED
Replies received, connection working
3.1: Hardware Setup