The gateway has a USB-C connector which provides virtual COM port. Accessing the gateway this way allows you to debug and configure the gateway. This is the only way to access the terminal when the network is not accessible (without SSH access).


The USB connection should exclusively be used for administration/configuration and should not be left connected during normal operation of the gateway. The IP protection level is also not guaranteed during USB service connector use.

CLI access through virtual COM portLink to CLI access through virtual COM port

To access the gateway through USB:

  1. Power up the gateway with passive PoE through the Ethernet connector
  2. Connect the gateway to the PC with a USB cable
  3. The virtual COM port is automatically detected by the PC
    • On Windows a new virtual COM port will appear in the device manager under the name ELMO GMAS (COMxx)
    • On Linux a new virtual COM port will appear in the folder /dev/ttyACMxx
  4. A terminal program like PuTTY or minicom can be used with the following parameters:
Parameter
Value
Baudrate115200
Data bits8
Stop bits1
Paritynone
Flow controlnone
Log in with the above default credentials. You should see the following:

Congratulations ! You are now ready to configure the gateway. Before that, we want to give you a quick System overview of the system.

Configure static addressingLink to Configure static addressing

If you used USB access just to set a static IP, you can now run:

Enable service connection

sudo nmcli connection up service
BASH

Your gateway will then be accessible at the address 192.168.8.8 (until next reboot). This will allow you to access the GUI to reconfigure networking as needed.

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