EdgeRouter - How to Connect to Serial Console
Overview
Readers will leader how to connect to an EdgeRouter's RJ45 serial console port using a console cable.
Supported Models & Serial Console Settings
The tables below list the EdgeRouter models that are equipped with an RJ45 serial console port:
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The default serial port settings are listed below:
- Baud rate: 115200
- Data bits: 8
- Parity: NONE
- Stop bits: 1
- Flow control: NONE
Connecting to Serial Console
A USB-to-Serial adapter will be used to connect to the console port of the EdgeRouter.
- RJ45 to DB9 serial console cable (rollover cable)
- USB to DB9 adapter
- Terminal emulation program, such as PuTTY or the macOS/Linux terminal
1. Open the terminal emulator and specify the serial COM line and the baud rate/speed.
Windows Client
Enter the following information in the PuTTY window.
macOS Client
Open Terminal Application and find the serial interface ID.
ls -ltr /dev/*usb*
The serial interface will display as tty. Example output below:
ls -ltr /dev/*usb*
crw-rw-rw- 1 root wheel 21, 3 Feb 8 15:48 /dev/cu.usbserial-AI038TPF
crw-rw-rw- 1 root wheel 21, 2 Feb 9 08:56 /dev/tty.usbserial-AI038TPF
Use the screen command to connect to console by pasting in the path to the serial interface.
screen /dev/tty.usbserial-AI038TPF 115200
/dev/tty.usbserial-AI038TPF with the value given when using the ls -ltr /dev/*usb* command.2. Connect to the EdgeRouter and log in using your credentials.
Welcome to EdgeOS ubnt ttyS0
By logging in, accessing, or using the Ubiquiti product, you
acknowledge that you have read and understood the Ubiquiti
License Agreement (available in the Web UI at, by default,
http://192.168.1.1) and agree to be bound by its terms.
Login: <username>
Password: <password>
3. Press ? to get a listing of all commands available.