Sending BREAK to serial devices

A serial break signal can be sent to a connected serial device to signal it to enter a pre-boot environment or other special operating modes.

When connected to the serial port via portmanager, use the following escape sequence to send a serial break:

• Hit <enter>
• Type: ~b

Note that the OpenSSH command line client also uses ~ as its escape character.  Therefore if you are connected using the command line OpenSSH client, you must send a second ~ character:

• Hit <enter>
• Type: ~~b

Alternatively, you can change the default escape character, see this article for details.

Note that all Opengear devices are Sun Break Safe.