olemus
operaatorikonsool, mis ühendatakse jadapordi kaudu
= an operator console that connects via a serial port

ülevaateid
https://en.wikipedia.org/wiki/System_console

http://www.tldp.org/HOWTO/Remote-Serial-Console-HOWTO/intro-why.html

https://help.ubuntu.com/community/SerialConsoleHowto