X-NUCLEO-PLM01A1 What is PLM Connector?

[jhSong]

Hello,
I'm interested in Power Line Communication and the X-NUCLEO-PLM01A1.
I would like to confirm before purchasing.

What is the role of the PLM connector (CN1)?
Is it a PLC line?

If so, is the Lab DC Supply Inout Connector (CN2) just a power supply?
The PLM Connector appears to be a Power Amplifier Output. Does this Connector use a PLC Line?

To connect two or more boards, you need to connect the PLM Connector (CN1) to each other.

What is the role of CN1?

Will it be a problem if I don't connect the CN1s to each other?

*This post has been translated from Korean to comply with the ST Community guidelines.

[Andrew Neil]

See the User Manual:  it's where you make the PLM connection - it is the comms link between the two boards:

https://www.st.com/resource/en/user_manual/um2189-getting-started-with-the-xcubeplm1-power-line-communication-software-expansion-for-stm32cube-stmicroelectronics.pdf#page=13

via: https://www.st.com/en/ecosystems/x-nucleo-plm01a1.html#documentation

See also the documentation for the ST7580 chip:

https://www.st.com/en/interfaces-and-transceivers/st7580.html