Inquiries about industrial switches

[youmelove8]

Inquire about Cisco's general and industrial switches.

In short, what I understand is:

a. nomal switch: TCP/IP support
b. Industrial switch: TCP/IP support + IEC-61850 support

Questions
1. Can i understand as above?
2-1. Can you mix normal and industrial switches?
(Sure, it seems possible, but let me know.)
2-2. If you can mix regular and industrial switches, I wonder if you can connect the same physical connections as regular switches.

[marce1000]

                                                    - Go here for a general overview :

          https://www.cisco.com/c/en/us/products/switches/industrial-ethernet-switches/index.html

 Consult the datasheet for a particular model concerning IEC-61850 support. You should be able to mix them with normal switches. The question about physical connections is somewhat unclear.

 M.