RS422/RS485 Testing - Answers to Questions & Networking Forum Suggestions

[Mike Phan]

Hi all,

The system is RS422 and need a RS422-to-RS232 converter to download source from the system to the RS232 terminal.

Question # 1:
I usually use my laptop to test RS232 loopback. The laptop doesn't support RS422, so how to test to see if the RS422-to-RS232 is working?
(Sometimes, RS232-to-RS422 loopback works, but not on the contrary)

Question # 2:
Suppose the question1 is answered, and the system has a RTS controller. How to test with this controller?

Question # 3:
My major is not Networking and I don't think this is a Networking forum. So, if anyone knows free Networking forums, I would like to have the URL addresses.

Thank you for any help.

Mike

 

[anorlunda]

You need more test equipment. You need a functioning RS442 device ,and a RS232 devide, and a way to tell if they communicate directly.

But if you want to do it yourself, here is an instruction

https://www.ni.com/tutorial/3450/en/