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

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To test an RS422-to-RS232 converter, a functioning RS422 device and an RS232 device are necessary for direct communication verification. For testing with an RTS controller, specific instructions or equipment may be required to ensure compatibility. Users are encouraged to seek additional networking forums for more specialized support. A suggested resource for further guidance is available at NI's tutorial link. Proper testing equipment is essential for accurate results in RS422 and RS232 communications.
Mike Phan
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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
 
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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/
 

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