Can I use this for RS485 serial connection? If so, what is the DB9 pin assignment? Does the Android driver support RS485 connection?
Thank you for posting your question.
RS-232 and RS-485 use a different method of representing logical ones and zeros, so there is no pin-to-pin correspondence between the two. You would need to get an adapter specifically designed for RS-485. This may be difficult for an Android device, because if the driver for a particular adapter is not already supported in an Android device, it is nearly impossible to add after the fact.
This article has some good information about the differences between RS-232 and RS-485:
I hope this helps,
Hi Dave, thanks for the reply. I was asking because i read from prolific (tw) that their PL2303HXD can support RS485 interface.
Yes, but to do that, it would probably need a different interface chip than the one we use.
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