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Modbus / Re: modbus vs psm or which is what?
« on: March 25, 2015, 11:36:39 AM »
Can I go from the RJ11 to a DB9 so long as I know which pin is where at both ends? I'm having trouble finding the RJ11 to RS485. Am I dong more than getting a wire from point a to point b. I had already ordered an RS232 to RS485 converter so Ill at lease have that on hand. There is an RJ11 to RS232 converter. Seems like a lot of connections to fail.