New 485 transceiver
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Here's an interesting idea for RS485 networking. It's a transceiver you can cross wire and still have your system function.
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Quote:
Sympol is NOT interoperable with RS-422 or RS-485; that is, designers may not mix Sympol nodes with existing RS-485 nodes. I'ts not RS485. It works by active and passive bus lines, a bit like can-bus, but in this case both positive and negative levels are considered active. I'ts not compatible with DMX/RDM. |
Crossed wires
You will have to be able to recognize bad data as the result of crossed wires but these http://focus.ti.com/docs/prod/folder...65hvd1794.html will let you swap wires on chip.
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