Selecting biasing resistor values for MAX3485

@leansolution

Think hard about adding bias resistors because they will reduce the total number of devices you can have on the bus.

Have you also considered the grounding issues in an industrial application, will you need an isolated device?

If you want something that is bulletproof consider the LTC2877

For an industrial application where noise is a problem, I would stay with a 5V bus.

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