App note: Guidelines for reliable long line 1-wire networks
Here’s a guidelines for reliable 1-Wire Network from Maxim:
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The 1-Wire protocol was originally designed to facilitate communication with nearby devices on a short connection. 1-Wire was also a way to add auxiliary memory on a single microprocessor port pin. Methods were later developed to extend the 1-Wire protocol to network applications well beyond the size of a circuit board. This document discusses various aspects of 1-Wire networks and provides design guidelines for their reliable operation. Several appendices address fine-tuning the 1-Wire bus interface and illustrate 1-Wire communication waveforms in various conditions.