RS-485 Troubleshooting: Termination, Biasing, Grounding, and DE Timing
Diagnose RS-485 field failures with a scope-first sequence for topology, termination, failsafe biasing, common-mode voltage, grounding, and DE timing.
RS-485 vs RS-422 Transceiver ICs: Topology, Duplex Mode, and Sourcing Checks
Compare RS-485 and RS-422 transceiver ICs by bus topology, wire pairs, duplex mode, driver/receiver structure, protection needs, and RFQ requirements.
MAX485 vs MAX3485: How to Choose a 5 V or 3.3 V RS-485 Transceiver
Compare MAX485 and MAX3485 RS-485 transceiver ICs by supply voltage, MCU logic level, package, suffix, replacement risk, and BOM/RFQ requirements.
RS-485 Transceiver IC Selection Guide: MAX485, MAX3485, SP3485 and RS-422 Options
Choose RS-485 and RS-422 transceiver ICs by voltage, duplex mode, speed, ESD, isolation, package, and replacement risk. Includes MAX485, MAX3485 and SP3485 sourcing checks.