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RS-422A communications can have several disadvantages, including complexity in wiring and configuration compared to simpler protocols, which may require more technical expertise. It supports only differential signaling, making it less compatible with single-ended systems, potentially limiting integration options. Additionally, while RS-422A can achieve long distances, the maximum cable length is limited to 4,000 feet, which may not suffice for certain applications. Finally, the standard is less commonly used today, which can lead to difficulties in sourcing compatible equipment and components.

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1mo ago

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