Selection Guide for the Right Signal Cable

In our previous Keystone Academy blog, "RS485 vs RS422", we introduced the similarities and differences between the 2 wire protocols, RS485 and RS422. Though similar, the 2 wire protocols are not the same.

After knowing their differences, you may be wondering how to select a suitable signal cable. Here, we have distilled the key considerations to look into:

  • Insulation
  • Screening
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