Low-volume unattended sensors often suit a stable 4G Cat 1 or Cat 4 connection rather than high-capacity 5G. Important features are network coverage, low power use, automatic reconnection, appropriate serial or Ethernet interfaces, secure outbound communication and remote diagnostics.
Batch readings, acknowledge successful delivery and store data locally during outages. Select a SIM plan for the real message volume plus management overhead. Although 3G references remain in older source material, new designs should be checked against current carrier network availability and Comset’s supported current models.
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What connection strategy suits sensors that send small amounts of data but must operate unattended for long periods?
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