Start by pulling the hardware interface lists from each model’s product manual. Compare which physical ports exist, their pinouts, voltage levels, isolation, and whether a relay is supported. Then check how many GPIOs are exposed and whether the GPIO/relay features are supported in the firmware version you’d deploy, not just in marketing specs. Finally confirm that the required interfaces are actually accessible in the firmware you’ll use and verify any model-specific caveats noted in the firmware notes. If you share the target models and what you need to connect, Comset can review the exact hardware interface lists and firmware notes to confirm availability.
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How do I compare two router models for RS-232/RS-485 and GPIO support?
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Use this answer as a practical starting point. Current scope, specifications, compatibility, availability, pricing, timing and next steps should be confirmed directly with Comset where they affect a decision.
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