M1 Support Forum Replace Uplink 4500EZ – new cellular with serial comms?

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    David Scott

      I got notified that AT&T is shutting down the freqs that serve the Uplink 4500EZ connected to my panel. It’s a serial connection and has been rock solid, so I’d like to replace it with a new unit that does serial comms. I tested the Uplink 5500ATT a couple of years ago, but apparently that uses a different command set and is incompatible with the M1. Anyone have a working cellular modem that uses serial comms?

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