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==2022-05-24: RS232 serial interface IC and RS485 TX line change==
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==2022-05-24: Modem Firmware Change==
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All RUT955 devices manufactured starting from Q3 2022, will require firmware version '''RUT9_R_00.07.02''' or newer for the RS232 and RS485 interfaces to function properly.
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Starting from Q4 2023, all TRB140 devices will be manufactured with a new modem firmware version. Downgrading to previous modem firmware versions will no longer be supported.  
    
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