RicardoI got some advice from a former user and I was able to make it work, at least partially. An initial code must be entered and then product codes can be stored. The terminal also sent the data through the speaker. The sound seemed a 300 baud modulation. I will provide further instructions and audio samples.
Able to store data and send it by the modem.
A project log for MSI/55 handheld terminal modem
Old handheld terminal for sending orders over the phone. Instructions manual missing.
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