Furuno Felcom 50 Operator's Manual page 143

3 Check settings in the Mobile Data Service via RS-232 Properties window:
Modem - Standard 33600 bps Modem (COM1)
Phone number: 28
Click Configure.
4 In the Modem Configuration window, check that the Maximum speed (bps)
is set to 115200.
Click OK
6. DATA COMMUNICATION
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