NavCom SF-3050 Rev.I - Manual (Page 93)

SF-3050 GNSS Product User Guide – Rev I
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Figure 85: COM1 Serial Cable Pin Assignment
Figure 86: COM2 Serial Cable Pin Assignment
Supplied USB Device Cable
P/N 94-310266-3006LF is the supplied 6ft (1.83m) data cable fitted with a Positronic plug
type and a USB A plug type, used to connect as Device directly to a USB 2.0 connector.
The pin assignments are provided below.

COM2 - USB is the only USB compliant port.