BTW the info on 422 vs.
nmea is all correct except that in the field some manufacturers decided otherwise.
And for the tinkerer - 422 and 232 do not mix readily. At times 232 can be plugged into 422 but at other times this does not
work. As a
rule, get 232usb
cables for 232
equipment and 422usb
cables for 422
equipment.
Cheers,
b.