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Old 09-18-2008
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Tommays-

NMEA 0183 is actually preferentially defined as RS-422 protocol per this PDF. To quote another PDF on NMEA 0183 protocol:

Quote:
Electrical specification

The latest specifications for NMEA 0183 (version 2 and
onwards) should, as a minimum, meet the requirements
of the computer standard “RS22” (Standard EIA-22-A).
They use +5 / 0 volt signalling, which is low voltage and
easy to interface to computer equipment.
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Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

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