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16
a no load voltage swing of 0.2Vdc to 4.8Vdc.
This output normally provides ASCII
sentences formatted per
“NMEA 0183,
Version 2.0”
. User selectable baud rates
of 1200, 2400, 4800, and 9600 are
available. The data output on this pin is
identical to the data output on TXD1.
Yellow: VAUX - Optional External Backup Power
Connection. This is an optional connection.
Internal battery capacity is 180 mA hour.
Typical current requirement is 65 uA @
5VDC. If used, a 4VDC to 30 VDC power
source is required.