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.Three optional cables are available to connect the GPS45XL to an
external power source or interface with another unit or PC:
• Cigarette Lighter Adapter— Allows connection to a 12- volt DC
cigarette lighter plug.
• Data Cross-Load Cable— Allows data transfer between GPS
38/40/45/45XL units.
• PC Kit Data Cable— PC interface cable with 9-pin ‘D’ serial data
connector.
The following interface formats are supported by the GPS 45XL for
driving three NMEA devices:
NMEA 0180 NMEA 0182
NMEA 0183 version 1.5
Approved sentences:
GPBWC, GPGLL, GPRMB, GPRMC, GPXTE, GPVTG,
GPWPL, GPBOD
Proprietary sentences:
PGRMM (map datum), PGRMZ (altitude), PSLIB
(beacon rec. control)
NMEA 0183 version 2.0
Approved sentences:
GPGGA, GPGLL, GPGSA, GPGSV, GPRMB, GPRMC,
GPRTE, GPWPL, GPBOD
Proprietary sentences:
PGRME(estimated error), PGRMM (map datum),
PGRMZ (altitude), PSLIB (beacon receiver control)
DGPS corrections are accepted on RTCM-104 v. 2.0 format. The
GARMIN GBR 21 is the recommended beacon receiver for use with
the GPS 45XL. Other receivers with the correct RTCM format may be
used, but may not correctly display status or allow tuning control.
Introduction
Preface
59
Appendix C
Specifications,
Wiring,
&Battery
Replacement
(UNIT VIEW)
The GPS 45XL comes with
4 AA alkaline batteries.
After approximately 12
hours of operation in nor-
mal mode or 20 hours of
operation in battery-saver
mode, the batteries will
need to be re p l a c e d .
R e c h a rgeable ni-cad or
lithium batteries may also
be used. Note that the bat-
tery level indicator is cali-
brated for alkaline batter-
ies, and ni-cad or lithium
batteries will only show bat-
t e ry life at partial scale.
To replace batteries:
Remove the battery cover
by turning the thumb loop
at the bottom of the unit 1/4
t u rn counter- c l o c k w i s e .
Remove used batteries and
i n s e r t new batteries into
position. The battery pole
you can still see should
match the symbol marked
on the case. Replace and
secure the battery cover by
turning the thumb loop 1/4
turn clockwise.
GPS 45XL Manual C 8/4/98 3:08 PM Page 59