page 11
Owner’s Manual
GX1270S
2. Connect the red power wire to a 13.8 VDC
±
20% power source.
Connect the black power wire to a negative ground.
3. If an optional remote extension speaker is to be used, refer to
section 4.3 for connections.
4. It is advisable to have a Certified Marine Technician check the
power output and the standing wave ratio of the antenna after
installation.
4.3
ACCESSORY CABLE
4.3.1
Cable pin number and signal
NMEA 0183 Version (1.5 to 2.3 ) Input Sentences:
GLL – Geographic Position–Longitude/Latitude
RMC – Recommended Minimum Specific GNSS Data
NMEA 0183 Version (2.3) Output Sentences:
DSC – Digital Selective Calling Information
DSE – Expanded Digital Selective Calling Information
When connecting the external speaker, GPS navigation receiver, or PA
speaker strip off about 1 inch (2 cm) of the specified wire’s insulation.
NOTE
Never short wires. This may lead to malfunctions.
White: External speaker (+)
Yellow: External speaker (–)
Blue:
NMEA IN (+) from GPS navigation receiver
Green: NMEA IN (–) from GPS navigation receiver
Brown: NMEA OUT (–) to Standard Horizon GPS
#1
Gray:
NMEA OUT (+) to Standard Horizon GPS
#1
To external speaker and GPS receiver
To GX1270S
1
2
3
6
4
5
Pin number
Signal
1
External speaker (+)
2
External speaker (–)
3
NMEA IN (+)
4
NMEA IN (–)
5
NMEA OUT (+)
6
NMEA OUT (–)
#1: Connecting these wires to Standard Horizon GPS to show a DSC Position
Request, Position Send or Distress Call on the display of the GPS.
