GX1280SPage 12
radio. RG58 cable can be used for distances less than 25 feet.
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
3.3 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
White: External speaker (+)
Shield: External speaker (–)
Blue: NMEA IN (+) from GPS navigation receiver
Green: NMEA IN (–) from GPS navigation receiver
Gray: NMEA OUT (+) to GPS navigation receiver
Brown: Test port (for the Service Technician)
When connecting the external speaker or GPS navigation receiver, strip off
about 1 inch (2.5 cm) of the specified wire’s insulation, then splice the ends
together.
Wire Color/Description
WHITE - External Speaker (+)
SHILED - External Speaker (–)
GREEN - NMEA Ground
BLUE- NMEA Input (+)
GRAY-NMEA Output (+)
Connection Examples
Connect to external 4 Ohm audio speaker
Connect to external 4 Ohm audio speaker
Connect to NMEA (–) connection of GPS
Connect to NMEA (+) output of GPS
Connect to NMEA (+) input of GPS
External Speaker
Green
Gray
Blue
Shield
White
Brown
Green
Blue
16/9
WX
SCAN
H/L CALL
SET SQL
VOL/PWR
DISTRESS
ICMEM
U.I.C
MENU
PULL OPEN
NAV
DW
MATRIX