10
MT-550
4.4 NMEA Cable
The supplied NMEA data cable plugs into the 8 pin connector on the transceiver’s
rear panel and the other end connects to the NMEA data output/input from your GPS
equipment. Refer to your GPS equipment manual for information about its NMEA
output/input settings and connections.
Wire
Description
Connect to GPS
1. Brown
NMEA Rx(+)
: 4800 bps for GPS input
NMEA Tx(+)
2. Red
NMEA Tx(+)
: 38400 bps for AIS data output
NMEA Rx(+)
3. Orange
NMEA Tx(+)
: 4800 bps for DSC data output
NMEA Rx(+)
4. Shield
GND/NMEA Tx(-), Rx(-)
: Common
GND/NMEA Rx(-), Tx(-)
Pins 2, 3 & 4 reserved for AIS / DSC / PC printer interface
Pins 5-8 reserved for Flash programmer
GPS input
In order for the position reporting features of your transceiver function, operating
GPS equipment must be connected to your transceiver. Your transceiver adapts
for the $GPGLL/GGA/RMC/GNS NMEA data sentence at 4800 bps.
DSC data output
Your transceiver has the capability to transfer the received DSC data to a connected
GPS chart plotter at 4800 bps. In order for this feature to function, your GPS chart
plotter must be DSC capable and have a NMEA Input at 4800 bps.
AIS data output
Your transceiver has the capability to transfer the received AIS data to a connected
GPS chart plotter at 38400 bps. In order for this feature to function, your GPS
chart plotter must be AIS capable and have a NMEA Input at 38400 bps.
4.5 External Speaker Connection
Provision for connecting and external speaker is provided on the rear panel. Use an
8 Ohm speaker rated for at least 3 Watts and suitable for the environment at the
chosen location.
3.5 mm Phone plug
Tip Audio
Out(+)
Body Audio
Out(-)
4.6 Antenna Connector
The transceiver is fitted with a type SO 239 female connector which mates with a PL
259 male connector supplied with VHF marine antennas.
