Lowrance electronic GlobalMap 4800M - Manual (Page 22)

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See the following diagram for general wiring connections. Read your
other product’s owner’s manual for more wiring information.
NMEA/DGPS Wiring
(Data cable)
To exchange NMEA 0183 or DGPS data, the GlobalMap 4800M has one
NMEA 0183 version 2.0 communication port. Com port one (Com-1) can
be used to receive NMEA format GPS data or DGPS data. The com port
can also transmit NMEA format GPS data to another device.
The four wires for the com port are combined with the Power Supply
cable and NMEA-2000 Power cable to form the power/data cable
(shown earlier). Com-1 uses the yellow wire to transmit, the orange
wire to receive and the shield wire for signal ground. Your unit does not
use the blue wire.
Com-1 wiring to receive DGPS position information
from a DGPS receiver.
Com-1 wiring to receive NMEA position information
from some other GPS receiver.
Com-1 wiring to transmit NMEA position information
to another NMEA-compatible device.
Mounting the Unit: Bracket, In-Dash or Portable
You can install the GlobalMap 4800 on the top of a dash with the sup-
plied gimbal bracket. It can also be installed in the dash or mounted on
a portable power supply.
Ground
To Other
Device
Com-1 To
GlobalMap 4800
Yellow (Transmit) NMEA Receive
Shield (Ground)
Orange (Receive) NMEA Transmit
Shield (Ground) Ground
Com-1 To
GlobalMap 4800
To Other
GPS Receiver
Orange (Receive)
Shield (Ground)
Transmit
Ground
To DGPS
Receiver
Yellow (Transmit) NMEA Receive
Com-1 To
GlobalMap 4800