Power/Data Cable Wiring
The following pages contain several wiring diagrams. The first diagram on the next page is a simple diagram showing the GPSMAP 3005C
MFD using the 18-pin Power/Data wiring harness and the GPS 17. If two or more GPSMAP 3005C/3006C/3010C units are installed and
networked, only one GPS 17 antenna needs to be installed. Next are wiring diagram examples showing the GPSMAP 3005C using the 18-pin
Power/Data wiring harness interfacing with a variety of different equipment. Refer to the wiring diagram that best suits your needs. For third-
party devices, be sure to refer to the wiring guidelines included with that equipment. Use 22 AWG (18 AWG for the Red and Black wires),
shielded, twisted-pair wiring for extended runs of wire. Solder all connections and seal the connection with heat shrink tubing. If networking
two or more MFDs, NMEA devices only need to be attached to one MFD on the network. A pinout of the cable is shown below.
Power/Data Cable Input/Output Ports
The GPSMAP 3005C Power/Data cable has three I/O (Input/Output) ports.
Port 1 —communicates with other NMEA-compliant devices, such as VHF radios, NMEA instruments, autopilots, PCs, or Garmin Sounder
Modules. You can input one NMEA device to each port, and output in parallel to three NMEA devices per port.
Port 2—is reserved for use with Garmin Sounder Modules or NMEA devices.
Port 3—is reserved for use with the Garmin GPS 17 GPS/WAAS antenna.
The following formats are supported for connection of external devices: Garmin proprietary Sonar Module and NMEA 0183 version 3.01. The
following are the sentences for NMEA 0183, version 3.01 and later output:
Approved Sentences—GPBWC, GPRMC, GPGGA, GPGSA, GPGSV, GPGLL, GPBOD, GPRMB, GPRTE, GPVTG, GPWPL, and GPXTE.
Garmin Proprietary Sentences—PGRME, PGRMM, and PGRMZ.
The unit also includes NMEA input with support for the WPL sentence, DSC, and sonar NMEA input with support for the DPT, MTW, VHW,
HDG, and HDM sentences. The unit interface must be set to NMEA In/NMEA Out.
Documentation concerning NMEA & RTCM formats
and sentences are available for purchase from:
National Marine Electronics Association (NMEA)
Seven Riggs Avenue
Severna Park, MD 21146
U.S.A.
www.nmea.org
GPSMAP 3005C & GPS 17
Power/Data (NMEA) Cable
PIN #
COLOR
1
N/C
2
N/C
3
N/C
4
WHITE/BROWN
5
WHITE/BLUE
6
ORANGE
7
N/C
8
N/C
9
N/C
10
N/C
11
YELLOW
12
N/C
13
WHITE
14
GREEN
15
RED
16
BROWN
17
BLUE
18
BLACK
I
NSTALLATION
1
2
6
5
4
3
7
11
10
9
8
15
14
13
12
18
17
16
Cable End View
FUNCTION
PORT 2 DATA IN
PORT 2 DATA OUT
ACCESSORY ON
ALARM LOW
PORT 3 DATA IN
PORT 3 DATA OUT
DC POWER INPUT
PORT 1 DATA IN
PORT 1 DATA OUT
GROUND (POWER/DATA)
I
NSTRUCTIONS
7