Garmin International Inc 02047 User Manual

• You can connect the radio to a GPS source through the NMEA 2000

network or through an external GPS antenna (not included).

Connecting the Wiring Harness to Power

Route the wiring harness to the power source and to the device.

Connect the red wire to the positive (+) battery terminal, and connect the

black wire to the negative (-) battery terminal.

Additional Grounding Considerations

This device should not need any additional chassis grounding in most

installation situations. If interference is experienced, the grounding screw on

the housing can be used to connect the device to the water ground of the boat

to help avoid the interference.

Connecting a VHF Antenna

Mount the VHF antenna (sold separately) according to the installation

instructions provided with the antenna.

Connect the VHF antenna to the ANT port on the back of the device.

Connecting the Active Speaker to the VHF Radio and Handset

Before you connect the active speaker to the VHF radio and handset, you

should mount the active speaker (Active Speaker Mounting Considerations,

page 2).

Route the female end of the included extension cable from the speaker

mounting location to the VHF radio.

Connect the extension cable to the GHS 11 STATION 1 port on the VHF

radio.

Connect the male end of the extension cable to the short cable from the

active speaker.

Route the long cable from the active speaker to the handset connector

mounting location.

If necessary, install the cable from the active speaker in the mounting

surface (Installing the Handset Connector in the Mounting Surface,

page 3).

Connect the handset to the long cable from the active speaker.

Connecting the Handset to the VHF Radio Using an Extension

Cable

If you install an active speaker with the handset, the handset connects to the

radio through the active speaker (Connecting the Active Speaker to the VHF

Radio and Handset, page 4).

Route the female end of the included extension cable from the handset

mounting location to the VHF radio.

Connect the extension cable to the GHS 11 STATION 1 port on the VHF

radio.

If necessary, install the handset connector on the extension cable in the

mounting surface (Installing the Handset Connector in the Mounting

Surface, page 3).

Connect the handset to the extension cable.

NMEA 2000 Device Connections

NOTICE

If you are connecting this device to an existing NMEA 2000 network, the

NMEA 2000 network should already be connected to power. Do not connect

the NMEA 2000 power cable to an existing NMEA 2000 network, because only

one power source should be connected to a NMEA 2000 network.
If you are connecting this device to an existing NMEA 2000 network or engine

network by another manufacturer, you should install a NMEA 2000 Power

Isolator (010-11580-00) between the existing network and the Garmin devices.
If you are installing a NMEA 2000 power cable, you must connect it to the boat

ignition switch or through another in-line switch. NMEA 2000 devices will drain

your battery if the NMEA 2000 power cable is connected to the battery directly.

To connect this device to your existing NMEA 2000 network, you must

purchase a NMEA 2000 cable and connector.
If you are unfamiliar with NMEA 2000, you should read the “NMEA 2000

Network Fundamentals” chapter of the Technical Reference for NMEA 2000

Products. Go to www.garmin.com/manuals/VHF315/.

Item

Description

Compatible NMEA 2000 chartplotter or other device

VHF 315 device

Ignition or in-line switch

NMEA 2000 power cable

NMEA 2000 drop cable

12 Vdc power source

NMEA 2000 terminator or backbone cable

NMEA 2000 T-connector

NMEA 2000 terminator or backbone cable

Connecting the Device to a Remote GPS Antenna

This device must receive GPS information for proper functionality. You can

connect the device to a NMEA 2000 network with a GPS antenna, or you can

install a remote GPS antenna (not included) and connect it to the device.

Follow the instructions provided with your external GPS antenna to install it

on your boat correctly.

Route the antenna cable to the back of your device, away from sources of

electrical interference.

Connect the antenna cable to the GPS port on your device.

Connecting to a Hailer Horn or PA Speaker

You can connect the VHF radio to a hailer horn or public address (PA) speaker

(not included) to use a handset to make announcements.

If necessary, mount the hailer horn or PA speaker according to the

installation instructions provided with the device.
NOTE: To avoid feedback, you should mount the hailer horn or PA

speaker at least 3 m (10 ft.) away from, and facing away from, a handset.

Route or extend the wire from the hailer horn or PA speaker to the radio.

Connect the white wire on the radio wiring harness to the positive (+) wire

from the hailer horn or PA speaker.

Connect the green wire on the radio wiring harness to the negative (-) wire

from the hailer horn or PA speaker.

Cover the connections with waterproof tape or heat-shrink tubing.

NMEA

0183 Device Connections

This diagram illustrates two-way connections for both sending and receiving

data. You can also use this diagram for one-way communication. To receive

information from a NMEA 0183 device, refer to items

, and

when connecting the Garmin device. To transmit information to a NMEA 0183

device, refer to items

, and

when connecting the Garmin

device.

Installation Instructions