Pin Number
Wire Function
Relay 1
Relay 2
Relay 3
Relay 4
Relay 5
1
Relay 6 (Aux)
Relay 7 (NMEA 2000)
Shore Power
Wake (unused)
Ignition Wake
Bilge 1
Bilge 2
Security
Battery 1 Pos
Battery 1 Neg
Battery 2 Pos
Battery 2 Neg
Ground (shield)
Temp
NOTICE
All connections should be made using proper electrical connectors. Extra
caution must be made when making watertight electrical connections.
Notes
• Each relay control wire is rated for up to 1 A. External relay switches are
recommended. For higher-current loads, external relay switches are
required. Do not connect these wires to the positive side of a power
source.
• You should install a 1 Amp fuse on all relay controls, Ignition Wake, Bilge
1/2, and Battery 1/2 inputs at the positive input to the power source.
• The Ignition Wake, Bilge 1/2, and Battery 1/2 inputs require a voltage
between 10 and 32 Vdc.
• If the boat's ground is ever intended to be switched off from the power
source, do not directly connect the Ground (black) wire from the IN/OUT
wiring harness to the negative side of the of the GTB 10 black box device's
power source.
Installing the Shore Power Sensor
You can connect the AC shore power sensor to the OnDeck system to be
alerted when the outlet loses power. The shore power sensor also enables the
device to stay on when the boat is connected to shore power.
NOTICE
To avoid damage to the sensor, you must install this sensor in a dry location.
1
Select and install the proper plug type for your AC system.
NOTE: Do not plug in the shore power sensor to the power outlet at this
time.
2
Connect the white wire from the shore power sensor to the white/blue wire
on the IN/OUT wiring harness.
3
Connect the black wire from the shore power sensor to the black wire on
the IN/OUT wiring harness.
4
Plug in the shore power sensor to an AC outlet that is connected to the
boat's shore power connection.
1
This relay is automatically controlled by the GTB 10 black box device to switch power to Garmin
Marine Network devices.
2
This relay is automatically controlled by the GTB 10 black box device to switch power to NMEA
2000 devices.
4
Wire Color
White
White/orange
Gray
Pink
Brown
White/brown
2
Blue
White/blue
Violet
White/violet
White/black
Red/white
White/green
Red
Green
Yellow
Orange
Black
Light green
Installing the Temperature Sensor
1
Connect one wire from the temperature sensor to the light green wire on
the IN/OUT wiring harness.
2
Connect the other wire from the temperature sensor to the black wire on
the IN/OUT wiring harness.
3
Use the ring on the temperature sensor to secure it, as needed.
You must set up the sensor in the ActiveCaptain
Installing the Security Sensor
The two parts of the security sensor should not be more than 10 mm (0.4 in.)
apart when the door or window is closed to engage the magnet.
1
Select a location on the window or door frame and the window or door that
allows the two parts of the sensor to align.
2
Use two screws to mount the wired half of the sensor to the door or
window frame.
3
Use two screws to mount the other half of the sensor to the door or
window, ensuring that the two parts align when the door or window is
closed.
4
Connect one wire from the sensor to the white/green wire on the IN/OUT
wiring harness.
5
Connect the other wire to the black wire on the IN/OUT wiring harness.
You must set up the sensor in the ActiveCaptain app.
Installing a Relay Switch
You can use an external relay switch to turn on and off an item, such as a
light, on your vessel remotely, using the ActiveCaptain app. One 12 V relay is
included. If you need more relays or 24 V relays, they are available separately
for purchase at garmin.com.
NOTICE
To avoid potential damage to the relay switch, GTB 10 black box device, and
device being switched, you must install this relay switch in a dry location.
1
Connect the correctly colored wire on the IN/OUT wiring harness to the
negative control (white) wire on the relay.
See IN/OUT Cable Pinout, page 3.
NOTE: Do not connect these wires to the positive side of a power source.
2
Connect the positive control (black) wire on the relay to a 1 Amp fuse and
the positive side of the same power source as the GTB 10 black box
device.
NOTE: Even though the relay switch and the GTB 10 device have different
power ratings, the inputs must be connected to the same power source.
3
Connect the positive wire from the power cable for the item to be controlled
to the negative load (blue) wire on the relay.
4
Connect the positive load (yellow) wire on the relay to the positive terminal
of the item's power source.
NOTE: The wire used in step 4 should be the same or greater gauge wire
to what was used in step 3.
NOTE: You must follow the output power ratings listed in the specifications
for the relay type being used.
5
Complete the installation of the item to be controlled by connecting the
negative wire from the item to the negative side of the power source.
You must set up the relay switches in the ActiveCaptain app.
Relay Connection Diagram
NOTICE
To avoid potential damage to the relay switch, GTB 10 black box device, and
device being switched, you must install this relay switch in a dry location.
®
app.
Installation Instructions