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To ensure that the connection is correct, we recommend testing 

the system before it is put into service. There are three simple 

steps as described below:

After proper installation, pair the xFOB and the xHUB as 

described below. The xHUB remembers the 20 last paired 

xFOBs. Pairing saves the ID of xFOBs in the memory of the 

xHUB. Pairing is only done the first time you use an xFOB with 

an xHUB. Remember, only one xFOB can be connected to an 

xHUB at the time acting as a kill switch.

Pairing is only necessary the first time you use 

your MOB+™. Press and hold the button on your 

xHUB™.

HOLD 3 SEC

Click the button on your xFOB to connect.

CONNECT

Start your engine.

START ENGINE

Now you can try and stop your engine in two 

separate ways.

Both described methods are equal in terms of 

testing stop functionality.

TEST THE MOB+

Immediately after releasing the button on the 

xHUB™, press and hold the button on your 

xFOB™.

HOLD 3 SEC

Click the button on your xFOB to connect.

CONNECT

2

3

Click the xFOB to stop the engine

-The system will now shut down the engine and disconnect the wireless system.

DISCONNECT

Submerge the xFOB in the sea or the ocean more than 4 inches.

-The system will now go into ManOverBoard mode and shut down the engine. 

After 6 seconds the xHUB will go into override mode. Press the xHUB or xFOB 

to disconnect the wireless system.

SUBMERSION

1
2

A bucket of water 

is not sufficient to 

test the functionality 

of MOB+. Test the 

system in the sea or 

ocean/lake.

Release the button when the xHUB™ starts 

flashing blue and gives a sound signal indicating 

Pairing Mode.

BLUE LIGHT

The xHUB™ will give a sound signal and a green 

light to indicate a successfull pairing.

GREEN LIGHT

The xHUB™ will give a sound signal and a green 

light to indicate a successful connection.

CONNECTED

PAIRING

VERIFY INSTALLATION

EMC GUIDELINES

DRILLING THE HOLE

SUPPORT

IMPORTANT

We recommend that the installation of the 

MOB+ in your boat is performed by skilled 

personnel familiar with electric wiring, or by 

a professional mechanic or electrician. This 

is to prevent any malfunction of the device 

related to installation.

!

INSTALLING MOB+ IN A METAL BOAT

xFOB BATTERY

If your helm is made out of conducting materials the wireless signals from 

MOB+ may be degraded. The amount of signal degradation experienced 

may vary from across boats and must be tested for each case. If the signal 

is very poor you can install a separate external antenna outside of your 

helm to increase the signal strength. Please contact FELL support at www.

fellmarine.com/support for more information.

xHUB battery symbol displays the battery status 

of the connected xFOB. Each bar respectively 

indicates 10 %, 40 %, 70 % and 100 % of battery 

life. xFOB battery life: 300h active use. Change the 

battery within 15 hours when the last bar blinks on 

the battery indicator. 

FELL recommends using Panasonic or Sony 

CR2032 coin cell batteries.

The installation is simple and below you will find a 

quick guide. See next page for wiring instructions.

For more information, visit our website 

www.fellmarine.com/support

YOUR ENGINE

Visit:  

www.fellmarine.com/support 

to find wire diagram for your 

engine.

Connect the signal wires to the 

existing kill switch wires and the 

power wires to power.

YOUR ENGINE

Drill a 2-1/16” / 52mm hole in a 

suitable place adjacent to the 

drivers position.

2-1/16” / 52MM HOLE

Insert the xHUB™ to the pre-

drilled hole and tighten the nut.

MOUNT xHUB

Connect the cables and the 

antenna to the xHUB™.

CABLE & ANTENNA

!

Place the xHUB with the 

antenna at least  

~ 10” / 30cm from other 

electronics equipment 

transmitting EMI. The 

antenna should be in as free 

space as possible, but where 

necesssary it can be bent up 

to 45 degrees.

1

INSTALLATION

IF YOU HAVE MULTIPLE ENGINES: SEE BELOW

RECONNECT AND RESTART THE ENGINE BEFORE TESTING SUBMERSION

The guidelines given here describe the conditions for optimum EMC 

performance, but it is recognized that it may not be possible to meet all of 

these conditions in all situations. To ensure the best possible conditions 

for EMC performance within the constraints imposed by any location, 

always ensure the maximum separation possible between different items 

of electrical equipment.

For optimum EMC performance, it is recommended that wherever 

possible: 

FELL equipment and the cables connected to it are:

• 

At least 3 ft (1 m) from any equipment transmitting or cables 

carrying radio signals e.g. VHF radios, cables and antennas. 

In the case of SSB radios, the distance should be increased 

to 7 ft (2 m). 

• 

More than 7 ft (2 m) from the path of a radar beam. A radar 

beam can normally be assumed to spread 20 degrees above 

and below the radiating element. 

• 

If possible the product is supplied from a separate battery 

from that used for engine start. Power supply voltages 

below the minimum specified 7V power source, and starter 

motor transients, can cause the product to reset. This will 

not damage the product, but may cause inability to start the 

engine. 

• 

FELL specified cables are used. Cutting and rejoining these 

cables can compromise EMC performance and must be 

avoided unless doing so is detailed in the installation manual.

GENER

AL USE AND INST

ALLA

TION SE

CTION

The xHUB measures  

Ø=51,5mm / 2.03 in

Drill a 52mm / 2-1/16” hole

Be sure not to drill through any existing 

cables or equipment mounted or situated 

on the backside of your intended xHUB 

position!

On www.fellmarine.com/videos you will find 

installation and user guide videos.

WATCH VIDEOS!

Please feel free to contact us with any inquiry.

WE ARE HERE TO HELP YOU

Customer care:

Business hours:

Email:

Web support:

Social Media:

Web:

www.fellmarine.com/customer-care

Monday-Friday 08:00am – 04:00 pm

support@fellmarine.com

https://www.fellmarine.com/support/

facebook.com/fellmarine

https://www.fellmarine.com

 

10%

40%

70%

100%

Battery Life:

300h Active Use

The xHUB™ will give a sound signal and 

a GREEN light to indicate a successful 

connection.

MOBP17010

MOBP17011

MOBP17012

MOBP17013

MOBP17014

MOBP17015

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