NavLinkz RL4-MBMRT User manual

Version 01.03.2022 HW:CAM(V100)/(V47) RL4-MBMRT
Video inserter
RL4-MBMRT
Compatible with
Mercedes Benz vehicles
with Actros 5 Multimedia Cockpit
and 10.25inch monitor without navigation
Mercedes Benz vehicles
with Actros 5 Multimedia Radio Touch
and 10.25inch monitor without navigation
Video-inserter for front- and rear-view camera
and two more video inputs
Product features
•Video-inserter for factory-infotainment systems
•1 CVBS Input for rear-view camera
•1 CVBS Input for front camera
•2 CVBS Video-inputs for after-market Video sources (e.g. DVD-Player, DVB-T Tuner)
•Automatic switching to rear-view camera input on engagement of the reverse gear
•Automatic front camera switching after reverse gear for 10 seconds
•Video-in-motion (ONLY for connected video-sources)
•Video-inputs NTSC and PAL compatible

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Contents
1. Prior to installation
1.1. Delivery contents
1.2. Checking the compatibility of vehicle and accessories
1.3. Boxes and connectors –video interface
1.4. Settings of the 8 Dip switches (black)
1.4.1. Adjustment –power supply output (dip 1)
1.4.2. Enabling the interface’s video inputs (dip 2-3)
1.4.3. Rear-view camera settings (dip 5)
1.4.4. Activation –front camera back-switching (dip6)
1.4.5. Monitor selection (Dip 8)
1.5. Settings - 6 Dip switches (Top of box–black)
1.6. Settings of the 4 Dip switches (CAN function –red)
2. Installation
2.1. Place of installation and connection
2.2. Connection schema
2.3. Connection –picture signal cable
2.4. Installation with connection to CAN bus or analogue (without CAN bus)
2.4.1. Connection –26pin PNP cable (with CAN-bus)
2.4.2. Connection - 26pin PNP cable (analogue without CAN-bus)
2.4.3. Connection 10pin Power cable (analogue, without CAN-bus)
2.4.3.1. Connection –switching input by 12pin Power cable (with analogue connection
without CAN-Bus)
2.5. After-market rear-view camera
2.6. After-market front camera
2.7. Power supply output
2.8. Connection - video-interface and external keypad
2.9. Connection - video-sources
2.10. Audio insertion
2.11. Picture settings and guide lines
3. Interface operation
4. Specifications
5. FAQ –Trouble Shooting-Interface functions
6. Technical support

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Legal Information
By law, watching moving pictures while driving is prohibited, the driver must not be
distracted. We do not accept any liability for material damage or personal injury resulting,
directly or indirectly, from installation or operation of this product. Apart from using this
product in an unmoved vehicle, it should only be used to display fixed menus or rear-view-
camera video when the vehicle is moving (for example the MP3 menu for DVD upgrades).
Changes/updates of the vehicle’s software can cause malfunctions of the interface. Up to
one year after purchase we offer free software-updates for our interfaces. To receive a free
update, the interface has to be sent in at own cost. Wages for de-and reinstallation and
other expenditures involved with the software-updates will not be refunded.
1. Prior to installation
Read the manual prior to installation. Technical knowledge is necessary for installation. The
video interface’s place of installation must be free of moisture and away from heat sources.
Before the final installation in the vehicle of the video sources, we recommend a test-run
to ensure the compatibility of vehicle and interface. Due to changes in the production of
the vehicle manufacturer there’s always a possibility of incompatibility.
1.1. Delivery contents
Take down the serial number of the interface and store this manual for support
purposes: ____________________

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Requirements
Brand
Compatible vehicles
Infotainment
Mercedes Benz
Actros 5
Multimedia Cockpit without navigation
with 10,25inch monitor
Multimedia Radio Touch without navigation
With 10.25inch monitor
Limitations:
Video only The interface inserts ONLY video signals into the infotainment. For inserting
Audio signals either the possibly existing factory audio-AUX-input or a FM-
modulator can be used. If 2 audio sources shall be connected to the
infotainment, an additional electronic is necessary to switch them.
Factory rear-view camera Automatically switching-back from inserted video to factory rear-view camera is
only possible while the reverse gear is engaged. To delay the switch-back an
additional electronic part is required.
After market front camera The front camera will automatically be switched for 10 seconds after
disengaging the reverse gear. A manually front camera switching is possible by
external keypad.
1.2. Checking the compatibility of vehicle and accessories

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1.3. Boxes and connectors –video interface
The video-interface converts the connected after-market sources video signals into a LVDS
signal which is inserted in the factory monitor using separate trigger options. Further it reads
the vehicle’s digital signals out of the vehicle’s CAN-bus and converts them for the video
interface.
1.4. Settings of the 8 Dip switches (black)
Some settings have to be selected by the dip-switches on the
video interface. Dip position UP = OFF and DOWN = ON.
*The front camera will automatically be switched for 10 seconds after disengaging the
reverse gear.
See the following chapters for detailed information.
Dip
Function
ON (down)
OFF (up)
1
Frontkamera
enabled*
disabled
Power supply output
(red wire)
+12V (max. 3A) when
reverse gear is engaged
incl. 10 seconds delay and
+12V by manual switching
to front camera by keypad
+12V (max. 3A) ACC
2
CVBS Video 1-input
enabled
disabled
3
CVBS Video 2-input
enabled
disabled
4
No function
set to OFF
5
Rear-view cam type
after-market
factory or none
6
*Frontcam
back-switching
for 10 seconds
*enabled
disabled
7
No function
set to OFF
8
Monitor selection
10.25inch monitor

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1.4.1. Adjustment –power supply output (dip 1)
If set to ON, the video interfaces’ red wire will supply +12V (max 3A) with engaging the
reverse gear and additionally 10 more seconds delay for the time of the front camera’s back-
switching after the reverse gear has been disengaged. Furthermore, the red wire’s power
supply for the front cam becomes active with manually front camera switching (short press
of the external keypad).
If set to OFF, the video interfaces’ red wire will supply permanent +12V ACC (max 3A).
Description of the power supply output: see chapter “Power supply output”.
1.4.2. Enabling the interface’s video inputs (dip 2-3)
Only the enabled video inputs can be accessed by switching through the interface’s video
sources. It is recommended to enable only the required inputs. Then the disabled inputs will
be skipped while switching through the video interfaces inputs.
Note: Dip 4 is out of function and has to be set to OFF!
1.4.3. Rear-view camera settings (dip 5)
If set to OFF, the interface switches to factory picture while the reverse gear is engaged to
display factory rear-view camera or factory optical park system picture.
If set to ON, the interface switches to its rear-view camera input while the reverse gear is
engaged.
1.4.4. Activation –front camera back-switching (dip 6)
If set to ON, the interface switches for 10 seconds from the rear-view camera to the front
camera input after having disengaged the reverse gear. In addition, a manual switch-over to
the front camera input is possible via keypad (short press) from any image mode.
(Attend to correct adjustment of the power supply output (dip1)!
1.4.5. Monitor selection (Dip 8)
Dip switch 8 determines the type of monitor.
For the 10.25inch monitor, the dip switch position is OFF.
After each Dip-switch-change a power-reset of the interface box has to be performed!

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1.5. Settings - 6 Dip switches (Top of box–black)
The 6 dip switches at the top of the video interface are
responsible for the according monitor assignment.
Attention: In contrast to both other dip benches (8dip and
4dip),
the 6dip position UP = ON and DOWN = OFF!
Vehicle/Navigation
Dip 1
Dip 2
Dip 3
Dip 4
Dip 5
Dip 6
Actros 5 Multimedia Cockpit
with navigation
OFF
OFF
OFF
OFF
OFF
OFF
After each Dip-switch-change a power-reset of the interface-box has to be performed!
1.6. Settings of the 4 Dip switches (CAN functions –red)
All 4 dip-switches of the video interface have no function for
normal use and have to be set to OFF.
Dip position UP = OFF and DOWN = ON.
Vehicle/Navigation
Dip 1
Dip 2
Dip 3
Dip 4
Actros 5 Multimedia Cockpit
with navigation
OFF
OFF
OFF
OFF
After each Dip-switch-change a power-reset of the interface-box has to be performed!
2. Installation
To install the interface, first switch off the ignition and disconnect the vehicle’s battery.
Please read the owner`s manual of the car, regarding the battery`s disconnection! If
required, enable the car`s Sleep-mode (hibernation mode)
In case the sleep-mode does not succeed, the disconnection of the battery can be done
with a resistor lead. If the necessary stabilized power supply for the interface is not taken
directly from the battery, the chosen connection has to be checked for being constantly
stabile. The interface needs a permanent 12V source!

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2.1. Place of installation
The video interface has to be installed near the MBUX head unit, which is located on the
passenger side above the footwell.

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2.2. Connection schema

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2.3. Connection –picture signal cable
Connect the picture signal cable’s waterblue coloured female double Fakra connector to the
male double Fakra connector of the video interface.
Disconnect the female double Fakra connector at the head unit’s male green coloured
double Fakra connector and connect it to the male waterblue coloured double Fakra
connector of the enclosed picture signal cable.
Connect the picture signal cable’s waterblue coloured female double-Fakra connector to the
head-unit’s previously become free green coloured double-Fakra connector.

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2.4. Installation with connection to CAN bus or analogue (without CAN bus)
Note: The RL4-MBMRT can be integrated via CAN bus as well as operated in analogue mode
without CAN bus.
When integrated via CAN bus by the 26pin PNP cable, the interface is switched on by the
vehicle’s CAN-Bus.
In case of CAN bus incompatibility or to comply with vehicle manufacturer policies, an
analogue connection without using the vehicle’s CAN-BUS is also possible. In this case, via
+12V switch inputs, the interface is switched on
(see “Connection - 26pin PNP cable analogue without CAN-bus”)
or„Connection - 10pin power cable analogue without CAN-Bus“.
2.4.1 Connection - 26pin PNP cable (with CAN-bus)
Connect the enclosed 26pin PNP cable’s female 10pin connector to the
male 10pin connector of the video interface.
Disconnect the female 26pin connector of the factory harness at the rear-side of the head-
unit and connect it to the male 26pin connector of the enclosed 26pin PNP cable.
Connect the opposite female 26pin connector of the enclosed 26pin PNP cable to the
previously become free male 26pin connector of the factory head-unit.

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2.4.2 Connection - 31pin PNP cable (analogue without CAN-bus)
Cut all the blue and grey wires of the enclosed 26-pin PNP cable close to the
10-pin connector and insulate all 8 cable ends.
Connect the enclosed 26pin PNP cable’s female 10pin connector to the male
10pin connector of the video interface.
Disconnect the female 26pin connector of the factory harness at the rear-side of the head-
unit and connect it to the male 26pin connector of the enclosed 26pin PNP cable.
Connect the opposite female 26pin connector of the enclosed 26pin PNP cable to the
previously become free male 26pin connector of the factory head-unit.
Attention: For analogue connection (without CAN bus), the violet wire of the 12-pin
interface cable must also be connected to +12V or +24V ACC accessory power
(see chapter „Connection –switching input by 12pin interface cable (with analogue
connection without CAN-Bus)“.

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2.4.3 Connection - 10pin Power cable (analogue without CAN-bus)
Connect the enclosed 10pin power cable’s female 10pin connector to the male 10pin
connector of the video interface.
Connect the single black wire of the enclosed 10pin Power cable to stabile vehicle’s
negative ground.
Connect the single yellow wire of the enclosed 10pin power cable to +12V permanent
and stabile power supply.
Both single grey coloured and blue coloured wires stay unconnected and have to be
isolated.
Attention: For analogue connection (without CAN bus), the violet wire of the 12-pin
interface cable must also be connected to +12V or +24V ACC accessory power.
(see following chapter).

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2.4.3.1 Connection –switching input by 12pin Power cable (with analogue connection
without CAN-Bus)
Connect the enclosed 12pin interface cable’s female 12pin connector to the male
12pin connector of the video interface.
Connect the purple coloured wire „Manual ACC Input +12V - +24V of the 12pin
interface cable to S-contact terminal 86s e.g. glove compartment illumination
(Connection to ACC Accessory power not sufficient).
Note:
Only as long as the video interface is switched on via +12V by the 10pin connector of
the 26pin PNP cable and via +12V - +24V by the purple wire „Manual ACC Input +12V
- +24V“ of the 12pin interface cable, the MBUX screen is also switched on.
Otherwise, the factory picture is black.
When selecting the switch signal, please check whether the factory picture is
available in all desired operating states.

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2.5. After-market rear-view camera
The red power supply output ACC/front cam out 12V (max 3A) can be used to power the
rear-view camera. If Dip 1 is set to ON (of the black 8 dips), the power supply output supplies
+12V (max 3A) when the reverse gear is engaged and additionally 10 seconds delay after
reverse gear is disengaged.
Connect the 12pin power cable’s female 12-pin connector to the male 12-pin
connector of the video interface.
Connect the revers light power cable to the green switch input cable "Reverse-signal
input +12V - +24V" of the 12-pin interface cable.
Note: To tap the reversing signal, connector X2.52/52 is located near the head unit.
The 24V reverse signal is located on pin52 of this 52-pin connector.
Connect the rear-view camera power cable to the red wire "ACC/front cam out +12V
(max 3 A)" of the 12-pin interface cable.
Connect the negative cable of the reversing camera to the vehicle’s negative Ground.

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2.6. After-market front camera
The red power supply output ACC/front cam out 12V (max 3A) can be used to power a front
camera. If Dip 1 is set to ON (of the black 8 dips), the power supply output supplies +12V
(max 3A) when the reverse gear is engaged and additionally
10 seconds delay after reverse gear is disengaged.
Note: In addition, a manual switch-over to the front camera input is possible via keypad
(short press) from any image mode. The power supply output supplies +12V then, too (if Dip
1 is set to ON and the front camera input is selected).
Connect the rear-view camera power cable to the red wire "ACC/front cam out +12V
(max 3 A)" of the 12-pin interface cable.
Connect the negative cable of the front camera to the vehicle’s negative Ground
ground.

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2.7. Power supply output
The red power supply output ACC/front cam out 12V (max 3A) can alternatively be used to
power an external source and has a different assignment depending on the position of dip
switch 1 (of the black 8 dips):
Dip
Function
Dip 1 ON
+12V (max. 3A) when reverse gear is engaged incl. 10 seconds
delay after reverse gear is disengaged and
+12V by manual switching to front camera by keypad (short
press)
Dip 1 OFF
+12V (max. 3A) simulated ACC

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2.8. Connection - video-interface and external keypad
Connect the female 4pin connector of the keypad to the male 4pin connector of the
12pin interface cable.
Note: Even if switching through several video sources by the keypad mightn’t be required,
for support events the connection and reachable availability is strongly recommended.

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2.9. Connection - video sources
It is possible to connect an after-market rear-view camera, an after-market front camera and
two more video sources to the video-interface.
Before a final installation of the video sources, we recommend a test-run to ensure the
compatibility of vehicle and interface. Due to changes in the production of the vehicle
manufacturer there’s always a possibility of incompatibility.
Connect the 12pin interface cable’s female 12pin connector to the male 12pin connector of
the video-interface.
Connect the video RCA of the Rear-view camera to the 12pin interface cable’s female
RCA connector „Reverse V4.
Connect the front camera’s video RCA connector to the 12pin interface cable’s female
RCA connector „Front V3“.
Connect the video RCA of the AV source 1 and 2 to the 12pin interface cable’s female RCA
connector “Left (V1)”and ”Right (V2)”.

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2.10. Audio-insertion
This interface is only able to insert video signals into the factory infotainment. If an AV-
source is connected, the audio insertion has to be done by the factory audio AUX input or an
FM-modulator. The inserted video-signal can be activated simultaneously to each audio-
mode of the factory infotainment. If 2 AV sources shall be connected to the infotainment,
additional electronic is necessary to switch the audio signals.
2.11. Picture settings and guide lines
The picture settings are adjustable by the 3 push-buttons at the rear-side of the video-
interface. Press the MENU button to open the OSD settings menu or to switch to the next
menu item. Press UP and DOWN to change the selected value. The buttons are placed inside
in the housing to avoid accidental changes during or after the installation. Picture settings
must be done separately for all video inputs while the corresponding input is selected and
visible on the monitor.
Note: The OSD menu is only shown when a working video source is connected to the
selected video-input of the interface.
The following settings are available:
Contrast
Brightness
Saturation
Position H (horizontal picture position)
Position V (vertical picture position)
IR-AV1/2 (no function)
Guide L (no function)
Guide R (no function)
UI-CNTRL (no function)
Size H/V (picture size horizontal/vertical)