r.LiNK RL4-C3D User manual

Version 06.10.2020 HW:CAM (V100)/(V42) RL4-C3D
r.LiNK Video inserter
RL4-C3D
Compatible with
Alfa Romeo vehicles
with Connect Radio and 6.5 inch monitor
or Connect 3D navigation and 8.8 inch monitor
Video-inserter for one rear-view camera, one front camera
and two additional video sources
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. USB-Player, DVB-T2
Tuner)
•Automatic switching to rear-view camera input on engagement of the reverse gear
•Automatic front camera switching after reverse gear for 10 seconds
•Activatable parking guide lines for rear-view camera (not available for all vehicles)
•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. Activating the front camera input (dip 1)
1.4.2. Enabling the interface’s video inputs (dip 2-3)
1.4.3. Activation of the factory PDC display (Dip 4)
1.4.4. Rear-view camera setting (dip 5)
1.4.5. Activating the guide lines (dip6)
1.4.6. Monitor selection (Dip 7 and8)
1.5. Settings of the 4 Dip switches (CAN function –red)
2. Installation
2.1. Place of installation
2.2. Connection schema
2.3. Connection - factory head unit and monitor
2.3.1. Connection - the picture signal cable –
2.3.2. Connection - Quadlock - CAN
2.4. Analog power supply for the video interface
2.5. Power supply output
2.6. Connection - video-sources
2.6.1. Audio insertion
2.6.2. After-market front camera
2.6.3. After-market rear-view camera
2.6.3.1. Case 1: Interface receives the reverse gear signal
2.6.3.2. Case 2Interface does not receive the reverse gear signal
2.7. Connecting - video-interface and external keypad
2.8. Picture settings and guide lines
3. Interface operation
3.1. By factory infotainment button
3.2. By keypad
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
Hersteller
Kompatible Fahrzeugmodelle
Navisystem
Alfa Romeo
Giulia (952) ab Modelljahr 2016
Stelvio (949) ab Modelljahr 2017
Connect Radio mit 6.5 Zoll Monitor und
Connect 3D Navigation mit 8.8 Zoll 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.
PDC and guidelines If the video interface does not receive the required information from
the vehicle CAN-bus, neither guide-lines nor optical PDC display will be
supported.
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 video signals of connected after-market sources in a factory
monitor compatible picture signal which is inserted in the factory monitor, by 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 of the
video interface.
Dip position down is ON and position up is OFF.
*The front camera will automatically be switched for 10 seconds after disengaging the
reverse gear.
After each Dip-switch-change a power-reset of the Can-box has to be performed!
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
PDC
enabled
disabled
5
Rear-view cam type
after-market
factory or none
6
Guide lines
enabled
disabled
7
Monitor-specific
adjustments
Try all possible combinations of dip 7 and-8 to find the
best picture (quality and size)
8

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1.4.1. Activating the front camera input (dip 1)
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.
Description of the front camera power supply: see chapter “Power supply output”.
1.4.2. Enabling the interface’s video inputs (dip 2-3)
Only by dip switches enabled video inputs can be accessed by switching through the
interface’s video sources. It is recommended to enable only the required inputs. Disabled
inputs will be skipped while switching through the video interfaces inputs.
1.4.3. Activation of the factory PDC display (Dip 4)
Dip 4 is used to display the factory PDC (if available) as „picture in picture“ in combination
with the camera image.
1.4.4. Rear-view camera setting (dip5)
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.
1.4.5. Activating the guide lines (dip6)
If set to ON, the guide-lines will be shown on the display.
If set to OFF, the guide lines won’t be visible on the display.
Note: If there is no communication between interface and the vehicle`s CAN-bus (several
vehicles aren’t compatible), the reverse gear guide-lines can`t be shown during the vehicle’s
operation, even if they once appear after having switched the system to powerless!
1.4.6. Monitor selection (dip7 and 8)
Dips 7-8 customize the monitor-specific video settings which cannot be predicted as even
within the same head-unit version, the monitor specifications may vary. It is necessary to try
all possible combinations - while a working video source is connected to the chosen input of
the interface - to see which combination gives the best picture quality and size (some may
give no picture). It is possible to first hot plug through the dip combinations, but if you do
not experience any change of picture after trying all options, retry and disconnected the 6pin
power plug of the video-box between every change of the dip setting.

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1.5. Settings of the 4 Dip switches (CAN functions –red)
Dip position down is ON and position up is OFF.
Fahrzeug/Navigation
Dip 1
Dip 2
Dip 3
Dip 4
Alfa Romeo vehicles
ON
ON
ON
OFF
If, with dip switch-1 setting „ON“ the source switching by infotainment button doesn‘t
succeed and further the external keypad doesn’t work either, the dip switch setting of dip-
1 has to be changed to „OFF“.
After each Dip-switch-change a power-reset of the Can-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!
Before a final installation, we recommend a test-run to ensure the compatibility of the
vehicle and the interface. Due to changes in the production of the vehicle manufacturer
there’s always a possibility of incompatibility.
2.1. Place of installation
The interface is supposed to be installed at a suitable location behind the vehicle`s head-
unit.

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2.2. Connection schema

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2.3. Connections to factory head-unit and monitor
Remove the factory head unit and monitor
2.3.1. Connection to the picture signal cable
Disconnect the factory picture signal cable’s purple coloured female HSD+2 connector at the
rear-side of the head unit and connect it to the waterblue coloured HSD+2 connector
“TO LCD“.of the video interface .
Connect the not-angled purple coloured female HSD+2 connector of the enclosed picture
signal cable to the previously become free waterblue coloured male HSD+2 connector of the
factory head-unit.
Connect the opposite angled female purple coloured HSD+2 connector of the picture signal
cable to the waterblue coloured male HSD+2 connector ”HU IN”of the video interface.
Note: The colours of the HSD connectors at monitor and head unit may vary.
The picture signal cable’s connecting direction doesn’t have an impact on the system’s
function, for that the angled and not-angled HSD connectors are allowed to be interchanged,
depending on the HSD connectors mounting space at the monitor.
However, mixing up/interchanging the connections of „HU IN“ and „TO LCD“ may cause
dysfunktion or even damage to the system!

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2.3.2. Connection to Quadlock - CAN
Connect the female 10pin connector of the 10pin Power / CAN cable to the 10pin connector
of the video interface.
Remove the female Quadlock connector of the vehicle harness from the rear-side of the
head-unit and connect it to the male Quadlock connector of the Power / CAN cable.
Connect the opposite female Quadlock connector of the Power / CAN cable to the previously
become free male Quadlock connector at the rear-side of the head unit.
After the connections of the video interface have been done, carry out the following
technical checks:

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2.4. Analog power supply for the video interface
If, after connecting the PNP harness, no interface LED lightens up while the ignition is turned
on, the purple coloured wire Manual ACC of the 12pin interface cable has to be connected
additionally to S-contact terminal 86s +12V (e.g. glove compartment illumination).

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

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2.6. 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 female 12pin connector of the 12pin interface cable to the male 12pin
connector of the video-interface.
Connect the video RCA of the Rear-view camera to the female RCA connector “Reverse (V4)“
of the 12pin interface cable.
(refer also to chapter “after-market rear-view camera”).
Connect the video RCA of the front camera to the female RCA connector “Front (V3)“ of the
12pin interface cable.
(refer also to chapter “After-market front camera”).
Connect the video RCA of the video source 1 and 2 to the female RCA connector „Left (V1)“
and „Right (V2)“ of the 12pin interface cable.

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2.6.1. 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.
2.6.2. 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 (black 8 dips), the power supply output gives +12V (max 3A)
when reverse gear is engaged plus 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 gives +12V then, as well (if Dip
1 is set to ON and the front camera input is selected).
Attention: A long press of the external keypad push button will switch the interface to the
next source.

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2.6.3. After-market rear-view camera
Some vehicles have a different reverse gear code on the CAN-bus which the video-interface
is not compatible with. Therefore, there are two different ways of installation. If the video
interface receives a signal of the reverse gear, the green wire “Reverse-OUT” of the 20pin
cable should carry +12V while the reverse gear is engaged.
Note: Do not forget to set video interface’s dip5 to ON before testing.
2.6.3.1. Case 1: Interface receives the reverse gear signal
If the interface delivers +12V on the green output wire of the 12pin interface cable while
reverse gear is engaged, the video interface will automatically switch to the rear-view
camera input “Camera IN” while the reverse gear is engaged.
Additionally, the +12V (max. 3A) power supply for the rear-view camera can be taken
from the green wire of the 12pin interface cable.

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2.6.3.2. Case 2: CAN-box does not receive the reverse gear signal
If the video interface does not deliver +12V on the green wire of the 12pin cable when
reverse gear is engaged (not all vehicles are compatible), an external switching signal from
the reverse gear light is required. As the reverse gear light’s power supply isn’t voltage-
stabile all the time, an ordinary open relay (e.g AC-RW-1230 with wiring AC-RS5) or filter
(e.g. AC-PNF-RVC) is required. The diagram below shows the connection type of the relay.
Disconnect the green cable’s preconnected male- and female connectors of the 12pin
interface cable and connect the green input cable “Reverse-IN” to the output
connector (87) of the relay.
Note: Last but not lot least to avoid short circuits, the best solution should be, to
crimp a male 4mm connector to the relay’s output cable and connect it to the green
cable’s female 4mm connector. The output-cable “Reverse-OUT” remains
disconnected as it’s out of function.
Connect the Reverse light’s power-cable to coil (85) and the vehicle’s ground to coil
(86) of the relay.
Connect the output connector (87) of the relay to the rear-view camera’s power-
cable, like you did it to the green “Reverse-IN” cable before.
Connect stabile and permanent +12V to the relay’s input connector (30).

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2.7. Connecting 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,
the invisible connection and availability is strongly recommended.

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2.8. 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 AV1, AV2 and CAM 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)
Position V (vertical)
Guide L/R (adjustments for Guide lines)
Size H/V (picture size horizontal/vertical)
Note:
To adjust the reverse picture, engage the reverse gear.
To adjust the guide lines, move the steering wheel to see the changes.
If there is no communication between interface and the vehicle`s CAN-bus (several vehicles
aren’t compatible), the reverse gear guide-lines can`t be shown during the vehicle’s
operation, even if they once appear after having switched the system to powerless!

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3. Interface operation
3.1. By factory infotainment button
To switch the interface’s activated video sources; the factory infotainment buttons can be
used.
Press the according infotainment button to switch the input from the factory video to the
inserted video sources. If all inputs are activated by dip switch settings, the order is the
following:
Factory video → Video IN 1 → Video IN 2 → factory video
Each press will switch to the next enabled input. Inputs which are not enabled will be
skipped.
Switchover by vehicle buttons isn’t possible in all vehicles. In some vehicles the external
keypad has to be used.

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3.2. By keypad
Alternatively or additionally to the factory infotainment buttons, the interface’s external
keypad can be used to switch the enabled inputs. Even if not needed, the keypad should
always remain connected to the video interface for support purposes.
➢Long press of keypad (2-3 seconds)
Alternatively or additionally to the steering wheel’s CALL OFF button, the interface’s enabled
inputs can also be switched by the external keypad.
By long pressing the external keypad (2-3 seconds), the video interfaces witches the input
from the factory video to the inserted video sources. If all inputs are activated by dip switch
settings, the order is the following:
Factory video → Left (V1) → Right (V2) → factory video
Each long press will switch to the next enabled input. Inputs which are not enabled will be
skipped.
Note: The interface switches after releasing the switch (after long pressure).
➢Short press of keypad (only if DIP 1 is set to ON)
By short pressing the external keypad, the video interfaces witches from the factory video to
the front camera input and back to factory video.
If, with dip switch-1 setting „ON“ (red 4dip), the source switching by infotainment button
doesn‘t succeed and further the external keypad doesn’t work either, the dip switch
setting of dip-1 has to be changed to „OFF“.
4. Specifications
BATT/ACC range 7V - 25V
Stand-by power drain 8mA
Power 330mA @12V
Video input 0.7V - 1V
Video input formats NTSC/PAL
Temperature range -40°C to +85°C
Dimensions video-box 117 x 25 x 104 mm (W x H x D)