2N® Helios
color video camera kit
Order No. 9135200E
The 2N® Helios color video camera kit contains all necessary items for additional
upgrade of your door communicator. It contains an electronic camera module, movable
hinge and the connection cable for the camera and the communicator’s main board. The
video camera is adjustable both vertically and horizontally due to the movable hinge
system. In order to configure the camera use the appropriate connectors (jumpers)
provided in the kit.
The video camera shares the power supply with the back light. Before installation make
sure that the parameters of the back light power supply comply with the requirement of
the video camera (see “Technical Parameters” section in the manual). The suitable power
supply is 12V/2A stabilized. It is possible to order this power supply by using order number
In no case use unstabilized or AC power supply (mains transformer)!
1. Remove metal cover from the door phone.
Remove plastic cover from the base by
unscrewing the screws (4x) located at the
2. Remove the black camera cover and replace
it with the clear cover from the “video kit”.
3. Remove the loudspeaker cradle from the
base by lifting out the pins and pushing the
cradle slightly forward.
4. Assemble the movable hinge and screw (2x)
it to the base. Place the video camera on the
top of the hinge and use provided screws
(2x) to secure (see the figure below).
5. Connect the camera with the main board using the provided cable.
6. Select the camera mode
and video cable type via
jumpers. In the "Video
on during call“ mode, the
output is active when a
to/from Helios. When the
call is terminated, the
video remains active for
about 7 seconds and
then switches off. Select
the "Permanently on"
installations to avoid camera damage by air humidity. It is because the camera
is heated during operation and thus no moisture condensation can occur.
7. Connect a video cable to the Video Output terminals
on the main board. If you use a twisted pair instead
of coax cable, it is not relevant which conductor
leads to which terminal but you are advised to
record the arrangement (+ / - mark, conductor
color). You will use this information while installing
the LCD monitor or video server on the other cable
end. If you use a coax cable, connect its live wire to
the + terminal and the shield to the - terminal. If you use a UTP cable, connect the
video signal to such two conductors that are twisted together (making a twisted
pair), never use two arbitrary conductors. By connecting or disconnecting the jumper
set the impedance match of the video output for the coax cable or twisted pair.
8. Adjust the camera to desired viewing angle.
9. Insert cradle with the speaker back into the main board. Make sure that the cradle
fits properly in the appropriate holes.
10. Reassemble the door phone by mounting the plastic cover to the base and secure
with screws (4x) as well as placing back the metal cover.
Technical Parameters
Supply voltage
Current consumption
Video modes
Video output
Video output matching
Function in darkness
stabilised 12 – 13Vdc, common supply to camera and button backlight
permanently on / on during call / permanently off
colour composite PAL video signal, 1Vpp
75 coaxial cable / twisted pair of UTP category 5 or higher
420 TV rows
3 lux
black&white mode, illumination by white and infrared LEDs under name
Camera turning option horizontally and vertically in the range of ± 8º
Camera chip
colour, 1/4" CCD, automatic transition to black&white mode at dark
Camera objective
pinhole type, f = 3.7mm
Camera angle of view 60º diagonally
Max. cable length
 2011, 2N TELEKOMUNIKACE a.s. - Praha
OV1701 v2.0
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