Security & access

Video entry — your door becomes reception.

A good door station does more than open: it shows visitors at every control point, reaches you wherever you are — and, if you want it to, starts the whole house over KNX.

DoorBird + SiedleBoth systems planned
KNXScenes from the first ring
100+Projects carried out
PoEOne cable to the door
Where we stand

The door station is not an accessory. It is your house's reception.

Part of the house, not another device

A modern door station shows you who is at the door — on the touch panel in the hall, on the screen in the office, by app while you are away. You speak, you open, and you see missed callers in an image log. What sets it apart from a conventional intercom is the integration: the door station is part of the house, not another device with an isolated app of its own.

DoorBird or Siedle — experience rather than gut feeling

We are manufacturer-independent and have planned and carried out both systems on many projects. DoorBird's strengths are its open IP architecture and flexible integration; Siedle's are timeless design and one consistent system that runs through to the letterbox unit. Which one suits you we settle at the sample selection — you see, hear and touch both before you decide.

The doorbell starts the house

In the KNX system a ring at the door becomes an event: the camera image switches onto the nearest touch panel, the light in the hall comes on, the music turns down. At night it only rings where you want it to. If you are out, you answer the door by app — for the visitor, indistinguishable from being at home.

Two ways

An intercom, or a reception concept?

The usual way

A doorbell with an app of its own

A door station out of the catalogue works — but as a single device beside all the others.

  • A separate indoor station on the wall
  • One more isolated app beside the rest
  • Rings everywhere or nowhere
  • No connection to the house
Our standard

Video entry linked into KNX

We plan the door station as one element of the overall concept — from the control panel through to the scene.

  • The door image at every control point
  • The doorbell triggers scenes
  • Remote opening, logged
  • Siedle camera in the 400-year-old manor house
Video entry in detail

A camera on the doorbell is not yet video entry.

The front door decides how assured a house feels — and it is at the front door that most improvising happens. We regularly see cameras mounted at the geometric centre of the entrance panel, filming into the sun in the afternoon and showing nothing but silhouettes in the evening, together with call forwarding that reaches the phone so late that the delivery driver is long since back in the van. Video entry is optical planning, electrical planning and network planning in a single component.

01

Line of sight and mounting height

The camera belongs at the face height of the visitors you can expect, not at the geometric centre of the entrance panel. We fix height, tilt and line of sight on the floor plan: where does somebody actually stand, what does the step in front of it do, where does the frame end? Children, a wheelchair and a delivery driver with a box held against the chest all belong in the same calculation.

02

Wide angle without a fish-eye

A very wide angle of view shows the whole forecourt, but distorts faces at the edge of the frame beyond recognition and pushes the person optically away. We choose focal length and framing by use rather than by data sheet: a recognisable face in the middle, context at the edge, correction of the distortion where the optics allow it.

03

Backlight and night vision

A front door facing south or west produces backlight every afternoon, which weak sensors turn into black silhouettes. We plan orientation, canopy and dynamic range together with the exterior lighting: warm, glare-free fill light across the face rather than a grey infrared makeshift, so that at 11 pm it is still recognisable who is standing down there.

04

Material, surface-mounted, flush-mounted

A door station is a façade detail, not an accessory. Stainless steel, concrete or a timber surround, the joint pattern, the installation depth and the choice between surface-mounted and flush with the wall all belong in the shell construction planning — engraved name plates along with them. At the 400-year-old manor house in Cologne the Siedle station settled into the listed fabric instead of dominating it.

05

Indoor station, panel or app

Three classes of device with different strengths: the indoor station answers immediately and without unlocking, the panel shows the door image and the house in one interface, the app works anywhere. In the period property in Oberkassel the DoorBird runs alongside Occhio lighting and shading in the same operating view — we settle which device actually rings, and where.

06

Call forwarding and latency

A push notification, setting up the connection and the video stream all take time, more over mobile than over Wi-Fi. We plan the forwarding with realistic expectations: a fast preview instead of a sluggish full connection, a sensible ring duration, a clear order between indoor station and phone — and a rule for when a phone may ring at night at all.

07

Door release and motorised lock

Between a simple door release and a self-locking motorised lock lie cable cross-section, power supply, status feedback and a difference you notice every day. We plan the control so that the door locks securely again after opening, its state is visible in the system, and the release does not hang on the same supply as the door station itself.

08

Taking deliveries and the postman

The most frequent event at the door is not greeting a visitor but taking a delivery. At Detlef Steves's house in Moers the DoorBird gives the postman the go-ahead remotely: see, speak, point out where to leave it, without anybody having to be at home. That sequence is planned properly rather than improvised afterwards.

09

The doorbell as an event in the house

A ring at the door is a trigger, not a sound. It raises the exterior lighting to a brightness at which faces can be made out, brings the door image up on the panel and in the visualisation, and sounds in the multiroom system only in the zones where somebody is — and stays silent in the bedroom and the cinema when the night scene is active.

10

Recording when the bell rings

Every ring produces an image and a time stamp, even when nobody answers. We settle beforehand where it is stored, for how long, who has access and how tightly the frame stays within your own property: event storage rather than continuous observation, traceable and with no public pavement in the picture.

11

Access control by code and fingerprint

The station is a point of access control at the same time: numeric codes for the cleaners and for tradesmen, a fingerprint for the family, a transponder as the fallback. We issue permissions with a time limit, log openings so they can be followed up, and define beforehand what happens when a code is compromised or a service provider stops working on the property.

12

Cable routes, PoE and network

Door stations want a network, not bell wire. We plan the route from the technical room to the door with spare capacity, the PoE supply on a suitable switch port, the connection to the uninterruptible supply and a network segment of its own for camera and station — plus a conduit to the gate, because the second station nearly always follows.

Video entry that has been planned means this: you can tell within seconds who is standing there, you decide from wherever you are — and the house responds with you.

What you receive

The elements of your video entry

From the choice of system to the app set up and working — planned, integrated, documented.

01

Choice of system: DoorBird or Siedle

A manufacturer-independent recommendation based on the project, the standard you want and the façade — decided at the sample selection.

02

Cable and PoE planning

A network cable to the door, a flush-mounted housing in the façade or in the letterbox column, power over PoE.

03

Panel integration

The door image on touch panels from Gira, Jung or Basalte — no separate indoor station on the wall.

04

KNX scene logic

The doorbell switches lights, panels and music — cleanly programmed and documented.

05

App and remote access

Live image, two-way speech and door release from wherever you are — handed over set up and working.

06

Installation by elektrofabrik

From the back box in the wall to the app set up and working — all from one group.

How it runs

How your door becomes part of the system

1

Consultation & concept

We settle the situation at the door, the operating concept and how you actually live: who rings, who opens, what should happen in the house? Out of that comes the functional concept for your video entry.

2

Sample selection

You experience DoorBird and Siedle in the flesh: image quality, speech intelligibility, material and design. We give an honest account of what the difference means day to day and in the budget.

3

Planning

A network cable to the door, a flush-mounted housing in the façade or in the letterbox column, power over PoE, integration into the panels and into KNX — documented ready for execution for any specialist contractor.

4

Execution & handover

The installation is carried out by our sister company elektrofabrik — from the back box in the wall to the app set up and working. At handover, the scenes, the panels and the remote access all work.

Bewiesen

Proven on site

01

Manor house Cologne, 400 years old

A listed property: Siedle camera, access control and alarm system all carried out over a wireless system — without touching the character of the house.

02

Detlef Steves, Moers

DoorBird video entry linked with the alarm system, the garage door and the roller shutter automation — all operable from one shared visualisation.

03

Period property Düsseldorf-Oberkassel

A complete electrical installation with a DoorBird door station, shading, Occhio lighting and a smart office — video entry as part of the whole system.

View all projects
Where we work

Video entry in Cologne, Düsseldorf & North Rhine-Westphalia.

smartfabrik is a smart home planning practice based in Düsseldorf (Reisholzer Werftstr. 31A). We plan for private clients and companies in Cologne, Düsseldorf and across North Rhine-Westphalia — and, where wanted, nationwide and internationally. A selection of the places we have already planned and delivered in:

FAQ

Frequently asked questions.

DoorBird or Siedle — which is better?

Both are mature systems with different strengths. DoorBird is IP-based, open to integrations and flexible when something out of the ordinary is needed. Siedle is convincing on design, material quality and a complete system from the door station through to the letterbox unit. At the sample selection we show you both — the decision comes more easily in front of the real device than in front of a data sheet.

Can I get the doorbell on my phone?

Yes. When someone rings, the app comes up with a live image and two-way speech — whether you are in the garden, at the office or away on holiday. You speak to the caller and open the door if you want to. Missed callers appear in an image log with a time stamp. The function runs alongside the touch panels in the house, not instead of them.

Can the door station be connected to KNX?

Yes, that is our standard. The doorbell, the door release and the station's motion detector are available as events in the KNX system. With them you trigger lighting scenes, bring up panels or tie the door release to disarming the alarm system. The door station stops being a single device and becomes one element of the overall concept.

What cabling does a video entry system need?

In a new build we plan a network cable through to the door station — power and data then run together over PoE, and separate power supplies are unnecessary. That is the most robust and most flexible basis. In an existing building, depending on the system, two-wire bell wiring already in place can also be reused. What makes sense in your case we settle at the site survey.

Can I open the front door remotely?

Yes — with a live image and two-way speech first, so that you know who you are opening the door to. Every remote opening is logged. The function becomes genuinely useful in combination with a motorised lock and permissions that have been thought through: the tradesman gets into the house when you release it, the delivery driver only into the garage. Those are exactly the sequences we work through with you.

Part of the living themeSecurity & connectivity
The first step

See both systems at the sample selection.

Arrange an initial conversation — after it you will know which door station suits your house.

Request a consultation