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HOMSECUR 7” LCD Waterproof Video Door Phone - Doorbell Camera with Night Vision
SKU VIDEO-DOORPHONE-L09KID-A
Video Door Entry Systems
Door entry is easiest to get right when the cabling question is answered first. This range covers video doorphone kits for houses and small residential blocks, available to trade account holders from UK stock, and the guide below explains how 2-wire and IP compare.
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Choosing a video door entry system, step by step
The first question is the cabling, which in practice means choosing between 2-wire and IP. A 2-wire system carries both power and signal over a single pair between the door station and the monitor, and the reason it dominates retrofits is that it can normally run on the cable the old handset already used, without re-wiring and without a network. An IP system instead runs over Cat5e/Cat6 with PoE, placing the door on the same structured cabling as the rest of the site, which makes it the natural choice for a new build or wherever a data run already reaches the door.
The second question is the number of buttons on the outdoor station, and it deserves care because it cannot be changed later without replacing the panel. As a rule there is one button per dwelling: a one-button station for a house, a two-button station for a pair of converted flats and a four-button station for a small block. Beyond that, a modular station is the better answer, since the call buttons, keypad and card reader become separate modules sharing a common frame.
A modular station is also the way to add access control at the same door. The modules on offer include a numeric keypad module for PIN entry and a keypad module that reads a card as well, alongside an exit-button module and the touch display with a card reader, which all sit in one flush or surface frame; a visitor can then call the flat while a resident lets themselves in with a fob at that same panel. The frame and its surface or flush box should be ordered together with the modules, because the frame, not the module, fixes the number of gangs.
Mounting settles the rest. A flush frame gives the neater finish but needs a back box chased into the wall, which is why most retrofits use the surface box instead, and a station exposed to the weather is best protected by a rain shield. Finally, the indoor monitor’s screen size should suit its position: a 7-inch monitor sits comfortably in a hallway, whereas a 10-inch becomes a feature of the wall.
Frequently asked questions
How does a 2-wire video intercom differ from an IP one?
The difference lies in the cabling. A 2-wire kit sends power and signal along one pair between the door station and the monitor, so in most cases it can reuse the cable left by an old handset. That is why it is the usual retrofit, and why it suits buildings without data cabling. An IP kit runs over Cat5e/Cat6 with PoE as part of the site’s structured network, which suits new installations and any door already reached by a data run.