CDVI 2EASY 2-Wire Video Door Station, 4 Button, Proximity Reader, 170° Camera CDV-974ID

What this door station is for

A door station is the panel at the entrance: visitors press a button, and the matching indoor monitor rings. This CDVI panel serves a small block, one of many door stations and monitors for building a door entry system.

It combines two jobs in one housing. It handles video calls to four homes, and its reader lets residents present a credential at the same panel.

How it works

• 2-wire bus: the system runs over two conductors with no polarity, so a swapped pair is not a fault at this panel.
• Fisheye camera: a very wide lens that takes in a lot of the entrance in one picture. Digital pan, tilt and zoom then pick out part of that image.
• Proximity reader: a credential is held near the panel rather than inserted. It can run internally via the internal lock relay, or externally through the CDV-ACCS BUS/Wiegand interface.
• Wiegand: a common wiring format between a reader and an access control panel, and the route for a standard wiegand reader input port.

Where to use it

It is rated IP54 with a range of -20°C to 55°C, and the panel is surface mounted, so plan a flat wall beside the entrance. It is for residential installations with four homes/apartments.

A covered position helps keep driving rain and direct sun off the camera. For more homes or a single home, other models in the range may fit better, including those under CDVI products.

What the figures mean in practice

• 12Vdc, 280mA: the most the internal lock supply gives, and it is for fail secure only. Check the lock's own current draw against this figure.
• 1 to 99s: how long the lock stays released after an unlock command.
• Up to 4 door stations: the limit for an ATRIUM connection using CDV-ACCS.
• 0.8W and 3W: the standby and working power at the 24Vdc supply. Use the working figure when adding up loads.

Installing it

• Space: allow 176 mm high and 90 mm wide on the wall, with 27 mm of depth from the wall.
• Lock choice: the internal supply is for a fail secure lock. A fail secure lock stays locked with no power and releases when powered, and anything else needs its own supply and a relay rated for it.
• Escape routes: a door on an escape route usually needs its own release route, so settle the lock type with whoever holds the fire strategy.

Planning your system

A job also needs an indoor monitor for each home, a power supply and a lock, plus a credential type agreed in advance. 2EASY monitors include the CDV-47B touch monitor and the CDV-470DX-W WiFi monitor.

2 lock outputs are possible with CDVI-RLC, applicable on the monitors only. For a door opened from a phone or panel, an electric strike is one common lock type, and parts such as cable sit under door entry accessories.