The 2N EntryCom IP Security Relay is an electronic unit from 2N Telecommunications, specifically designed for use in intercom systems. It serves as a security component for controlled activation of a door opener contact and is mounted in a protected indoor environment. The unit is connected via a two-wire connection to the 2N EntryCom IP door station, with a maximum cable length of 10 meters. Power supply and control are provided by the door station, so no additional power source or external control is required.

Security Relay

The Security Relay performs the function of secure door opening control. It receives a coded digital message via the two-wire connection whenever the 2N EntryCom IP door station receives an opening command. This command can be triggered in various ways: by DTMF input of the door opener code during a call, via an http request, or by code entry using the integrated keypad. The digital message ensures that only authorized opening commands are forwarded to the relay.

Functions and Equipment in Detail

The unit is designed to prevent manipulation through short-circuiting or connection to an external voltage source. This significantly increases the security of the access system, as unauthorized persons cannot open the door by simple electrical means. Communication occurs exclusively over the two wires, which are also used for power supply. The digital encoding of the message ensures that only authentic commands are executed by the relay.

Technology Explained Simply

The technology is based on bidirectional communication over two wires, with the door station providing both power and control information. The relay processes the received digital message and activates the door opener contact accordingly. The use of a coded message prevents unauthorized signals or false commands from opening the door. The maximum cable length of 10 meters allows for flexible installation within a building without compromising signal quality.

Compatibility and Accessories

The Security Relay is specifically developed for use with the 2N EntryCom IP door station. It is not intended for other door intercom systems, as the communication protocols and digital message encoding are specifically tailored to the 2N system. The unit is not a standalone device, but enhances the functionality of the door station by providing secure door opening control.

Mounting and Installation

Mounting is carried out in a protected indoor environment, for example in a distribution box or enclosure environment. Connection to the 2N EntryCom IP door station is made via two wires, which may have a maximum length of 10 meters. Installation requires no additional power sources or control devices, as power supply and control are handled by the door station. The unit is designed for use in intercom systems that must meet high security requirements.

Advantages in Operation

The use of the Security Relay increases the security of the access system, as manipulation via short-circuiting or external voltage sources is not possible. The digital encoding of the message ensures reliable and authentic control of the door opener contact. Simple installation and integration into existing 2N EntryCom IP systems reduce setup effort. The unit is easy to maintain and requires no additional components for operation.