In fire alarm systems, “open protocol” refers to a system

that uses publicly available protocols to create compatible devices and software that any manufacturer can use. These systems are designed to be flexible and easily expandable, allowing for interoperability with other systems and devices. With an open protocol system, building owners and facility managers can choose from various compatible devices and software, making adding new features or integrating with other building systems easier. In addition, this allows for greater customisation and integration, making it easier to tailor the plan to the specific needs of the building or facility.

Open protocol systems are commonly used

in larger or more complex buildings where interoperability is critical. They are also cost-effective, as building owners and facility managers can choose appropriate devices or software for their needs and upgrade or expand the system without being tied to a single manufacturer.

On the other hand, “closed protocol” fire alarm systems use

proprietary protocols from the manufacturer, limiting customisation and integration options. In addition, only devices and software from the same manufacturer can be used, which may restrict upgrades or expansion. These systems are often used in smaller or less complex buildings where interoperability is less critical and can be simpler to install and maintain. However, they may be more expensive in the long run and less flexible regarding upgrades and expansion.

Open protocol fire alarm systems offer greater flexibility and customisation

options than closed protocol systems. But closed protocol systems can be suitable for smaller or less complex buildings where interoperability is less critical. The choice between the two usually depends on the specific needs and requirements of the building or facility.