Which specifications allow designers to select a specific product by name and model number?

Proprietary specifications are designed to allow designers to select a specific product by name and model number. This type of specification gives a specific brand or manufacturer an advantage by ensuring that only their designated products are used in the project. It enables the designer to maintain a certain level of quality, compatibility, and performance that is guaranteed by the selected brand. This approach can be beneficial when a specific product has unique features or characteristics essential for the project, ensuring consistency and reliability in the fire alarm system.

On the other hand, descriptive specifications outline the characteristics and qualities required without naming a specific product, leaving the selection open to various manufacturers and models. Performance specifications focus on the outcomes that a product must achieve rather than on specific products, allowing for more flexibility in options. Technical specifications provide detailed instructions related to the implementation and usage of products, but they do not specifically name products or model numbers, thereby providing less control over the exact items used in the installation.