Fire alarm detection system must be using manual and automatic devices , usually we are using smoke and heat detectors for the automatic approach and manual call point for the manual detection. in the below we are going to learn about the manual call point concepts, types , and how to design. manual call point […]
An atom is the smallest particle of an element that retains the characteristics of that element. Each of the known 110 elements has atoms that are different from the atoms of all other elements. This gives each element a unique atomic structure. According to the classic Bohr model, an atom is visualized as having a
Light is a physical phenomenon but is interpreted by psychological processes in our brain. It is, therefore, a bit more complex to measure than other physical processes. Some prerequisites have to be established in order to make objective measurements. One of these is the bandwidth of the light frequencies considered, and this is usually from
The techniques used with contactless cards for transferring energy and data are not new. They have been common knowledge for many years in radio-frequency identification (RFID) systems, which have been used for a variety of applications, such as animal implants and transponders for electronic anti-start systems for vehicles. There are many techniques for identifying persons
The selection of the correct electrified locks is critical . Where improper locks are used, we suffers from any of the following problems: Failure to comply with code Improper function, causing traffic queues Unsafe exiting conditions Unreliable lock operation resulting in frequent maintenance Persons trapped within a space during an emergency Types of Electrified Locks
Doors and frames are fire rated together as an assembly, not individually as pieces. The integrity of the door assembly is critical to the success of the assembly to achieve and maintain its fire rating. Any penetrations into the door or frame will affect the ability of the assembly to hold its rated resistance to
A door can be evaluated on a number of important criteria: They must block passage They must open and close easily They should be robust against intrusion They should fit the visual aesthetics of the environment in which they are mounted The basic door is the standard Single- and Double-Leaf Swinging Door. This door includes
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Access Control System Server store all of the system configurations and historical data, manage communications throughout the system, and serve the Workstations with real-time data and reports. Servers also control so-called “Global” system decisions or functions that span across multiple Access Control Panels. The Access control System Server is the all-seeing, all-knowing entity that completely
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Access Control Panels perform the heavy lifting in Alarm/Access Control Systems. Every single function that Access Control Systems perform in the real world occurs first in the “mind” of an Access Control Panel. All Access Control Panels share certain attributes and components. Alarm Input and Output Control Components may be internal or external to the
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Cabling is the medium for the transmission of data between hosts on the LANs. LANs can be connected together using a variety of cable types, such as unshielded twisted-pair, coax, or fiber. Each cable type has its own advantages and disadvantages . Three primary types of cable media can be used to connect systems to
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