A back box is a protective enclosure installed behind electrical switches, sockets, and other wall-mounted devices. It provides a safe space to hold wiring, prevent electrical hazards, and keep connections organized. Back boxes can be made of metal or plastic and are fitted inside walls to support and secure electrical fixtures properly.

Back boxes behind the electrical switches and panels help maintain neat and tidy wiring connections, which makes it easy to identify faults and replace wiring. These enclosures prevent damage to the electric components due to rusting, dust, and moisture. When used efficiently, these boxes offer long-lasting performance and help extend the lifespan of switches, sensors, and other electrical units

Back Box

A backplane is a circuit board that connects multiple electronic modules or devices in a system. It works like a central backbone, allowing different components—such as processors, power units, or communication cards—to plug in and share data. Backplanes are commonly used in servers, industrial machines, and security systems for stable and organized connections.

Backplane helps engineers add more electrical components to a system without re-establishing the wiring systems. These circuit boards help connect more cards with electrical modules that are best for long-range connections. All the components work together in sync, which offers consistent performance. They can communicate smoothly without interruption.

Backplane

A backup battery is a power source that keeps devices running when the main electricity supply fails. It provides immediate power to important equipment such as security systems, routers, alarms, and medical devices. Backup batteries help prevent interruptions, data loss, and system shutdowns during power cuts or emergencies.

Backup batteries supply energy for a short time, giving users a few hours to restore the main power source or shut down the systems safely without losing crucial data. Wherever these batteries are installed, like houses, offices, and industrial facilities, they serve as an alternate power source to complete essential tasks and prepare for long-term power outages. 

Backup Battery

Bandwidth refers to the maximum amount of data that can be transmitted over a network connection in a given time. It is usually measured in bits per second (bps). Higher bandwidth means more data can move at once, resulting in faster loading, smoother streaming, and better performance for connected devices.

High Bandwidth is essential for networks that are designed to send and receive high amounts of data, such as during video calls or remote data transfers. Low-bandwidth networks can only be used for sharing text messages and are very unstable for delivering quick responsiveness consistently. Maintaining a multi-device setup with quick data transfer capability requires high bandwidth.

Bandwidth

A barcode label is a printed tag that contains a barcode and related information in a machine-readable form. It is used to identify products, track items, and manage inventory. Barcode labels are commonly seen on retail goods, cartons, and equipment, allowing quick scanning and accurate data entry.

These labels have specific linear patterns that allow a barcode scanner to convert them into meaningful data instantly. This type of printing technology allows a brand to feed more information into a compact space. As they are computer printed, they reduce manual errors and allow for quick stock in or out products and generate bills instantly in commercial as well as industrial settings, like logistic centers.

Barcode Label

A beam detector is a security sensor used to detect movement or intrusion by using infrared or laser beams. It works by transmitting a straight beam from a transmitter to a receiver. When an object or person crosses the beam and breaks the signal, the system immediately triggers an alarm or alert.

Beam detectors are commonly used for preventing intrusion in homes, offices, warehouses, and open outdoor areas. They have long-range detection and are less likely to cause false alarms compared to motion sensors. These devices are ideal for securing gates, fences, corridors, and boundaries, ensuring reliable and continuous protection.

Beam Detector

A biometric scanner is a security device that identifies and verifies a person using unique physical or behavioral traits. Common types include fingerprint scanners, face recognition, iris scanners, and voice recognition systems. These features are unique to each individual, making biometric scanners more secure than passwords or ID cards.

Biometric scanners are most commonly used at every entry point of offices, airports, schools, banks, corporate buildings, and more. These compact devices prevent unauthorized entries into a specific zone or a building. They offer fast, accurate identification and reduce the risk of intrusion. By relying on personal biological data, biometric scanners improve security and make modern security systems more reliable.

Biometric Scanner

A branch circuit is a part of an electrical wiring system that carries power from a distribution board to specific outlets, lights, or equipment. It is the final link between the main power source and electrical devices. Each branch circuit is protected by a circuit breaker or fuse for safety.

Branch circuits help to divide electrical loads into different circuits, preventing overloads and improving the reliability of the system. These circuits ensure that power is supplied safely and efficiently to different areas of a building, homes, offices, and industrial facilities. A planned installation of a branch circuit design improves safety and reduces the risk of electrical faults.

Branch Circuit

A break-glass unit is a device used in intrusion and security systems to trigger an immediate alarm if it detects a glass break in windows or doors. It is usually installed near exits or high-risk areas. When the glass is broken or pressed, the alarm system is activated instantly to signal an intrusion or emergency.

Break-glass units are simple, reliable, and easy to use intrusion detection devices. They provide a quick way to activate an alarm when someone tries to break a window or door glass to enter a house or office. It is commonly used in offices, banks, and restricted areas; it adds an extra layer of security and ensures a fast response during critical incidents.

Break Glass Unit

A bullet camera is a type of CCTV camera known for its long, cylindrical shape and strong outdoor performance. It is designed to monitor specific areas such as entrances, parking lots, corridors, and boundaries. Bullet cameras are usually weatherproof and suitable for both day and night surveillance.

These cameras offer clear images and have a long footage recording range. Depending on the type of bullet camera it is, they are very easy to install. Many bullet cameras come with features like infrared night vision, motion detection, and high-resolution video, which enhance the overall video quality. Because of their visible design, they also discourage the intruders from making unauthorized entries, making them a popular choice for security systems.

Bullet Camera

Bus topology is a network layout where all devices are connected to a single central cable called the bus. Data sent by one device travels along this main cable and is received by all connected devices. It is one of the simplest and most cost-effective network designs.

Bus topology is easy to install and requires fewer cables compared to other types of topology layouts. However, if the main cable fails, the entire network can stop working. It is commonly used in small or temporary networks and is less compatible for large systems with low or average data transfer speed and lower reliability.

Bus Topology

A BOQ, or Bill of Quantities, is a detailed document that lists all materials, labor, and services required for an installation project. It includes item descriptions, quantities, specifications, and sometimes estimated costs. A BOQ helps contractors, suppliers, and clients clearly understand the project scope.

The BOQ is used for conveying the total budget and resources required for the projects. It serves as a tender quotation communicating the accurate cost comparison between different contractors. In electrical, security, and infrastructure projects, a BOQ ensures efficient use of resources and smooth project management.

What is BOQ (Bill of Quantities)?

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Glossary Terms Starting with "B"