For your convenience, please find below a short glossary of terms commonly used in the field of electrical integration, home entertainment and electrical automation. If you have questions about any aspect of electrical wiring for home or business, we encourage you to contact us. We are always happy to answer your questions.
1080P: 1080p is the shorthand name for a category of HDTV video modes. The number 1080 represents 1,080 lines of vertical resolution (1,080 vertical scan lines), while the letter p stands for progressive scan (meaning the image is not interlaced). 1080p can be referred to as full HD or full high definition although 1080i (interlaced) is also “Full HD” (1920×1080 pixels).
120Hz: a faster refresh rate allows the 120Hz LCD to introduce less blurring than standard 60Hz models in fast-motion scenes. We can prove the difference using test patterns, but actually seeing any difference in real program material is difficult.
Blu-ray: Blu-ray Disc (also known as BD or Blu-Ray) is an optical disc storage medium designed to supersede the standard DVD format. Its main uses are for storing high-definition video, PlayStation 3 video games, and other data, with up to 25 GB per single layered, and 50 GB per dual layered disc.
Cat5: Category 5 cable is a twisted-pair, high-signal integrity cable type often referred to as Cat5 or Cat-5. Most cables are unshielded, relying on the twisted-pair design for noise rejection, and some are shielded. Category 5 has been superseded by the Category 5e specification structured cabling for computer networks
Cat5e: Cat 5e cable is an enhanced version of Cat 5 that adds specifications for far-end crosstalk. It was formally defined in 2001 as the TIA/EIA-568-B standard, which no longer recognizes the original Cat 5 specification.
Cat6: Category 6 cable, commonly referred to as Cat-6, is a cable standard for Gigabit Ethernet and other network protocols that are backward compatible with the Category 5/5e and Category 3 cable standards. Compared with Cat-5 and Cat-5e, Cat-6 features more stringent specifications for crosstalk and system noise.
Digital Cable: Digital cable technology has allowed cable providers to compress video channels so that they take up less frequency space and offer various two-way communication capabilities. This has enabled digital cable providers to offer more channels, video on demand services (without use of a telephone line), telephone services, high-speed Internet services, and interactive television services. In addition, digital cable technology allows for error correction to ensure the quality of the received signal and uses a secure digital distribution system (i.e., a secure encrypted signal to prevent eavesdropping and “stealing” service).
Digital Audio: Digital audio has emerged because of its usefulness in the recording, manipulation, mass-production, and distribution of sound. Modern distribution of music across the Internet through on-line stores depends on digital recording and digital compression algorithms.
HDMI: HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transmitting uncompressed digital data. HDMI supports, on a single cable, any TV or PC video format, including standard, enhanced, and high-definition video.
Head End: Industry term referring to a centralized point from which all
signals are routed or distributed.
Infrared: Infrared is used in remote technology to control multiple devices. An infrared remote uses different infrared light frequencies to “talk” to each machine it controls. Because it uses a light beam to communicated, the remote device must be used in the “sight-lines” of the machine it controls.
IP Camera: IP cameras are closed-circuit television (CCTV) cameras that use Internet Protocol to transmit image data and control signals over a Fast Ethernet link.
Mesh Network: Mesh networking is a type of networking wherein each node in the network may act as an independent router, regardless of whether it is connected to another network or not. It allows for continuous connections and reconfiguration around broken or blocked paths by hopping from node to node until the destination is reached.
Modem: Modem, short for modulator-demodulator is an electronic device that converts a computer’s digital signals into specific frequencies to travel over telephone or cable television lines.
RG-6: The most commonly recognized variety of RG-6 is cable television (CATV) distribution co-ax, used to route cable television signals to and within homes, and RG-6 type cables have become the standard for CATV, mostly replacing the smaller RG-59, in recent years.
Router: A router is a device that forwards data packets along networks. A router is connected to at least two networks, commonly two LANs or WANs or a LAN and its ISP’s network.
Wi-Fi: Wi-Fi allows local area networks (LANs) to be deployed without wires for client devices, typically reducing the costs of network deployment and expansion. Spaces where cables cannot be run, such as outdoor areas and historical buildings, can host wireless LANs.