Telecom terms and definitions pdf

LPTV service includes the existing translator service and operates on a secondary basis to regular television stations. Transmitter output is limited to 1, watts for normal VHF stations and watts when a VHF operation is on an allocated channel. Networks may include transmission devices, servers, cables, routers, and satellites. The phone network is the total infrastructure for transmitting phone messages.

PCS licenses are most often used to provide services similar to advanced cellular mobile or paging services. However, PCS can also be used to provide other wireless communications services, including services that allow people to place and receive communications while away from their home or office, as well as wireless communications to homes, office buildings, and other fixed locations. Higher per-minute rates are usually charged for calls made or received while roaming.

Long distance rates and a daily access fee may also apply. A complete satellite communications system also includes earth stations that communicate with each other via the satellite.

The satellite receives a signal transmitted by an originating earth station and retransmits that signal to the destination earth station s. Satellites are used to transmit telephone, television and data signals originated by common carriers, broadcasters, and distributors of cable TV program material. A service plan typically consists of a monthly base rate for access to the system and a fixed amount of minutes per month.

Such unauthorized switching violates FCC rules. TTY A type of machine that allows people with hearing or speech disabilities to communicate over the phone using a keyboard and a viewing screen. It is sometimes called a TDD. UNIVERSAL SERVICE The financial mechanism that helps compensate telephone companies or other communications entities for providing access to Telecommunications services at reasonable and affordable rates throughout the country, including rural, insular and high costs areas, and to public institutions.

Companies, not consumers, are required by law to contribute to this fund. It is a device or set of devices which is configured to permit or deny computer based application upon a set of rules and other criteria. Launch Video Frame A rack to which telecommunications equipment is mounted. You will see these in Central Offices. It allows faster speeds than the X. Its main application is interconnecting local area networks. Functional Areas These are different areas of a business.

There are certainly more than what are shown here but this simple diagram will give you an idea of some functional areas. HD Voice A technology that provides better audio quality by delivering at least twice the sound range wideband of a traditional narrowband telephone call. The authoring language used to create web pages for the World Wide Web. HTML also allows for links to other webpages on the same server or somewhere else on the internet. The software browsers or email programs then converts the contents to a suitable format for viewing.

An IP address has two parts: the identifier of a particular network on the Internet and an identifier of the particular device which can be a server or a workstation within that network. This is in direct competition with traditional cable and broadcast television.

IPTV can be bundled with VoIP and Internet access for a triple play service, increasing the competition that other television providers face. Infrastructure This is an incredibly important part of the communications industry. ISPs use this to provide secure, node to node communications in support of multiple, simultaneous tunnels in the core of the internet or IP based networks.

LAN Local Area Network Locally owned and administered network for data communications that provides a relatively high bandwidth over a limited geographic area for communication between attached devices typically personal computers and servers.

LANs are most often at a customer site. An Ethernet is a common example of a type of LAN. This is a big deal because for the most part, consumers want more and more data.

In the world of CAT5 the explosion of choices that digital TV is bringing the multiplex means to offer subscribers a choice of various starting times for movies and events. Return to Top N Network A telecommunications network is a collection of terminals, links and nodes which connect together to enable telecommunication between users of the terminals. Networks may use circuit switching or message switching. Each terminal in a network must have a unique address so messages or connections can be routed to the correct one.

Many types of technicians need to be familiar with products from various manufacturers. Outside Plant Refers to all of the physical cabling and supporting infrastructure such as conduit, cabinets, tower or poles , and any associated hardware such as repeaters located between a demarcation point in a switching facility to another switching facility or to a customer premises.

P Return to Top PBX Private Branch Exchange Digital or analog telephone switchboard located on the customer premises and used to connect private and public telephone networks. In other words, an analog telephone switchboard located on the customer premises and used to connect private and public telephone networks. Plant A general term for all equipment used by a telephone company to provide telecommunications services.

In the telecom business, plant comes in two variations — inside and outside plant. Inside is in a building. Outside is outside the building — on poles, in the ground. This could be anything from an office to a factory to a home. Prior Learning Assesment PLA The process by which a student's former learning, both formal and informal is tested and evaluated for possible academic credit.

Reseller Telecommunications companies that purchase network capabilities from external sources and resell those services to private households or businesses. Routers are the equipment used to make this happen. Lower rates can also be transferred via an electrical interface. SS7 Signaling System Number 7 An international, standard, set of telephone signaling protocols which are used to set up most of the world's public switched telephone network telephone calls.

The main purpose is to set up and tear down telephone calls. Satellite Satellite telecommunications establishments are made up mostly of government and private organizations that transmit a variety of data through satellites, including photos of the earth, messages to and from public safety officials, and a variety of other information. Return to Top Smartphone A smartphone is a mobile phone on steroids. In this authoritative resource for telecommunications, networking, the Internet, and information technology there are more than 20, terms defined.

Plus there is a front section packed full of information. Aside from the information you expect to find, in this 18th updated and expanded edition, you will find three new sections; Best Dollar-Saving Tips, Hot and New in Telecom, and Disaster Planning.