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* Unshielded Twisted-pair * Coaxial * UTP * Optical-fiber *
Some important issues that you should consider when designing and installing a system for present and future needs include the following:
While meeting performance requirements for voice alone is relatively easy, the new heterogeneous communications environments are more challenging.
The design of wiring systems for voice communications has not changed radically over the last twenty years. Bringing a telephone line to a user’s desk is a simple and well understood task. However, changes in business applications require the integration of voice applications with support for data, graphics, integrated services digital network connections, and other services over a single, standardized cabling system. We are beginning to see the beginnings of this new age of unified multimedia in the telecommunications industry. For example, asynchronous transfer mode is knocking at the door, promising to combine voice, high-speed data, video and imaging applications in one high performance network infrastructure.
In contrast to voice systems, data communications cabling systems have undergone many changes during this same period. Data network cabling has evolved from the proprietary solutions of the 1970s, with shielded twisted-pair and coaxial cabling, to the rise of standards compliant structured wiring systems in the late 1980s, when unshielded twisted-pair, or UTP, and optical-fiber cable predominated. In addition, data communications is no longer confined to a particular department or even a single company. The exchange of information is essentially without boundaries.
Discussions about using optical-fiber cable connections to the desktop are prevalent in the telecommunications industry. Some applications, in fact, may require the use of optical fiber either immediately or in the near future.
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* Complete standalone operation without PC connection * Outdoor spec with waterproof and weatherproof (IP65) * Graphic LCD and keypad for user friendly interface * Built-in relay and switch input for direct lock interface * Optional external relay unit for secure door control * Compact, slim and...