Area Network LAN

Cables are available in a variety of constmctions and materials, in order to meet the requirements of industry specifications and the physical environment. For indoor usage, such as for Local Area Networks (LAN), the codes require that the cables should pass very strict fire and smoke release specifications. In these cases, highly dame retardant and low smoke materials are used, based on halogenated polymers such as duorinated ethylene—propylene polymers (like PTFE or FEP) or poly(vinyl chloride) (PVC). Eor outdoor usage, where fire retardancy is not an issue, polyethylene can be used at a lower cost. 

The same concepts of a network as the local area network (LAN) ia an office can be extended over a broader area, eg, wide area network (WAN), effectively to extend the network around the world. This type of network is becoming more important as prepress operations try to work more... 

Command modules communicate with other modules through a local area network (LAN). Through this LAN, command modules receive information from the local control modules and store data. These data can be stored from a week to two years, depending on the recording interval and the number of points to be monitored. Unlike host-based systems, which use a central computer to interrogate each command module individually, the computer interface can tap into the network like any other command module. 

Light wave technologies provide a number of special challenges for polymeric materials. Polymer fibers offer the best potential for optical communications in local area network (LAN) applications, because their large core size makes it relatively cheap to attach connectors to them. There is a need for polymer fibers that have low losses and that can transmit the bandwidths needed for LAN applications the aciylate and methacrylate polymers now under study have poor loss and bandwidth performance. Research on monomer purification, polymerization to precise molecular-size distributions, and weU-controlled drawing processes is relevant here. There is also a need for precision plastic molding processes for mass prodnction of optical fiber connectors and splice hardware. A tenfold reduction in the cost of fiber and related devices is necessaiy to make the utilization of optical fiber and related devices economical for local area networks and tlie telecommunications loop. 

A local area network (LAN) linking the components of an analytical laboratory. pC = microcomputers. 

WAP. The WAP provides the wireless data communication service. It usually consists of a housing (which is constructed from plastic or metal depending on the environment it will be used in) containing a circuit board, flash memory that holds software, one of two external ports to connect to existing wired networks, a wireless radio transmitter/receiver, and one or more antenna connections. Typically, the WAP requires a one-time user configuration to allow the device to interact with the local area network (LAN). This configuration is usually done via a Web-driven software application which is accessed via a computer. 

But it is only one of hundreds of kinds of data that are transferred by HTTP on WANs (Wide Area Networks, LANs (Local Area Networks) and internal networks. HTTP offered an appropriate level of technology at the right time and its use has grown exponentially over the past decade. Virtually every computer in the world today contains an HTTP interpreter and generator (as do many dedicated devices which do not look like computers). 

A more recent development is to employ Local Area Networks (LANs) where the LAN is a serial communication link used as a data highway in the DCCS for the integration of intelligent terminals at the higher hierarchical levels. There are two principal types of LAN applicable to DCCS, viz. ... 

If your computer at work is on a local area network (LAN), you may already have access to an external connection. Almost all universities have permanent connections between their internal systems and the Internet. If you don t have access to an institutional connection, you have to obtain an access from an Internet service provider (ISP). For a full Internet connection, you must have software to make your computer use the Internet protocol, TCP/IP, and if your connection is through a modem this software will probably use PPP (point to point protocol). 

Wide Area Network (WAN) and/or Local Area Network (LAN) level... 

The scope for quality assurance embraces all components within the Local Area Network (LAN), e.g., the bridges and routers and the interface to the public telephone and telecommunications carrier (PTT) but not beyond this. The public domain infrastructure, e.g., Internet that connects site LANS, is not within the control of the pharmaceutical organization. The PTT is entrusted to pass the signal without error to the router at the destination network interface. It is not recommended to qualify the PTT ... 

The firm utilizes a Wide Area Network (WAN) to connect all Local Area Networks (LANs). The WAN is not validated as described below ... 

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