by Dinesh Thakur Category: Communication Networks

Due its outstanding performance characteristics, fiber-optic cable is also used in LAN s. FDD I (Fiber Distributed Data Interface) is the current LAN standard (IEEE and ANSI) for such a network. FDDI can be extended to the desktop, either directly or through the use of twisted pair in a CDDI application.

 
by Dinesh Thakur Category: Communication Networks

Open Systems Interconnection (OSI) was set up as an international standard for network architecture. The International Organization for Standardization (ISO) took the initiative in setting up OSI. OSI has two meanings. It 'refers to:

 
by Dinesh Thakur Category: Communication Networks

The maximum allowable length of a segment for the 10Base5 is 500 meters. Up to 100 nodes can be connected to a segment. That is up to 100 transceivers can be connected. Repeaters are used to connect terminals that are separated from one another beyond the distance specified above, or to connect more than a limited number of nodes. Each repeater has two ports so that it receives signals through one of these ports and sends them through the other port after amplification. An example of the 10Base5 LAN, Up to 1024 nodes can be connected to a LAN expanded by using repeaters.

 
by Dinesh Thakur Category: Communication Networks

This uses traditional thick baseband coaxial cable in bus topology to connect multiple computers as shown. This single transmission line is called a segment. A coaxial cable 10mm in diameter, known as a thick coaxial cable is used as a transmission line. A terminator is connected at each end of the cable. Note that proper data communication cannot be assured even if one of these terminators is missing or not properly connected.

 
by Dinesh Thakur Category: Communication Networks

The Figure shows the BNC connector and T-connector. The BNC connector and T-connector, these are simple connectors that cannot exchange data. An NIC and T-connector must be directly connected.

 
by Dinesh Thakur Category: Communication Networks

CDDI is also known as TPDDI (Twisted-pair Distributed Data Interface). CDDI employs Cat 5 UTP as an inexpensive means of connecting workstations and peripherals to FDDI fiber optic backbone LANs. A transmission rates up to 100 Mbps may be achieved in this scheme.

 
by Dinesh Thakur Category: Communication Networks

Wireless LANs offer the obvious advantage of avoidance of cabling costs, which can be especially important in a dynamic environment where there is frequent reconfiguration of the workplace. Additionally, wireless LANs provides LAN capabilities in temporary quarters where costly cabling would have to be abandoned. Each workstation is fitted with a low power radio antenna.

 
by Dinesh Thakur Category: Communication Networks

Data transmission can be divided into parallel and serial data transmission.

 
by Dinesh Thakur Category: Communication Networks

This is very simple optical fiber communication system. In this particular scenario, the optical fiber requires one connection to the transmitter side and another connection at the receiver side. In another scenario when it is required to communicate over long distances where more than one length of fiber cable and other supporting equipment are placed in the system.

 
by Dinesh Thakur Category: Communication Networks

Broadband ISDN (BISON) The next-generation of ISDN technology, with promised bandwidths from 150 megabits per second upward, sufficient to carry video-phone calls and movies. BISON will be carried over FIBRE-OPTIC cabling rather than wire, and the underlying transport protocol will be ASYNCHRONOUS TRANSFER MODE. Different implementations are planned in the USA, which will employ YNCHRONOUS OPTICAL NETWORK and Europe, which will use SYNCHRONOUS DIGITAL HIERARCHY.



 
About Dinesh Thakur

Dinesh ThakurDinesh Thakur holds an B.SC (Computer Science), MCSE, MCDBA, CCNA, CCNP, A+, SCJP certifications. Dinesh authors the hugely popular blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps. For any type of query or something that you think is missing, please feel free to Contact us.



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