Page 149 - DCAP311_DCAP607_WIRELESS_NETWORKS

Unit 9: Wireless MAN Systems

9.2 Point-to-point Wireless Networks Notes

Point to Point links are an excellent way how to make connections between two sites and achieve
high data transfer speeds. This is an ideal way how to connect two offices. Also these types of
wireless links are very useful if you need to create backbone link from some distant radio access
point to your main Internet source. For creating such connections we recommend to use our 5
GHz and 2.4 GHz wireless client kits

Figure 9.1: Point to Point Network

Source: http://www.eleconinfotech.com/Wireless%20Solutions.html
9.3 Cable Networking of Point-to-point Wireless Network

Cable is the medium through which information usually moves from one network device to
another. There are several types of cable which are commonly used with LANs. In some cases,
a network will utilize only one type of cable, other networks will use a variety of cable types.
The type of cable chosen for a network is related to the network’s topology, protocol, and size.
Understanding the characteristics of different types of cable and how they relate to other aspects
of a network is necessary for the development of a successful network.
Point-to-point topology is the simplest of the physical layouts of network devices. Point-to-point
connections mean that two devices (nodes) have a single path for data to travel between them
and there is nothing that breaks up that path.
A prime example of how this topology is implemented in networking is the manner in which
terminals are now connected to mainframes or mini-computers. Instead of having many cables
from numerous terminals hooked into one of these computers, a device known as a terminal
server allows the data from several terminals to be transmitted over a single cable. This single
cable connection between the computer’s front-end processor and the terminal server forms
a point-to-point link. In addition, some terminal servers form point-to-point links with the
individual terminals.
The point-to-point topology can be seen as one of the basic building blocks of larger, more
complicated topologies. All major topologies include point-to-point connections, even if there
is no wire between two devices, but some other medium instead. Satellite transmissions are
considered to be point-to-point communications. Similarly, laser transmissions can also be
viewed in this manner. A variant on point-to-point connections is a multipoint topology in which
a single cable may split into several segments in order to connect to several devices.

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