The document discusses telecommunication networks, defining key terms like point-to-point connections and switching systems. It explains the structure of telecommunication networks, including how nodes are interconnected and the concept of a fully connected network. Additionally, it contrasts manual and automatic switching systems within these networks.

1.  Telecommunication network
 Point-to-point connection
 Switching Systems
 Comparison between manual and automatic
switching system
Telecommunication System
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2. Telecommunication network: A telecommunication network contains a large number of
transmission links joining different location called nodes of network
In telephone conversation, the one who initiates the call is referred to as the Calling
Subscriber and the one for whom the call is destined is the Called Subscriber
"telecommunications": from the Greek, meaning "communications at a
distance".
The hardware used to establish connection between inlets and outlets is called
the Switching Matrix or the Switching Network
A trunk is a communications line or link designed to carry
multiple signals simultaneously to provide network access between two points
Telecommunication network
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3. Given n nodes, if every node is connected to every other node (except itself) the
number of connections will be n*(n-1)/2
Networks with point-to-point links among all the entities are known as Fully Connected
Networks
A point-to-point connection: is a permanent direct communication link
between two parties
Point-to-point connection
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4. Switching Systems
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5. Comparison between manual and automatic switching
system
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6. EduNet School, (AL-AMIN)