10 Base - T

It is also called twisted wire pair or TP Ethernet.

Hubs

These are extension of connections with multiplexing concept.
They are sometimes called Ethernet-in-a-box

Protocol Software and Ethernet Wiring

All wiring technologies use identical Ethernet specifications.
Which means they use same frame formats.
They use same CSMA/CD algorithms.

Comparison of Wiring Scheme

The transceivers allow computers to be powered off or disconnected from the network without disrupting it.

Topologies and Network Technologies

The twisted wire pair is physically a star topology but logically, it is a bus topology.
The token ring is physically a star topology but logically, it is a ring topology.

Filtering Incoming Frames

The analyzers use filters to capture certain frames which match the filtering criteria and ignores the rest.

Advantages and Disadvantages of Wiring Schemes

The figure contains 3 schemes as follows: 1. Thin 2. Thick 3. Twisted pair

Reliable

The connections which use transceivers allow the computers to be disconnected without disturbing the whole network.

Cost

The twisted wire pair is cheapest.
The Thicknet is the most expensive and is no longer used.

The Topology Paradox

Logical Topology

It is defined by specific network technology.

Physical Topology

It is defined by wiring scheme.

Network Interface Card and Wiring Schemes

The cable used for wiring should match the following: 1. The intended data rate 2. The distance between devices 3. The amount of em-noise 4. Anticipated future needs 5. Cost

Wiring Schemes and other Network Technologies

• The local talk technology uses hubs (physically star) to implement a logically bus topology.
• The IBM's Token Ring technology uses hubs (physically star) to implement a logically ring topology.