TRANSMISSION MEDIA
COMPLETE
GUIDED MEDIA AND ____________ MEDIA
GUIDED MEDIA AND -UNGUIDED_ MEDIA
TWISTED MEDIA TYPES
Unshielded
shielded
Benefits
Greater capacity
Smaller size and weight
Lower attenuation
electromagnetic isolation
Greater repeater spacing
Categories of coaxial cables
RG-59 Cable TV
RG-58 Thin Ethernet
RG-11 Thick Ethernet
COMPLETE THE CHART
SEEE THE CHART
GUIDED: TWISTED PAIR CABLE -COAXIAL CABLE AND FIBER OPTIC CABLE
UNGUIDED: FREE SPACE
Pros and cons
Cheap
Easy to work with
Low data rate
Short range
Transmission Characteristics
Uses total internal reflection to transmit light
Can use several different light sources
Relation of wavelength, type and data rate
Fiber optic cable connections
SC - connection
ST- connection
MT-RJ connection
DESIGN FACTORS
BANWIDTH
TRANSMISSION IMPAIRMENTS
INTERFERENCE
NUMBER OF RECEIVERS IN GUIDED MEDIA
CHARACTERISTICS
SAY 3 AT LEAST
ANALOG
DIGITAL
LIMIT DISTANCE
LIMIT BANWIDTH
LIMIT DATA RATE
SUSCEPTIBLE TO INTERFERENCE AND NOISE
Propagation modes
What are the propagation mode?
Transmission characteristics guided media
Twisted pairs with loading 2km
Twisted pairs multipair- cables 2km
Coaxial Cable 1 to 9 km
Optical fiber 40km
Optical fiber cable Application
Backbone networks - SONET
Cable TV - backbone
LAN