Planning and Cabling Networks Flashcards
Router
Primary device to interconnect networks that breaks up broadcast domains, collision domains and consists of LAN and WAN interfaces
To create a LAN…
Connect an end device to a network by using a switch or a hub
Vertical cabling
interconnects multiple telecom rooms and equipment rooms, primarily uses fiber optic
Horizontal cabling
from telecom room to work area; uses patch cable up to 90 m
Work area
locations of end devices for users straight-through most common, can’t exceed 100 m
Telecom room
connections to intermediary devices such as routers, switches and hubs
Factors for considering a switch
Cost: determined by capacity and features
Number and type of ports: UTP or fiber, Mix of UTP speeds or no, Enough for today’s needs
Factors for choosing a router
Expandability, media, OS features
Choosing media
Cost
Bandwidth
Ease of installation
Suspectible to electromagnetic interference or radio frequency interference
Cable length: attenuation increases as cable is longer = signal weakens
Straight through characteristics
have same termination at each end Connects: switch to router Ethernet port computer to switch computer to hub
Crossover characteristics
have a T568A at one end T568B on the other end
Connects two like devices and:
computer to router Ethernet port
switch to hub
DCE….
provides clocking services to another device (WAN access provider)
DTE…..
WAN customer receiving clocking services
WAN take a number of forms including….
RJ-11 connectors (telephone, DSL lines)
60 pin serial connections including Smart Serial and Winchester Connector (34-pin female vs. 35 serial cable connector)
Console:
primary interface for initialization of a Cisco router or a switch (DB-9 connector, RJ-45 connector)
