Chapter 6 - Cabling Solutions

Question 1

Twisted pair cabling

Answer 1

Cat 1 - Voice only phone cable, 1mbps

Cat 2 - 4mbps Token Ring, 4mbps

Cat 3 - 10BaseT Ethernet, 16mbps

Cat 4 - 16mbps Token Ring, 20mbps

Cat 5 - Ethernet, 2pair = 100mbps, 4pair = 1gbps

Cat 5e - Gigabit Ethernet, 2pair = 1gbps

Cat 6 - 10 Gigabit Ethernet, 2pair = 1gbps

Cat 6a - 10 Gigabit Ethernet, 10gbps

Cat 7 - 10gbps experimental

Question 2

Bidirectional Converter

Answer 2

Connects networks using both SMF and MMF

Also connects copper to fiber based parts of a network

Question 3

RJ-11

Answer 3

Telephone jack
Connects phone line to modem
4 wires
Used for dialup

Question 4

RJ-45

Answer 4

Ethernet Jack
Used to connect LANS
8 wires

Question 5

BNC

Answer 5

Bayonet Neil Concelman (British Naval connector)

Male adapter uses with 10BaseT Ethernet
Used with RG-58A/U cabling scenarios

And a lock you twist cable to seat in.

Question 6

DB-9 Connector

Answer 6

9 pin D type
Serial interfaces
Common for keyboards, mice and joysticks
1 bit per cycle

Question 7

DB-25

Answer 7

Analog 25 pin D sub connector
Parallel connections
Originally used to connect printers
8bits per cycle 
Data always arrives at the same time

Question 8

F-Type connector

Answer 8

Coax threaded connector
Common in TVs and Cable modems
It’s screws on and is a stable connection

Question 9

LC Fiber connection

Answer 9

A push/pull connector
Used in data comms and high density patch panels

Has a high density and is const effective

Question 10

UPC fiber connector

Answer 10

Ultra Physical Contact

Done shaped
optimises connections between 2 jacketed fiber cables
Reflex’s light back to the source called return loss that causes interference

Question 11

APC fiber connector

Answer 11

End is angled at 8 degree to reduce light reflection between two connected fibers

Reflected light hits cladding to reduced interface and return loss

Is more expensive than UPC

Question 12

MT-RJ fiber connector

Answer 12

Mechanical Transfer Jack

Used in small form factor devices
Fiber to desktop or fiber modems

Question 13

Fiber transceiver

Answer 13

Adaptor allowing interconnection of different network devices the use different physical media for data transferring

Question 14

SFP Transceiver

Answer 14

Small form factor pluggable

Plugs into a SFP port on a switch to provide a modular interface
Enables different networking standards

Question 15

SFP+

Answer 15

Small form factor pluggable +

Enchanted version
Handles 10gbps
Requires addition circuitry
Found in plug in cards for servers or switches

Question 16

GBIC

Answer 16

Gigabit Interface Converter

Converts electrical current to optical signals and back
1gbps or more transfer speed
Was replace by SFP

Question 17

QSFP

Answer 17

Quad small form factor pluggable

Used for data communication applications
Handles four different channel configurations

Question 18

Bidirectional

Answer 18

BiDi
Uses wavelength division multiplexing (WDM)
Simultaneous transmission on a single fiber in birth directions

Used only for fiber
Different frequencies used

Question 19

BiDi SFP and SFP+

Answer 19

Rescued infrastructure costs

Less cabling, tray space and fewer latch panel ports needed

Question 20

Duplex Tranceiver

Answer 20

Inter connects devices using different Dulles configurations

2 fibers, 1 sends and 1 to root

Half Duplex = send and receives both directions one at a time

Full Duplex = send and receive both at the same time

Question 21

Termination points

Answer 21

Centralised device connection

Question 22

66 Block (Punchdown block)

Answer 22

Commonly used as telephone systems cross connect
50 wire pairs
Wires connect to terminals using punchdown tool
Connects phones to offices by using extension numbers

Question 23

110 Block

Answer 23

Punchdown media type used in data networks
25 to 500 wire pairs
Metal jumpers used to bridge connections

Question 24

Patch panel

Answer 24

Ethernet connectors
Connects switches ect using Ethernet (RJ-45)

Can use a patch panel for fiber and as a fiber distribution panel where a multi fiber backs can split into multiple individual cables

Easy to re configure and improves cosmetic appearance in cabling rooms.

Question 25

Cat 3

Answer 25

Copper cabling UTP telephone wire Up to 10mbps

Question 26

Cat 5

Answer 26

High performance multiple pair 8 wires Twisted pair 10 to 100mbps

Question 27

Cat 5e

Answer 27

Supports full duplex fast and Gigabit Ethernet Used in networks 100mbps to 1 gbps

Question 28

Cat 6

Answer 28

``` Higher performance Reduced cross talk and system noise Backward compatible with 5e, 5, 3 cabling devices Carey high speeds for longer distance 1 to 10gbps ```

Question 29

Cat 6a

Answer 29

10gb Ethernet Twisted pair Bandwidth 500MHz Requires matching components to be 6a compatible Has shielding as default where 6 didn’t Reduced cross talk and increased distance

Question 30

Cat 7

Answer 30

Frequency of 1 to 600MHz Over 100mbps reliable 10gbps distance Used in 10gb Ethernet

Question 31

RG-6

Answer 31

Common for TV, Satellite, TV antenna and broadband Internet large conductor core provides better signal quality Harder to implement

Question 32

RG-59

Answer 32

Common TV cable Smaller than RG-6 which affects signal quality Good for low signals under 50MHz

Question 33

10BaseT

Answer 33

Fast Ethernet IEEE 802.3 Up to 100mbps ``` 10= Speed Base= uses 100% or 0% of available bandwidth T= Twisted Pair ```

Question 34

Broadband

Answer 34

Uses variation in frequency where you have to tune correct channel. It’s shared bandwidth

Question 35

100BaseTX

Answer 35

Uses 2 pairs

Question 36

10BaseT4

Answer 36

Uses 4pairs (all 8 wires)

Question 37

100BaseFX

Answer 37

Is Fiber

Question 38

1000BaseT

Answer 38

Gigabit Ethernet over copper wire IEEE 802.3 Specs Supports 1gbps up to 100mbps before signal needs boosting Easy to implement Backward compatibility You can use 10BaseT and 1000BaseT at the same time but will only get 1gbps over network sections that support 1000BaseT

Question 39

1000BaseLX

Answer 39

Gigabit Ethernet LX = long distance fiber cabling Used to cable between companies or building

Question 40

1000BaseSX

Answer 40

Short Gigabit Ethernet Uses short wave length transmission over fiber

Question 41

10GBaseT

Answer 41

IEEE 802.3ac 10gbps Supports transmission over STP and UTP Up to 100m