Network Cabling Flashcards

A phone cable is used to connect a PC to a phone jack in a wall outlet to establish a dial-up internet connection.

RJ11

Is has two pairs of twisted cable (a total of 4 wires). What connector would be used?

RJ11

Cat 3 is designed for use with 10 megabit Ethernet or 16 megabit token ring. What connect would be used?

RJ45

What cable is used for 10 megabit Ethernet?

Cat 3

Cat 5 supports 100 megabit Ethernet and ATM networking. Cat 5 specifications also support gigabit (1000 Mb) Ethernet. What connector would be used?

RJ45

What cable is used for 100 megabit, gigabit, and ATM networking?

Cat 5

Cat 5e is similar to Cat 5 but provides better EMI protections. It supports 100 megabit and gigabit Ethernet. What connector would be used?

RJ45

What cable is used for 100 megabit and gigabit Ethernet, but provides better EMI?

Cat 5e

Supports 10 Gbps Ethernet and high-bandwidth, broadband communication. often include a solid plastic core that keeps the twisted pairs separate and prevents the cable from being bent too tightly.

Cat 6

What cable is used for 10 Gbps Ethernet, high-bandwidth, and broadband?

Cat 6

Cat 6a is designed to provide better protection against EMI and crosstalk than Cat 6 cabling. Cat 6a provides better performance than Cat 6, especially when used with 10 Gbps Ethernet. What connector would be used?

RJ 45

Protects against EMI and crosstalk better than Cat 6 cabling.

Cat 6a

• Has 4 connectors• Supports up to 2 pairs of wires• Used primarily for telephone wiring

RJ11

• Has 8 connectors• Supports up to 4 pairs of wires• Used for Ethernet and some token ring connections

RJ45

Uses the same connector as an RJ45, but it is used for specific WAN connections, such as a T1 line, an is wired differently.

RJ48c

10Base2 Ethernet networking (also called Thinnet)

RG-58

Cable TV and cabling networking

RG-59

Cable TV, satellite TV, and cable networking

RG-6

Ohms for RG-58

50 ohms

Ohms for RG-59 and RG-6

75 ohms

Ohms for RG-8

50 ohms

• Twisted onto the cable• Used to create cable and satellite TV connections• Connect cable modem to a broadband cable connection

F-Type connector

• Molded onto the cable• Used in 10Base2 Ethernet networks

BNC connector

• Is a DB15 serial connector• Used in 10Base5 Ethernet networks

AUI

Data transfers through the core using a single light ray (the ray is also called a mode).

Single Mode Fiber

The core diameter is around 10 microns.

Single Mode Fiber

At distances up to 3 km and delivers data rates up to 10 Gbps.

Single Mode Fiber

Cable lengths can extend a great distance.

Single Mode Fiber

Data transfers through the core using multiple light rays.

Multimode Fiber

The core diameter is around 50 to 100 microns.

Multimode Fiber

At distances of under 2 km, and delivers data rates up to 1 Gbps.

Multimode Fiber

Cable lengths are limited in distance.

Multimode Fiber

ST Connector

SC Connector

LC Connector

MT-RJ Connector

FC Connector

Fiber Coupler

Used with single moved and multimode cabling.

• ST Connector• SC Connector• LC Connector• MT-RJ Connector

Has a keyed, bayonet-type connector

ST Connector

Called a push-in and twist connector

ST Connector

Nickel plated with a ceramic ferrule to ensure proper core alignment and to prevent light ray deflection

ST Connector

Called a push-on/pull-off connector type that uses a locking tab to maintain connection.

SC Connector

Composed of plastic connector with a locking tab, similar to the RJ45 connector.

LC Connector

A single connector with two ends keeps the two cables in place.

LC Connector

Is half the size of other fiber optic connectors.

LC Connector

Composed of a plastic connector with a locking tab.

MT-RJ Connector

Uses metal guide pins to ensure that it is properly aligned.

MT-RJ Connector

A single connector with one end holds both cables.

MT-RJ Connector

Used ONLY with single mode cabling.

FC Connector

Uses a threaded connector.

FC Connector

Designed to stay securely connected in environments where it may experience physical shot or intense vibration.

FC Connector

Used in optical fiber systems with one or more input fibers and one or several output fibers.

Fiber Coupler

Power distribution potentially depends on the wavelength and polarization.

Fiber Coupler

Wavelength-sensitive couplers are used as multiplexers.

Fiber Coupler

Straight-through

Crossover

GW, G, OW, BW, B, O, BrW, Br?

T568A

OW, O, GW, B, BW, G, BrW, Br?

T568B

T568A

GW, G, OW, B, BW, O, BrW, Br

T568B

OW, O, GW, B, BW, G, BrW, Br

EMI

Electromagnetic Interference

RFI

Radio Frequency Interference

Is interference that is caused by signals within the twisted pairs of wires.

Crosstalk

Crosstalk is measured on the same end as the transmitter.

NEXT

NEXT

Near end crosstalk

Crosstalk measured on the opposite end from the transmitter.

FEXT

FEXT

Far end crosstalk

Is introduced from adjacent, parallel cables. (ex. a signal sent on one wire causes interference on a wire that is within a separate twisted pair cable bundle)

Alien Crosstalk

Loss of signal strength from one end of a cable to the other. This is also known as dB loss.

Attenuation

The measure of resistance within the transmission medium.

Impedance

An electrical _______ occurs when electrical signals take a path other than the intended path.

Shorts

Is when a cut in the wire prevents the original signal from reaching the end of the wire.

Open circuit

Cable is caused by incorrect wire positions on both connectors. Several wiring problems might exist.

Miswired

When a cable is wired using one standard on one end and another standard on the other end, creating a crossover cable.

Reverse Connection

Refers to the matching of wire with a pin on one end with the same pin on the other end.

Wiremapping

Condition is when a single wire in two different pairs is reversed at both ends.

Split Pair

Occurs when an incompatible or incorrect connector is used.

Incorrect termination or bad connector