Connectors

Question 1

For which implementations might you find an RJ-11 connector being used?

Answer 1

ADSL Internet service
A phone line
A modem

Question 2

Which USB connector type is reversible?

Answer 2

C

Question 3

For which type of device would you most likely use an eSATA connector?

Answer 3

Data interface for an external hard drive

Question 4

A BNC connector is most commonly found in use with which type of cable?

Answer 4

Coaxial

Question 5

Which connector is most commonly associated with an RS-232 interface?

Answer 5

DB9

Question 6

Which device would most likely use a DB9 connector?

Answer 6

Mouse

Question 7

In which implementation would you most likely find an RG6 connector?

Answer 7

Connected to a digital TV

Question 8

For which type of device would you most likely use a Molex connector?

Answer 8

Power interface for a CD-ROM drive

Power interface for an internal hard drive

Question 9

Which Apple devices would support a Lightning connector?

Answer 9

iPad 4

iPhone 5

Question 10

SCSI device connectors would more likely be found in use with which type of system?

Answer 10

Servers

Question 11

RJ

Answer 11

Registered Jack

Question 12

Traditional connector for a phone cable

Contains four internal wires in two sets of twisted pairs

Answer 12

RJ-11

Question 13

Traditional connector for an Ethernet cable

Contains eight wires in four sets

Answer 13

RJ-45

Question 14

_ characteristics
o Six position, four connector configuration (it can accommodate six wire. There are six little channels in the physical connector, only four are used for a phone connection) – known as 6P4C configuration.
o Primary used for voice/data applications
 Phones
 Modems
 ADSL lines
o 24 Mbps maximum bandwidth

Answer 14

RJ-11

Question 15

_ characteristics
o	Eight position, eight connector configuration – known as 8P8C
o	Primarily used for data applications
	Ethernet networks
o	10 Gbps maximum bandwidth

Answer 15

RJ-45

Question 16

RS

Answer 16

Recommended Standard

Question 17

o Defines a standard for serial communication or transmission of data one bit at a time
o Most commonly implemented with DB9 (stands for D sub and nine pins in two rows)
o Can be used with other connectors depending on the device, such as printers
o Often referred to as a “com port” (com for communications)

Answer 17

RS-232

Question 18

_ characteristics
o	Used most commonly for devices with simple configuration or minimal data transfer because it was just one bit at a time
	Mouse
	UPS (Uninterruptible Power Supply)
	External modem
	Early PDA (synchronization)
o	Defines the electrical characteristics and timing of signals
o	Superseded by USB

Answer 18

RS-232

Question 19

BNC

Answer 19

Bayonet Neil-Concelman Connector

Question 20

o Traditionally used with coaxial cable
o Used in early Ethernet networks (was known as 10Base2 – also known as “Thinnet”)
o Twist-lock ends
o Sometimes referred to as a “British Naval Connector”

Answer 20

BNC

Bayonet Neil-Concelman Connector

Question 21

_ characteristics
o Dependent on the equipment, but commonly used with Radio Frequency (RF) equipment
 Radio
 Testing or diagnostic equipment
 Any device carrying video signals (eg. Closed circuit tv system)
o Designed to match the resistance or impedance characteristic of the cable being used
 Impedance of 50 or 75 ohms

Answer 21

BNC

Question 22

RG

Answer 22

Radio Guide

Question 23

 Traditionally used with coaxial cable
 Lighter gauge wire
 Thinner insulation
 Less shielding

Answer 23

RG-59

Question 24

 Traditionally used with coaxial cable
 Heavier gauge wire
 Thicker insulation
 More shielding

Answer 24

RG-6

Question 25

_ characteristics  Used most commonly for cable TV in earlier installations or closed-circuit TV  The smaller conductor could not achieve the same signal quality as RG-6  Its lesser shielding was adequate for the lower MHz value of analog transmissions, but not for higher GHz levels  Poor choice for modern digital TV or Internet

Answer 25

RG-59

Question 26

_ characteristics  Used most commonly for more modern (digital) cable TV or internet service (cable modems)  The larger conductor provides better signal quality  Improved shielding was adequate for the higher GHz levels of digital signals  Good choice for modern digital TV or internet

Answer 26

RG-6

Question 27

o The most widely used connection for current peripheral devices o Superseded many different interface connections  Mouse/keyboard  Printer/scanner/multi-function  External storage  Game controller  Camera

Answer 27

USB

Question 28

_ characteristics o Designed to carry both data and power over a single connection o Currently three generations  1.x  2.0  3.x o Hot-pluggable (you can just plug it in and unplug it anytime without having to shut anything down) any device can use any receptacle that fits, little to no device configuration

Answer 28

USB

Question 29

o Most commonly implemented with simple, serial devices  Mouse  Early PDAs o Management interface for com ports (RS-232 devices)  UPS  Routers

Answer 29

DB-9

Question 30

SCSI

Answer 30

Small Computer System Interface

Question 31

o Uses a variety of connectors depending on the device o Tend to be fairly large o Connector might be two inches wide o Tend to have high pin counts (sometimes 50 or 60) o is bus technology – devices can connect to a central bus and are “daisy chained” o Controlled by a host controller, typically built into the motherboard or as an expansion card

Answer 31

SCSI

Question 32

_ characteristics o Most commonly used as an interface for hard drives, but supports a wide range of other peripheral devices o SCSI has undergone a number of revisions to improve its specifications  Fast, Ultra and Wide – versions 1, 2, and 4 o Able to support up to eight devices (including the host controller) in a daisy-chain in early implementations, 16 in later revisions o A common interface in server systems that required more drives or peripherals, not as common in client systems

Answer 32

SCSI

Question 33

eSata

Answer 33

External Serial Advanced Technology Attachment

Question 34

_ characteristics o An alternative for external drives  Faster data transfer rates than USB 2 or FireWire  Requires a separate power connector o Uses a point to point interface  Unlike a bus, no daisy chaining of devices  Multiple connections are typically available, however would likely require an expansion card o USB 3.0 matches or exceeds the transfer of eSATA

Answer 34

eSATA

Question 35

``` o Power connectors for internal PC components o Varying connectors dependent on the device  Hard drives  Optical drives  Floppy drives  Motherboard  CPU or graphics card  Fans ```

Answer 35

Molex

Question 36

_ characteristics o 4-pin connector (single row) most commonly used for hard drives or optical drives o 4-pin connector (2 rows) most commonly used for CPU or graphics card o 20-pin connector most commonly used for motherboard o Only used for power, no data o Almost always used internally only o Molex connections are extended directly from the main power supply of the PC

Answer 36

Molex