Pace IT - Cables and Connections

Cables and connections.

Instructor, PACE-IT Program – Edmonds Community College

Areas of Expertise Industry Certifications

PC Hardware

Network Administration

IT Project Management

Network Design

User Training

IT Troubleshooting

Qualifications Summary

Education

M.B.A., IT Management, Western Governor’s University

B.S., IT Security, Western Governor’s University

Entrepreneur, executive leader, and proven manger with 10+ years of experience turning complex issues into efficient and effective solutions.

Strengths include developing and mentoring diverse workforces, improving processes, analyzing business needs and creating the solutions required— with a focus on technology.

Brian K. Ferrill, M.B.A.


– Internal cables and connections.

– External cables and connections.

– Display device cables and connections.

PACE-IT.

Internal cables and connections.Cables and connections.

Internal cables and connections.

– Floppy disk drive (FDD).» Contains 34 wires and the connector has 34 pins. » Up to two FDDs can be connected per cable, with the

higher priority going to the device connected after the twist in the cable.

– Parallel AT attachment (PATA).» PATA has two basic standards—the integrated drive

electronics (IDE) and enhanced integrated drive electronics (EIDE).

• IDE contains 40 wires and the connector has 40 pins. Up to two PATA devices can be connected per cable, with the priority being set by jumpers.

• EIDE contains 80 wires and the connector has 40 pins. It is backward compatible with IDE, but allows for higher throughput. Both have a maximum length of 18 inches.

– Serial AT attachment (SATA).» The cable contains seven wires with seven pins.» Only one device can be connected per cable, with the

priority being set in the Basic Input/Output System (BIOS).» The connector is L shaped.


External cables and connections.Cables and connections.

External cables and connections.

– Serial.» The most common cable and connection is the nine pin

connector.» The connector is often called a DB-9 or RS-232

connector (RS-232 is a serial communications standard).

– Parallel.» The most common cable and connection is the 25 pin

connector.» The connector is called a DB-25.

– Personal System/2 (PS/2) or miniDin6.

» It was most often used to connect a mouse and/or a keyboard to a PC.

» In most cases, the end not connected to the PC was hardwired into the actual device.

» It used a keyed six pin connector.



– Small Computer System Interface (SCSI).

» SCSI is a standard that involves how peripheral devices communicate with the PC. It has been implemented through various cables and connections.

» The most common cable used in implementing SCSI is a ribbon cable with two or more connectors on it.

» The most common SCSI connectors are: • 68-pin• 50-pin• 25-pin

– Sound connections.» In many cases, the connections to speakers, microphones,

and subwoofers is made with cables that plug into jacks on the back of the PC—providing an analog audio sound (each cable caries a single sound channel).

» The jacks are called tip ring sleeve (TRS) connectors.» The Sony/Phillips Digital Interconnect Format (S/PDIF)

connector will provide digital sound over a single cable.



– Network connections.» The registered jack (RJ) 45 (RJ-45) is the most

common modern connector for Ethernet networks.

» RJ-45s use an eight pin modular connector with up to eight wires being used as conductors (8P8C) to transmit data.

» The RJ-11 is the most common connector for telephony and is often used when networking over telephone wiring.

» RJ-11s use a six pin modular connector with up to four wires being used as conductors (6P4C) to transmit data.

» Coaxial cabling can also be used to make a network connection.



– Universal Serial Bus (USB) 1.x and 2.0.

» They use the same cables and connections and the connectors contain either four or five pins.

» Type A USB connectors carry power to the peripheral device as well as carrying data.

» Type B USB connectors do not provide power to the peripheral device.

» The maximum length of a USB cable is five meters.

– USB 3.x» A newer higher speed version of USB. » USB 3.x devices use a different type of connector for

the peripheral.» Earlier USB peripheral devices can use standard USB

cables to connect to a USB 3.x port.» The USB 3.x port on PCs is usually colored blue to

differentiate it from earlier USB versions.» As long as the cable matches the specifications, there

is not a maximum length for USB 3.x cables.



– IEEE 1394 (FireWire).» FireWire comes in two current standards:

• FireWire 400: uses a six conductor cable, with a maximum length of 4.5 meters.

• FireWire 800: uses a nine conductor cable and has a maximum length of 4.5 meters as well.

– External SATA (eSATA).» A standard that brings the speed of SATA outside of the

PC’s case.» eSATA is a type of combination port. It combines a USB

port with a SATA port.» It has not been approved by the organization that sets

the USB standards, nor by the organization that sets the SATA standards, so use at your own risk.


Display device cables and connections.Cables and connections.

Display device cables and connections.

– Analog.» Composite/RCA cable: looks like a TRS cable but can

carry an analog video stream. It results in low resolution.

» S-video cable: is a four pin cable that has better resolution than a composite cable.

» Component/RGB cable: is a combination of three cables, it breaks the color components of the video stream into three discrete channels. This allows for better resolution than S-video.

» Video Graphics Array (VGA)/DB-15/HD-15: is the analog display standard that uses a 15 pin D-subminiature connector. The pins are arranged in three rows of five, which are fitted into a D shaped shell.



– Digital.» Digital Visual Interface (DVI): is designed to carry

an uncompressed video stream resulting in a superior image.

• DVI-A (analog): it can only carry an analog stream.• DVI-D (digital): it can only carry a digital stream.• DVI-I (integrated): it can carry either a digital or

analog stream.» High-Definition Multimedia Interface (HDMI): is

designed to carry uncompressed digital video and audio across the same cable. It provides for a high transfer rate with very good quality. It comes in two standards:

• HDMI: the full size 19 pin standard.• Mini-HDMI: smaller but still contains 19 pins; it is not

as robust.» DisplayPort: is a nonproprietary standard for

transmitting high quality video from a device to a display. It uses a 20 pin connection. It also comes in various sizes, depending on the form factor of the device.


What was covered.Cables and connections.

Basic internal cables and connections include the FDD cable, a 34 pin 34 wire cable. For PATA devices, there is also the IDE cable (40 pin with 40 wires) and the EIDE cable (40 pin with 80 wires). SATA data cables are seven pin seven wire cables that have an L shaped connector.

Topic

Internal cables and connections.

Summary

There are many different kinds and types of external cables and connections. Some of these include: serial, parallel, PS/2, SCSI, sound connectors, network connectors, USB, IEEE 1394, and eSATA. Each has its own characteristics and purpose.


Display device cables and connections can be broken up into two basic categories—analog and digital. Analog connections include: RCA, S-video, component, and VGA. Digital connections include: DVI, HDMI, and DisplayPort.


THANK YOU!

This workforce solution was 100 percent funded by a $3 million grant awarded by the U.S. Department of Labor's Employment and Training Administration. The solution was created by the grantee and does not necessarily reflect the official position of the U.S. Department of Labor. The Department of Labor makes no guarantees, warranties, or assurances of any kind, express or implied, with respect to such information, including any information on linked sites and including, but not limited to, accuracy of the information or its completeness, timeliness, usefulness, adequacy, continued availability or ownership. Funded by the Department of Labor, Employment and Training Administration, Grant #TC-23745-12-60-A-53.

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Pace IT - Cables and Connections

Education

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