Net+ 2.2 Lesson

Twisted Pair Fact

Twisted pair is very widely deployed as horizontal cabling that links a work area to a patch panel.

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Twisted Pair

Coaxial

Ethernet Plugs

Patch Panel

• Use: Commonly used for network cabling in LANs due to its low cost, flexibility, and good performance

• Categories: Comes in various grades, such as Cat5e for up to 1 Gbps and Cat6a for up to 10 Gbps

• Installation Tips: Avoid bending sharply and keep away from sources of EMI for optimal performance

• Definition: UTP is a type of cabling that consists of pairs of insulated copper wires twisted together without additional shielding

• Structure: Typically includes 2 to 1800 twisted pairs encased in an outer plastic jacket

• Interference: Lacks internal shielding, offering minimal protection against electromagnetic interference (EMI)

Unshielded Twisted Pair (UTP)

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Definition: UTP is a type of ​

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that consists of ​

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of insulated copper wires ​

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together without additional shielding

Structure: Typically includes ​

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twisted pairs encased in an outer ​

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jacket

Dropdown

Interference: Lacks ​

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shielding, offering minimal protection against ​

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Use: Commonly used for network cabling in ​

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due to its l​

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, flexibility, and ​

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Dropdown

Categories: Comes in various ​

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, such as ​

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for up to 1 Gbps and ​

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for up to 10 Gbps

Installation Tips: Avoid bending ​

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and keep away from sources of EMI for ​

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performance

• Categories:

  • Performance Grades: Available in Cat5e, Cat6, Cat7, etc., for varying speeds and frequencies.

• Installation:

  • Careful Handling: Shielding must be grounded properly to be effective.

  • Avoid Sharp Bends: To maintain cable integrity and performance.

• Structure:

  • Twisted Copper Wires: Pairs of insulated copper wires twisted together.

  • Conductive Shielding: Each pair wrapped in foil or braided shield.

• Interference:

  • EMI Protection: Shields block external electromagnetic interference.

  • Reduced Crosstalk: Twisting reduces signal interference between pairs.

• Use:

  • High-Interference Areas: Ideal for environments with heavy electrical noise.

  • Sensitive Data Transmission: Preferred for secure or private network installations.

Shielded Twisted Pair (STP)

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Options (6)

Conductive Shielding: Each pair wrapped in foil or braided shield.

EMI Protection: Shields block external electromagnetic interference.

Reduced Crosstalk: Twisting reduces signal interference between pairs

High-Interference Areas: Ideal for environments with heavy electrical noise

Sensitive Data Transmission: Preferred for secure or private network installations

Performance Grades: Available in Cat5e, Cat6, Cat7, etc., for varying speeds and frequencies.

Organize these options into the right categories

Structure

Interference

Use

Categories

Open Ended

What is the difference between UTP and STP cabling?

Explore the site on the next slide for different twisted pair types.

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WAIT! Before moving on, figure out your favorite cable type.

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Which cable type interested you the most?

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Rubber Boot

UTP/STP

RJ45 connector

• There are also GG45 and TERA connectors, associated with ISO Class F and Class II cabling. GG45 has a similar form factor to RJ45 but has four conductors in the corners. TERA connectors have a completely different form factor.

• RJ45 plugs have a plastic retaining clip. This is normally protected by a rubber boot. This type of cable construction is also referred to as snagless.

Ethernet connectors

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Label each part

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RJ45 connector

UTP/STP

Rubber Boot

Match

Match the connectors

RJ45

RJ11

GG45

TERA

• RJ45

• RJ11

• GG45

• TERA

Multiple Choice

Which cable connector has more bandwidth capabilities?

• RJ45

• RJ11

Categorize

Options (8)

6 positions, 4 connectors

8 positions, 8 connectors

phone and modem

computer networking

24Mbps

10 Gbps over Ethernet

ignore 1

ignore 2

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RJ11

RJ45

ignore 1

ignore 2

• Usage: Installed in plenum spaces (a void in a building designed to carry heating, ventilation, and air conditioning (HVAC) systems) used for air circulation in HVAC systems.

• Material: Made of materials like PVC or FEP that are fire-resistant and emit fewer toxic fumes.

• Safety: Meets higher fire safety standards due to the potential of air circulation spreading smoke.

• Cost: Generally, more expensive due to the higher material and safety standards.

Plenum Cable

• Riser-Rated Cable (CMR):

  • Usage: Used in vertical spaces (risers) that run between floors to distribute utilities.

  • Material: Fire-resistant but not to the same degree as plenum-rated cables.

  • Safety: Designed to prevent the spread of fire between floors, less stringent than plenum requirements.

  • Cost: More cost-effective than plenum-rated cables.

Riser Cable

Categorize

Options (10)

installed in spaces designed to carry HVAC

emits fewer toxins

higher fire safety standards

more expensive

installed vertically

fire-resistant, low grade

prevents fires from spreading, low grade

more cost effective

ignore 1

ignore 2

Organize these options into the right categories

Plenum

Riser

ignore1

ignore 2

Coax is not widely deployed except in CATV and datacenters (twinax). The RG specification codes come from their page numbers in the Radio Guide manual, the original military specification (Mil-Spec) for coax cables, which is no longer in use.

Coax Connectors

BNC

TNC

SMA

Multiple Choice

A company is setting up a network in an industrial environment where machinery often causes significant electromagnetic interference. The network requires a cabling solution that can handle high-speed data transfer while also being resistant to this interference. The cable will be used to connect servers within the same data center, and the runs will not exceed 100 meters.

• UTP

• STP

• Coax

• Fiber

Poll

I can explain UTP.

• Yes

• No

Poll

I can explain STP.

• Yes

• No

Poll

I can explain Ethernet Connectors.

• Yes

• No

Poll

I can explain Plenum rated cables.

• Yes

• No

Poll

I can explain Riser rated cables.

• Yes

• No

Word Cloud

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