Networking
Eight conductors, four pairs: understanding Ethernet cable
The image visually separates the eight conductors of a twisted-pair cable to show their colors.
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Discover what is behind the connection.
Fiber optics, cabling, testing and technology explained through images and individual articles.
20 articles · English and Spanish
Installation
T568B: color order and consistent termination
The infographic shows the color assignment for the eight positions of a T568B termination.
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Networking
How pairs participate in Ethernet transmission
The infographic represents the four pairs in an Ethernet cable and the movement of data.
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Networking
What PoE is and what it changes in an installation
PoE stands for Power over Ethernet: power and data through compatible Ethernet cabling.
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Networking
PoE cable pairs: an important clarification
The image states that PoE uses spare pairs. That statement must not be treated as a general rule.
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Networking
PoE devices: cameras, Wi-Fi and phones
The infographic groups IP cameras, access points, VoIP phones and other devices that can receive power over Ethernet.
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Installation
What distinguishes a well-documented cabling installation
The image presents blue patch cords organized in a rack and highlights termination, organization and testing.
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Testing
Network tools: verification is not certification
The image brings together termination tools and test instruments, with a visual pass indication.
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Security
PA-5410: recognizing firewall interfaces
The infographic shows front and rear views of a Palo Alto Networks firewall and identifies connections and components.
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Organization
Copper patch panels: from horizontal cable to switch
The image distinguishes front ports from rear terminations and shows a central distribution point.
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Organization
Fiber patch panels: accessible, identified connections
A panel brings optical connections together at a distribution point that can be maintained and documented.
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Splicing
Fiber fusion splicing: from preparation to protection
The fusion splicer joins prepared fibers; the job also includes protecting and organizing the joint.
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Testing
OTDR: understanding a fiber link trace
A trace shows how the measured optical signal changes along the fiber.
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Testing
VFL: what a visual fault locator can show
Visible light helps check continuity and locate some faults in accessible sections.
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Security
UniFi Protect: the equipment behind a camera installation
A surveillance system combines cameras, networking, power and recording capacity.
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Splicing
Understanding a fusion splicer display
Alignment images and machine warnings help evaluate the splicing process.
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Splicing
Ribbon preparation and holders for mass fusion splicing
A holder keeps multiple fibers aligned during preparation and transfer to the fusion process.
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Organization
Organizing fiber in racks and patch panels
An organized rack makes connections easier to trace and equipment easier to access.
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Installation
Fiber routing: pathways, supports and bends
The cable pathway is part of network design, from the building entrance to the rack.
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Organization
Splice trays: organizing and protecting fiber
A splice tray brings fibers, service loops and splice protectors together in an organized space.
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