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Understanding the Difference Between Data Cabling and Standard Wiring

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Arcomm Communications Corporation
462 West Main Street, Unit 3
Hillsboro, NH 03244

Understanding the Difference Between Data Cabling and Standard Wiring

What’s the Difference Between Data Cabling and Standard Wiring?

When setting up a new office, upgrading your infrastructure, or expanding your building’s technology, it’s important to understand the distinction between data cabling and standard electrical wiring. These two systems serve very different functions — and if you get them wrong, your business could suffer from dropped calls, lagging internet, and downtime.

At Arcomm Communications, we specialize in designing and installing structured cabling systems for businesses across New Hampshire. Here’s what you need to know to make the right decision for your facility.

Data Cabling Installation Diagram

🔌 What Is Standard Wiring?

Standard wiring refers to the electrical system that powers your lights, appliances, outlets, and equipment. It’s high-voltage and designed to deliver electricity safely and efficiently.

  • Copper or aluminum conductors
  • Heavy insulation to handle voltage
  • Connections to breaker panels and outlets
  • Compliance with the National Electrical Code (NEC)

Standard Electrical Wiring

🧠 What Is Data Cabling?

Data cabling is the backbone of your network infrastructure. It carries low-voltage signals that allow devices like phones, computers, and servers to communicate effectively. At Arcomm, we install:

  • Cat5e / Cat6 / Cat6A cabling for Ethernet networks
  • Fiber optic cabling for long distances or high speeds
  • Backbone infrastructure for data closets and server rooms

Structured Cabling Layout

📊 Data Cabling vs. Standard Wiring: Key Differences

Feature Standard Wiring Data Cabling
Purpose Electrical power Digital communication
Voltage High voltage (120V/240V) Low voltage
Cable Type THHN, Romex Cat5e, Cat6, Cat6A, Fiber
Application Lights, outlets, appliances Computers, VoIP, cameras

🔗 Related: Structured Cabling Services in NH »

 

🧱 Why Structured Cabling Matters

  • Scalability – Add users, phones, or devices with ease
  • Reduced Downtime – Simplified maintenance and fewer errors
  • Professional Look – Neat, labeled, organized
  • Future-Ready – High bandwidth support

 

🧵 Ethernet Cable Color Code Standards Explained

When terminating Cat5e, Cat6, or Cat6A Ethernet cables, you’ll notice 8 individual wires (4 twisted pairs), each with a specific color. These colors help ensure consistency in how cables are wired on both ends. Following the correct standard is critical for performance and troubleshooting.

The two primary standards used in structured cabling are:

  • TIA/EIA-568A

  • TIA/EIA-568B

Both are functionally equivalent for most Ethernet networks, but 568B is more commonly used in commercial installations in the U.S.


📊 Ethernet Cable Color Code Chart (TIA/EIA Standards)

Pin # 568A Color 568B Color Pair #
1 White/Green White/Orange Pair 3
2 Green Orange Pair 3
3 White/Orange White/Green Pair 2
4 Blue Blue Pair 1
5 White/Blue White/Blue Pair 1
6 Orange Green Pair 2
7 White/Brown White/Brown Pair 4
8 Brown Brown Pair 4

🧰 What’s the Difference Between 568A and 568B?

  • Wire Pairing: The actual pairs are the same — only the color order changes.

  • Compatibility: You must use the same standard on both ends to make a straight-through cable.

  • Crossover Cables: A 568A on one end and 568B on the other makes a crossover cable, used in older setups to directly connect devices without a switch.


💡 Pro Tips from Arcomm Communications:

  • Always label and document which wiring standard you used.

  • For new structured cabling installs, we recommend TIA-568B unless there’s a specific legacy reason to use 568A.

  • Use a cable tester to verify pair continuity and correct order after termination.


📌 When Would You Use Each?

Use Case 568A 568B
Residential wiring (some gov. specs)
Commercial and VoIP systems ⚠️ Sometimes ✅ Standard
Legacy compatibility ⚠️ Sometimes
Crossover cable creation

Cabling Installation Team

🔌 How Data Cabling Supports Your Business

Structured cabling supports:

🌐 External References

✅ Choose the Right Cabling Partner in New Hampshire

Since 1985, Arcomm Communications has been New Hampshire’s trusted name in structured cabling, VoIP, and low-voltage network solutions. Let our experience and dedication to quality power your business infrastructure.

📞 Let’s Talk

📍 Arcomm Communications – Hillsboro, NH
📞 (603) 464-4600
📧 sales@arcomm1.com
🌐 www.arcomm1.com/structured-cabling