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Nederlands (Nederland)Everything you need to know about Twisted Pair network cables
Twisted pair network cables – Which one should you choose for your application?
You are setting up or expanding a network, but suddenly you are faced with a maze of cabling options. Choosing the right network cable may seem like a small decision, but it can have a huge impact on the stability and performance of your network.Twisted pair cables are the most widely used type of network cable for data communication in both private and professional environments. Whether you are setting up a home office, expanding a corporate network, or managing a data center, selecting the right cable is crucial for optimal performance and a future-proof infrastructure.
What is a twisted pair cable?
A twisted pair network cable consists of multiple pairs of copper wires twisted around each other. This design reduces electromagnetic interference (EMI) and crosstalk between the wire pairs. The result? A stable, interference-free, and fast network connection.
The range of twisted pair cables includes several categories:
- Cat5e: Supports 1 Gigabit distance up to 100 meters
- Cat6: Delivers 1 Gigabit over distances up to 100 meters
- Cat6A: Guarantees 10 Gigabit across the full 100 meters
- Cat7/Cat8: Designed for applications with speeds up to 40 Gigabit
In general, higher categories support higher data speeds and bandwidth, depending on the required performance, installation distances, and future scalability plans.
Applications of twisted pair cables
Twisted pair cables form the backbone of modern wired networks across different environments. Common applications include:
- Network connections between computers, switches, routers, and access points
- PoE (Power over Ethernet) applications such as IP cameras and VoIP phones
- Industrial automation and machinery
- Data center connections and 19” rack installations
- Temporary networking solutions at trade shows or in the field
Advantages of twisted pair cables
- Versatile: Suitable for a wide range of applications, from offices to industrial sites and data centers
- Cost-efficient: More affordable than fiber optics for short to medium distances
- Flexible: Available in different lengths, diameters, and designs
- PoE support: Delivers both data and power in one cable
- Strong shielding: Enhanced protection against interference thanks to twisting and optional shielding layers
Cable selection guide: Choosing the right network cable for your situation
Because the use cases are so diverse, we have created an overview with specific recommendations and alternatives for different scenarios.
Office Environments and Workstations (laptops and docking stations)
In office environments, twisted pair cables are used to connect devices such as laptops and docking stations to the network.
Recommended cable: Slimline DC7xxx, shielded cable
- Slim design: neat appearance at the workplace and easy to route
- Available in multiple colours: always a colour that matches the workspace
- Shielded cable: reliable when used near other devices
Alternatives:
- Slimline 360° angled (DD19xx): perfect for connections where space is limited, such as behind a monitor or under a VoIP phone
Recommended application: workstations that require a reliable connection with limited space behind equipment. - Standard cable (FB30xx): a non-slimline version, suitable for longer lengths or workstations that are further away from the network room
Recommended application: workstations that require a reliable connection where a longer cable is needed or the distance to the network room is greater.
Tip: Choose cables that are 10–20% longer for extra flexibility with sit-stand desks and monitor arms
Server Rooms and Data Centers (19” racks and patch cabinets)
In 19” racks and patch cabinets, it is important to use the available space as efficiently as possible, especially in high-density setups where connections are very close together. Clear and organized cabling through good cable management is crucial. Using colour coding, limiting excess cable length, and opting for thinner cables all help maintain order.
Recommended cable: Slimline DC7xxx
- Available in multiple colours: different applications can each have their own colour
- Slim design: saves space, improves airflow, and enhances clarity
- Shielded: prevents interference, particularly important in high-density setups and cable bundles
Alternatives:
- Slimline 90° angled (DAx9xx): the angled network connector allows for even tighter cable management. Available in black
Recommended application: 19” racks and patch cabinets where extremely neat cable management is important. - Standard cable (FB7xxx): this is not a slimline version; the thicker cable provides more slack, useful for longer runs and bridging greater distances
Recommended application: 19” racks and patch cabinets where longer cable runs are needed, ideal for scenarios approaching the maximum supported length of 100 meters.
Network Expansion (IP cameras & access points)
For expanding the network, for example to connect an additional camera or access point, ACT (pre-assembled) cables are ideal. The advantage of these cables is that you can expand the network yourself without the need for an installer. Use ACT twisted pair prefab or patch cables to easily connect additional devices..
Recommended cable: Prefab extension cable FB01xx (20m–90m)
- Equipped with RJ45 connector and RJ45 port: allows connection to existing cabling without tools or additional coupling blocks
- Solid copper core: suitable for distances up to 90 meters
- Supports PoE++ (up to 100W): IP cameras and access points can be powered through the network cable
- Highest CPR classification (B2ca): approved for use through walls, above suspended ceilings, even in buildings with the strictest fire safety requirements
Alternatives:
- Outdoor cable (FB85xx): UV and oil-resistant PUR jacket, suitable for outdoor use
Recommended application: Outdoor network connections - Prefab cable with two RJ45 connectors: Unlike other prefab cables, which have one connector and one port, this cable has an RJ45 connector on both ends
Recommended application: For connecting devices to an RJ45 port on a switch or patch panel. - MTPL extension cable (FB15xx): An alternative to the prefab extension cable, suitable for lengths up to 10 meters. Lower PoE rating and fire classification, but thinner and more flexible
Recommended application: Expanding building cabling in a corporate network by the in-house IT department or technical service team.
Environments with Electromagnetic Interference (EMI)
In technical or industrial environments with electromagnetic interference, an extra shielded cable is necessary to prevent disturbances.
Recommended cable: Double-shielded cable (FB30xx)
- Provides excellent protection against (electromagnetic) interference
- Ensures stable connections in critical applications
- Future-proof specifications
Alternatives:
- Outdoor cable (FB85xx): UV and oil-resistant PUR jacket, suitable for outdoor use
High-Power PoE++ Applications
An increasing number of devices are powered not only with data but also with electricity through twisted pair cables. In the future, even higher-power devices are expected to be powered this way. Support for PoE (Power over Ethernet) is increasing, as it simplifies network infrastructure: a separate power connection is no longer required. At the same time, the energy consumption of these devices is rising, for example IP cameras with pan/tilt functions or WiFi access points supporting higher speeds. For higher power levels, especially with prolonged usage, it is crucial to use cables designed for this purpose to ensure safety.
Recommended cable: PowerPatch (FB40xx / FB49xx)
- Supports the highest PoE++ classification (up to 100W) and speeds up to 10G
- IDC connectors: optimal connection for 4PPoE 100W
- Available in black and gray
Alternatives:
- Prefab cable (FB00xx): Supports the highest PoE rating (100W) with speeds up to 10G over distances up to 90 meters. Suitable as building cabling in environments with the strictest fire safety requirements
Industrial applications and mechanical engineering
For use in industrial applications or in applications in or around machines, a robust cable is required that can withstand harsh environmental influences. Think of:- Interference
- Resistance to oil and other chemicals
- Repetitive movements (energy chains, moving arms)
- Vibrations
- Temperature changes with large differences
Recommended cable: SC48xx
- IP67 sealing against moisture and dust
- Remains flexible with movement, suitable for dynamic applications
- Resistant to extreme conditions such as heat, cold and vibration
Alternatives:
- No equivalent alternatives in this segment
Cable selection guide: Overview
Cable Categories: Which One to Choose?
The performance of a twisted pair cable depends largely on its category. Each category supports a maximum speed and distance. Below is an overview:
Shielding and sheath selection: for stable and secure network operation
In environments with electromagnetic interference (EMI), such as technical rooms, factory halls or data centers, shielding is essential for a stable connection.
Twisted pair network cables are available with different shielding configurations. Each type provides a specific level of protection against interference and crosstalk:
Twisted pair network cables are available with different shielding configurations. Each type provides a specific level of protection against interference and crosstalk:
U/UTP
- U/UTP: No shielding
- Only twisted veins
- Suitable for interference-free environments
F/UTP
- F/UTP: Foil around the entire cable
- Basic shielding against EMI
U/FTP
- U/FTP: Each twisted pair is shielded with foil
- Good protection against mutual interference (crosstalk)
SF/UTP
- SF/UTP: Foil and fought screening, without shielding per pair
- High protection against external influences
S/FTP
- S/FTP: Braiding around the cable and foil around each pair of wires
- Maximum shielding, ideal for heavy electromagnetic loads
In addition to shielding, the sheath of the cable also plays an important role in the safety of your installation.
Cables with an LSZH (Low Smoke Zero Halogen) sheath produce hardly any smoke and no toxic gases in the event of a fire, which significantly increases safety in buildings.
LSZH is often required in public buildings, data centers, and areas with strict fire safety requirements.
When choosing the right cable, it is therefore important to look at both the electrical environment (EMI) and the fire safety requirements (LSZH).
Need advice?
Are you still unsure about the right cable choice? Our specialists are ready to advise you on the best twisted pair solution for your project, whether it concerns standard patch cables, customization, outdoor applications or industrial environments. Contact us or take a look at our range of twisted pair cables right away.