Comparing Plenum Ethernet Cables to Non-Plenum Alternatives

Ethernet cables are essential for connecting network devices in buildings and data centers. When choosing the right cable for your application, you’ll need to consider the plenum rating of the cable. Plenum-rated cables are designed to be installed in plenum spaces, which are air-handling spaces that are used to distribute air throughout a building. Non-plenum cables are not rated for use in plenum spaces. Here is a detailed comparison of plenum and non-plenum Ethernet cables to help you make the right decision for your needs.

Fire Safety

One of the most important differences between plenum and non-plenum cables is their fire safety rating. Plenum cables are required to meet the flame spread and smoke production requirements of the National Electrical Code (NEC). This means that they are less likely to spread fire or produce smoke in the event of a fire. Non-plenum cables are not required to meet these same requirements, so they may be more likely to contribute to the spread of fire or smoke.

Construction

Plenum cables are typically constructed with a flame-retardant jacket made of materials such as PVC or LSZH (low-smoke, zero-halogen). This jacket helps to prevent the spread of fire and smoke. Non-plenum cables may not have a flame-retardant jacket, or they may have a jacket made of materials that are not as effective at preventing the spread of fire and smoke.

Performance

Plenum cables are typically made with higher-quality materials than non-plenum cables. This results in better performance, including higher bandwidth and lower signal loss. Non-plenum cables may not have the same level of performance, especially at higher frequencies.

Cost

Plenum cables are typically more expensive than non-plenum cables. This is due to the higher quality materials and construction required to meet the NEC’s fire safety requirements. Non-plenum cables may be a more cost-effective option for applications where fire safety is not a major concern.

Applications

Plenum cables are required for use in plenum spaces, such as air-handling spaces, ductwork, and cable trays. Non-plenum cables can be used in non-plenum spaces, such as offices, classrooms, and data centers.

When choosing between plenum and non-plenum Ethernet cables, it is important to consider the following factors:

The fire safety requirements of the application

The performance requirements of the application

The cost of the cables

The intended use of the cables

By carefully considering these factors, you can make the right decision for your specific needs.