A reliable network link needs compatible cable and connection hardware, installed correctly. A high cable frequency rating alone does not establish the performance of the finished link. When selecting a Category 7A cable, check the complete transmission path.
Our S/FTP range includes solid-conductor cables for fixed wiring and stranded versions for equipment connections. The two constructions serve different purposes.
What S/FTP describes
An S/FTP cable has an overall braid screen and a separate foil screen around each pair. This describes the screening arrangement, but does not establish the bandwidth of a complete connection.
Sockets, plugs and connecting leads are part of the link too. Screen termination and compliance with the installation requirements also matter. The category of the fixed cable does not replace verification of the finished link.
Category 7A and extended frequency ratings
IEC 61156-5 gives Category 7A a maximum referenced frequency of 1000 MHz. Figures of 1200 or 1500 MHz describe extended properties of the particular version, rather than a new cable category. Solid-conductor XLAN 1000 and both XLAN flex versions are Category 7 cables. The table includes them for comparison with their specified frequencies. These Category 7 versions are intended for applications up to Class F (600 MHz). IEC 61156-5
Comparing the cable versions
The table lists the category, conductor construction and specified frequency of each version. The number in the product name refers to frequency, not cable category.
| Version | Category | Conductor | Frequency |
|---|---|---|---|
| SLAN 1000 | 7A | AWG 23/1 | 1000 MHz |
| XLAN 1000 | 7 | AWG 23/1 | 1000 MHz |
| XLAN 1200 | 7A | AWG 22/1 | 1200 MHz |
| XLAN 1500 | 7A | AWG 22/1 | 1500 MHz |
| XLAN flex 1000 | 7 | AWG 26/7 | 1000 MHz |
| XLAN flex 600 | 7 | AWG 26/7 | 600 MHz |
Here, /1 identifies a solid conductor and /7 a conductor made from seven wires. A higher frequency rating does not promise a proportionally higher data rate. The data cable data sheets describe the individual versions and their service conditions.
Choose the required fire class
Solid-conductor XLAN 1000, 1200 and 1500 are listed with FRNC sheaths in B2ca, Cca and Dca versions. Diameter, cable weight and fire load vary by fire class, so use the data sheet for the version you need. For Cca, also specify the required d1 or d2 version. These fire classes do not automatically apply to the flex cables.
Fixed wiring or equipment connection?
The solid versions are intended for fixed building cabling. The flex versions are intended for equipment connections and patch applications. A stranded conductor alone does not qualify a cable for continuous movement in a drag chain.
Check that plugs and connecting modules accept the conductor construction, conductor size and insulated core diameter. AWG 22/1 and AWG 26/7 are not interchangeable at every termination.
Conditions on an industrial route
A factory cable route may pass close to drives, cross between buildings or enter a damp area. The design needs to address the installation location, electromagnetic influences and the required equipotential bonding. Pulling loads, bending radius and temperature during installation also affect the choice.
Permitted lengths and required separation distances depend on the transmission system and route. Define the network application first, then select compatible components.
For an enquiry, include the proposed version, cable length, route and connection hardware. Add any requirements for the sheath, fire performance or movement. These details make it possible to check the cable and its terminations together before installation starts.