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Pre-terminated tight buffered cables, engineered for internal deployment

PTX 100 Series

Our PTX-100 range of pre-terminated cables are manufactured using tight buffered fibres and are ideally suited for the installation of new internal links from panel to panel or via direct equipment termination links which are sometimes knows as hydra cables. Tight buffered cables are the perfect choice for indoor LAN and datacentre applications due to their overall physical construction and low cost. They are best suited for short to moderate length connections within a LAN or a Datacentre network.

The PTX-100 range of pre-terminated tight bufferd fibre cables comes fully terminated in core sizes ranging from 2-24 with all common single connectors available such as LC, SC, ST, FC, E2000 and with a wide range of custom tail and boot options. All PTX-100 cables are factory terminated and tested to our high performance and application standards to ensure a trouble free installation.

We are able to offer an extensive range of termination options to ensure your cable perfectly matches the requirements of your application.

What is a tight buffered fibre?

The “buffer” is the second protective layer applied directly to the silica fibre core. The tight buffer is typically some form of acrylate that protects both core and cladding and adds structural strength to the fibre cable itself such as a Kevlar wool.

The structural integrity of a tight buffered fibre optic cable can help prevent damage and breakage during installation and helps to extend its operational life. The buffer can also play an important role in improving transmission stability, particularly in extreme climate conditions.

When should you choose tight buffered fibre?

Environmental and physical factors will determine which is the correct fibre cable for your project. Tight buffered fibre optic cables are typically best suited to:
• Installation paths that feature multiple bends – particularly indoors.
• Applications where fibre cables may be subject to flex, bend, tension, torsion or compression post installation.
• High humidity operating environments.

Tight buffered cable however is not suited to locations where the fibre may come into contact with water, or where the cable will be completely submerged.

Loose tube vs tight buffered fibre

Unlike loose tube buffered fibre optic cables, tight buffer variants are not designed with a gap between coating and cladding layers. This close fit ensures that the protective, light scatter-reducing reducing properties of the jacket are maintained. And that each tight buffer fibre can endure significant bend and flex – much more than a loose tube equivalent cable.

The gap in loose fibre cables is typically filled with a gel that helps to increase the light transmission capabilities of the silica core. This gel does not tend to accommodate tight bends particularly well, frequently exposing the core. Tight buffered fibre is immune to this problem, which is why it is the best choice for constricted cable runs.

Although specifically designed for external (outdoor) applications, the gel filling in loose tube cables can also be affected by high humidity environments, or when submerged in water. Should the gel become compromised, signal transmission is negatively affected. Because tight buffer fibre optic leads are gel-free, they are ideal for installation in environments where there the cable must be submerged in water, or where there is a risk of high humidity.

The PTX 100 series of tight buffered pre-terminated fibre cables are ideally suited for the rapid installation of new internal links from panel to panel or via direct equipment termination links. Each pre-terminated cable comes fully terminated in core sizes ranging from 2-24 with all common single connectors available for termination.

Every fibre is factory terminated and tested to the highest standards to ensure a trouble-free installation.


+44 (0)20 8286 6529

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