Tratos FIBRE® CW1853 – COF 600


Telecommunication Cables / Optical Fibres Cables / UK Telecom Fibre Optic Cables

This range of COF 600 fibre cables (CW1853) is specifically designed and manufactured for installation into underground duct by the use of direct pulling techniques with a rope or glass fibre pulling rod.

CW1853 cable is for use in transmission systems operating over the wavelength range 1260nm to 1625nm.

Tratos FIBRE® CW1853 BT  fibre cables are of loose tube construction containing 36, 48 or 72 single-mode fibres constructed in units of 12 colour coded fibres within each water blocked tube. The individual fibre and tube colour identification scheme used is in accordance with CW 1853. The required number of tubes plus dummy fillers where required are assembled helically around a non-metallic central strength member, the design being specially chosen to ensure that the cable is neutrally balanced along its central axis. The interstices contain water blocking before the application of a water blocking binder tape and black high-density polyethylene sheath, two rip cords are inserted, diametrically opposite, under the sheath to aid stripping and termination of the cable. The robust polyethylene sheath used by Tratos meets or exceeds the requirements of BS EN 50290-2-24 and ensures outstanding pliability and protection.

TRATOS-FIBRE-CW1853_SECTIONTratos has developed CW1853 Fibre Cable to have the optimum balance of properties, toughness to pulling into ducts combined with a smooth, low coefficient of friction, surface, to ease installation and prevent jamming.

The Step Index single-mode optical fibre (SMF) fibres used to manufacture these cables for BT met or exceed the requirements for both Category 2 as specified in CW 1505 for systems operating in the wavelength range of 1260nm to 1625nm.

Tratos use Lucent OFS and Prysmian fibres to manufacture the Optical Fibre Cables supplied to BT.

These cables meet or exceed the requirements of CW 1853.

All of the polymeric materials used in the construction of cables for BT meet or exceed the requirements of BT Specification CW1500-7 and are RoSH compliant.


  • CW 1853 Design guide
  • BT Specification CW1179
  • BT Specification CW 1205
  • BT Specification CW 1402
  • BT Specification CW 1500-2
  • BT Specification CW 1500-7
  • BT Specification CW 1505
  • BT Specification CW 2000
  • BT Specification RC9307
  • BT Drawing CN14087 Sheet 3


  • British Standard BS EN 60794-1-2
  • British Standard BS EN 50290-2-24


  • ITU-T G657A1

Contact us:

Tel: +44 20 3148 5178


Please don’t hesitate to contact us if you need additional information about our products.


This range of COF 600 cables are intended for installation into underground ducts using a direct pulling techniques with a rope or glass fibre rod and a cable type stocking grip.


  • Non-metallic Central Strength Member
  • Single Mode (9/125µm) Optical Fibre 
  • Water blocked loose tube
  • WB Wrapping
  • Rip Cords
  • HD PE Outer Sheath


Technical Specifications

  • Single Mode (9/125µm) Optical Fibre (ITU-T G657A1)
  • These cables are for use in transmission systems operating over the wavelength range 1260nm to 1625nm.
  • Operating temperatures between -20°C and +60°C

Contact us

Please, don’t hesitate to contact us for additional information on our company or our products.

Related Case Studies

Other News

Our website uses cookies and thereby collects information about your visit to improve our website (by analyzing), show you Social Media content and relevant advertisements. Please see our cookies page for further details or agree by clicking the 'Accept' button.

Cookie settings

Below you can choose which kind of cookies you allow on this website. Click on the "Save cookie settings" button to apply your choice.

FunctionalOur website uses functional cookies. These cookies are necessary to let our website work.

AnalyticalOur website uses analytical cookies to make it possible to analyze our website and optimize for the purpose of a.o. the usability.

Social mediaOur website places social media cookies to show you 3rd party content like YouTube and FaceBook. These cookies may track your personal data.

AdvertisingOur website places advertising cookies to show you 3rd party advertisements based on your interests. These cookies may track your personal data.

OtherOur website places 3rd party cookies from other 3rd party services which aren't Analytical, Social media or Advertising.