The number of attenuators that can be installed in the UJ will depend on the cable type, the number of fibers it contains and the dimensions of the attenuator body. Please contact a member of the UJ Consortium who will assess your requirement to determine if your particular application can be accommodated and, upon completion of any necessary qualification, incorporated into the UJ Construction Manual.
The UJC does not supply attenuators. When required, these are to be supplied by the cable manufacturer or system supplier. The UJ Consortium does not take responsibility for the long-term reliability of any third-party supplied attenuators that may be installed in the UJ. Any attenuator to be installed in a UJ requires prior confirmation, by the UJ Consortium design authority who has qualified the cable type, that the attenuator can be physically accommodated within the UJ.
The UJ/UC and UQJ products are tested at 1550nm during their qualification process. This wavelength is the mid-point of the ‘C’ band (1530nm to 1565nm), and field experience demonstrates that they are fit for purpose for use in this wavelength range with the fibers qualified for UJ/UC and UQJ applications (please refer to FAQ 3.07 on this topic). If you are planning to use the products outside of this range, we suggest that a question should be submitted via the website so that the advice of the UJ Consortium experts can be sought.
The Universal Joint is currently qualified to 15kV, subject to the limits of the cables connected, and based upon the use of Common Component Kit KIT09002 or KITH9002. Joints using Common Component Kit KIT09001 were qualified to 10kV subject to the limits of the cables connected. Consideration is being given to extension to higher voltage operation. It is necessary to refer to the relevant Qualification Test Certificate or Report to verify the test voltage used in the qualification of any given cable-cable joint combination.
A construction manual is a written procedure issued by a consortium member that details a specific UJ, UC or UQJ activity. An up-to-date list of available construction manuals can be found on our website: http://www.ujconsortium.com
The UJCMs and other product information are compiled, on a quarterly basis, and published on a USB Memory Card in the form of the ‘UJ EXPLORER’. This is available by subscription using the application form that is available here.