EOW March 2014

News Technology

WARP solution for unshielded 10GBase-T

Innovative WARP technology combines the protection of shielded cable with the convenience of unshielded cable. To achieve this, the system is partially ‘shielded’ by adding short, isolated sections of shielding (metal foil) to the cable. Because there is no continuous shielding, it does not need to be earthed. The length of each shielding section is chosen so that no standing waves can develop and produce negative effects in the frequency range up to 500MHz. Used in system, WARP technology allows ANEXT reserves that were previously only possible with shielding. This means there is no need for follow-up measurements of this parameter in the installation. Measurements are guaranteed by the layout of individual components. WARP cables offer a further advantage for Power over Ethernet (PoE). The integrated aluminium foil and thin cable sheath ensure heat generated in this cable by power transfer is lower than in comparable traditional cables, reducing ageing of plastic materials and allowing longer cable runs. Reichle & De Massari – Switzerland Website : www.rdm.com

Traditionally, Reichle & De Massari has a strong position in technology for both shielded and unshielded systems for data centres, office cabling and fibre-optic technology. This makes it possible for the company to offer professional, unbiased advice to the customer to find the optimum solution together, be it shielded or unshielded, to last through several generations of active equipment. The newly introduced WAve Reduction Pattern (WARP) technology is a prime example. This accommodates the demands placed on such systems by the rapid uptake of 10GBase-T data transmission. Transmitting at 10 Gbit/s involves the use of a sensitive, high frequency coding method. The sampling rates and the number of voltage values are many times higher than for 1000Base-T. As a result, susceptibility to interference increases by a factor of 100, due to the slight differences in potential between input signals from one bit level to the next. This is caused by the rise in cable attenuation at these high frequencies, and by the increased coding. In order for 10GBase-T to work correctly, it is crucial to control and suppress interference from outside the cables.

Fast and automatic payoff cantilever and dancer

PS Construzioni has launched a new model of payoff cantilever and dancer. The new payoff can be used for both insulated and non-insulated (copper) cables, while the sensitive dancer can process cables with a small cross-section (0.15mm 2 ). The unit is designed to provide controlled and consistent tension throughout the unwinding process of acceleration, maximum speed and deceleration. Reel loading and unloading is fast and automatic; the operator needs only to place the reel and select the reel diameter. The reel loading and unloading is by means of a steel platform activated by a pneumatic

▲ ▲ The new model payoff cantilever and dancer from PS Costruzioni

cylinder. This platform has two movements: vertical for reel loading/unloading, and horizontal for removing the reel.

PS Costruzioni – Italy Website : www.pscostruzioni.com

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March 2014