Test & Measurement


CPRI functionality eases fronthaul deployments

8 April 2015 Test & Measurement

Exfo announced the evolution of its all-in-one Ethernet/optical FTB-700G series and FTB-800 NetBlazer series to provide an enhanced common public radio interface (CPRI) protocol testing solution.

This latest feature gives field technicians the capability to install and maintain fronthaul networks by testing connectivity and data integrity between the remote radio head (RRH) and baseband unit (BBU) in new fibre-fed cell towers. This reduces the need for unnecessary tower climbs, hence reducing maintenance costs and overall OPEX.

Legacy cell towers with copper cabling are rapidly being upgraded towards fibre-optic infrastructures which offer better flexibility and scalability, helping mobile network operators to guarantee service coverage and increase the capacity of their fronthaul radio access networks. Alongside fibre, CPRI is playing a major role in the advancement of the tower.

CPRI is a new protocol that runs between the BBU and RRH which digitises incoming radio frequency signal over fibre. With CPRI, the base station no longer needs to be directly adjacent to the antenna on rooftops or any other costly, inefficient locations. Instead, the base station can be installed in locations where size, climate and availability of power are more easily managed.

The extended CPRI functionality is fully integrated into Exfo’s FTB-700G and FTB-800 NetBlazer portable field testers, bearing user-friendly interfaces. This facilitates the work of field technicians new to CPRI and fibre, since the test instruments are designed and pre-configured to deliver comprehensive results with minimum training.

For more information contact Chris Nel, Lambda Test Equipment, +27 (0)12 349 1341, [email protected]



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