Haverhill based Duvine Ltd, DC power solutions provider, has been selected by the University of Surrey’s 5G Innovation Centre (5GIC) to power the development 5G Mobile Testbed, based on the University Campus in Guildford. The intention is that the Facility will steadily be upgraded from supporting a 4G network to a fully-fledged 5G system, enabling the development and testing of 5G prototype technologies in a real world situation.

The installation consists of a single Power Equipment Rack (PER) rated at 48VDC 24kW capable of supplying twenty-three Base Band Units (BBUs) Transceiver units requiring 1000W each. Alongside this Duvine also supplied forty-four smaller power modules, to supply a number of Remote Radio Units (RRUs) transceiver units requiring upto 280W each.

Multiple rectifier modules are utilised in each PER, each rectifier module converts the incoming mains 240VAC to the required -48VDC output. To provide the total power required, multiple rectifiers are required, also offering additional redundancy, such that, should one power module fail the remaining modules are capable of supplying the required load. The central controller ensures the rectifiers share output current evenly and monitors the system output volts and amps plus alarm conditions. The system is configured using Duvine’s proprietary software.

Each system is complete with its own DC distribution consisting of single pole MCBs complete with over-current protection of the DC line. AC input distribution is also provided.

Multiple rectifiers are also utilities within each of the RRU cabinets, providing both the power required and a redundancy capability should a single rectifier fail. These units could be further enhanced to include a battery backup solution, should the AC input become unavailable.

The 5GIC is due to open in September 2015. For further information regarding our Power Solution for 5G contact Duvine +44(0)1440 706777 or [email protected] .co.uk.