The smart way to remote performance

Innovation

The smart way to remote performance

A power feed solution from a central point to DSLAMs or wireless equipment is a cost-effective option compared to local power supply.

HVDC power feed for DSLAM - The smart way to remote performance

A power feed solution from a central point to DSLAMs or wireless equipment is a cost-effective option compared to local power supply.

Always more, always on

To keep up with demand for ever faster and heavier data communication, networks are in constant change. Always growing. More fiber. More equipment. More power.

And with all this, higher costs. Greater complexity. More maintenance and more equipment that needs power.

However, wherever a fiber cable is installed, there is also room for a power cable that can distribute 380 VDC from a central system to the DSLAMs. It is safe, efficient and cost-effective.

Reduce complexity in your DSLAMs

With an HE Remote Power Solution, feeding HVDC from a central site, the amount of equipment needed at the individual DSLAM is greatly reduced. There is no longer need for local grid connections or complete power systems with battery backup, cutting operational cost significantly.

48/60 VDC switch mode power solution

48/60 VDC switch mode power solution

At the central site, an existing (or new) 48/60 VDC switch mode power solution, complete with battery backup, is supplemented by Flatpack2 HE DC/DC converters to transform the 48/60 VDC bus voltage up to a 380 VDC remote power.

The output side of the system includes a miniature circuit breaker (MCB) (F) for short circuit protection, an insulation monitoring device (IMD) for earth-fault detection and a surge protection device (SPD) to protect the equipment against surges from the outside.

The underground transmission cable is a two-pole, shielded cable, which is suitable for ground installation and voltages above 380 VDC.

On the remote side, Flatpack S DC/DC converters transform the 380 VDC down to 48 VDC, suitable for the DSLAM equipment in the outdoor enclosures. A distribution box includes surge protection device, a two-pole MCB (F) for disconnecting the remote site from the remote feed and cable terminals for the distribution of the underground cable to further DSLAM locations.

This Flatpack2 DC/DC converter provides a 380 VDC output from the 48 VDC or 60 VDC central system. This allows for high efficient transmission of battery backed up energy to small remote sites without grid connection. The galvanic isolated CAN bus allows for direct connection to the controller in a supplying Eltek power system. Advanced monitoring and control can then be achieved without adding a separate controller.

The Flatpack S DC/DC converter accepts a wide input range (200 - 400 VDC) and converts the transmission voltage back to 48 VDC - providing a stable supply for the remote equipment.

Oct 18, 2015

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