Gresham Power Unveils Strongbox Front-End Power Cassettes

Gresham Power (Salisbury, UK) unveiled its new 1,200 W power cassettes for use with its Strongbox® front-end power shelf. The StrongBox power front-end is suitable for telcom equipment manufacturers, service providers, carriers and industrial system OEMs. The StrongBox power cassettes are available with active power-factor corrected universal ac or 12 Vdc, 24 Vdc or 48 Vdc input, and are self-cooling front-to-back allowing maximum system density.

Each StrongBox hub can hold up to three modular power converters from a range of over 20 different configurations. The ac input modules offer standard single-output voltages of 48 Vdc, 24 Vdc or 12 Vdc. Other ac input models are available for rectifier/battery charging use or battery backup operation and microwave transmitters. Two other ac input modules provide multiple outputs of either dual 5 Vdc or for telecom applications triple outputs of 3.3 Vdc, 5 Vdc and 12 VDdc.

In addition to the new 1,200 W power cassette, 600 W and 800 W models are available allowing a single 1U, 19 in rack shelf to provide 1,800 W, 2,400 W or 3,600 W of power from a single unit. The StrongBox systems may be connected in parallel to provide higher power systems and communicate via the I²C active data bus. Modules may be configured for hot-swap or N+1 power redundancy and optional external battery backup provides a full no-break power solution.

The system is ETSI standard compatible and meets EN55022 Class B and FCC 68 part 15. The operating temperature range is from 0 °C to +50 °C with no de-rating, and all modules are overload, short-circuit, over-temperature and over-voltage protected.