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Bulk power system keeps its head down

Edited by the Electronicstalk editorial team Dec 2, 2004

A new bulk power system aims for use in distributed power architectures, battery charging and N+1 redundancy in telecomms systems, networks, optical routers and mass storage.

XP has released a new bulk power system for distributed power architectures, battery charging and N+1 redundancy architectures in telecomms systems, data networks, optical routers and mass storage systems.

The CRP1K5 chassis accepts up to three CDP1K5 or CFP1K5, 1.5kW power units for -54 or +48V DC outputs, respectively.

Maximum system power output is 4.5kW, or 3kW in N+1 mode.

The chassis is 73.4mm or 1.6U tall, much lower than other units of similar power, creating more space for customer equipment within the rack.

Internal ORing diodes in each power unit facilitate hot-swap and redundancy.

With highest-in-class efficiency, typically 91% at full load, the power supplies generate minimal heat and each individual unit has integral forced-air cooling to save system space.

Intelligent, variable speed fans are fitted to minimise noise and enhance reliability.

The power supplies have universal AC inputs with integral power factor correction and meet all major international safety and EMC specifications.

The CRP1K5 bulk power system achieves a power density of 0.52W/cm3.

Full power is delivered at up to +55C ambient with derating at 2.5%/C from +55 to +70C.

Control signals include remote on/off, current monitoring, AC OK, DC OK, missing module, load sharing over a single wire connection with +/-10% accuracy, and both overtemperature and overvoltage indication and protection.

Overall rack size is 372.4 x 448.1 x 73.4mm and it is designed for 19in rack mounting applications.

The unpopulated chassis weighs 4.0kg, and fully loaded with three modules the system weighs 13.6kg.