HOT-SWAP DC/DC BUS CONVERTERS

NEWS RELEASE

June 18, 2004                                                             Editorial Contact: Gene Zuch

                                                                                                954-346-2442 ext. 303

HOT-SWAP DC/DC BUS CONVERTERS

CONVERT 24VDC TO 48VDC AT 1000 WATTS

Coral Springs, Florida- UNIPOWER Telecom's new TPCMQ24 series DC/DC bus converters convert 24VDC to either 48 or 54.4VDC for telecom applications. Output current is 20.8A at 48V or 18.4A at 54.4V, giving 1000 watts of total power. These converters operate from a wide range 20 to 30VDC (24V nominal) input with an efficiency of 89% and power density of 12.5 watts per cubic inch.

The converters are only 1U high and are rack mounted in a hot-swap, 19-inch shelf that can accept up to 3 converters for 3000 watts of total power. The output from the shelf is 62.4A at 48V or 55.2A at 54.4V. For added power, multiple shelves can be paralleled. The system can also be used in N+1 redundant mode.

Other features of the TPCMQ24 converters include automatic load sharing, output ORing diodes, adjustable output voltages, a 5V 250mA standby output, integral LED status indicators, and control and monitoring features which include output power good, input power fail, thermal warning and inhibit functions.

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TPCMQ24 DC/DC

BUS CONVERTERS

            These units are designed for a broad range of telecom applications including wireless communications and transmission equipment where a 24-volt bus or battery output must be converted to 48 volts.

            The TPCMQ24 DC/DC converter modules and shelves must be ordered separately. The converter modules are priced as low as $465 each, and the three-unit 19-inch shelf is priced at $387, both in medium volumes. Delivery is stock to 4 weeks ARO.

UNIPOWER Telecom is a division of UNIPOWER Corporation dedicated to telecommunications power systems, with a complete line of the industry's highest density rectifiers and inverters, AC and DC distribution solutions and custom configured DC power systems. For reader information contact Mark Hart, UNIPOWER Telecom, 3900 Coral Ridge Drive, Coral Springs, Florida, 954-346-2442 extension 315.

E-mail: markh@unipower-corp.com

Website: Unipower Telecom