New 600-W MicroTCA power supply targets broad range of telecomms applications

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By eeNews Europe

The PS-1138 provides functionality for powering, managing and protecting a MicroTCA system that includes up to 12 Advanced Micro-Controllers, 2 MicroTCA carrier hubs and 2 cooling units.

MicroTCA offers the telecomms market a standardised, highly configurable, hardware platform for a broad range of applications, able to be produced in high volumes at low cost. MicroTCA provides a system architecture allowing AdvancedMC mezzanine cards to be plugged directly into a MicroTCA backplane without a carrier card and its associated costs. The MicroTCA architecture offers high availability systems from none to fully redundant as hot-swappable cubes.

The Gresham Power Electronics PS-1138 provides 600 W of output power in the form of 16 channels of 12 V @ 7.6 A and 16 channels of 3.3 V @ 150 mA. The PS-1138 is hot swappable, can be configured for N+1 redundant operation, provides monitoring and reporting of power system status and can manage and isolate faults affecting the power system. The PS-1138 also supports redundant IPMI (IPMB-0) communication with the MCH/carrier-manager, enables and provides power to AMCs, CUs, and additional MCHs and includes an Enhanced Module Management Controller using two IPMBs (IPMB-A and IPMB-B).

The new Gresham PS-1138 MicroTCA power supply has a universal input voltage of 90 – 264 VAC @ 50/60 Hz, offers > 90% efficiency and a power factor of 0.99 typical. It is protected against overload, short circuit, over voltage and over temperature and meets Class B conducted emission standards. Environmental specifications include an operating temperature range of -10 to 55 degrees C at full load with 300 LFM forced air cooling, random vibration tested from 10 Hz to 500 Hz, 3 axis, 1.9 GRMS maximum and shock tested at peak acceleration of 1GPK maximum. International safety standards pending include UL, cUL 60950-1, CSA 60950-1 and VDE 60950-1

The Gresham Power PS-1138 MicroTCA power supply is suitable for enterprise and data communications, telecom edge applications and customer premises equipment, digital imaging, industrial and medical equipment.

Visit Gresham Power at


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