2U Horizontal Chassis Plugs Into Motherboards

May 12, 2003

This chassis seriously reduces downtime for rack-mount communications applications because the card cage needn't be disassembled.

Roger Allan

Designed for communications applications where minimizing downtime is critical, Elma Electronic's 39M 2U horizontal chassis lets designers quickly swap motherboards in a rack-mount environment. Traditional fixed-mounted motherboards can be mounted on card guides inside the chassis. The motherboard can then be swapped out of the card cage without taking the unit apart, gearing the box for rack-mount communications applications where mean-time-to-repair (MTTR) and downtime are essential.

Patented electromagnetic-interference springs, rated for FCC Class B EMC shielding, are used. This eliminates the use of traditional gaskets to shield external seams within the box, which can snag and bend and represent a point of failure. It also saves design costs. With an ac or dc input, the 2U 39M provides up to 500 W. The side-to-side airflow utilizes four fans for 180 CFM of cooling capacity.

All chassis products are completely assembled, wired, tested, and ready for integration upon arrival. Custom and modified enclosures to meet specific customer needs are also available. Pricing starts under $500, with delivery in six to eight weeks.

Elma Electronic
www.elma.com • (510) 656-3400
[email protected]

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About the Author

Roger Allan

Roger Allan is an electronics journalism veteran, and served as Electronic Design's Executive Editor for 15 of those years. He has covered just about every technology beat from semiconductors, components, packaging and power devices, to communications, test and measurement, automotive electronics, robotics, medical electronics, military electronics, robotics, and industrial electronics. His specialties include MEMS and nanoelectronics technologies. He is a contributor to the McGraw Hill Annual Encyclopedia of Science and Technology. He is also a Life Senior Member of the IEEE and holds a BSEE from New York University's School of Engineering and Science. Roger has worked for major electronics magazines besides Electronic Design, including the IEEE Spectrum, Electronics, EDN, Electronic Products, and the British New Scientist. He also has working experience in the electronics industry as a design engineer in filters, power supplies and control systems.

After his retirement from Electronic Design Magazine, He has been extensively contributing articles for Penton’s Electronic Design, Power Electronics Technology, Energy Efficiency and Technology (EE&T) and Microwaves RF Magazine, covering all of the aforementioned electronics segments as well as energy efficiency, harvesting and related technologies. He has also contributed articles to other electronics technology magazines worldwide.

He is a “jack of all trades and a master in leading-edge technologies” like MEMS, nanolectronics, autonomous vehicles, artificial intelligence, military electronics, biometrics, implantable medical devices, and energy harvesting and related technologies.