Foremost prepares for multi-band network PIM test
A rugged enclosure for PIM testing in complex multi-band 4G and 5G networks has been developed by Foremost Electronics, working closely with customer, AceAxis.
AceAxis creates intellectual property rights (IPR) and technology to build, test and analyse the telecomms networks of the future. The company says it is a pioneer in the development of remote radio head (RRH) and embedded test and measurement technology for the telecomms market. Its technology is changing the way cell-site radio equipment is designed and tested and introducing products with a focus on innovation, value, time to market and quality.
AceAxis required a case for a single board device for passive intermodulation (PIM) testing in complex multi-band 4G and 5G networks. The test system analyses the digital bitstream (I/Q data) on the fibre interface between the base band unit (BBU) and remote radio head (RRH) to measure the effects of PIM.
There were a number of very specific requirements for the enclosure. It had to be a compact customer-specific form factor with a maintenance-free conduction cooling concept for a high thermal performance without the use of fans. It also required comprehensive EMC shielding and the integration of custom-developed rubber frames to protect the surface of the case, eliminating the use of conventional rubber feet, while ensuring a firm grip even when the enclosures are stacked or placed on a workbench or table.
Foremost is an added value channel partner for nVent Schroff and therefore has access to a wide range of standard, customisable and complete custom enclosure solutions and accessories.
To shorten the development time for a non-standard case Foremost used products from the nVent Interscale case range for the AceAxis design. The Interscale enclosure range provides a choice of enclosures with heights of one, two or 3U and with various widths and depths. It offers a range oof matched accessories such as mounting plates for PCBs or fan kits if required.
The Interscale components selected provided customisation and guarantees EMC protection with a special locking mechanism of the side panels. Fan cooling was not permitted, so a heatsink with a thermal pad to the processor was used. The custom rubber frame assembly is screwless and easy to remove and the cases have been painted to meet AceAxis’ requirements.
Foremost is a specialist distributor of electromechanical components.
