Do a Google search of “RF-shielded box,” and you’ll find a number of products for sale. These enclosures enable interference-free testing of cellular, Wi-Fi, Bluetooth, RFID, ZigBee, and other wireless applications. Designed for tabletop use, they range in size from a few inches on each side to a couple of feet.
An RF-shielded box might work well enough if you need to test one wireless device. Simply choose an enclosure that blocks the right frequencies for your particular application and place the device inside.
However, if you’re testing an operating system or application across a variety of devices, an RF-shielded box isn’t going to work very well. Real device testing requires many versions of the physical devices and for mobile applications, you might need to test hundreds or even thousands of devices to ensure compatibility. You need an enclosure that allows for dense installation of wireless devices, eliminates interference, and provides device cooling.
As the name implies, an RF-shielded box is an enclosure made of metal and lined with material that absorbs RF signals. The door to the box is fitted with a special gasket to prevent RF leakage. Some boxes are closed manually while others use hydraulics.
The box will typically have multiple network connectors and antennas to enable the testing of various types of network protocols. Some units can be configured using interchangeable I/O connector plates.
While a tabletop RF-shielded box can be useful for proofs of concept and similar use cases, an RF-shielded enclosure is an essential tool for real device testing. Best-in-class units will have the capacity to accommodate hundreds of wireless devices, along with computing, storage, networking, and power resources.
A high-quality RF-shielded cabinet will be hardened for security, and have integrated cooling to dissipate the heat generated by the wireless devices and IT equipment. It will also be customizable to meet specific testing requirements and data center configurations.
Enconnex offers a full line of shielded and non-shielded real device testing enclosures. Our flagship RF/EMI shielded cabinet, DevShield is constructed from aerospace-grade aluminum with copper-nickel gaskets sealing all seams and penetrations for maximum protection. It provides 85dB of attenuation at frequencies of 1MHz to 10GHz and can support up to 400 mobile devices in a single rack for testing websites, applications, and cybersecurity threats. It can also be used to test routers, cellular appliances, IoT devices, or other wireless communication hardware.
The most significant benefit of the RF-shielded enclosure is scalability. It allows testing to scale from an R&D lab with a handful of devices in a single enclosure to a data center with thousands of devices across as many racks as needed. Each enclosure remains isolated. Its standard 23.62” x 51.31” (600mm x 1303mm) footprint and 42U height (customizable) make it easy to integrate into any data center environment.
DevShield can support up to 1,500 pounds (680kg) of dynamic load. Yet the cabinet itself is lightweight — just 375 pounds (170kg) — so it can be installed virtually anywhere. It includes ten fans that move air at the rate of 235 cubic feet per minute. Both the roof and floor can be equipped with an optional power filter and I/O panel.
Real device testing requires more than an RF-shielded box. Contact Enconnex to discuss how DevShield can deliver the performance, efficiency, and scalability you need.