pX2 wireless data-link product

The pX2 from Microhard is a miniature 2.4 GHz wireless data-link module that works as an 802.11b/g/n Ethernet and serial router. Microhard describes it as a high-power wireless router for industrial data communications, and an enclosed version, the pX2-SWP, is offered alongside the OEM module and a development kit. It is a LOS (line-of-sight) radio link component for unmanned systems and other remote platforms that need IP networking over the air.

The main performance figures are a transmit power of up to 1 W (adjustable), a data rate of up to 150 Mbps, and support for 802.11b/g/n devices in the 2.4 GHz band. Higher transmit power extends range and fade margin, while the adjustable setting lets an integrator trade range against interference, power consumption and regulatory limits on the platform. The data rate is the over-the-air figure, so useful application throughput depends on signal quality and the network configuration.

The network functions are access point, AP station and repeater modes, with multiple SSID support. This allows one module to serve as a ground access point, to join an existing network as a client on the aircraft, or to relay traffic between nodes when terrain or distance would otherwise break the link. A 10/100 Ethernet port carries IP traffic such as camera video, telemetry and payload data, and a serial gateway with RS-232 and RS-485 connects serial devices such as flight controllers, sensors and legacy equipment.

The module weighs 37 g and has an operating temperature range of -55°C to +85°C. The low mass suits small unmanned aircraft, and the temperature range covers cold at altitude and hot enclosed installations. In the enclosed pX2-SWP version, a single connector provides both data and power, which simplifies cabling and quick deployment, and an enclosure variant (pX2-ENC) and an accessories range are listed by the maker.

The product is listed as FCC and IC approved, which helps with equipment authorization for operation in North America. Integrators should verify band and power limits for other regions.

Typical applications named by Microhard include IoT and M2M systems, WiFi routing, remote telemetry, sensors and detection for the electric, oil and gas industries, display signs and general industrial data links. In unmanned systems the module forms the radio side of command, telemetry and video links where an IP-based radio is preferred.