Moore Industries WNM wireless network module

The WNM wireless network module from Moore Industries provides a low-cost wireless communications link between field sites that are in rugged or impassable terrain, with a single unit transmitting for up to 48 km and the ability to act as a repeater for a virtually unlimited transmission range, and in both point-to-point and point-to-multipoint network architectures.

The bidirectional WNM employs spread spectrum frequency hopping technology to avoid interference problems caused by crowded radio spectra. This technology allows multiple radio networks to use the same band while in close proximity. Operating at standard operating frequencies of 902 to 928 MHz (48 km range) or 2.4 to 2.4835 GHz (24 km range), the WNM does not require a regulatory licence and can typically be installed without performing costly RF site surveys.

When it is set in the Smart Switch Ethernet (SSE) mode, the WNM enhances the speed and reliability of data packet transmission by determining the most efficient path of broadcast (including direct to a single radio or to some or all radios in a network) on a packet-by-packet basis.

The WNM can be used with the Moore Industries NCS NET Concentrator System, as well as other SCADA and distributed I/O systems. WNM models are available for data communications networks that use ethernet and serial (RS485) communications.

The WNM utilises 128-bit AES encryption, 32-bit CRC error detection and ARQ for robust and secure communications. The industrial DIN rail-mount metal enclosure also ensures that the WNM can be used in rugged environments, including ambient temperatures from -40 to 75°C and relative humidity of 5 to 95%.