RFM offers a full set of custom embedded wireless networking solutions like Zigbee wireless mesh sensor networks, RF modules, IC transceiver, IC transmitters and IC receivers. RFM, Inc. manufactures low power wireless and RF radio modules, wireless mesh nodes for distributed sensing on distributed sensor networks. Low Power radio, n../arrowband and short range devices, front end saw filters, active RFID, RFIC, coupled resonator filters, single silicon chips in the 70MHZ and 300-1000Mhz range.
HNIO-241A series modems are used to transmit 4-20 mA analog signals, remotely control industrial
relays and remotely monitor digital inputs such as switch and contact closures using highly robust
2.4 GHz FHSS radio technology. An HNIO network consists of a base station and one to four remotes.
Each HNIO-241A series modem has two 4-20 mA inputs, two 4-20 mA outputs, two digital inputs and
two relay outputs. Each 4-20 mA input in the base station can be configured to control a specific
4-20 mA output in a specific remote. Each 4-20 mA output in the base station can be controlled by
one 4-20 mA input in one remote. Likewise, each digital input in the base station can be configured
to control a specific relay in a specific remote, and each relay output in the base station can be
controlled by one digital input in one remote. A fully implemented network provides two bidirectional
4-20 mA channels and two bidirectional relay control channels between the base station and its
remotes. HNIO-241A series modems are Class 1 Div 2 certified. HNIO-241A wireless networks
provide a means to quickly and economically send 4-20 mA signals, remotely control industrial relays
and remotely monitor digital inputs in a wide variety of commercial and industrial applications.
ANM1001 A Solar Energy Harvester for Wireless Sensor Networks
ANM1002 Sizing Solar Energy Harvesters for Wireless Sensor Networks
Wireless Communications for Industrial Applications This paper examines the unique requirements and challenges of wireless communications in an industrial setting and provides an overview of RFM wireless products designed specifically for these applications. The information presented serves as a guide for systems integrators and end users responsible for factory floor automation, industrial/PLC control, SCADA, telemetry and related data communications applications. (~ 136 KB, Adobe PDF format.)
Wireless Transceivers—Make or Buy? In choosing to add wireless data capability to a new or existing product, every designer faces a critical decision: whether to engineer the functionality in-house or buy a ready-made module for the application. This paper provides a cost analysis to explore the relative merits of each approach. (~ 160 KB, Adobe PDF format)