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.

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DNT90
900 MHz Frequency Hopping Module

Other top DNT90 Applications

  • Monitoring and Control Applications
  • Industrial Automation and Remote Control
  • Applications requiring reporting of sensor data

    The DNT24 has the same form factor and pin out as the DNT90 and can be used for this application in the 2.4 GHz band.


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    see all DNT90 part #'s below
    Outdoor Signage

    Application Overview

    Outdoor notification signs have grown into a huge advertisement medium for businesses, schools, stadiums and other industrial and commercial facilities worldwide. A major manufacturer of electronic signage display systems needed to develop a cost effective wireless based signage system and after trials of several different radio modules decided to use the DNT90 radio modules.

    The key requirements of avoiding wired or cellular connections, reliable outdoor operation and ease of installation and system development were met by using a pair of DNT90 radios and using them to deliver the signage content to the outdoor signs wirelessly.

    A DNT90 radio module was designed into the display circuitry located outdoors at the signage post. This radio module received content updates form the base controller containing another DNT90 radio embedded into the circuitry and connected to a controlling PC.

    Applicable Product Features

    The DNT90’s high power output, fast data transmission rates, a unique blend of receiver sensitivity and out of band interference rejection, over the air programming and configuration were some of the key factors in the choice of this radio module. The low cost allows systems to be economically priced.

    SPECIFICATIONS

    Radio Characteristics:
    Frequency:
    Transmit Power:
    RF Data Rates:
    Receiver Sensitivity:
    Data Encryption:
    Network:

    Environmental:

    Power Supply:
    Dimensions:

    Mounting Option:
    RF Connection:
    Input /Outputs:
    Interface:
    Certification:     		FHSS (Frequency Hopping Spread Spectrum)
    902.76 – 927.24 MHz
    40 or 158 mW
    100 Kbps
    -100 dBm 10-5 BER
    AES-128
    Point to Point, Point to Multipoint, Peer-to-Peer and
    Store & Forward Repeating
    -40 oC to +85 oC
    10 - 90% humidity, non-condensing
    3.3 to 5.5 VDC
    DNT90C: 1.45 x 0.98 inches (36.8 x 27.9mm)
    DNT90P: 1.45 x 1.04 inches (36.8 x 27.9 mm)
    Pinned and Surface Mount Versions
    U.FL Coaxial (Chip Antenna version available in 2H 2012)
    6 GPIO, 3 ADC and two DAC outputs
    UART, SPI
    FCC, Canadian IC certified

    HOW TO BUY
    RFM products are sold through a world-wide network of manufacturer's reps and distributors. Go to the RFM website at www.RFM.com and visit the "How to Buy" section to locate a sales / distribution partner near you.

    Part Number Description
    DNT90P DNT24 FHSS Module - Pinned Version
    DNT90C DNT24 FHSS Module - Pinned Version, Chip Antenna
    DNT90DK DNT24 FHSS Module - Surface Mount Version