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 Industrial Automation/LAN,Wireless, GSM/GPRS
  
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SST-900B
Price: 811$

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Detailed features:
Wireless Modem Module RS-232/RS-485 Interface

Introduction
SST-900EXT is a spread spectrum radio modem with RS-232/RS-485 interface port. It is designed for data acquisition and control application between host and remote sensors. It is also useful for those application, the cable wire is inconvenient to be installed. Please refer to the right hand side hardware configuration .

Application
  • Remote Data acquisition
  • Factory automation
  • Building automation
  • Remote security system
  • Remote Display system


    • Features
  • Half-duplex up to 57600bps
  • Auto band -rate setting
  • ISM band
  • Full-duplex or half-duplex
  • Spread Spectrum technology


    • Specifications
  • Frequency Range :
    902-928 MHz (SST-900EXT)
  • Channel Spacing : 2MHz
  • Transmit power : 20 +/- 2dBm
  • Modulation technique : GMSK
  • Radio technique : direct sequence spread spectrum
  • Duplex Mode: TDD ( for Full-duplex)
  • Number of channel : 8
  • PN code rate : 1.365 Mchips /sec.
  • Communication distance: Depend on external antenna, default is 300M
  • Maximum data transfer rate in asynchronous mode:
    Full-duplex mode : 9.6Kbps
    half-duplex mode : 28.2K
  • Maximum data transfer rate in synchronous mode:
    Full-duplex mode : 19.2Kbps
    half-duplex mode : 57.6K
  • Data bit error rate
  • Antenna : < 1/1000@ -102dBm
  • Input voltage : 10~30Vdc
  • Input current : Typical then 250mA
  • Size : 106mm (L) x 76mm(W)x31mm(H)
  • Weight : 200g
  • Operating temperature : 0~50C
  • Operating humility : 0~90%

    • Specifications:
    Frequency Range902-928 MHz (SST-900EXT)
    Channel Spacing2MHz
    Transmit power20 +/- 2dBm
    Modulation techniqueGMSK
    Radio techniquedirect sequence spread spectrum
    Duplex ModeTDD ( for Full-duplex)
    Number of channel8
    PN code rate1.365 Mchips /sec.

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