Maker : Xecom
Part No. : XE900S-500

  Datasheet PDF : XE900S-500.pdf
  Cross Reference : XE900S-500 Cross Reference
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Shortcut : XE900S-500 

Product Information

www.DataSheet4U.com XE900S-500 June 2005 XE900S-500 Smart Spread Spectrum Transceiver Description The XE900S-500 combines a spread spectrum transceiver and micro-controller in a single, easy-touse, FCC Part 15 Registered module. The embedded communications controller manages the Frequency Hopping Spread Spectrum (FHSS) link and the host system interface. The XE900S-500 supports two unique features to simplify wireless networking. Count-Off™ allows the network master to quickly retrieve the status of 125 remote nodes with a single broadcast command. SensorOnAirTM eliminates the need for an application controller by utilizing the communications controller to directly manage analog inputs and digital control lines. Xecom also offers a low power spread spectrum model, the XE900SL10, for applications that require less range. The XE900SL10 has an obstructed range of 300 feet but is smaller, costs less and uses significantly less power. Features * Small Size: 1.295” by 1.410” by 0.255” * Serial Control and Configuration of the Wireless Link. * Supports a 254 node point-to-multipoint network * Programmable Transmit Power Output 100 to 500 mW. * Typical Receiver Sensitivity -100 dBm * Obstructed signal range to 1000 feet; * Wireless Data Rate 76.8K bps, half-duplex * Low power Consumption XE900S-500: 1000 mA @ 3.3 Volts; when transmitting at 500 mW output power; less than 1 mA of current flows in Sleep Mode or Power-Down modes * SensorOnAirTM (patent pending) allows direct connection of sensors to the Smart Transceiver * Count-OffTM (patent pending) allows the host node to download the status of all nodes in under 10 seconds. * Operating Temperature Range of -40 to +85 C * FCC Part 15 Registered XE900S-500 Block Diagram Antenna SAW FILTER ROM Serial I/F MUX TRANSCEIVER COMM. CONTROLLER Analog Inputs Digital I/O AMP SAW FILTER XECOM (1) XE900S-500 XE900S-500 MECHANICAL SPECIFICATIONS F E H Top View G B I C A D H Dimension A B C D E F G H I Description Module Width Module Length Module Thickness Minimum Lead Length Antenna Width Edge to Antenna Pin to Pin Spacing Edge to End of Pin Row Pin Row Length Inches 1.295 1.410 0.255 0.125 0.134 0.995 0.100 0.155 1.100 MM 32.89 35.81 6.48 3.18 3.40 25.27 2.54 3.94 27.94 XECOM (2) XE900S-500 Layout PCB for XE900S-500 and XE900SL10 Despite the fact that the XE900S-500 is substantially larger module than the XE900SL10, a common PCB layout can be used to support both products. This makes it easy to accommodate applications which include nodes with both long range and short range requirements. The XE900S-500 and XE900SL10 can share board layout because of common pin assignments. Pins 1 through 8 of the XE900SL10 are equivalent to Pins 3 through 10 on the XE900S-500; they have the same functions and are placed in the same sequence. Pin 9 on the XE900SL10 is an unused pin and therefore does not conflict with the ADC1 signal assigned to Pin 11 of the XE900S-500. The XE900SL10 requires a separate pin row for Pins 10 through 14. These pins will be hidden under the XE900S500 module when the larger module is installed. The XE900SL10 also includes one unique signal, Reset. Reset is an active high signal that can be left unconnected if no external reset is desired. The figure below shows the overlapping layout that supports both modules. The XE900S-500 outline and pins are shown in green. XE900SL10 pins and outline are shown in red. XE900S-500/XE900SL10 Overlay Gnd Vcc /TXD /RXD /CTS /RTS DIO3 DIO2 DIO1 DIO0 ADC1/NC ADC0 1 2 3/1 4/2 5/3 6/4 7/5 8/6 9/7 10/8 11/9 12 XE900S-500 XE900SL10 14 13 12 11 10 Reset ADC0 ADC1 Vcc Gnd XECOM (3) XE900S-500 Using the XE900S-500 Power Saving Modes The XE900S-500 includes three low power operating modes (Sleep, Power-Down and RF Monitor) to allow the host application to make maximum use of the available power. The #P command determines how the transceiver will operate when not being asked to transmit or receive an RF signal. Bel...

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