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National Instruments Corporation
29
NI WSN-3226 User Guide and Specifications
Node Resources for LabVIEW WSN
Minimum sample interval ......................................0.1 s
User flash size ........................................................188 Kbytes
Number of flash erase cycles per sector ................100,000
Wireless Characteristics
Radio mode ............................................................IEEE 802.15.4
RF data rate ............................................................250 Kbps
Range
Americas ........................................................Up to 300 m
International ...................................................Up to 150 m
Frequency band
1
....................................................ISM 2.4 GHz (2400 MHz to 2483.5 MHz)
Channels
1
...............................................................11–24
TX power
Americas ........................................................+17 dBm maximum (50 mW)
International ...................................................+10 dBm maximum
Modulation type .....................................................DSSS (O-QPSK)
Receiver sensitivity ................................................–102 dBm
Antenna
Connector.......................................................Female RP-SMA connector
VSWR ............................................................2.0 maximum
Impedance ......................................................50
Ω
Directivity ......................................................Omni
Nominal gain..........................................................1.5 dBi
Power Requirements
The following power requirements specifications are typical at 25 °C.
Battery Power
Caution
Do
not
use rechargeable batteries.
Internal battery .......................................................4 AA 1.5 V alkaline or lithium batteries
Recommended batteries .........................................Energizer EN 91 AA, alkaline
Duracell MN1500 AA, alkaline
Energizer L91 AA, lithium
Battery operating temperature range
Energizer L91.................................................–40 °C to 60 °C
Energizer E91.................................................–18 °C to 55 °C
Duracell MN1500 ..........................................–20 °C to 54 °C
Voltage range .........................................................3.6 to 7.5 V
1
Due to regulations, the frequency bands depend upon country of operation.