Specifications

General
  • Ultra-low-power and long-range wireless technology
  • Multi-year battery life
  • 2-way communications
  • Repeater function in every device (up to 4 hops)
  • Complete API (application programming interface)
  • Asynchronous or synchronous (with common real-time clock)
         operation (see note 1)

 

License-free ISM frequency bands
  • 868 MHz, 915 MHz, 433 MHz
  • Certified ETS300-220, FCC15-247, 15-249

 

Range

  • LOS range up to 1km (25mW, +15dBm)
  • LOS range up to 4km (500mW, +27dBm)

 

Data rates

  • 4.8 kbps to 100 kbps
  • Typical values: 9.6 kbps @ 433 MHz and 868 MHz;
         19.2 kbps @ 915 MHz

 

Link budget (with frame error rate appr. 0.1%)

  • ~-110dBm @ 19.2 kbps - 50kHz BW channel
  • -113dBm @ 4.8 kbps - 25kHz BW channel


Network access time

  • Programmable from 12.8 ms to 12.8s (typically 1.28s)

 

Power management

  • Programmable output power from -10dBm to +14dBm
         in 10 steps
  • Battery counter
  • Automatic Frequency Control
  • Automatic Sensitivity Control
  • Adaptive Frequency Hopping
  • Receiver Sampling (reduces average power consumption by
         a factor of 20 - 30)


Ultra-low-power operation (2)

  • Smart cyclic standby-receive mode
  • 10µA average operating current with 1s access time
  • 5µA average operating current with 2s access time
  • 17mA RX current in full run mode
  • 45mA TX current (25mW output power)
  • 2µA STANDBY current

 

Security and robustness

  • FHSS (Fast Frequency Hopping Spread Spectrum)
  • Single channel operation for narrowband applications
         (alarm regulations)
  • GFSK modulation
  • FEC (Forward Error Correction) - BCH(31,21)
  • Data scrambling via LFSR feed and pseudo-random
         sequencing
  • Data interleaving (16x16 matrix)
  • 3DES, AES-128, RSA, EMV security algorithms upon request
  • Combined RTS/CTS and TDMA (CSMA/TDMA for broadcast/
         multicast)
  • Carrier Sense (CS) optional
  • CSMA/CA(2)


Network

  • Point-to-point, point-to-multipoint (repeater, polling,
         broadcast/multicast)
  • Quality of Service management
  • Fast RSSI detection


Synchronous mode specific features

  • End-point synchronization with gateway
  • Protection against "overhearing"
  • Self-discovery protocol (SDP) - self-routing services
         for one-touch configuration
  • "Master data" packet with both payload and network
         information


(1) Power values are for information only. Actual values may vary with usage and product specifics.
(2) Typically used in asynchronous networks