Wirnet iBTS architecture is completely modular and upgradable to offer multiple configurations to cover different countries and areas around the world.

This modularity brings the possibility to choose:

• The backhaul network: Ethernet or GPRS/EDGE/HSPA/CDMA/LTE for different countries.
• The Frequency of the unlicensed band (ISM) where to operate the LoRa LPWAN: 868MHz, 915MHz an 923MHz.
• The number of channels to operate the LoRa LPWAN: 16 to 64.
• The antenna interface: single (omnidirectional), dual (space diversity or dual polarization) or tri (sectorization).

Three different types of modules are integrated in the Wirnet iBTS:

• CPU Module which includes the main following features:
  • Power management of the Wirnet iBTS.
  • CPU.
  • Memories.
  • GNSS receiver (GPS).
    

This module is mandatory.

• WAN Module which provides the backhaul functionality:
  • Backup battery.
  • 4G modem available in 3 versions depending on the geographical area.
  • Dual WAN: Variant with 2 MC7304 modem.

This module is optional.

• LoRa module, which can be prepared in 3 versions:
  • 868 MHz: 863-873 MHz band.
  • 915 MHz: 902-928 MHz band.
  • 923 MHz: 915-928 MHz band.

A Wirnet iBTS integrates at least one LoRa module. Up to four LoRa module can be embedded.

• Based on ARM cortex A9 core processor
• 8GBytes eMMC
• 256MBytes DDRAM
• Security: Embedded hardware secure core
  

• Sensors:

Light - 1
Temperature

• ON/OFF Button - 2

• SMA RF connector for GPS antenna - 3

• USB connector type A - 4

• RJ45 Local Ethernet interface - 5

• Debug leds:

Green - 6
Amber - 8

• RJ45 Debug interface (serial debug interface) - 7

• Aux DC supply (11V-56V DC) Euroblock connector - 9

• RJ45 PoE connector: Ethernet + power supply from PoE injector -10

• RF SMB connector for LTE antenna
• USIM card holder
• 4G Mini PCI Express module from Sierra Wireless

America: MC7354
Europe and APAC: MC7304

• Backup battery

• 2 SX1301 (Semtech)
• 16 LoRa received channels at dynamic data rate and 125 KHz bandwidth
• 2 LoRa received channel at configurable bandwidth and fixed data rate
• 2 (G)FSK demodulator
• 1 FPGA
• Geolocation
• Sniffer: spectrum analyser

• RF front-ends are used for signal power amplification and filtering
• 4 RF front-end boards version

868 MHz (863-873MHz)
915 Mhz (902-928 MHz)
915 MHz 4 LOC (902-928 MHz)
923 MHz (915-928 MHz)

• RF front with 2 duplicated TX and Rx paths

RF path 1: RF1 SMB connector
RF path 2: RF2 SMB connector