Wirnet iBTS
Document title : Installation and
Maintenance Manual
Version : 2.0
Author : SNI
Date : 04/12/2018
Classification
This document is the strict property of Kerlink and shall not be either copied nor sent without express
written authorization of Kerlink
Internal Use
Kerlink m2m technologies reserved rights
Confidential
Kerlink – 1 rue Jacqueline Auriol – 35235 THORIGNÉ-FOUILLARD
Page 36 / 221
Strict confidential
1.4.3
“Four Lora Modules” version of Wirnet
iBTS
The following figure describes the functional architecture for a “4 LoRa modules” version,
featuring a maximum of 64 channels.
Figure 14: Wirnet iBTS “4 LoRa modules” block diagram
In this particular configuration, the mechanical front-end lids and front-end boards of each
individual “LoRa Module” are removed. They are replaced by a bigger RF front end board
and front-end lid that combine the 4 LoRa modules together.
This bigger RF front-end board can be derived in 2 bands versions to address different
countries:
o
915MHz (902-928MHz)
o
923MHz (915-928MHz)
The 868MHz band is not available in this configuration.
The bigger RF front-end board is configured to support a single antenna (64 channels) or two
antennas (2x32 channels).
The GPS (GNSS) connector, the WAN (LTE) connector and LoRa connectors are available on
the bottom side of the enclosure. The antennas are all external antennas.
