![Kerlink 1LOC868-1W868-EU Installation And Maintenance Manual Download Page 60](http://html1.mh-extra.com/html/kerlink/1loc868-1w868-eu/1loc868-1w868-eu_installation-and-maintenance-manual_1956765060.webp)
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 60 / 221
Strict confidential
1.5.4.4
Front-end boards
1.5.4.4.1
Front-end board - Single module
The following block diagram details the architecture of the front-end board, in a single
module configuration:
Figure 30: Front-end board block diagram
The front-end board integrates two duplicated TX and Rx paths (RF1 path and RF2 path).
Each TX/RX path is connected to one SMB antenna port, referenced as RF1 and RF2.
Each path is detailed hereafter:
The front-end board is derived in three different versions to cover the unlicensed bands:
868MHz (863-873MHz)
915MHz (902-928MHz)
923MHz (915-928MHz)
The details of the frequency bands, channelization, out of band rejection are detailed in
§1.5.4.6.
RF1 antenna
RF2 antenna
RF1 path
RF2 path