Quick Installation Guide

Quick Installation Guide
Document
WERA4-Quick-US-200918
Page 14 of 73
4.11.2 Receive-Input-Filter - RIN6 (for 12 channels) – internal Filter Version
Figure 16: RIN Module
Each RIN module contains band-pass input filters for six receive channels as well as the
relays for the internal calibration. The filter is designed for a specific frequency and
bandwidth to provide optimum noise reduction.
In addition to that these modules contain the last lightning protection fuses. These fuses
consist of 4 switching diodes which get conducive in case of an overload at the filter
output. The system will operate even with burned fuses but with reduced signal levels at
these channels.
If a different operating frequency is needed, the RIN modules have to be exchanged. In
older WERA versions the lid of the RER unit need to be removed to get access to the SMA
connectors.
4.11.3 Receive-Input-Filter - RIN (for 8 channels)
Figure 17: RIN Module
Each RIN module contains band-pass input filters for four receive channels as well as the
relays for the internal calibration. The filter is designed for a specific frequency and
bandwidth to provide optimum noise reduction.
In addition to that these modules contain the last lightning protection fuses. These fuses
consist of 4 switching diodes which get conducive in case of an overload at the filter
output. The system will operate even with burned fuses but with reduced signal levels at
these channels.
If a different operating frequency is needed, the RIN modules have to be exchanged. In
older WERA versions the lid of the RER unit need to be removed to get access to the SMA
connectors.