Installation – RF Path Elements P/N 709C011801 Page 113
5.2.3 RAU Cavity Filter Installation
The external cavity filters are required when the RAU/RXU modules supporting the corresponding CELL and LTE bands are
deployed alongside units supporting the public safety service.
• The RAU supports connections to External CELL and LTE Filters
• The RxU supports connections to an External LTE Filter.
• In cases where an LTE External Filter is required and the RAU includes the RxU module – both modules must be connected
to an external LTE filter.
Note the following:
• The Cavity Filter mounting bracket supports wall/ceiling/acoustic ceiling installations. See Figure 5-73.
Figure 5-73.Cavity Filter Dimensions and Mounting Holes
• Consider the length of the RF jumpers (3m) and the distance from the RAU when determining the installation location.
• For acoustic ceiling installations – use provided safety cable to secure the filter assembly to a permanent structure within the
ceiling (e.g. acoustic ceiling grid or concrete ceiling above).
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