Ericsson MINI-LINK TN R3 ETSI Technical Description page 83

For a 1+1 configuration the RAU2 can be fitted directly to an integrated power
splitter. A similar solution is available for RAU1, using a waveguide between
the power splitter and the antenna.
A symmetrical power splitter version, with equal attenuation in both channels, is
used in the majority of the installations.
Figure 66
4.4.2.2 Separate Installation
All antennas with IEC 154 Type B waveguide interface can be installed
separately, by using a flexible waveguide to connect to the RAU. The dual
polarized antennas and the 2.4–3.7 m antennas are always installed separately.
Figure 67
4/1555-CSH 109 32/1-V1 Uen B 2007-09-14
RAU1
RAUs fitted to integrated power splitters
Separate installation in a 1+0 configuration
Radio Terminals
RAU2
8500
8454
77