Sennheiser EK IEM G4 Instruction Manual page 34

To connect the transmitter to the antenna combiner:
Connect one of the RF IN sockets of the AC 41 with the RF OUT jacks of
▷
a transmitter.
Repeat the previous step until all four transmitters are connected to the
▷
antenna combiner.
▷ Connect the AC 41 to the power supply system (see "Connecting/dis-
connecting the AC 41 to/from the power supply system").
The LEDs light up (see "Meaning of the LEDs").
The SR IEM G4 and SR 300 IEM G3 transmitters are supplied with
voltage via the RF IN input sockets of the AC 41.
Installing the AC 41
33