6
Instruction
Connecting central amplifier unit for public broadcasting
When IRX2 receives public broadcasting audio signal from the central amplifier unit into the
emergency override (EO) jack, all audios will be muted except the EO audio.
1
Plug and tighten the EO cables (x2) into the 3P PHOENIX connector
’s jacks as illustrated
below. Then plug the connector to the 3P PHOENIX jack.
2
Switching voltage level of EO input from the central amplifier unit.
If the EO input voltage is
100V
, please switch to
100V
. (LEFT
)
If the EO input is
LINE
level, please switch to
LINE
. (RIGHT
)
3
Adjust the sensitivity level for activation with
EO SENS
control knob.
The output level of central amplifier unit varies on brands and models. The activation level
can be adjusted after connecting to IRX2 receiver amplifier. Please select a proper
sensitivity level that can activate EO so that paging call or other announcement can be
broadcasted via IRX2.
Important!! High sensitivity may result in noise into IRX2 too. Please set the EO SENS
to a level that is just enough to make EO broadcast work.
4
The public broadcasting volume can be adjusted by
EO LEVEL
control knob.
100V
LINE
LEVEL
