Number Item Description
13 Zone 1 - 6 select switches
and indicators
Push a switch to select an output zone. Each zone can be selected
independently. When a zone is selected the corresponding green LED is
on, and audio signals are routed to that zone. If a call is made from a
call station with locally selected zones, or when a signal is detected on
the Telephone/Emergency input, the green LEDs of all addressed zones
will flash. When a call has ended, the zone status returns to its previous
state.
14 Zone output attenuators Rotary controls to attenuate the output level of each zone
independently, using the following attenuation steps:
0dB / -3dB / -6dB / -9dB / -12dB / -15dB.
15 Built-in music source The music source comprises an AM/FM tuner and a USB/SD card player.
See Internal music unit, page 32.
16 Power switch Switches the unit power on and off:
– I = unit power ON
– 0 = unit power OFF
– Caution!
Risk of potential damage to unit. Before connecting power, always
check the voltage selector (17) (on the rear panel of the unit) to
ensure it is set to the correct country voltage.
Plena All-in-One System Operation | en 31
Bosch Security Systems B.V. Installation and Operating Manual 2014.09 | V1.2 |
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