B&B BBA54, Руководство по эксплуатации

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3 Operating the BBA54 and BBA54-12 with the keypad
When power is supplied the amplifier
( BBA54 or BBA54-12 )
goes into standby mode
and supplies power to the connected radio
(Radio-Tape/CD)
. By pressing the relevant
button for the required source
(RADIO or VIDEO)
or by activating the microphones
(MK1 or MK2)
, the amplifier is switched on
(MK1 has priority over MK2)
. In this mode it is
possible to adjust the volume of each active source individually. Adjustments remain
in the memory even when the supply voltage is switched off. To turn off the amplifier,
press the OFF button, which restores it to standby mode.
3.1 Power-on and off
Select: Radio or Video to power-on the amplifier. The corresponding key will change
color from
green to red , the OFF esc one will change from red to green . Press the
OFF key to power-off the amplifier.
3.2 Inputs/Functionality
RADIO: input for Radio-Tape/CD.
The amplifier supplies power to the connected radio.
Volume control is effected by pressing the b or -, and remains in the memory
even if even if the power is removed from the amplifier.
VIDEO: input for video system audio.
The amplifier controls the on/off switch of the monitors.
Volume control is effected by pressing the b or -, and remains in the memory
even if even if the power is removed from the amplifier.
Mikes:
The amplifier is provided with two mike inputs
(MK1-MK2)
with priority over
all other sources, mikes are switched on with their own switch, and are not
dependent from the amplifier status
(on or off)
.
Volume control is effected by pressing the b or -, and remains in the memory
even if even if the power is removed from the amplifier.
RS485 Serial:
The RS485 dual serial port (
MODBUS-RTU protocol)
allows the
amplifier
(master)
to dialogue with all B&B devices and with any other systems in
existence. The peripheral units
(slaves)
identification is determined by the position of
the decimal uniselector on board all B&B equipment.
Just assign a number
(1÷7) to each
slave . Please, note that the number “0” is
assigned to the master .
CONNECTIONS