Within
the Plena family of products there is a comprehensive range
of source units and amplifiers which enable background music
and messaging for your public address system.
The
Philips / Bosch Plena BGM mixer amplifier is a dual zone 120w
mixing amplifier and background music source in one unit. The
dual zone model directs sound (announcements or background music)
to two separate areas - very useful if zones need to be muted.
The music source consists of a digital FM/AM tuner (15 presets
to store radio stations) and a CD Player (Audio CDs and MP3
encoded CD-Rs). An auxiliary music input is also provided for
external sources such as DVD or cassette deck. Priority and
Vox microphone input.
An
all-round PA system needs a quality music source. The Plena
CD player/tuner is the perfect background music source. The
track selection keys of the slot-loading CD player include random
and repeat for background music.
The digitally controlled FM/AM tuner uses
a frequency synthesizer for accurate capture of radio stations.
It has 10 presets to store programs and keys for tuning and
scanning. The CD-player and tuner both operate in mono as required
for background music, and separate output are provided to allow
two-channel music distribution. A mixed output provides the
tuner signal, as long as the CD player is not playing. If the
CD player is activated, then the CD player signal is provided
on that output.
The
Plena message manager is a high performance, stand-alone digital
message player. Applications range from spot announcements in
supermarkets to warning and evacuation messages in emergency
situations.
Up to 12 messages can be stored in the internal 64Mbit EEPROM,
without the need for data retention battery back-up. Each message
can have any length within the total available capacity. Messages
are downloaded from a PC via RS232 into the memory. The familiar
WAV-format is used for the messages and sample rates of up to
8kHz up to the 24Khz with 16-bit word length (linear PCM) are
supported. This gives up to 500s of recording time with CD quality
signal to noise ratio. The unit comes with a dedicated PC program
for configuration and downloading. After downloading the unit
operates without PC connection.
The unit has 12 contact closure trigger points. Each can be
configured for a sequence of up to 4 messages out of the available
ones. In this way some messages may be used in different contributions
with other messages, making efficient use of the available storage.
The Message Manager can also be used for playing emergency /
evacuation messages: it fulfills the EN60849 standard. With
full supervision any failure in the unit results in a red LED
fault indication with fault output contact.
