Data Sheet for Product

3
Smart Infrastructure A6V10430563_en--_b
2020-06-30
Automatic volume control
The 'Automatic Volume Control' (AVC) function is used if background noise can be expected
to fluctuate a lot, such as on train platforms and in airports and shopping malls.
The AVC function is required as a way of adjusting the sound level of the audio signal to suit
the current situation in the event of huge fluctuations in background noise. This ensures that
the wanted signal is always louder than any background noise so that it will be possible to
understand what is being said. Plus, announcements will not be too loud for people in quiet
buildings.
Automatic volume control module PCA2008-A1
The automatic volume control module PCA2008-A1 receives the audio level of the
measuring microphones PCA2007-A1. The PCA2008-A1 uses the received audio levels to
calculate the average, which is then forwarded to the connected audio matrix for further
processing. The input sensitivity can be set to line level or microphone level.
It is possible to connect up to four PCA2007-A1 to one PCA2008-A1. The connected
microphone wiring is monitored for short-circuits, interruptions and earth faults. Inactive lines
can be excluded via jumper. A fault is reported with the fault indication relay.
The PCA2008-A1 was specifically developed for use with the digital audio matrices PC2001-
A1, PC2003-A1 and PC2005-A1.
Automatic volume control microphone PCA2007-A1
The AVC microphone PCA2007-A1 is a measuring microphone that was specifically
developed for use with the digital audio matrices PC2001-A1, PC2003-A1 and PC2005-A1. It
constantly records the levels in the surrounding area within a set frequency range and
transmits the value to the receiver assembly PCA2008-A1 for further processing.
The output level can be set to line level or microphone level.
Extras
ATP AF2GUD-2*** SD 2 GB Card PCA2002-A1 （Preferred）
Swissbit SFSD2048N1 SD 2 GB Card PCA2017-A1 (Second source)
The SD cards PCA2002-A1 and PCA2017-A1 are digital Micro-SD memory cards with a
capacity of 2 gigabytes. The cards store up to 3 hours' worth of audio files. The cards can
hold up to 256 individual audio files. The SD cards satisfy the industry standard, providing a
guaranteed data storage period of over 10 years.
The SD cards PCA2002-A1 and PCA2017-A1 can be mounted in all audio matrices PC200x-
A1 and in the 'PACE-Net' call stations PT2001-A1 and PT2002-A1.
EOL modules
EOL3 (active) PCA2004-A1
The EOL3 (active) PCA2004-A1 ensures that the speaker lines are monitored without
interruption in accordance with EN 54-16.
The device is addressable. The 16 addresses are created by DIP switch.
Up to 16 PCA2004-A1 can be installed per speaker line. The PCA2004-A1 was specifically
developed for use with the digital audio matrices PC2001-A1, PC2002-A1, and PC2003-A1.