ATEIS IDA8C - Manual (Page 141)

Product Features 141
© 2012 ATEÏS
4.2.3 PPM AS
4.2.3.1 Overview
Unidirectional Condenser Addressable Microphone, compatible with all system units, PPM AS uses an
RS485 protocol over a single CAT5 cable connection, to transport both Audio and Power from the PPM
AS to the system units. The PPM AS comprises of 8 zones / 8 buttons with sleek condenser
gooseneck microphone, and spring metal protection, providing durability and excellent aesthetics as well
as allowing up to 256 zones expansion via the additional keypad easy extension station. The buttons
can represent a single zone or a group of zones and are easily defined via the GUI of the system units
using a simple Matrix selection.
The unit offers “Hold” and “Busy” LED signals in addition to the zone LED’s, and these allow the easy
identification of selection / Busy signals for the user.
All buttons can be programmed with drag & drop features from the System unit GUI software and each
button can be programmed for Push To Talk or Latch functionality.The unidirectional condenser
microphone warrants high quality directive signal pick up from the user and hence less interference from
the surroundings thanks to the cardioid polar pick-up pattern.
The RS485 communication protocol offers daisy chaining of up to 100 m on a CAT5 cable, and yet
makes outlets easy to connect via a standard RJ45 connectors. (The microphone compatibility listing
shows the maximum number of units per System).