ATEIS IDA8 - Manual (Page 179)

Product Features 179
© 2012 ATEÏS
P_WD(Primary Watching Dog):
RU devices monitor this logic signal for determining active audio processor, please refer to item
"(S_WD)Secondary Watching Dog".
Master/Slave Switch:
A dip switch to set RU-PDC be master or slave. The difference between master and slave please
refer to item "(S_WD)Secondary Watching Dog".
4.2.1.6.4 Characteristics
Dimension = 436mm x 150mm x 44mm.
power consumption : 200mA @24Vdc
4.2.2 DNM
4.2.2.1 Overview
The DNM assures the omnidirectional sound recording and preamplification of the surrounding
background noise.
The 0 dB modulation is sent through the Audio Processor in order to provide the automatic gain control
feature of the DNM component and allows the level adjustment where the DNM is implemented.
Any situation in which the volume of loudspeakers need to be adjusted automatically depending on the
background noise. (ex: station, Airport, MRT, etc.)
4.2.2.2 Wire Connection
When the DNM is connected with a PDC port, the picture below shows how to wire. The type of cable is
the CAT5 FTP cable here.