ATEIS IDA8C User Manual
Page 118

Ateis Studio
118
© 2012 ATEÏS
1. PDC Audio Output for Record
The audio output of peripheral plugged on PDC connector.
2. PDC Connectors
There are 2 sets of PDC port in RU-Main, each set consist of three connectors, allow system to do
one PDC peripheral redundancy, the "N" is the number of set:
P_PDC N
Connect to one of primary audio processor's PDC connectors.
PDC N
Connect to peripheral which communicates to audio processor using PDC interface, for example
PSS AS, PPM AS.
S_PDC N
Connect to one of secondary audio processor's PDC connectors.
3. Zone Amplifier Inputs
There are 8 sets of Zone Amplifier Input in RU-MAIN, each set consist of three connectors, allow
system to do one channel of zone amplifier redundancy, the "N" is the number of set:
P_ZONE N
Connect to N
th
channel of primary audio processor's zone amplifier input connector.
ZONE N
Connect to N
th
channel of normal amplifier's audio input connector.
S_ZONE N
Connect to N
th
channel of secondary audio processor's zone amplifier input connector.
4. EXP_OUT(Active Control Expansion Output)
This port output logic signal to next RU devices to synchronize redundancy state which tells primary
or secondary is active.
5. Fault
This port is a logic contact, which is normally closed, opened if the unit is set to be slave(refer to
Master/Slave Switch of later item), and a short or open is detected on S_WD(Secondary Watching
Dog) port.
6. S_ACT(Secondary Active Output)
Output a logic signal to indicate secondary audio processor is active.
7. S_WD(Secondary Watching Dog)
RU-Main/PDC/CTL determine active system will be primary or secondary IDA8 network by monitor
input logic contacts P_WD and S_WD, The basic philosophy is that master RU monitor the signal
coming from primary and secondary audio processor to decide which one can be active, and also
pass the decision to next RU through EXP_OUT port. When RU is set to be master, it monitor both
P_WD and S_WD for choose which IDA8 network will be active, but if RU is set to slave, it only