IDA8 Global-Net User Manual
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© 2017, ATEÏS, member of PAX ProAV Group
S_ACT (Secondary Active Contact Output) /
P_ACT (Primary Active Contact Output):
The S_ACT and P_ACT contact outputs will inform the external device whether the primary or
secondary is active.
For example, when the RU status switches to the primary,
the P_ACT is close contact, and
S_ACT is open contact.
RU Status
P_ACT
S_ACT
Primary
Close
Open
Secondary
Open
Close
S_WD (Secondary Watching Dog Contact Inputs) /
P_WD (Primary Watching Dog Contact Inputs):
Connect the P_WD and S_WD inputs to the the Bypass Mode output on IDA8 processor. When IDA8
enters the bypass mode, the Bypass Mode output will inform the RU units, and the RU unit will
determine whether to activate the primary IDA8 or the secondary IDA8 processor by the monitored
P_WD and S_WD contact inputs.
The basic philosophy is that the master RU unit monitors the P_WD and S_WD inputs coming from
the primary and secondary IDA8 processors and decide which one can be active, and also passes
the decision to next RU units through EXP_OUT terminal. See the table as below.
For example, when RU detects P_WD and S_WD contact are closed, it switches to the
primary.
P_WD
S_WD
RU Switch Over
Close
Close
Primary
Close
Open
Primary
Open
Close
Secondary
Open
Open
Primary
If the RU unit is set as the slave RU unit, it monitors the S_WD which connects to the master RU unit,
resulting in setting the primary or secondary IDA8 processors to be active.
Master/Slave Switch:
A dip switch to set RU-MAIN be master or slave. The difference between master and slave please
refer to item "(S_WD) Secondary Watching Dog".
Expansion Power Supply:
Output 24V DC power to next RU-MAIN/PDC/CTL devices.
There are two connectors of this output:
PRI: Connect to Power Supply PRI connector next RU-MAIN/PDC/CTL.
SEC: Connect to Power Supply SEC connector next RU-MAIN/PDC/CTL.
Power Supply:
24V DC power input, which is connect to 24V DC Output of IDA8C/S.
There are two connectors of this input:
PRI: 24V DC power input from primary audio processor.
SEC: 24V DC power input from secondary audio processor.
Speaker Zone Output: