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Operation
6.4.1 Internal Sync Mode
In this mode all signal and synchronizing strobe rates are produced in the QX-mini. When a
NAC circuit is initiated by the FACP, the NAC output signals are internally generated based on
how the software is configured.
The Sync Outputs will be activated when one of the NAC circuits has been activated. If two
stage operation is used, Sync Output1 produces the rate for the first stage signal and Sync
Output 2 produces the rate for the second stage signal.
To enable Internal Sync Mode
1. Configure in Software.
6.4.2 External Sync Mode
In this mode, externally generated synchronizing information is fed to the QX-mini. The
QX-mini outputs follow the signal pattern of the Sync Input. All synchronization signals are
supplied either from the FACP or from the QX-mini.
Sample setups:
• one QX-mini panel (generating synchronization) and three QX-mini-BP units
• one QX-mini panel and a FACP (regenerating synchronization from FACP) and two QX-
mini-BP units
• one QX-mini-BP unit (generating synchronization) and three QX-mini-BP units
To enable External Sync Mode
1. Configure in Software.
6.4.3 Redundant Input
The system continuously monitors the SLC loop. If there is no activity for an extended period
(80 seconds typical), an SLC trouble will be generated.
If multiple inputs are mapped to the same output zone then, as a redundancy, any single input
of the zone will activate that zone’s output.
Attention: If a Sync signal is disconnected then devices following that signal will
cease functioning.
Note: The inter-panel synchronization supports up to a total of four units.
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