Mircom Flex-Net Phase II Application Manual page 37

Autonomous Control Unit and Local Operating Consoles
The paging microphones used by the FX-LOCs are hardwired to the board belonging to the
ACU paging microphone. Their hierarchy is configured on a firmware level to have lower
priority than the IPS switch adder module messages used by the ACU but a higher priority
than the FDS switching module messages used by the FX-LOC.
The FX-LOC broadcasts digital messages using an FDS switching module. Each switch on
this switching module is hardwired to inputs on an input module that are correlated to input
zones in the configuration. Each input is correlated to its own input zone with a digital
message attached to each zone. Priority for FX-LOC digital messages is set between the input
zones. For example, an input zone with an assigned priority of 70% will over ride an input zone
with an assigned priority of 50%. Refer to the figure below.
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