110
Autonomous Control Unit and Local Operating Consoles
For example, a priority of 10% assigned to a zone switch on the ACU’s IPS switch adder
module has a higher priority than a priority of 90% assigned to a zone correlated to the input
module used by the MMX-LOC. Refer to Figure 68.
Figure 68 ACU and LOC Configuration
The MMX-LOC paging microphones are hardwired to the board belonging to the ACU paging
microphone. They have a 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 MMX-
LOC.
The MMX-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 MMX-LOC digital messages is set between the
input zones. For example, an input zone with an assigned priority of 70% will override an input
zone with an assigned priority of 50%. Refer to the figure below.
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