Cloud Electronics PM12 - Manual (Page 31)

PM4/8/12/16 Installation and User Guide v2.2 31
Only one PM in a network will require the analogue interface for the whole network
to be connected to a short-to-ground paging system. This should be the PM “nearest”
to the host mixer, as with a system comprised of PMs alone.
The PM’s analogue interface senses whether the short-to-ground connections are in
use by another microphone. If so, it is assumed that the system is busy. If this is so,
only high priority microphones on the PM network may make an announcement. This
allows the short-to-ground interface to be used in networks which also use other
paging equipment such as the earlier Cloud CPM-4 and CPM-8 models.