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The construction of the MPX88 paging microphone is made of weighted ABS material and finished with an acrylic top panel. The buttons are integrated using the capacitive touch principle without any mechanically moving parts. Selection & status LED’s are integrated below the acrylic surface, giving an indication of the selected zones and databus status.Besides the zone selectors, quick operation is allowed through the Select & Clear all buttons, while the push-to-talk (PTT) button should be pressed during the announcement. An integrated chime tone is heard before any announcement.Announcements can be made to the integrated pipe-neck microphone with a cardioid pickup pattern which can be tilted to the desired angle.The microphone should be connected to the matrix system using the fixed cable with a length of 2 meters. The distance can be extended to a maximum length of 300 meters, using standard CAT5E (or better) twisted pair cabling. Cascading of multiple paging stations is made possible using the priority-based (user-configurable) databus, when using additional junction boxes ARJ03P or CP45ARJ.