Harrington Signal brand Remote Paging Microphone Panel. Features Specs: The HAVE-RM is a supervised remote microphone panel for use with the 25HAVE/50HAVE/100HAVE voice evacuation system. The purpose is to allow emergency voice messages to be made over the system speakers from another location remote from the 25HAVE / 50HAVE/ 100HAVE THE HAVE-RM connects via 3 pairs shielded cable to have the HAVE-MSC supervisory card, which is mounted within the 25HAVE/ 50HAVE/ 100HAVE. Fault condition in the wiring or int he remote microphone circuity are reported to the FACP through the same supervisory path as the 25HAVE / 50HAVE/ 100HAVE. When the HAVE-RM Microphone is keyed during an alarm condition, the alarm signal and digital message will be interrupted and live voice message can be broadcast. In normal stand the microphone can be keyed to make announcement at any time. Any time a HAVE_RM is keyed the In-Use LED will light on all other HAVE-RM's, the other units will be disabled. This is to insure that one operator is able to page over the system. If the master microphone in the 25HAVE/ 50HAVE/ 100HAVE is keyed it will override any remote microphone.