Logirack system audio signal / PABX interface module with priority voltage-free contact via irreversible 4-pole connector and threaded collar. Typically used to allow the user to make announcements to system zones using a standard cordless phone. Input and RJ45 output for connection to the master matrix 49MM1000.3.2 and the microphone stations installed in the system respectively. The priority contact function (and priority over the bus) can be programmed as desired via the Sound Manager programming SW. It can be used to play an audio message loaded onto the master matrix SD or the audio from the connected source. It is the equivalent of a microphone station and takes up 1 address on the microphone BUS. 24 VDC external power supply via 4-pole connector. Height 1 modular unit.