The Edwards 5540MV Adaptatone Millennium Central Tone Generator with Voice messaging has been designed for applications where simultaneous signaling of a high decibel, heavy duty signal and pre-recorded voice messaging is required. The tone generator assures a synchronous signaling sound from all remote speakers. The Millennium Central Tone Generator produces the 55 standard Adaptatone sounds and can store 20 seconds of field recorded voice messages. Four signals may be activated from field-wired, normally open contacts or a 24 VDC external voltage source such as an output of a PLC. Normally open contacts can be obtained from the Cat. No. 5538-4 or Cat. No. 5538-4R Adaptatone Signal Actuator.