SuperBus 2000 alphanumeric touchpads provide complete on-site programming and operational control. Featuring all the power of previous SuperBus technology, SuperBus 2000 adds automatic addressing, ''hot-plug'' programming, better information throughput, and more flexible peripheral device support. Features and Benefits: - Built-in speaker - Panic buttons for police, fire and auxiliary - 1 built-in hardwire zone-supervised - Automatic addressing - ''Hot plug'' capabilities allow for direct plug-in to panel and automatic service - touchpadaddress enrollment - Universal polling increases overall communication rates on the bus. Dimensions: 7.75'' wide, 4.60'' high, .78'' deep