Abstract
A suite of programs has been developed to control the network of analogue-signal switching multiplexers in the AGS complex. The software is driven by a relational database which describes the architecture of the multiplexer tree and the set of available analogue signals. Signals are routed through a three-layer multiplexer tree, to be made available at four consoles, each with three 4-trace oscilloscopes. A menu-structured operator interface program is available at each console, to accept requests to route any available analogue signal to any of the console's 12 oscilloscope traces. A common routing-server program provides automatic routing of requested signals through the layers of multiplexers, maintaining a reservation data base to denote free and occupied trunks. Expansion of the analogue-signal system is easily accommodated in software by adding new signals, trunks, multiplexers or consoles to the data base. Program control of the triggering signals for each of the oscilloscopes is also provided.
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