A graphics aided drafting system (GRAD)
Charles Alaimo · 1967
The standard Bell System schematic drawing package, as the name implies, consists mainly of a series of schematic drawings which describe functionally a circuit or system of circuits being developed. In addition to this pictorial information, the package also provides other information which clarifies the descriptions of the circuits. Among this additional information is:A. The apparatus figures - which are a tabular listing, according to equipment unit, of all of the circuit packs, components, etc., that enter into the make-up of the overall circuit.B. The apparatur index - a tabular description, according to function or component type, of all the circuit packs, components, etc., which comprise the circuit.C. Other sections which describe the composition of circuit packs, connector information and the interrelations between major functional blocks of a circuit.