Revision A of IPC-2511 identifies the generic requirements for implementation of product manufacturing description data and transfer. IPC-2511A helps users transfer design requirements and manufacturing expectations from computer-aided design systems to computer-aided manufacturing systems for printed board fabrication, assembly and test. IPC-2511A establishes the rules and protocol of describing data for electronic transfer in a neutral format. The format is frozen until January, 2002. The code reference is BNF. GenCAM™ is documented in a series of seven major sectional standards identified as IPC-2510. 199 pages. Released January 2000.