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IPC-ET-652 Guidelines and Requirements for Electrical Testing of Unpopulated Printed Boards; Design specifications. IPC-2612 Sectional Requirements for Electronic Diagramming Documentation (Schematic and Logic Descriptions) IPC-2141A Design Guide for High-Speed Controlled Impedance Circuit Boards; IPC-2221 Generic Standard on Printed Board Design
Shape based autorouting was added in 2002 and 2006 saw another major product update with 3D Board Visualisation. More recently, a dedicated IDE for simulation was added in 2011 and MCAD import/export was included in 2015. Support for high speed design was added in 2017. [1]
P.R.Editor Used to create the tracks and other copper features of the board in an external environment to the Design Editor with many more features than the Embedded Router. High-Speed P.R.Editor Allows the user to define a wide range of circuit rules and routing constraints to control the layout process.
Annapolis Micro Systems, Inc.'s CoreFire Design Suite [11] and National Instruments LabVIEW FPGA provide a graphical dataflow approach to high-level design entry and languages such as SystemVerilog, SystemVHDL, and Handel-C seek to accomplish the same goal, but are aimed at making existing hardware engineers more productive, rather than making ...
In 1996 the first specification for ETCS followed in response to EU Council Directive 96/48/EC99 [4] on interoperability of the trans-European high-speed rail system. The functional specification of ETCS was announced In April 2000 as guidelines for implementation in Madrid. [5]
High Speed 1 (section 2) in the UK has a minimum vertical curve radius of 10,000 m (32,808 ft) [6] and High Speed 2, with the higher speed of 400 km/h (250 mph), stipulates much larger 56,000 m (183,727 ft) radii. [7] In both these cases the experienced change in weight is less than 7%.
It was the result of a collaborative effort between the Transportation Research Board (TRB) and the Bureau of Public Roads, the predecessor to the Federal Highway Administration. [ 1 ] The following editions were published by TRB in 1965, 1985, 2000, 2010, 2016, and 2022.
Minimum design speed: A minimum design speed of 70 mph (113 km/h) is to be used, except in mountainous and urban areas, where the minimum is 50 mph (80 km/h). [ 4 ] The sight distance , curvature and superelevation of the highway should follow the current edition of AASHTO's A Policy on Geometric Design of Highways and Streets for the chosen ...