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The reference designator usually consists of one or two letters followed by a number, e.g. C3, D1, R4, U15. The number is sometimes followed by a letter, indicating that components are grouped or matched with each other, e.g. R17A, R17B. The IEEE 315 standard contains a list of Class Designation Letters to use for electrical and electronic ...
The EMN File contains the PCB outline, the position of the parts, positions of holes and milling, keep out regions and keep in regions. The EMP file contains the outline and height of the parts. Some CAD software allows the use of a map file to load more detailed part models. [2]
There are actually two Excellon formats, the older Excellon 1 and Excellon 2. Excellon 2 is a superset of IPC-NC-349. Commands from both are sometimes confusingly mixed in the same file. Excellon Automation stopped publishing the specification of its format, without statement on the IP and usage rights of the format. An archived copy exists. [8]
Not to be confused with Printed electronics. "PC board" redirects here. For the mainboard of personal computers, see Motherboard. "Panelization" redirects here. For the page layout strategy, see N-up. Printed circuit board of a DVD player Part of a 1984 Sinclair ZX Spectrum computer board, a printed circuit board, showing the conductive traces, the through-hole paths to the other surface, and ...
The Gerber format is an open, ASCII, vector format for printed circuit board (PCB) designs. [1] It is the de facto standard used by PCB industry software to describe the printed circuit board images: copper layers, solder mask, legend, drill data, etc. [2] [3] [4] The standard file extension is .GBR or .gbr [1] though other extensions like .GB, .geb or .gerber are also used.
A computer network diagram is a schematic depicting the nodes and connections amongst nodes in a computer network or, more generally, any telecommunications network. Computer network diagrams form an important part of network documentation.
Eurocard is an IEEE standard format for printed circuit board (PCB) cards that can be plugged together into a standard chassis which, in turn, can be mounted in a 19-inch rack. The chassis consists of a series of slotted card guides on the top and bottom, into which the cards are slid so they stand on end, like books on a shelf.
EDIF (Electronic Design Interchange Format) is a vendor-neutral format based on S-expressions in which to store electronic netlists and schematics. It was one of the first attempts to establish a neutral data exchange format for the electronic design automation (EDA) industry. The goal was to establish a common format from which the proprietary ...