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Definition of "Header" |
The portion of a message that contains information used to guide the message to the correct destination. Normally a male connector having exposed pins which are molded into a plastic base. Headers are produced in either signal row or double row having a minimum of two pins. A 1-pin header would just a test-point. Common Headers are 0.1 inch spacing, pin-to-pin. Female connectors having the same spacing are used to interface. Headers are common in PC motherboards, and are very common as Jumper blocks. For more information and some graphics refer to Standard Headers. Also see Header Manufacturers Head Room. Safety Margin. High-Temperature Operation Heater. Same term as a Filament, see graphic to the right. A temperature stabilizer, sometimes shown as a serpentine trace when depicted within an IC package. A component used as a heater or temperature stabilizer could be nothing more than a resistor used to generate heat by allowing current to pass. / A pipe that serves as a central connection for two or more smaller pipes. / (1) a data structure containing control information that is placed at the head of a datagram; when placed at the end of a datagram this is referred to as a trailer. Addressing information and checksum are examples of the control information contained in a header. |
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