End-of-Transmission-Block character
C0 CONTROL CHARACTER USED TO INDICATE THE END OF A BLOCK OF DATA
End transmission block; End of transmission block; ␗; ETB (computer); End Transmission Block character; End of Transmission Block; ASCII 23; \x17; U+0017
End-of-Transmission-Block (ETB) is a communications control character used to indicate the end of a block of data for communications purposes. ETB is used for segmenting data into blocks when the block structure is not necessarily related to the processing function.