Transmission block

In telecommunication, the term transmission block has the following meanings:

1. A group of bits or characters transmitted as a unit and usually containing an encoding procedure for error control purposes.
2. In data transmission, a group of records sent, processed, or recorded as a unit.

A transmission block is usually terminated by an End Of Block character (EOB), End Transmission Block character (ETB), End Of Text character (ETX), or End Of Transmission character (EOT).