// Workers AI · dad joke modeWhat did the transmission block say? I'm blocked from transmitting.
In telecommunications, the term transmission block has the following meanings:
- A group of characters or bits transmitted as a block, unit, message, or packet. It usually includes additional encoded characters for error detection and correction.
- In data transmission, a group of records sent, processed, or recorded as a unit.
Some protocols require each transmission block to end with an end-of-message marker. This is often a control character such as End-of-Text (ETX), End-of-Transmission-Block (ETB), or End-of-Transmission (EOT).
Some protocols (especially those requiring ETX) require each transmission block to begin with a Start-of-Text character (STX).
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This article incorporates public domain material from Federal Standard 1037C. General Services Administration. Archived from the original on 2022-01-22.