RS-232,
RS-449, RS-422 etc
Serial Data
Transmission is the most common method of sending data from one
DTE to another. Data is sent out in a stream, one bit at at time,
over one channel.
When a computer
is instructed to send data to another DTE, the data within the computer
must pass through a serial interface to exist as serial data. Then
it passes through the ports, cables, and connectors that link the
various devices. The boundaries (physical, funtional, and electrical)
shared by these devices are called interfaces.
Following are
the common or standard wiring pinouts for Serial Data Transmission
cables.
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