6100 BSC Programming Manual

SECTION 2
6100 BSC LINK AND STATION MANAGEMENT
This section describes two important aspects of BSC operation:
• The six major states through which a station moves, and
the events that cause transitions between states. Some
application requests have different meanings in different
states, and error messages can indicate unexpected state
transitions.
• The modem signals BSC uses, and the events that cause them
to change. You need information about this interface to
choose and strap a modem, to select line parameters
consistent with your equipment and application, and to
diagnose line and modem errors.
You should at least skim this section before reading Section 3.
Later, you might find the lists and diagrams helpful as
summaries.
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