6100 BSC Programming Manual

6100 BSC Concepts and Context
NOTE
Remember that any parameter you set for the local
station must be consistent with the operation of the
remote station. In some cases, the settings must match;
for example, the block checking option (LRC or CRC16)
must be the same on both sides of the link. In some
cases, the settings must be complementary; for example,
if one station is identified as a primary, the other
should be identified as a secondary station.
LINE AND MODEM CONTROL. The following parameters influence line
and modem control:
BSCINTERNALCLK. If you specify this parameter, the LIU supplies
the transmit clock and determines the transmission speed of the
link. Otherwise, the modem supplies the clock and determines the
transmission speed. If the link has no modems--if it is
hardwired--you must specify BSCINTERNALCLK.
BSCBAUD<n>. This parameter sets the transmission speed in bits
per second; it is used only when the LIU supplies the transmit
clock.
The acceptable values of BSCBAUD<n> are:
BSCBAUD1200
BSCBAUD1800
BSCBAUD2000
BSCBAUD2400
BSCBAUD3600
BSCBAUD4800
BSCBAUD7200
BSCBAUD9600
BSCBAUD19200
Transmission speed must be the same on both sides of the link.
BSCCONNECTTO<n>. This parameter specifies how long the protocol
waits for DSR to appear after raising DTR. Because DSR is
required for a connection to be made, this interval is called the
"connect timeout."
The protocol raises DTR on either of two conditions: 1) the
application makes a CONTROL request to connect the line, or 2)
the application makes its first request to transmit or receive
data, without first having made a CONTROL request. If DSR
doesn't appear before the interval expires, the protocol resets
DTR and reports an error to the application.
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