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Configuring Modem Signals 10-21
Configuring DTR and DSR Signals
Port status indicates “Signal Wait” if
connections cannot be accepted because DSR
is deasserted.
DTRWAIT Has no affect unless SIGNAL CONTROL is
enabled.
SIGNAL CONTROL and
DTRWAIT
DTR is asserted only if there is a solicited
remote connection.
(SIGNAL CHECK disabled) Solicited remote connection is established
regardless of the state of DSR. Reception of
asynchronous data is accepted once the
connection is established.
Port is logged out if DSR is deasserted after
initial assertion.
DTR is deasserted for 5 seconds minimum as
a consequence of a logout. DTR can only be
reasserted when a connection is accepted.
Reception of asynchronous data is not
accepted unless DSR and DTR are asserted.
SIGNAL CONTROL and
SIGNAL CHECK
DTR is deasserted for 5 seconds minimum as
a consequence of a logout; otherwise, it is
always asserted.
(DTRWAIT disabled) Port is logged out if DSR is deasserted after
initial assertion.
Reception of asynchronous data is not
accepted unless DSR and DTR are asserted.
Port status indicates “Signal Wait” if
connections cannot be accepted because DSR
is deasserted.
Solicited remote connection is not accepted
unless DSR is asserted.
SIGNAL CONTROL,
SIGNAL CHECK, and
DTRWAIT
DTR will only be asserted if there is a
solicited remote connection.
Port is logged out if DSR is not asserted
within 60 seconds of connection acceptance.
Enabled Characteristic DTR and DSR Actions