Digi TransPort WR31 - Advanced Serial Port Parameters

Configure network interfaces Configure serial interfaces
Digi TransPort WR Routers User Guide 274
Advanced Serial Port parameters
The configuration parameters in this section are changed less frequently than those in the basic
section and so are given a separate page to reduce clutter in the main serial settings.
Answer V.120 calls after n rings (0 = Don’t answer)
Controls the answering of incoming V.120 calls. When set to 0, V.120 answering is disabled,
otherwise V.120 answering is enabled on this interface. Enter the number of rings to wait before
answering the call into this text box. This is equivalent to setting the value of the S0 register for
the associated serial port.
DCD
Selects how the Data Carrier Detect (DCD) signal is controlled. The available options are:
• Auto: Configures the router so that it will only assert the DCD line when an ISDN connection
has been established; this is equivalent to AT&C1.
• On: Configures the router such that the DCD line is always asserted when the router is
powered-up; this is equivalent to AT&C0.
• Off: Configures the router such that the DCD line is normally asserted but is de-asserted for
the time period specified by the S10 register after a call is disconnected; this is equivalent to
AT&C2.
• Pulse Low
DTR Control
This drop-down selection box controls how the router responds to the DTR signal. The available
options are:
• None: Configures the router to ignore the DTR signal; this is equivalent to AT&D0.
• Drop call: Configures the router to disconnect the current call and return to AT command
mode when the DTR signal from the attached terminal (DTE) is de-asserted; this is equivalent
to AT&D1.
• Drop line and call: Configures the router to disconnect the current call, drop the line and
return to AT command mode when the DTR signal is de-asserted; this is equivalent to
AT&D2.
• Drop call on transition
• Drop line and call on transition