ZyXEL Communications ISDN Terminal Adapter Omni.Net Lite - Manual (Page 39)

Omni.Net Lite User’s Guide
Chapter 2 Using the Utility 38
The following table describes the labels in this screen.
2.7 Incoming Call Screening
Use this function to set restrictions on incoming data or voice calls.
In Incoming Call Screen under RS-232 Port or Analog Port, create a list of incoming call
phone numbers (with sub-addresses) and configure the Mode field to reject or accept the calls
with the phone number in the list.
Table 7 RS-232 Port: V.24 Signal
LABEL DESCRIPTION
Data Carrier Detect
Control
Data Carrier Detect (DCD) is a serial communication signal. It indicates
whether or not the TA is connected to a remote modem.
Select Follow DTR signal to raise the DCD signal and have the LED turn on
when the DTR signal is raised and the DTR LED is on and vice versa.
Select On only if in communication to raise the DCD signal and have the
LED turn on only when a data call is established.
Data Terminal Ready
Action
DTR indicates whether or not the computer or terminal is ready for data
transmission.
Select ON to OFF, disconnect the call (108/2) to have the computer or
terminal disconnect the current data call if the DTR signal is lowered and the
LED is off.
Select Ignore DTR status so that the TA will not follow the behavior of the
DTR signal to drop a call; you then need to use the ATH command to
disconnect it.
Select OFF to ON, make a call, On to OFF, clear the call (108/1) to have the
TA dial out a call using the pre-stored phone number when the DTR LED turns
on and disconnect the call when it is off.
Flow Control Setting Select the flow control method from the drop-down list. Options are Disable
flow control, CTS/RTS flow control and XON/XOFF flow control.
Data Set Ready DSR indicates whether or not the TA is ready for data transmission.
Select Follow DTR signal to have the DSR LED turn on when the DTR LED is
on and vice versa.
Select Follow DCD signal to to have the DSR LED turn on when the DCD
LED is on and vice versa.