Multitech MultiModem II MT5600BA-V92 User Manual page 25

RS232 OPTIONS
The following LCDs are used to configure the RS-232 interface.
DTR OPTIONS
Use the  and Enter buttons to select how the modem responds to the high to low transition of the
DTR signal sent by the computer. DTR NORMAL causes the modem to hang up; IGNORE DTR allows
operation with computers that do not provide DTR; and RESET ON DTR  causes the modem to
perform a soft reset as if the Z command were received. Same as the &D0, &D2, and &D3
commands.
CARRIER DETECT OPTIONS
Use the  and Enter buttons to select whether CD will be forced high (CD FORCED ON) or whether
it will go high when the remote modem's carrier signal is detected, and go low when the carrier
signal is not detected (CD NORMAL). Same as the &C0 and &C1 commands. When using callback
security on UNIX systems, select CD LOW IN CB to force CD low until the proper callback security
password has been entered or until a disconnect occurs. This prevents the UNIX login prompt from
being displayed before the callback security ENTER PASSWORD prompt appears. Select CD NORMAL
IN CB to disable this feature. Same as the &C5 and &C4 commands.
LINUX OPTION
The connect message will display after the proper callback security password is entered.
CTS OPTIONS
Use the  and Enter buttons to select whether the CTS state will follow the RTS state when
on line (CTS NORM) or whether CTS will always be high (CTS ON). Same as the &R0 and &R1
commands.
DIALBACKUP/LL OPTIONS
The following LCDs are used to configure dial backup for four-wire leased line operation. For more
information, see Chapter 4, "Leased Line Operation."
DIAL BACKUP NUMBER
Use to enter a dial backup number. To scroll through a list of digits and characters, press the  
and  buttons. To go to the next position, press the  button. To back up or to exit without saving,
press the  button several times. To save the number, press the Enter button. Note: Only 16
characters can be displayed at a time. To see characters 17–30, press the  button. To go to the
previous LCD, press the  button. To go to the next LCD, press the  button.
TIME TO RESTORE (S15)
Sets the leased line restore attempts occur when the modems are in dial backup mode. The restore
time interval can be set from 10 to 255 minutes in one minute increments. A value of 0 disables dial
backup. Same as the S15= command.
DIALBACKUP TIME (S17)
Use to set how long the modem waits after a leased line failure before it attempts a dial backup
connection. The timer can be set from 1 to 255 minutes in one minute increments. Same as the
S17= command.
CALLBACK SECURITY
Use the  and Enter buttons to turn callback security on or off. Same as the #DB0 and #DB1 commands. For more
information about callback security, see Chapter 6, "Callback Security."
PASSWORD SETUP
Use to enter callback security passwords in memory locations 1–30. Each password must be six to
ten characters in length. To scroll through a list of digits and characters, press the   and 
buttons. To go to the next position, press the  button. To back up or to exit without saving, press
the  button several times. To save the password, press the Enter button. Same as the #CBP=
command.
Multi-Tech Systems, Inc. MT5600BA-V92 User Guide
Chapter 3 – Using the Front Panel
25