Multitech MultiModem II MT5600BA-V92 User Manual page 23

Advanced Options
RS232 OPTIONS
DIALBACKUP/LL
OPTIONS
Multi-Tech Systems, Inc. MT5600BA-V92 User Guide
The following LCDs are used to configure the RS-232 interface.
DTR OPTIONS
CARRIER DETECT
OPTIONS
LINUX OPTION
CTS 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
TIME TO RESTORE
(S15)
DIALBACKUP TIME
(S17)
Use  and Enter 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.
Use  and Enter 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.
The connect message will display after the proper
callback security password is entered.
Use  and Enter 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.
Use to enter a dial backup number. To scroll
through a list of digits and characters, press  
and . To go to the next position, press . To
back up or to exit without saving, press  several
times. To save the number, press Enter. Note: Only
16 characters can be displayed at a time. To see
characters 17–30, press . To go to the previous
LCD, press  . To go to the next LCD, press .
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.
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.
Chapter 3 – Using the Front Panel
23