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Chapter 3 - Using the Front Panel
25
Multi-Tech Systems, Inc. MT5600BA/BL Series User Guide (S000276E)
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RS232 OPTIONS. The following screens are used to configure the RS-232 interface.
DTR OPTIONS. Use the
ÆÆ
ÆÆ
Æ 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
ÈÈ
ÈÈ
È 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
ÆÆ
ÆÆ
Æ 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 se-
curity ENTER PASSWORD prompt appears. Select CD NOR-
MAL IN CB to disable this feature. Same as the &
C5
and &
C4
commands.
CTS OPTIONS. Use the
ÆÆ
ÆÆ
Æ 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 screens are used to configure dial back-
up 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
ÇÇ
ÇÇ
Ç
ÅÅ
ÅÅ
Å
and
ÈÈ
ÈÈ
È buttons. To go to the next position, press the
ÆÆ
ÆÆ
Æ button.
To back up or to exit without saving, press the
ÆÆ
ÆÆ
Æ 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
ÈÈ
ÈÈ
È button. To go to the previous screen, press the
ÅÅ
ÅÅ
Å
button. To go to the next screen, press the
ÆÆ
ÆÆ
Æ button.
TIME TO RESTORE (S15). Sets how frequently leased line
restoral attempts occur when the modems are in dial backup
mode. The restore time interval can be set from 10 to 255 min-
utes in one minute increments. A value of 0 disables dial back-
up. 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.