Multitech MultiModem DSVD MT5600DSVD User Manual page 47

MultiModemDSVD User Guide
Register
S18
S24
S25
S29
S30
S32
S33
S35
S36
4 AT Commands, S-Registers, and Result Codes
Unit Range Default
seconds 0–255 0
seconds 0–255 0
10 ms 0–255 5
10 ms 0–255 70
10 ms 0, 1–255 0
decimal 0–255 17
decimal 0–255 19
decimal 0–1 0
decimal 0–7 7
Description
Sets the length of time that the modem con-
ducts an &T test before it returns to the
command mode. If the value is zero, the test
must be terminated from command mode
by issuing an &T0 or H command. When
S18 is non-zero, the modem returns the OK
message upon test termination.
Sets the length of time that the modem op-
erates in normal mode with no detected
telephone or serial port activity before en-
tering low-power sleep mode. The timer is
reset upon any serial port or telephone line
activity.
Sets the length of time that the modem ig-
nores DTR while taking the action specified
by &D.
Sets the length of time that the modem goes
on-hook when it encounters a flash dial
modifier (!) in the dial string.
Sets the length of time that the modem
waits before disconnecting when no data is
sent or received. A value of zero disables
the timer.
Sets the ASCII code for the XON character.
Sets the ASCII code for the XOFF character.
0 disables, 1 enables the V.25 data calling
tone, which allows remote data/fax/voice
discrimination.
LAPM Failure Control. Specifies the fall-
back action to take in the event of an LAPM
negotiation failure. These fallback options
are initiated immediately upon connection
if S48 = 128. If an invalid number is entered,
S36 acts as if the default value has been en-
tered. (See S48.)
0 Modem disconnects.
1 Modem stays online and a direct
mode connection is established.
2 Reserved.
3 Modem stays on-line and a normal
mode connection is established.
4 An MNP connection is attempted and
if it fails, the modem disconnects.
5 An MNP connection is attempted and
if it fails, a direct mode connection is
established.
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