Multi-Tech Systems MT5600DSDV2 User Manual
Page 47
MultiModemDSVD User Guide
4 AT Commands, S-Registers, and Result Codes
47
Multi-Tech Systems, Inc.
S18
seconds 0–255
0
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.
S24
seconds 0–255
0
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.
S25
10 ms
0–255
5
Sets the length of time that the modem ig-
nores DTR while taking the action specified
by &D.
S29
10 ms
0–255
70
Sets the length of time that the modem goes
on-hook when it encounters a flash dial
modifier (!) in the dial string.
S30
10 ms
0, 1–255 0
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.
S32
decimal 0–255
17
Sets the ASCII code for the XON character.
S33
decimal 0–255
19
Sets the ASCII code for the XOFF character.
S35
decimal 0–1
0
0 disables, 1 enables the V.25 data calling
tone, which allows remote data/fax/voice
discrimination.
S36
decimal 0–7
7
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.
Register
Unit
Range
Default
Description