Western Telematic SRM-100 User Manual
Page 43
Command
Function/Options
In
Modem Identification
I0
Display product identification code.
I1
Display checksum.
I2
Display ROM checksum as OK or ERROR.
I3
Display modem firmware revision level.
I6
Report modem data pump and internal code revision.
Ln
Modem Speaker Volume
L0
OFF or low volume.
* L1
Low volume.
L2
Medium volume.
L3
High volume.
Mn
Modem Speaker Control
M0
Disable Modem Speaker.
* M1
Speaker ON until carrier is detected.
M2
Speaker always ON.
M3
Speaker ON after dial, until connection is established.
Nn
Enable/Disable Automode
N0
Disable automode detection (equivalent to setting the
+MS
will be conducted as specified by register S37, or if S37=0,
according to the most recently sensed DTE speed.
* N1
Enable automode detection (equivalent to setting +MS
subparameters to 1). A subsequent handshake will be conducted as
specified by register S37, or if S37=0, starting at 28,800 bps V.34.
Notes:
• The Nn and S37=x commands override the +MS command settings. When the N0
or N1 command is issued, the +MS subparameters are updated accordingly. For
example, “N1S37=10” updates the +MS command subparameters to reflect
“+MS=10,1,300,12000”; while “N0S37=10” updates the +MS command
subparameters to “+MS=10,0,300,12000”.
• It is recommended to use the +MS commands instead of the Nn and S37=x
commands.
• Nn and S37=x commands are supported for compatibility with existing
communication software.
On
Return to On-Line Mode.
O0
Switches modem from command mode to on-line mode after
dropping to command mode using the escape sequence (+++).
O1
Switches from command mode to on-line mode and initiates an
equalizer retrain sequence before returning to on-line mode.
P
Set Pulse Dial as Default. Forces pulse dialing until the next T dial modifier or
T command is received.
9-4
SRM-100 - Secure Rack Modem, User's Guide
Modem Command Set (AT Commands)