© Microhard Systems Inc.
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6.0 Configuration
6.2 Settings (S) Registers
The majority of modem configuration is done via the Settings (S) Registers.
Section 5.0 provides information on the available factory default settings as related to
operating modes and network topologies; this section examines each S register in
detail. Appendix C is a quick reference for the S register options.
In the following descriptions, default settings (where applicable) are in
boldface
. In
Command Mode,
query format:
ATS<S register #>? [Enter]
change format :
ATS<S register #>=<value> [Enter]
Values
Values
S0
Auto Answer
S2
Escape Code
0 up in Command Mode
1 up in Data Mode
This register determines in which mode the modem will be upon power-up. If selected
to power-up in Command Mode, the modem will be offline from the wireless network,
and ready to be configured upon power-up. The typical mode of operation is for the
modem to power-up in Data mode: ready to participate in data transfer over the
wireless network.
any ASCII value
+ (decimal 43)
Escape character. If >127, escape feature is disabled. Modification of this register
may be necessary when connecting the modem to a telephone modem where the
+++ character string may result in undesired consequences.
y
<command
command name>
x
If
the
command
referenced by
y
(above)
is found to be italicized in
the following register
descriptions, it indicates
that
the
particular
command will not appear
in
the
AT&V
(view
configuration) display.
Modification of S2 may
be
required
when
operating
the
Nano
module via a telephone
modem
connection
interface.
Values
S20
VWSR
N/A
This is always updated when a modem transmits. VSWR measurements allow the
operator identify if there are serious problems with the antenna system. Note that
lower power levels allow for more accurate VSWR measurements. (1.2 - 25.5)
S20 is only available in n920X2
