Telit Wireless Solutions LE910-SKG, At Commands Reference Manual

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LE910-SKG AT commands reference guide
80437ST10619A Rev.1 – 2014-09-16
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 48 of 273
&D - Data Terminal Ready (DTR) Control
Note: if AT&D2 has been issued and the DTR has been tied Low , autoanswering is
inhibited and it is possible to answer only issuing command ATA .
Note: if parameter is omitted, the command has the same behaviour of
AT&D0
Reference V25ter
&K - Flow Control
AT&K[<n>]
Set command controls the RS232 flow control behaviour.
Parameter:
<n>
0 - no flow control
3 - hardware bi-directional flow control (both RTS/CTS active) (factory default)
Note: if parameter is omitted, the command has the same behaviour as
AT&K0
Note:
&K has no Read Command. To verify the current setting of &K , simply
check the settings of the active profile issuing AT&V .
Note: Hardware flow control (
AT&K3 ) is not active in command mode.
&S - Data Set Ready (DSR) Control
AT&S[<n>]
Set command controls the RS232 DSR pin behaviour.
Parameter:
<n>
0 - always High
1 - follows the traffic channel indication.
2 -
High when connected
3 - High when device is ready to receive commands (factory default).
Note: if option 1 is selected then
DSR is tied High when the device receives from
the network the traffic channel indication.
Note: in power saving mode the
DSR pin is always tied Low & USB_VBUS pin is
always tied Low.
Note: If parameter is omitted, the command has the same behaviour of AT&S0.
\R - Ring (RI) Control
AT\R[<n>]
Set command controls the RING output pin behaviour.