Specifications

CUSTOMATCOMMANDS
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161 HSPA+ATCommandsReferenceGuide
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V24OutputPinsControl#V24 
SetcommandsetstheATcommandsserialportinterfaceoutputpinsstate.
Readcommandreturnsactualstateforallthepins—outputorinput—intheformat:
#V24:<pin1>,<state1>[<CR><LF>
#V24:<pin2>,<state2>[...]]
where
<pinn>‐ATcommandserialportinterfaceHWpin
<staten>‐ATcommandsserialportinterfacehardwarepinstate
Testcommandreportssupp
ortedrangeofvaluesfor<pin>and<state>.
Syntax
Command Commandtype
AT#V24=<pin>[,<state>] Set
AT#V24? Read
AT#V24=? Test
ParametersandValues
<pin> ATcommandsserialportinterfacehardwarepin.
0 DCD(DataCarrierDetect).
1 CTS(ClearToSend).
2 RI(RingIndicator).
3 DSR(DataSetReady).
4
DTR(DataTerminalReady).Thisisnotanoutputpin:valueismaintainedonlyfor
backwardcompatibility,buttryingtosetitsstateraisestheresultcod
e“ERROR”
Notyetimplemented.
5
RTS(RequestToSend).Thisisnotanoutputpin.Thevalueismaintainedonlyfor
backwardcompatibility.Tryingtosetitsstateraisestheresultcode“ERROR”
<state>
StateofATcommandsserialportinterfaceoutputhardwarepins0,1,2,3when
pinisinGPIOmode.See#V24CFG.
0 Low
1 High
Notes
 If<state>isomittedthecommandreturnstheactualstateofthepin<pin>.
GPRSAuto‐AttachPropert y#AUTOATT
SetcommandenablesordisablestheTEGPRSauto‐attachproper ty.
Readcommandreportswhethertheauto‐attachpropertyiscurrentlyenabledornot,intheformat:
#AUTOATT: <auto>
Testcommandreportsavailablevaluesforparameter<auto>.