Interface, 12.3 AT&D Circuit 108 DTR Response

12. Interface

12.1	AT+CPIN	PIN Control
		See 3.26, AT+CPIN PIN Control
12.2	AT&C	Circuit 109 (DCD) Control

Description	Command	Possible Responses

Set behavior of carrier	AT&C[<value>]	OK
detect		ERROR

Determines the behaviour of the carrier detect.

<value> Description

0DCD always on

1DCD follows the connection. Default value

12.3 AT&D	Circuit 108 (DTR) Response

	Description	Command	Possible Responses

	Control actions from	AT&D[<value>]	OK
	DTE		ERROR

Controls all actions initiated by data terminal ready from DTE.

<value> Description

0Ignore. Default value

1When in on-line data mode, switch to on-line command mode. For all other states, see <value>=2

2Disconnect and switch to off-line command mode

12.4 AT&S	Circuit 107 (DSR) Response
	This command is not availalbe in software releases up to and including
	R2A.

	Description	Command	Possible Responses

	Set behaviour of data	AT&S[<value>]	•	OK
	set ready		•	ERROR


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LZT 123 7263 R1C

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Image 197

Sony Ericsson GM47, GM48 manual Interface, 12.3 AT&D Circuit 108 DTR Response, 12.4 AT&S Circuit 107 DSR Response, R2A

Contents

GM47/GM48 Publication number LZT 123 7263 R1C All rights reserved Contents Digital Ground Dgnd Where to Install the ModuleVIO 2.75V Supply 14.1 Digital to Analogue Converter DAC 14.2 Conventions AT Command Syntax AT Response Syntax Blind Dial Delay Control 104 Command Line Editing Character Backspace 104Connection Completion Timeout 105 Ericsson Master Reset 109 Quality of Service Profile Minimum Acceptable 164 Select Bearer Service Type 153Quality of Service Profile Requested 166 Select Service for MO SMS Messages 170 Reset to Default Configuration 200 12.9 Command Echo 198 12.7Switch to 07.10 Multiplex Protocol 200 12.10 Restore SMS Settings 202 12.11 Select Service for MO SMS Messages 251 15.3 Ericsson Settings Number 242 14.11Service Centre Address 253 15.5 Send Command 262 15.10 M2M Supplementary Service Dispatch 313 18.10 Advice of Charge 309 18.5M2M Supplementary Service Indications 314 18.11 Supplementary Service Notification 328 18.17 Part 1 Overview Page Target Users IntroductionPrerequisites Manual Structure Part 4 Using AT Commands GM47 in a Communication System GM47/GM48 ModulesAbout the GM47/GM48 Family Interface between the Module and the Application Gmsk Features Short Message Service Average Power Consumption Service and Support Precautions Abbreviation Abbreviations THD Part 2 Developer’s Kit Page Overview Contents of the Kit Module connections to the developer’s board General Functioning of the Kit Power supply connection and the on-board voltages Audio signals, connection and routing Front view Using the Developer’s Kit Start up Check List Developer’s board overlay Developer’s Board Overlay SW4 Service Jumpers, Switches and Connectors Dcio ON/OFF Pcmuld Pcmdld Pcmclk Pcmsync Dgnd Pcmin Pcmout System Micn Bearn Bearp Micp PCMSimvcc Simrst Simclk Simdat Simpresence Simgnd EAR Test System connector pin assignments System Connector Pin Assignments Part 3 Integrating the Module Page Interface Description Mechanical Description Dimensions of the GM47 Physical Dimensions GM47, viewed from underneath System Connector Interface VCC SDA ADC3SCL Buzzer Afms General Electrical and Logical CharacteristicsAtms Agnd Grounds VCC Regulated Power Supply Input Parameter Mode ON/OFF and External Power Signal Times are defined as follows ON/OFF timing and VIO performance Analogue Audio Output at BEARN/BEARP for 3dBm0 at Pcmin Output at Afms for 3dBm0 at PcminAUX AMP Rxpga Microphone connections to the module Table below shows the audio signal levels for Afms Speaker Signals Pcmdld to Pcmin Pcmuld to Pcmout Electrical characteristicsPCM Digital Audio 16-bit data word format 16-bit word within 24-bit frame Pcmclk Pcmsyn Pcmout Serial Data Interfaces OFF RD, TD RTS, CTS, DTR, DCD, RI Table below shows the switching times UART2 TD2, RD2 RD is used to send data to your application via UART3 SIM Card Related SignalsSimvcc Simdata SIM Detection Simpresence Buzzer Service/Programming12 LED LED states shown below, are hard coded Following circuit should be used to connect an LED General Purpose Digital I/O Ports DAC General Purpose Analogue I/O PortsADC1 ADC2 DAC loads Txon Burst Transmission External I 2C Serial Control Bus Vrtc Real Time Clock 10 RTC connections Antenna Connector Hints for Integrating the Module Safety Advice and Precautions Installation of the Module How to Install the Module Antenna Antenna Type Possible Communication Disturbances Mechanical Specifications Technical Data Environmental specifications Declaration of Conformity FCC Certificate Part 4 Using AT Commands Page Syntax Description Introduction to AT Commands Example! ATL=0CR sets the volume of the speaker Example! AT+CSCS?CR show current character set Example! AT+CFUN=0CR powers down the moduleCROKCRfinal result code response Crokcr final result code Invalid command or command line too long Command executed, no errorsNo dialling possible, wrong mode Remote station busy Error Codes 2 +CMS Error Message Service Failure Result Code SMS Text Mode Examples on How to Use the AT Commands +CMTI SM,2 Reading messages is performed as in PDU mode AT+CMGL=ALL Gprs Communication GM47/GM48 INTEGRATOR’S Manual PIN Control Call ControlAnswer Incoming Call See 3.26, AT+CPIN PIN Control Busy ATD DialNo Dial Tone Dialstring Description ATD07747008670 AT+VTS=4 ATH Hang up Signals the MS to terminate an active callATL Monitor Speaker Loudness Included for compatibity. No functionality ATT Select Tone Dialling ATO Return to Online Data ModeATP Select Pulse Dialling During a call set-up ATX Call Progress Monitoring Control10 AT+CHUP Hang up Call AT+CMOD=? 11 AT+CMOD Call ModeAT+CMOD? 13 AT+VTS Dtmf and Tone Generation 12 AT+CVHU Voice Hang-Up Ascii Dtmf 100 ATS0 Automatic Answer Control Control and StatusATQ Result Code Suppression ATS2 Escape Sequence Character ATS3 Command Line Termination CharacterATS2? ATS3? ATS4? ATS4 Response Formatting Character ATS6 Blind Dial Delay Control ATS5 Command Line Editing Character BackspaceImmediately preceding character Included for compatibility. No functionality ATS8 Comma Dial Modifier Delay Control ATS7 Connection Completion TimeoutConnection being established. If this time is exceeded then Connection is aborted 11 AT*ECAM Ericsson Call Monitoring 10 ATS10 Automatic Disconnect Delay ControlAT*ECAM? AT*ECAM=? Control and Status 12 AT*EDST Ericsson Daylight Saving Time This command sets the daylight saving time hoursEcam AT*EDST? AT+CLCK 13 AT*EMAR Ericsson Master ResetAT*EMAR=? Inserted and accepted 15 AT*ESMM Ericsson Settings Minute Minder14 AT*EPEE AT+CALA=? 16 AT+CALA Set AlarmAT+CALA? This command removes an active alarm 17 AT+CALD Alarm DeleteUnsolicited result codes +CALV n AT+CALD=? +CCLK 00/01/01,225448+00 AT+CCLK=19/11/02,093000+00 18 AT+CCLK Set Clock and DateAT+CCLK? AT+CCLK=? Information given by the GSM network in text format 19 AT+CEER Extended Error Report20 AT+CFUN Set Phone Functionality AT+CIND=? 21 AT+CIND Indicator ControlAT+CIND? 23 AT+CMEE Mobile Equipment Error 22 AT+CLAC List all available AT Commands AT+CMER=? 24 AT+CMER Mobile Equipment Event ReportingAT+CMER? AT+CPAS=? 25 AT+CPAS Phone Activity StatusUnsolicited Result Codes +CKEV key,press +CIEV ind,value +CPAS 0,3,4,129,130,131 26 AT+CPIN PIN Control PH-SIM PIN AT+CPIN=0000SIM PIN2 SIM PUK2 AT+CPWD=? 27 AT+CPWD Change Password AT+CPWD=SC,0000,0001 During the handshake phase 28 AT+CR Service Reporting Control29 AT+CRC Cellular Result Code Intermediate Result Codes +CR serv AT+CSAS=? 30 AT+CSAS Save SettingsUnsolicited Result Codes +CRING type AT+CSQ +CSQ 13,99 31 AT+CSQ Signal StrengthAT+CSQ AT+CSQ=? Setting fails in an ME error, +CME Error err is returned 32 AT+CTZU Automatic Time Zone UpdateAT+CTZU? AT+CTZU=? 128 AT*E2EAMS Ericsson M2M Audio Profile Modification AudioAT*E2EAMS? AT*E2EAMS=? Audio diagram of the Codec Configure current profile pr1 to pr21 Mute Volume Description MaxVolume AT*E2EAMS? AT*E2EAMS=? *E2EAMS=0-21,255 Current default profile is AT*E2APR M2M Audio Profile Manipulation AT*E2APR= ErrorAT*E2APR? AT*E2APR=? AT*E2APR? *E2APR E2APR= 0-4,0-2,0-2 Current default profile is profile ATMS,AFMS Ericsson Audio Line RequestAT*EALR? Ealr AT*EALR=? AT*EAMS=? Ericsson Audio Mode SelectionAT*EAMS? AT*EARS=? Ericsson Audio Ring SignalAT*EARS? Ericsson Local Audio Mode AT*E2PHFB Portable Handsfree Button Sense Enable Ericsson Music Mute Indication Request Ericsson Microphone Mode AT*EPRR=? 10 AT*EPRR Ericsson Personal Ring Type ReadEprr Reserved. Not supported 11 AT*EPRW Ericsson Personal Ringtype Write Beep. Not supported AT*ERIL=? 12 AT*ERIL Ericsson Ring Level SetAT*ERIL? Eril AT*ERIN= 13 AT*ERIN Ericsson Ring SetAT*ERIN? AT*ERIN=? Refer to the AT*ERIN command for the sound type parameter 14 AT*ERIP Ericsson Ring Signal Playback CommandAT*ERIP = AT*ERIP=? 15 AT*ESMA Ericsson Set Message Alert Sound 16 AT*ESOM Ericsson Settings Own Melody Melody 1 4. Default setting AT*EXVC=? 17 AT*EXVCAT*EXVC? Modem and is only included for compatibility 18 ATM Monitor Speaker ControlATM? ATM=? 152 Data CSD/HSCSD Select Bearer Service TypeAT+CBST? AT+CBST=? Name Description AT+CRLP? Radio Link Protocol+CRLP AT+CRLP=? AT+CRLP? +CRLP 61,61,48,6,0 +CRLP 120,120,48,6,2,3 AT+CGACT PDP Context Activate or Deactivate Data Gprs+CGACT? +CGACT=? +CGATT=? AT+CGATT Gprs Attach or Detach+CGATT? +CGDATA=? AT+CGDATA Enter Data State +CGDCONT? AT+CGDCONT Define PDP ContextCRLF+CGDCONT +CGDCONT=? APN +CGEREP=? AT+CGEREP Gprs Event Reporting+CGEREP? +CGPADDR AT+CGPADDR Show PDP AddressCRLF+CGPAD +CGPADDR=? +CGQMIN=? AT+CGQMIN Quality of Service Profile Minimum Acceptable+CGQMIN? 165 +CGQREQ=? AT+CGQREQ Quality of Service Profile Requested+CGQREQ? 167 GM47/GM48 INTEGRATOR’S Manual AT+CGREG=? AT+CGREG Gprs Network Registration StatusAT+CGREG? +CGSMS=? 10 AT+CGSMS Select Service for MO SMS Messages+CGSMS? Hscsd Current Call Parameters Data HscsdAT+CHSC AT+CHSC=? AT+CHSD=? Hscsd Device ParametersAT+CHSD AT+CHSN=? Hscsd Non Transparent Call ConfigurationAT+CHSN? AT+CHSR=? Hscsd Parameters ReportAT+CHSR? Itermediate Result Codes +CHSR rx,tx,aiur,coding Hscsd Automatic User Initiated UpgradingAT+CHSU? AT+CHSU=? 176 GPS Interoperability AT*EENMEA Nmea GPS Mode on UART2Uart AT*EENMEA? AT*E2NMPR=? *E2NMPR=0-10 Port rate currently set AT*E2NMPR Ericsson M2M Set Nmea GPS Port RateAT*E2NMPR? AT*E2NMPR=? Set GPS/NMEA port rate to 4800 baud 180 AT*E2FAX Ericsson M2M Fax Comm. Baud Rate Modification FaxE2FAX= AT*E2FAX? Sets default RS232 setting to 9600 baud Low Level Fax CommandsE2FAX Current default setting is 19200 baud Supports AT commands, it returns an OK final result code 10.2 AT&F Set to Factory Defined ConfigurationIdentification 10.1 AT Lists all the commands supported by the MS 10.4 AT List all Supported AT Commands10.5 AT+CGMI Read MS Manufacturer Identification 10.6 AT+CGMM Read MS Model Identification BVGM47 10.7 AT+CGMR Read MS Revision IdentificationAbout the software version AT+CGMR 10.9 AT+GMI 10.8 AT+CGSN Read MS Product Serial Number Identification R2A009prgCXC1122112 10.10 AT+GMM Read Model Identification10.11 AT+GMR Read Revision Identification 10.12 ATI Identification Information Configuration Settings on Channel 0 &CCXC1122112 +CGACT 1,0 189 190 AT*E2IO=? Input/Output11.1 AT*E2IO Ericsson M2M Input/Output Read/Write 192 Read Reading an I/O Unsolicited Result Codes *E2IO source, io, valWriting in an Output False Checking an I/O status Configuring an I/O Checking an Input Trigger Triggering an Input 12.3 AT&D Circuit 108 DTR Response Interface12.4 AT&S Circuit 107 DSR Response Determines the behaviour of the carrier detect 12.6 ATE Command Echo 12.5 AT+WS46 Mode SelectionDetermines the behaviour of the data set ready signal Phone List of result codes 12.7 ATV DCE Response Format 12.9 AT+CMUX Switch to 07.10 Multiplex Protocol 12.8 ATZ Reset to Default Configuration 201 Parameters, cannot be restored 12.10 AT+CRES Restore SMS Settings12.11 AT+ICF Cable Interface Character Format Result code, if this is not automatically determined Not +ICF 3,3 12.12 AT+IFC DTE-DCE Local Flow ControlAT+IFC? AT+IFC=? 12.13 AT+ILRR Cable Interface Local Rate Reporting 12.14 AT+IPR Cable Interface Port CommandSpecifies whether or not the extended-format +ILRRrate Transmitted E2SPI 12.15 AT*E2SPI Serial Peripheral InterfaceAT*E2SPI? AT*E2SPI=? AT*E2SPI=0 AT*E2ESC=? 12.16 AT*E2ESC M2M Escape Sequence Guard TimeAT*E2ESC? 208 13.1 AT*E2CD Ericsson M2M Cell Description NetworkAT*E2CD? AT*E2CD=? According to GSM 04.18 V8.6.0, the coding of the timing 13.2 AT*E2EMM Ericsson M2M Engineering Monitoring Mode AT*E2EMM=1 AT*E2EMM=7 Responses. Default value is 215 216 SIM 13.3 AT*E2SPN M2M Service Provider Indication13.4 AT*EALS Ericsson Request ALS Status AT*ECSP=? 13.5 AT*ECSP Ericsson Customer Service ProfileSIM AT*EPNR=? 13.6 AT*EPNR Ericsson Read SIM Preferred Network AT*EPNW=? 13.7 AT*EPNW Ericsson Write SIM Preferred NetworkEpnr 10,27801 AT*E2SSN? 13.8 AT*E2SSN Ericsson M2M SIM Serial NumberAT*E2SSN=? SSN Sets the name tag for a selected line 13.9 AT*ESLN Ericsson Set Line NameAT*ESLN? Esln AT*ESLN=? 13.11 AT+CLCK 13.10 AT+CIMI Subscriber IdentificationAttached to the ME 234157411545420 Baoc bar all outgoing calls +CPWD 13.12 AT+CNUM Subscriber NumberAT+CNUM LF+CNUM UDI 13.13 AT+COLP Connected Line Identification PresentationAT+COLP? AT+COLP=? Disable AT+COPS=? 13.14 AT+COPS Operator SelectionAT+COPS? AT+CREG=? 13.15 AT+CREG Network RegistrationAT+CREG? +CREG 0,1 13.16 AT*ECPI Ciphering IndicatorAT*ECPI? AT*ECPI=? 231 AT*E2NBTS=? 13.17 AT*E2NBTS Ericsson M2M Neighbour BTSAT*E2NBTS? 233 234 14.2 AT*ESAG Ericsson Add to Group Phonebook14.1 AT*E2PBCS Ericsson M2M Phonebook Check Sum AT*ESCG=? 14.3 AT*ESCG Ericsson Create Group AT*ESCN=? 14.4 AT*ESCN 238 14.6 AT*ESDI Ericsson Delete Group Item 14.5 AT*ESDG Ericsson Delete Group 14.8 AT*EGIR Ericsson Group Item Read 14.7 AT*ESGR Ericsson Group ReadAT*ESGR AT*ESGR=? Is in silent mode, all sounds from the MS are prevented 14.9 AT*ESIL Ericsson Silence CommandAT*ESIL? AT*ESIL=? AT*ESNU=? 14.10 AT*ESNU Ericsson Settings NumberAT*ESNU? 14.12 AT+CPBR Phonebook Read 14.11 AT+CPBF Phonebook Find+CPBF +CPBF=? 244 AT+CPBS=? 14.13 AT+CPBS Phone StorageAT+CPBS? AT+CPBW=? 14.14 AT+CPBW Phonebook Write AT*ECAW=? 14.15 AT*ECAW Ericsson Callers Allowed Write Cluid 14.16 AT*ECAR Ericsson Callers Allowed ReadAT*ECAR= AT*ECAR=? If listing fails in a ME +CME Error err is returned 250 15.2 AT+CGSMS Select Service for MO SMS Messages Short Message Services Point to Point15.1 AT+CPIN PIN Control 15.3 AT+CPMS Preferred Message Storage +CPMS ME,0,40,SM,1,15,ME,0,40 +CPMS ME,SM,ME,SM,ME,SM AT+CPMS=sm,sm,sm +CPMS 1,15,1,15,1,15 15.4 AT+CSCA Service Centre AddressAT+CSCA? AT+CSCA=? +CSCA 44385016005,145 15.5 AT+CMGF Message FormatAT+CMGF? AT+CMGF=? AT+CMGW=? 15.6 AT+CMGW Write Message to Memory ESC Text Mode AT+CMGS=? ESC Error15.7 AT+CMGS Send Message 258 259 AT+CMSS=? 15.8 AT+CMSS Send From StorageAT+CSMP=17,167,0,0 AT+CMGS=+447747008670 Test SMS +CMGS Command is AT+CMGC=? 15.9 AT+CMGC Send Command+CMGC Text is entered ctrl-Z/ESC AT+CNMI=? 15.10 AT+CNMI New Message Indications to TEAT+CNMI? Unsolicited Result codes 266 +CBM Display cell broadcast messages AT+CNMI=3,0,2,0,0 15.11 AT+CMGR Read MessageAT+CMGR= AT+CMGR=? 269 Successful and CBM storage +CMGR 271 272 Compressed text not supported R1A100 CXC1122112 15.12 AT+CMGL List Message+CMGL AT+CMGL=? 275 AT+CMGL? AT+CMGL 277 278 279 15.13 AT+CMGD Delete Message 15.14 AT+CSDH Show Text Mode ParametersAT+CMGD=? AT+CSDH? AT+CSMP=? 15.15 AT+CSMP Set Text Mode ParametersAT+CSMP? 15.16 AT+CSCS Select Character Set +CSMS 15.17 AT+CSMS Select Message ServiceAT+CSMS? AT+CSMS=? AT*E2SMSRI=? 15.18 AT*E2SMSRIRing indicator for SMSSMS Error RI is disabled for incoming SMS messages. Default value 286 16.1 AT+CNMI New Message Indications to TE Short Message Services Cell Broadcast16.2 AT+CSCB Select Cell Broadcast Message Type See 15.10, AT+CNMI New Message Indications to TE 288 STK SIM Application ToolkitAT*E2STKS? AT*E2STKS=? AT*E2STKD=? Display Text Error17.3 AT*E2STKD M2M STK Display Text Values follow GSM 11.14 standard 17.4 AT*E2STKG M2M STK Get InkeyGET Inkey AT*E2STKG=? 292 AT*E2STKI=? 17.5 AT*E2STKI M2M STK Get InputInput Answer Description 295 AT*E2STKL=? Select Item Error17.6 AT*E2STKL M2M STK Select Item Maximum length is fixed Maximum length is fixed AT*E2STKM=? 17.7 AT*E2STKM M2M STK Set Up MenuUP Menu Error GSM default alphabet Parameters have no default values 17.9 AT*E2STKC M2M STK Set Up CallAT*E2SKTN command. The ME answers with OK, or Error Command No response from user. It corresponds to ‘12’ no response Unsolicited Result Code 17.10 *E2STKE STK Send Short MessageE2STKE coding, textlength , alphaid ME passes the alphaid within Send Short Message 17.11 *E2STKP STK Send SS 17.12 *E2STKU STK Send Ussd E2STKR indicator 17.14 AT*E2STKTO SIM Application Toolkit Settings17.13 *E2STKR STK Refresh Unsolicited Result Code Unsolicited result code *E2STKTO command 18.2 AT+CACM Accumulated Call Meter Supplementary Services18.1 AT+CPIN PIN Control AT+CAMM=? 18.3 AT+CAMM Accumulated Call Meter MaximumAT+CAMM? AT+CAOC=? 18.4 AT+CAOC Advice of ChargeAT+CAOC? AT+CPUC? 18.5 AT+CPUC Price Per Unit and Currency TableAT+CPUC=? SEK With the unsolicited result code *EDIF 18.6 AT*EDIF Ericsson Divert FunctionEdif AT*EDIF? Unsolicited Result Codes *ELIPalpha tag *EOLPalpha tag 18.7 AT*EIPS Identity Presentation SetAT*EIPS=ID AT*EIPS? 18.8 AT*ELIN Ericsson Line Set 18.9 AT*E2SSD M2M Supplementary Service DispatchAT*ELIN? AT*ELIN=? Refer to GSM 02.30 for Public MMI services and codes 18.10 AT*E2SSI M2M Supplementary Service Indications Ssinetworkproblem SsisimerrorSsinumbererr Ssicallbarred Teleservice BearerserviceBsallpadaccesscaservices Multiparty Tsalldataservices BsallsynchronousservicesTsallteleservicesexceptsms BS12KBITUNRESTRICTEDDIGITAL Temporarydefaultallowed TemporarydefaultrestrictedSsstatusprovisioned Ssstatuspra AT+CCFC=? 18.11 AT+CCFC Call Forwarding number and Conditions+CCFC Default value if ‘+’ is in sca AT+CCWA=? 18.12 AT+CCWA Call WaitingAT+CCWA? Unsolicited Result Codes +CCWA number, type, class Default value is AT+CHLD=? 18.13 AT+CHLD Call Hold and MultipartyAT+CCWA=? +CCWA Integer type equals to numbers entered before Send AT+CLIP=? 18.14 AT+CLIP Calling Line IdentificationAT+CLIP? +CLIP number,type 18.15 AT+CLIR Calling Line Identification Restriction+CLIP 07747008670,129,,,Matt L,0 AT+CLIR? Presentation indicator is used according to AT+CSSN=? 18.16 AT+CSSN Supplementary Service NotificationAT+CSSN? Enable the +CSSU result code presentation status in the TA AT+CUSD=? 18.17 AT+CUSD Unstructured Supplementary Service DataAT+CUSD? +CUSD0 OK Different alternatives are shown below AT+CUSD=1,*#100# +CUSD 0,07787154042 +CUSD0,ALARM Alphabetical Listing of AT Commands AT*E2STKM AT*E2STKLAT*E2STKN AT*E2STKS AT*ESCN AT*ESCGAT*ESDG AT*ESDI AT+CGREG AT+CGQREQAT+CGSMS AT+CHLD AT+CPBF AT+CPASAT+CPBR AT+CPBS AT+VTS AT+IPRAT+WS46 ATA

Sony Ericsson GM47, GM48 manual Interface, 12.3 AT&D Circuit 108 DTR Response, R2A

Models: GM47 GM48

12. Interface

PIN Control

See 3.26, AT+CPIN PIN Control

AT&C

Circuit 109 (DCD) Control

Determines the behaviour of the carrier detect.

12.3 AT&D

Circuit 108 (DTR) Response

0Ignore. Default value

12.4 AT&S

Circuit 107 (DSR) Response

R2A.