ATS25 DTR Loss Detection | Telenetics 56 manual

ATS25 DTR Loss Detection

S Register 25 determines the time, in hundredths of a second, the DTR (Data Terminal Ready) signal must remain low before the modem will recognise a loss of DTR.

Examples

ATS25=8	DTR must remain low for 0.08 seconds before the modem will recognise loss
	of DTR
Default
5
See Also
&D DTR mode
Range
0-255

Page 220

Image 220

Telenetics 56 manual ATS25 DTR Loss Detection

Contents

Global Carrier 56 Modem User’s Guide Page Technical Support Contact InformationMailing List Contents 106 203 248 Error Correction Dumb ModeAT Commands RS-232 Signals Unpacking Your Hardware Additional Items You Need Hardware Overview Back ViewFront View DTE RS232 Installation Summary Finding a Suitable Location Set Connector Power Input Connecting the CablesTelco/Dial Line Telephone Windows Driver InstallationWindows ME Modem LED Display Line Modulation One Front Panel Mode LEDsThree Four Multiple Commands AT CommandsEscape Sequence Repeat Command Help Command Response Codes Dialling Dial Modifiers Stored Number Dialling Hanging UpAnswering Calls ATCommands Selecting Speeds Terminal Speeds 90 & V.34 Typical Settings Setting Terminal SpeedsLine Speeds 32bis Modem Typical Settings Example 3 Dialling information services at 1200 bps orExample 2 Dialling other modems at 19,200 bps V.34 or V.FC Example 2 Dialling other modems at 14,400 bps or V.32bis Example 3 Answering incoming calls Flow Control RTS/CTS Flow ControlXON/XOFF Flow Control Transparent XON/XOFF Flow Control Inactivity Timer Command TimerFailsafe Flow Control AT\T5 Configuring the Modem Viewing the Current Configuration Error Correction Error Correction Protocols Auto-Reliable Mode Reliable ModeData Compression Improving Performance with MNP Speed Changes Cellular Modem Users ATCommands Entering a Security Password Security Menu Adding and Changing Users Removing Users Access RecordListing Existing Users Enabling Modem Security Quitting the Menu Callback Security Downloading the Security File Integrating Caller ID into the Security Database Encryption SuperSecure Advanced Security Mode DES Multikey Entering a Key for Each User Accessing a System Using SuperSecure Ringing Password Expiry Option Enabling Rotating Secondary Keys Entering a New Password in the Local Modem’s Database Entering a Password in the Remote Modem’s DatabaseMinimum Password Length Outdial Disable Option Security Database Lock Option Dial Stored Phone Numbers Only Option General Notes on Data Security Synchronous Modes Synchronous Operation Selecting Synchronous Mode Synchronous ModeDialling Hanging Up Answering Calls Dialling Calling and AnsweringUsing &L1 Smart Leased- Line ModeLeased Line Operations Auto Leased Line Operation &L2 or &L3 Wire Leased Line setup via audio port Setting Up your Modem Selecting Communications Speeds Dialling in Dumb Mode Hints for Unix Computers and Multiplexers Using the Talk /Data Button to Dial Using DTR to Dial Answering Calls in Dumb Mode Manual Answering Option Switches SwitchDescription AT%F 25bis Operations Selecting V.25bis Operation 25bis Commands Overridden SettingsData Formats 25bis Indications Verbal Meaning Hanging Up Direct Dialling Selecting Speeds DB25 Pin Signal Modem CableSynchronous Character Encoding Asynchronous Notes Hdlc Notes AT-SDR=0 Distinctive Ring CommandsAT-SDR=7 Caller ID Enabling the Caller ID Function AT#CID? Integrating Caller ID into the Security DatabaseAT#CID=? Distinctive Ringing ‘Tune’ Option Call Logging Call Log Format Options +++ Escape SequenceSee Also Remote Access Sequence ATA, ATD, ATH, ATZ, AT&T Request remote access AT? AT? Interactive Command HelpAT?&T Repeat Last Command ATA Answer Command Speed ATBn Select Communications Standard B10 32 at 4800bps B11 32 at 7200bps B12 See Also ATD Dial Example Dial Modifiers Pause Reverse mode Return to local command state@ wait for quiet answer Or disable calling tones Initiate MNP 10 at 1200 bpsMNP 10 Cellular Option Last number redial =n dial stored phone number n Hook flashWait for dial tone See Also Range ATE EchoATE0 ATH Hang Up ATH0ATH1 ATH2 ATI Identity ATL Speaker Volume Control Range See AlsoATL0 ATL1 ATM Monitor ATM0ATM2 ATM3 ATO Return to On-line State ATO27 ATO28ATO29 ATO30 ATQ1 ATQ Quiet Suppress Response CodesATQ2 ATR Set Terminal Speed ATR26 ATR28ATR38 ATR57 ATSn? Display S Register Value ATSn= Set S Register Value ATV Verbal Response Codes Verbal Numeric Meaning ATW0 ATW Connection Speed InformationATW1 ATX Extended Response Codes Command ATZn Restore Configuration Profile ATZ0ATZ1 ATZ2 AT&B Character Length Range Options AT&C Controlling Data Carrier Detect AT&C0AT&C2 AT&C3 AT&D Controlling Data Terminal Ready AT&D0AT&D1 AT&D3 AT&F. Reinitialise Modem AT&F Restore Factory Defaults AT&F0AT&F1 AT&F2 AT&G1 AT&G Guard ToneAT&G2 AT&H Clock Control AT&H1 AT&K Flow Control AT&K0AT&K4 AT&K5 Modem to the computer AT&L Leased Line AT&M Synchronous/Asynchronous Mode AT&M1AT&M2 AT&M4 Range See Also AT&N Abort Connection AT&N0 AT&R RTS/CTS Control AT&R1 AT&S1 AT&S Controlling DSRAT&S2 AT&Vn View Active Configuration Profile AT&Wn Write Configuration Parameters AT&W0AT&W1 AT&W2 AT&X1 AT&X Transmit ClockAT&X2 AT&Yn Select Stored Profile on Power Up AT&Y0AT&Y1 AT&Y2 AT&Z Stored Phone Number AT#A0 AT#A Universal Remote AccessAT#A1 Range AT#B 1200bps Originate Mode AT#B1 AT#C V.25 Calling Tones AT#C0 AT#CID Caller ID AT#CID0 AT#CID1AT#CID2 AT#CID3 AT#D V.25bis Direct Calling AT#D1 AT#E Encryption AT#E1AT#E2 AT#E3 AT#H Display Help AT#I V.22bis Leased Line AT#I1 AT#J V.42 Capability Checking AT#J0 AT#K0 AT#K MNP 10 modeAT#K2 AT#M Command Mode Selection AT#M1AT#M2 AT#M3 AT#N V.25bis Character Encoding AT#N1 AT#O Buffer Overflow AT#O1AT#O2 AT#O3 AT#Q V.25bis Terminal Speed AT#R Enable Remote Control AT#S Security Menu AT#U V.25bis Character Set AT#U1 AT#V Verifier AT#V0 AT%B AutoAnswer Setting AT%B2 AT%C Compression Control Examples AT%D Set Disconnect Delay AT%E0 AT%E Auto EQM RetrainAT%E1 AT%F DTR/DSR override AT%F0 AT%H MNP 10 Negotiation Speed AT%H1AT%H2 AT%H3 AT%K CTS During Dial and Handshake AT%K1 AT%L Display Line Signal Level AT%Ln Transmit Level Data Mode 11-19 AT%M Mode LED Indication AT%M1 AT%N1 AT%N Non-Standard Terminal SpeedsAT%N2 AT%P Connect Message Timing AT%P1 AT%Q Line Signal Quality AT%Q AT%R1 AT%R CTS OverrideAT%R2 AT%S DSR Override AT%S1 AT%T DCD Override AT%T1 AT%U1 AT%U V.42 Response CodesAT%U2 AT%W Welcome Message AT%W1 AT\A MNP Block Size AT\A0AT\A1 AT\A2 AT\Bn Generate Break Default See AlsoAT\B4 AT\J Auto-Reliable Fallback AT\J1 AT\K Break Control Default AT\N Asynchronous Operating Mode See Also AT\Q Extended Flow Control AT\S Display Active Configuration AT\S AT\Tn Inactivity Timer Data Mode AT\V Error Correction Response Codes AT\V1AT\V8 AT\V9 AT\X XON/XOFF Pass Through AT\X1 Default Range See Also AT*K Select Primary DES KEY from Stored Keys AT*R V.13 Remote RTS Signalling AT*R1 AT*S Change Current User Password AT*T Auto Call Redial AT*T1 AT*V Maximum V.42bis Dictionary Size AT*V1 AT*W Welcome Message Text AT*Y Escape Seq. Detection in Sync AT*Y1 AT+ICF Character Framing and Parity Select AT+MS Select Modulation Mod Automode Maxrate MinrateXlaw Connecting with 56k technology RbsignalingNn Automode AT+MS=? Reporting Supports Options +MS AT-Q MNP10 Fallback to V.22bis AT-Q0 AT-DATE Time & Date AT-LOG AT-LOG Call LogAT-LOG2 ATE V.32 compromise Equaliser 25BIS CIC Connect Incoming Call 25BIS CRN Dial Modifier Meaning CRS command Dial Stored Number Register 25BIS CRS Dial Stored Number 25BIS DIC Disregard Incoming Call 25BIS PRN Stored Phone Number CRS 25BIS RST Reset Introduction Register Settings and Modem MemoryReading and Changing S Registers Page Default Range ATS0 Rings Before Answer ATS1 Ring Count ATS2 Escape Sequence Character Default Example ATS3 Carriage Return Character ATS4 Line Feed Character ATS5 Backspace Character ATS6 Dial Tone Wait Time ATS7 Wait for Carrier ATS8 Pause Dial Modifier Delay ATS9 Carrier Detect Response Time ATS10 Lost Carrier/Hang Up Delay ATS11 Dtmf Tone Timing ATS12 Escape Sequence Guard Time ATS16 Test in Progress read only ATS16 ATS18 Test Timer ATS25 DTR Loss Detection ATS26 RTS/CTS Delay ATS27 Delay Before Dial ATS29 Hook Flash Duration Data Mode ATS30 Inactivity TimerVoice Mode ATS105Voice ‘Dead-man’ Timer ATS33 EQM Threshold Value ATS38 Disconnect Delay ATS42 Modem Disconnect Reason Value Meaning ATS43 Break Sequence Length ATS45 V.22bis EQM Threshold Value ATS57 DTR High Detection ATS62 V.42 Detection Timer ATS66 Remote Access Guard Time ATS67 Remote Access Character ATS69 Command Line Time-out ATS71 Ignore Incoming Call ATS74 Disconnect Reason for Prev. Call ATS80 Flow Control High Water Mark ATS81 Flow Control Low Water Mark ATS82 Failsafe Flow Control Overrun ATS95 Extended Response Codes ATS96 Help Page Width ATS97 Help Page Length ATS105 Voice ‘Dead Man’ Timer ATS30 ATS122 AutoRateChange EQM ATS123 AutoRateChange ATS124 Duration EQM Modem Response Codes Modem Response Codes 25bis Indications Signal Ground SG Pin Transmit Data TxD PinReceive Data RxD Pin Request To Send RTS Pin Ring Indicator RI Pin Data Carrier Detect DCD PinTransmit Clock TxC Pin Receive Clock RxC Pin Standard RS-232 Examples Abbreviated Command List General CommandsPage Answer mode Page #CID0 S0=0 No AutoAnswer Mod Possible Rates bps Distinctive Ring Commands Dial Modifiers AbbreviatedCommandList Page Ansi Ascii BBS BPS Contention Character SetClear to Send CTS Clock CRT CPUCTS DCD DCE DTE Ebcdic EepromEIA Mail ENQ ETX Hdlc Header Hertz HzHorizontal Redundancy Checking HRC Host Computer ITU ISOLED Log on Log OffLongitudinal Redundancy Check Loopback NAK Pabx PBX PEP Prom RAM ROM RTSSdlc SIG SOH STX SYN XON/XOFF ZModem Command Sets Caller ID Error Correction EncryptionEnvironmental Humidity Product Warranty RMA Procedure Return Merchandise Authorization RMA Procedure Compliances Department of Canada Statement Compliances