Table A-3 Modem ± VF Connection Symptom Action | Paradyne 3830

COMSPHERE 3800 Series Modems ± Model 3830

Table A-3

(1 of 4)

Modem ± VF Connection

Symptom	Action

Modem does not receive	Attach the telephone directly to the wall outlet
a dial tone	to verify that a dial tone exists.
	Make sure the VF line is connected to the
	modem's rear jack labeled Dial.

Modem does not go	Verify that the Auto-Answer Ring Count
off-hook and answer an	configuration option (S-Register 0) is set to a
incoming call	value other than 0 (disable).
	Verify that the DTE is providing DTR to the
	Verify that the DTE is providing DTR to the
	modem.

	If the DTE does not provide DTR to the
	modem, verify that the modem's &D command
	(DTR Action configuration option) is set for
	Ignore (&D0).

	Verify that all cables are attached to the
	correct connectors on the rear of the modem.

Modem goes off-hook,	Perform a Local Analog Loopback test and
answers, but does not	verify that data entered at the DTE is echoed
connect	back to the DTE.

	Verify that the originating modem is
	compatible.

	Verify that originating modem recognizes your
	modem's answer tone.

A-4

August 1998

3830-A2-GB91-30

Image 90

Paradyne 3830 manual Table A-3 Modem ± VF Connection Symptom Action

Contents

Comsphere 3800 Series Modems Model Comsphere Series Modems Model Warranty, Sales, and Service Information Trademarks Important Safety Instructions Safety Instructions F FC FC F CCC C FC CC FC C C Government Requirements and Equipment Return United States Comsphere 3800 Series Modems ± Model Switched Telephone Network Canada Comsphere 3800 Series Modems ± Model Table of Contents AT Command Set and S-Registers Appendices List of Figures Figures List of Tables Tables How to Use this Manual PrefaceObjectives and Reader Assumptions Related Documents Introduction Overview Features Status Indicators LEDs Model 3830 Front Panel Model 3830 LEDs Label Color Indicates Model 3830 LEDs Label Color Indicates Rate Comsphere 3800 Series Modems ± Model August Model 3830 Modem Installation Model 3830 Modem Package Model 3830 Installation Customer- Supplied Equipment Model 3830 Rear Panel DTE Connection Dial-Line Connection Wire Leased-Line Connection AC Power Transformer ConnectionTelephone Connection Communications Software Installation Modem Power-Up Selecting Factory Configuration Options Type AT&Fy&Wn Recovering AT Commands Press Enter Initialization Strings 25bis Applications Synchronous Leased-Line Applications AT&T Exclusive Dialing for Datakit Applications Fax Operation Fax Operation Comsphere 3800 Series Modems ± Model AT Command Set and S-Registers Operating Modes Switching Between Data Mode and Online Command Mode Escape Sequence and Escape Guard Time Command Guidelines Result Codes Result Codes Connection at 7200 bps Connection at 16,800 bps AT Command List  Answer Mode Model 3830 AT Commands  AT Command Recovery Mode Repeat Last Command  ITU-T/Bell Mode Model 3830 AT Commands Dn  Dial ATD9,5551234 Hn  Hook Switch Control Model 3830 AT CommandsEn  Command Character Echo DS=n  Dial Stored Number  Return to Online or Data Mode Model 3830 AT Commands  IdentificationLn  Speaker Volume Mn  Speaker On/Off Sn?  Display S-Register Model 3830 AT Commands Qn  Result CodesSn=r  Change S-Register  Tone Dial Extended Result Code Zn  Reset and Load Active Yn  Long Space Disconnect Model 3830 AT Commands Cn  LSD Control Model 3830 AT Commands Dn  DTR Action Fn  Select Factory Default Configuration Options G0 Disable Option ValueGn  V.22bis Guard Tone Ln  Leased Mode Jn  Dial Transmit Type Comsphere 3800 Series Modems ± Model Model 3830 AT Commands Model 3830 AT Commands Sn  DSR Control Model 3830 AT Commands Tn  Tests Model 3830 AT Commands Vn  View Configuration Options Wn  Write Save to MemoryXn  Transmit Clock Source Model 3830 AT Commands Zn=x  Store Telephone Numbers \An  Maximum Frame Size\A3 Model 3830 AT Commands \Cn  Error Control Negotiate Buffer \Dn  CTS Control\Gn Modem to Modem Flow Control Break Buffer Control Model 3830 AT Commands Nn  Error Control Mode \Q2 Model 3830 AT Commands \Tn  No Data Disconnect Timer An  Error Control Fallback Character\ Xn  XON/XOFF Passthrough Flow Control Model 3830 AT Commands Bn  Modulation and Data Rate Model 3830 AT Commands Cn  MNP5 Data Compression Rn  DTE Rate″ Hn  V.42bis Compression Register List Model 3830 S-Registers S0  Auto-Answer Ring Number S4  Line Feed Character Model 3830 S-Registers S2  AT Escape CharacterS3  Carriage Return Character S5  Backspace Character S8  ``,º Pause Time for the Dial Modifier S7  No Answer TimeoutModel 3830 S-Registers S6  Blind Dial Pause S10  No Carrier Disconnect Model 3830 S-Registers S18  Test Timeout S26  RTS-to-CTS DelayS34  1800 Hz Training Tone Model 3830 S-Registers S35  Auto Redial Leased Line S36  Rate Auto Originate Model 3830 S-Registers S37  Auto Redial S38  DTR Cont Repeat Model 3830 S-Registers S39  Receive Buffer Disconnect Delay S41  Dial-Line Rate Model 3830 S-Registers S43  V.32bis Train S44  Leased-Line RateS45  Leased Line Transmit Level Model 3830 S-Registers S46  Bad Lines Auto Originate S47  Auto Dial Standby S49  Transmit Buffer Disconnect Delay Model 3830 S-Registers S48  Leased Line Carrier On LevelS51  DTE Remote Loopback CT140 Model 3830 S-Registers S52  DTE Local Loopback CT141 S55  Access from RemoteS56  Remote Access Password S53  V.54 Address S59  Remote Access Password Model 3830 S-Registers S57  Remote Access PasswordS58  Remote Access Password S61  CT111 Rate Control Model 3830 S-Registers S62  V.25bis Coding S63  V.25bis Idle CharacterS64  V.25bis New Line Character Model 3830 S-Registers S65  Line Current Disconnect S66  NMS Call MessagesS67  Directory Location 1 Callback S75  Network Management Address Model 3830 S-Registers S69  Make Busy Via DTRS74  Network Position Identification S76  V.32bis Autorate Dial Line Model 3830 S-Registers S77  DTR Alarm Reporting S78  V.32bis Automode Dial Line S81  Leased Line Signal Quality Retrain S82  V.32bis Autorate Leased Line Model 3830 S-Registers S84  AT Command Mode S88  Straps When DisconnectedS85  Fast Disconnect Model 3830 S-Registers S89  V.42 ARQ Window Size Increase S90  DTE Rate = VF Rate Model 3830 S-Registers S91  Cellular Enhancements S93  RJ11 Cellular Adapt Comsphere 3800 Series Modems ± Model August Troubleshooting a Symptom Action Table A-1Modem Health Table A-2 Modem ± DTE Connection Table A-3 Modem ± VF Connection Symptom Action Modem Ð DTE Connection Modem ± VF Connection Table A-4 Online Operation Table A-5 Leased-Line Operation Technical Specifications B Technical Specifications Table B-1 Model 3830 Technical Specifications Description Compatibility Power Error Control EIA-232-D Pin Assignments Signal Circuit Pin Source FunctionPin Assignments C Table C-1 EIA-232-D Pin Assignments RS-232 Name Signal Source Circuit Function VF Connector Pin Assignments Comsphere 3800 Series Modems ± Model Center Leased Comsphere 3800 Series Modems ± Model ITU-T V.25bis Dialing Commands Response D Call Request Commands Call Response Call Request with Number Provided CRNCall Request with Stored Memory Address Provided CRS Call Connecting CNX Call Failure Indication CFI Disregard Incoming Call DIC Call Answer CommandsIncoming Call INC Connect Incoming Call CIC Program Normal PRN Request List of Stored Numbers RLNList Stored Number Response LSN Command Response Valid VALInvalid INV Call Request Commands List Response Comsphere 3800 Series Modems ± Model Glossary Active Operating Asynchronous CSA DCE DOC FCC ITU-T JM8 PBX Pstn Xoff Comsphere 3800 Series Modems ± Model Glossary-12 Symbols Index Index-2 Index Index-4 DTR Index-6 Index-7 Index-8 Index-9 Index-10 Index-11 Index-12