General Modem Problems, Error # | Sierra Wireless DART 300 instruction

ReferencesDART 300 Modem

13.3. General Modem Problems

	Problem Description	Suggestions

	Modem fails when	Check that the power source has adequate voltage and current. The
	transmitting.	modem requires up to 1 Amp of regulated 12 V DC power. If the power
	The LED indicator does not	is marginal it can be the problem. The power output is a function of the
	The LED indicator does not	modem’s distance from the Mobile Data Base Station. It is possible for
	light.
	light.	the modem to work well with a particular power supply in a location

		requiring low power output (low current draw), and yet to fail using the
		same power supply in a location requiring a high power output.
		Check the amperage rating of the power supply to verify that it is
		adequate for all situations.
		Check the fuse (if any) in the power source and as a final test use a
		voltmeter to check for an open cable.
	Fails to respond to AT	Verify that you are using the correct COM port and communication
	commands.	parameters (speed, data bits, parity, etc.)
		Verify the serial cable connections and cable type (DTE-DCE or null-
		modem), and that hardware flow control is enabled (or RTS and DTR
		are asserted).
		Power cycle the modem. Verify the modem is powered on and allow
		for 10 seconds initialization time.
		If Auto-dial on Start-up has been set, try issuing the escape sequence
		(TIES or TDES) or toggling DTR, to return to the AT command
		processor.
		Enter the command ATE1Q0. This will enable the modem to echo
		your keystrokes and disable the quiet mode (suppression of return
		codes).
		Enter the command AT&F. This restores factory defaults.
	AT commands are sent to	Ensure you have saved the configuration using &W. Following this,
	configure the modem but the	issue Z (reset) and check the settings.
	modem does not use the	Verify that the application does not send its own modem setup
	settings when running an
	settings when running an	commands after you have configured the modem. If it does, then either
	application.
	application.	disable the feature or set your DART 300 configuration within the

		application’s setup string.

	Modem reports NO RADIO	Reset or power-cycle the modem. If the problem persists contact Sierra
	ERROR (#).	Wireless technical support.

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2110212 Rev 1.0

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Sierra Wireless manual General Modem Problems, ReferencesDART 300 Modem, Error #

Contents

2110212 Rev November Sierra Wireless Dart 300 Cdpd Modem Copyright Safety and HazardsImportant Notice Patents Regulatory Information Contact Information RSA Licensee Dart 300 Modem User’s Guide 2110212 Rev Contents Introduction Cdpd Network Registration Feature Reference Transmission Control Protocol TCP Protocols and Packet Assembly Features Intstallation Configuration and Use 119 Installation ConsiderationsAT Commands and Status Registers References Specifications 123 Focus List How to ProceedAbout this Guide Introduction Introduction Dart 300 Modem Book 2 Feature ReferenceBook 3 Configuration and Use Document Structure Book 5 References Dart 300 ChecklistBook 4 Installation User’s Guide About This Guide Dart 300 / SB300 ReferencesCurrency Conventions Used in this Reference Dart Introduction Dart 300 Modem 2110212 Rev Typical System View System Overview Network Connection Field Stage 1 Application Planning Project StagesCentral Monitor Client / Server Stage 4 Rollout Stage 2 Bench Integration and TestingStage 3 Field Installation and Testing Getting Started Service Activation Serial Cable Power SupplySet-up Considerations Antenna User’s Guide Getting Started Cdpd ConfigurationConnections Verifying Network Registration Cdpd Network Registration Ping Obtaining a Ping from the Modem Modes Local DTE/DCE InterfaceModem Modes and States Sessions Command to Data StateStates Conditions Details Data to Command StateUser’s Guide Local DTE/DCE Interface Speed Buffering Command BufferModem Buffers Data Buffers Responses and Results Returned by the Modem AT Command Handling and DefaultsGeneral Notes Parameters Responses FramingFraming Characters Result Framing No Response Echo Verbose Quiet For Commands without a ResponseResult Codes Response Framing Echo Verbose Quiet Result Framing After Response Echo Verbose Quiet For Commands with a ResponseRegisters Possible Result Codes Flow Control RS-232C Interface and Control SignalsInterface Settings Fixed Rate Setting +IPR Data Terminal Ready DTR Control SignalsDTR Flow Control Clear to Send CTS Ring Indicator RIData Set Ready DSR Request to Send RTS DCD Data Carrier Detect DCD Friends Only Product Features Implementation Dial Directory Auto-dial on Start-up User’s Guide Product Features Sleep Mode Logic Sleep Cdpd Sleep To force re-registration now Using Ring Indicator RI with Host SleepLogic Deep Sleep UDP/TCP Upgradability Cdpd Radio and Booster Support OSI Model Protocols and Packet Assembly FeaturesCommunication Protocols and Stacks Dart 300 Internal Protocol Stacks Packet Service ModesUser Datagram Protocol UDP UDP Server Receive Lock UDP Server FeaturesUser’s Guide Protocols and Packet Assembly Features Answering UDP Server Sessions Disabling the UDP Server Closing UDP Sessions UDP Client Features Multicast Configuration and UseUDP Broadcast and Multicast Broadcast Answering TCP Server Sessions TCP Server FeaturesTransmission Control Protocol TCP TCP Handshaking Disabling the TCP Server TCP Client FeaturesClosing a TCP Session Point-to-Point Protocol PPP TCP and Sleep ModeSerial Line Interface Protocol Slip Local Echo Packet Assembly ManagementAssembling a Packet Forwarding a Packet Time Dependent Escape Sequence Tdes Escaping Data State Escape Character Important RelationshipsGuard Time Time Independent Escape Sequence Ties TCP Remote Disconnect PAD Session TimeoutData and Telemetry Considerations DTR Transition User’s Guide Protocols and Packet Assembly Features Feature Reference Dart 300 Modem 2110212 Rev Multiple Cdpd Accounts Advanced Features Channel Scanning Controlling Network RegistrationChannel Acquisition Assign a Channel User’s Guide Advanced FeaturesSide Preference Spni Matching Determining Channel Acquisition Status Spni Table ConfigurationDisable Spni Matching Enable Spni Matching Active and Auto-register NEI Indices Registration Determining Registration Status Automatic RegistrationManual Registration +WPNEILIST De-registration Monitoring the Network Connection LED IndicatorRadio Signal Monitors Registration Status Registration Mode Feature Reference Dart 300 Modem 2110212 Rev NEI and Channel Restrictions UDP/TCP ServiceConfiguration Checklist for UDP/TCP Service Configuration and Use Dart 300 Modem Registration and Sleep ModeService Options Escape Options Packet Assembly and Forwarding OptionsUser’s Guide UDP/TCP Service Server Initialization Using UDP/TCP ServiceSave Configuration Server Sessions Receiving Data Using an Open UDP SessionUDP Server Sessions Opening a UDP Server Session Opening a TCP Server Session TCP Server SessionsTransmitting Data Closing UDP Server Sessions Using an Open TCP Session UDP Client Connection Client SessionsClosing TCP Server Sessions No Carrier result TCP Client Connection By +WS198 Closing a Client Session Using a Client Session DCE male Sample UDP/TCP ConfigurationsCase 1 Semi-intelligent RTU Cabling Modem Configuration +IPR=9600 Case 2 Dumb MeterProtocol Considerations +WS213=1 Sample Configuration Meter Command Remarks +WPNEI= ip+WS179=0 +WS212=0 Using This Configuration Configuration and Use Dart 300 Modem 2110212 Rev Configuring Slip Service SLIP/PPP Service Configuration and Use Dart 300 Modem Escaping Data State Using Slip ServiceTransmitting Receiving Closing a Slip Session Configuring PPP ServiceUsing DTR to Escape Point to Point Protocol PPP User’s Guide SLIP/PPP Service Closing a PPP Session Using PPP Service User’s Guide SLIP/PPP Service Configuration and Use Dart 300 Modem 2110212 Rev Antenna Connection Device Attachment Connection Installation Dart 300 ModemWatt Class I Booster Operation User’s Guide Device Attachment Serial ConnectorPin Signal Direction Null-Modem Connection DCE host Cable LengthDCE modem Power Connection Installation Dart 300 Modem 2110212 Rev Minutes Time Ambient Temperature C Installation ConsiderationsTemperature and Auto Shutdown Temperature vs. Duty Cycle Grounding AccessPower Supply Wire Splicing User’s Guide Considerations MountingCrimp Terminals Installation Dart 300 Modem 2110212 Rev AT+++ AT Commands and Status RegistersAT Command Set 1AT Commands in Cdpd Mode Command Description Result Codes AT Commands in Cdpd Mode Command Description 0xC0References Dart 300 Modem Options User’s Guide AT Command ReferenceAT Commands in Cdpd Mode Description Options AT Commands in Cdpd Mode Sn? Quiet Result Code Display OptionFraming of responses. See .3.3 for details Sn=x AT & Commands in Cdpd Mode Description AT Commands in Cdpd Mode Command Description Command Description +IPR=n AT + Commands in Cdpd Mode Change c.c.c.c to n.n.n.n? AT + Commands in Cdpd Mode Command Description +WPSPNI= n,n,...n Change c.c.c.c.q to n.n.n.n.p? +WSn? Auto-answer Registers in Cdpd ModeS-Registers in Cdpd Mode Description Range Default Units Cdpd Status Registers Word DisabledOff Logic Sleep WS-Registers in Cdpd ModeWS-Registers in Cdpd Mode Description Range Default Units PAD Packet Service DTE side stack References Dart 300 Modem PAD Inter-Character Timer 175 174 User’s Guide AT Command Reference 210 201209 217 216 Result Codes +WS197, also setting +WS176=+WS197Result Codes in Cdpd Mode Verbose Meaning Important Notes and Dependencies Stored Profile Settings for Cdpd Mode References Dart 300 Modem 2110212 Rev Problem Description Suggestions TroubleshootingGeneral Communication Problems ReferencesDART 300 Modem General Modem ProblemsError # User’s Guide Troubleshooting Cdpd Network / Connectivity ProblemsWarranty Warranty Registration Obtaining Service Power Connector SpecificationsPower Specifications Radio Specifications FCC Antenna SpecificationsAntenna Specifications Regulatory Approvals Environmental Specifications Environmental SpecificationsApplication Interface Specifications User’s GuideSpecifications