System Overview, Typical System View | Sierra Wireless DART 300

2.System Overview

Sierra Wireless’ DART 300 modem provides fast, reliable, cost effective communications for your fixed-location data, telemetry, or SCADA application. Remote terminals are often in “out of the way”, “hard to get to” locations. The DART 300 provides the reliability and high performance that you demand and rely on for these mission critical systems.

Figure 2-1: DART 300 CDPD Modem

The DART 300 is a full duplex, 0.6 Watt, wireless radio modem that provides communications over the Cellular Digital Packet Data (CDPD) network.

Its low power needs, and specific telemetry features make it the ideal solution for applications such as water distribution and management, oil and gas distribution, electricity distribution, electronic traffic signs, and many others. With its internal UDP and TCP stacks, it can be used with a wide variety of remote devices and equipment.

Before beginning the integration of the DART 300 into a system, it is useful to have a look at the system as a whole and the common project development steps to full implementation.

2.1. Typical System View

Most installations of the DART 300 are in fixed (non-mobile) locations where a device in the field is collecting data, a meter or Remote Telemetry Unit (RTU) for example, or controlling something, a valve or display board perhaps. Since CDPD is wireless, it can also be used in mobile applications (although power supply may be an issue).

The unit is typically polled for data by a host system, which usually monitors or controls several field units. In some cases the field device initiates messages based on detected events.

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Sierra Wireless DART 300 manual System Overview, Typical System View

Contents

Sierra Wireless Dart 300 Cdpd Modem 2110212 Rev November Patents Safety and HazardsImportant Notice Copyright Regulatory Information RSA Licensee Contact Information Dart 300 Modem User’s Guide 2110212 Rev Contents Introduction Feature Reference Cdpd Network Registration Protocols and Packet Assembly Features Transmission Control Protocol TCP Configuration and Use Intstallation References Installation ConsiderationsAT Commands and Status Registers 119 Specifications 123 Introduction How to ProceedAbout this Guide Focus List Document Structure Book 2 Feature ReferenceBook 3 Configuration and Use Introduction Dart 300 Modem User’s Guide About This Guide Dart 300 ChecklistBook 4 Installation Book 5 References Conventions Used in this Reference ReferencesCurrency Dart 300 / SB300 Dart Introduction Dart 300 Modem 2110212 Rev System Overview Typical System View Field Network Connection Client / Server Project StagesCentral Monitor Stage 1 Application Planning Stage 2 Bench Integration and Testing Stage 3 Field Installation and TestingStage 4 Rollout Service Activation Getting Started Antenna Power SupplySet-up Considerations Serial Cable Cdpd Configuration ConnectionsUser’s Guide Getting Started Cdpd Network Registration Verifying Network Registration Ping Obtaining a Ping from the Modem Local DTE/DCE Interface Modem Modes and StatesModes Conditions Command to Data StateStates Sessions Data to Command State User’s Guide Local DTE/DCE InterfaceDetails Data Buffers Command BufferModem Buffers Speed Buffering Parameters AT Command Handling and DefaultsGeneral Notes Responses and Results Returned by the Modem Framing Framing CharactersResponses Response Framing Echo Verbose Quiet For Commands without a ResponseResult Codes Result Framing No Response Echo Verbose Quiet Possible Result Codes For Commands with a ResponseRegisters Result Framing After Response Echo Verbose Quiet Fixed Rate Setting +IPR RS-232C Interface and Control SignalsInterface Settings Flow Control Control Signals DTR Flow ControlData Terminal Ready DTR Request to Send RTS Ring Indicator RIData Set Ready DSR Clear to Send CTS Data Carrier Detect DCD DCD Product Features Friends Only Dial Directory Implementation User’s Guide Product Features Auto-dial on Start-up Sleep Mode Cdpd Sleep Logic Sleep Using Ring Indicator RI with Host Sleep Logic Deep SleepTo force re-registration now UDP/TCP Cdpd Radio and Booster Support Upgradability Protocols and Packet Assembly Features Communication Protocols and StacksOSI Model Packet Service Modes User Datagram Protocol UDPDart 300 Internal Protocol Stacks Answering UDP Server Sessions UDP Server FeaturesUser’s Guide Protocols and Packet Assembly Features UDP Server Receive Lock Disabling the UDP Server UDP Client Features Closing UDP Sessions Broadcast Configuration and UseUDP Broadcast and Multicast Multicast TCP Handshaking TCP Server FeaturesTransmission Control Protocol TCP Answering TCP Server Sessions TCP Client Features Closing a TCP SessionDisabling the TCP Server TCP and Sleep Mode Serial Line Interface Protocol SlipPoint-to-Point Protocol PPP Forwarding a Packet Packet Assembly ManagementAssembling a Packet Local Echo Escaping Data State Time Dependent Escape Sequence Tdes Important Relationships Guard TimeEscape Character Time Independent Escape Sequence Ties DTR Transition PAD Session TimeoutData and Telemetry Considerations TCP Remote Disconnect User’s Guide Protocols and Packet Assembly Features Feature Reference Dart 300 Modem 2110212 Rev Advanced Features Multiple Cdpd Accounts Controlling Network Registration Channel AcquisitionChannel Scanning Spni Matching User’s Guide Advanced FeaturesSide Preference Assign a Channel Enable Spni Matching Spni Table ConfigurationDisable Spni Matching Determining Channel Acquisition Status Registration Active and Auto-register NEI Indices Automatic Registration Manual RegistrationDetermining Registration Status De-registration +WPNEILIST LED Indicator Radio Signal MonitorsMonitoring the Network Connection Registration Mode Registration Status Feature Reference Dart 300 Modem 2110212 Rev UDP/TCP Service Configuration Checklist for UDP/TCP ServiceNEI and Channel Restrictions Registration and Sleep Mode Service OptionsConfiguration and Use Dart 300 Modem Packet Assembly and Forwarding Options User’s Guide UDP/TCP ServiceEscape Options Server Sessions Using UDP/TCP ServiceSave Configuration Server Initialization Opening a UDP Server Session Using an Open UDP SessionUDP Server Sessions Receiving Data Closing UDP Server Sessions TCP Server SessionsTransmitting Data Opening a TCP Server Session Using an Open TCP Session No Carrier result Client SessionsClosing TCP Server Sessions UDP Client Connection By +WS198 TCP Client Connection Using a Client Session Closing a Client Session Cabling Sample UDP/TCP ConfigurationsCase 1 Semi-intelligent RTU DCE male Modem Configuration Case 2 Dumb Meter Protocol Considerations+IPR=9600 +WS212=0 Sample Configuration Meter Command Remarks +WPNEI= ip+WS179=0 +WS213=1 Using This Configuration Configuration and Use Dart 300 Modem 2110212 Rev SLIP/PPP Service Configuring Slip Service Configuration and Use Dart 300 Modem Receiving Using Slip ServiceTransmitting Escaping Data State Point to Point Protocol PPP Configuring PPP ServiceUsing DTR to Escape Closing a Slip Session User’s Guide SLIP/PPP Service Using PPP Service Closing a PPP Session User’s Guide SLIP/PPP Service Configuration and Use Dart 300 Modem 2110212 Rev Device Attachment Antenna Connection Installation Dart 300 Modem Watt Class I Booster OperationConnection Null-Modem Connection Serial ConnectorPin Signal Direction User’s Guide Device Attachment Cable Length DCE modemDCE host Power Connection Installation Dart 300 Modem 2110212 Rev Temperature vs. Duty Cycle Installation ConsiderationsTemperature and Auto Shutdown Minutes Time Ambient Temperature C Wire Splicing AccessPower Supply Grounding Mounting Crimp TerminalsUser’s Guide Considerations Installation Dart 300 Modem 2110212 Rev 1AT Commands in Cdpd Mode Command Description AT Commands and Status RegistersAT Command Set AT+++ AT Commands in Cdpd Mode Command Description 0xC0 References Dart 300 ModemResult Codes User’s Guide AT Command Reference AT Commands in Cdpd Mode Description OptionsOptions AT Commands in Cdpd Mode Sn=x Quiet Result Code Display OptionFraming of responses. See .3.3 for details Sn? AT Commands in Cdpd Mode Command Description AT & Commands in Cdpd Mode Description AT + Commands in Cdpd Mode Command Description +IPR=n AT + Commands in Cdpd Mode Command Description Change c.c.c.c to n.n.n.n? +WPSPNI= n,n,...n +WSn? Change c.c.c.c.q to n.n.n.n.p? Cdpd Status Registers Registers in Cdpd ModeS-Registers in Cdpd Mode Description Range Default Units Auto-answer Disabled OffWord PAD Packet Service DTE side stack WS-Registers in Cdpd ModeWS-Registers in Cdpd Mode Description Range Default Units Logic Sleep References Dart 300 Modem PAD Inter-Character Timer 174 175 User’s Guide AT Command Reference 201 209210 216 217 Important Notes and Dependencies +WS197, also setting +WS176=+WS197Result Codes in Cdpd Mode Verbose Meaning Result Codes Stored Profile Settings for Cdpd Mode References Dart 300 Modem 2110212 Rev Troubleshooting General Communication ProblemsProblem Description Suggestions General Modem Problems Error #ReferencesDART 300 Modem Warranty Registration Cdpd Network / Connectivity ProblemsWarranty User’s Guide Troubleshooting Obtaining Service Radio Specifications SpecificationsPower Specifications Power Connector Regulatory Approvals Antenna SpecificationsAntenna Specifications FCC User’s GuideSpecifications Environmental SpecificationsApplication Interface Specifications Environmental Specifications