Cable Length, DCE modem, DCE host | Sierra Wireless DART 300

Installation

DART 300 Modem

Two sample connections are shown below. Determine the control signal capabilities and requirements for the local host device and construct the required cabling. Both ends of the cable should use male connectors as DCE devices use a female connector on the unit.

DCE (modem)

1DCD

2RxD

3TxD

4DTR

5GND

6DSR

7RTS

8CTS

9RI

Not Connected

Not Connected

DCE (host)

1DCD

2RxD

3TxD

4DTR

5GND

6DSR

7RTS

8CTS

9RI

Figure 10-2: Full Function Null-Modem.

DCE (modem)

1DCD

2RxD

3TxD

4DTR

5GND

6DSR

7RTS

8CTS

9RI

Not Connected

Not Connected Not Connected

DCE (host)

1DCD

2RxD

3TxD

4DTR

5GND

6DSR

7RTS

8CTS

9RI

Figure 10-3: Minimum Connection Null-Modem (without flow control).

10.3.2.Cable Length

Standard RS-232C communications cables function properly for distances up to 50 feet, provided the driver circuits meet RS-232C voltage specifications. If longer lengths are required, low loss RS-232 cable or electronic cable extenders can be used; both are available from local cable distributors or electronic catalogs.

Page 90

2110212 Rev 1.0

Image 101

Sierra Wireless DART 300 manual Cable Length, DCE modem, DCE host

Contents

2110212 Rev November Sierra Wireless Dart 300 Cdpd Modem Important Notice Safety and HazardsPatents Copyright 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 AT Commands and Status Registers Installation ConsiderationsReferences 119 Specifications 123 About this Guide How to ProceedIntroduction Focus List Book 3 Configuration and Use Book 2 Feature ReferenceDocument Structure Introduction Dart 300 Modem Book 4 Installation Dart 300 ChecklistUser’s Guide About This Guide Book 5 References Currency ReferencesConventions Used in this Reference Dart 300 / SB300 Dart Introduction Dart 300 Modem 2110212 Rev Typical System View System Overview Network Connection Field Central Monitor Project StagesClient / Server Stage 1 Application Planning Stage 4 Rollout Stage 2 Bench Integration and TestingStage 3 Field Installation and Testing Getting Started Service Activation Set-up Considerations Power SupplyAntenna Serial Cable 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 States Command to Data StateConditions Sessions Details Data to Command StateUser’s Guide Local DTE/DCE Interface Modem Buffers Command BufferData Buffers Speed Buffering General Notes AT Command Handling and DefaultsParameters Responses and Results Returned by the Modem Responses FramingFraming Characters Result Codes For Commands without a ResponseResponse Framing Echo Verbose Quiet Result Framing No Response Echo Verbose Quiet Registers For Commands with a ResponsePossible Result Codes Result Framing After Response Echo Verbose Quiet Interface Settings RS-232C Interface and Control SignalsFixed Rate Setting +IPR Flow Control Data Terminal Ready DTR Control SignalsDTR Flow Control Data Set Ready DSR Ring Indicator RIRequest to Send RTS Clear to Send CTS 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 User’s Guide Protocols and Packet Assembly Features UDP Server FeaturesAnswering UDP Server Sessions UDP Server Receive Lock Disabling the UDP Server Closing UDP Sessions UDP Client Features UDP Broadcast and Multicast Configuration and UseBroadcast Multicast Transmission Control Protocol TCP TCP Server FeaturesTCP Handshaking Answering TCP Server Sessions Disabling the TCP Server TCP Client FeaturesClosing a TCP Session Point-to-Point Protocol PPP TCP and Sleep ModeSerial Line Interface Protocol Slip Assembling a Packet Packet Assembly ManagementForwarding a Packet Local Echo Time Dependent Escape Sequence Tdes Escaping Data State Escape Character Important RelationshipsGuard Time Time Independent Escape Sequence Ties Data and Telemetry Considerations PAD Session TimeoutDTR Transition TCP Remote Disconnect 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 Side Preference User’s Guide Advanced FeaturesSpni Matching Assign a Channel Disable Spni Matching Spni Table ConfigurationEnable Spni Matching Determining Channel Acquisition Status 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 Save Configuration Using UDP/TCP ServiceServer Sessions Server Initialization UDP Server Sessions Using an Open UDP SessionOpening a UDP Server Session Receiving Data Transmitting Data TCP Server SessionsClosing UDP Server Sessions Opening a TCP Server Session Using an Open TCP Session Closing TCP Server Sessions Client SessionsNo Carrier result UDP Client Connection TCP Client Connection By +WS198 Closing a Client Session Using a Client Session Case 1 Semi-intelligent RTU Sample UDP/TCP ConfigurationsCabling DCE male Modem Configuration +IPR=9600 Case 2 Dumb MeterProtocol Considerations +WS179=0 Sample Configuration Meter Command Remarks +WPNEI= ip+WS212=0 +WS213=1 Using This Configuration Configuration and Use Dart 300 Modem 2110212 Rev Configuring Slip Service SLIP/PPP Service Configuration and Use Dart 300 Modem Transmitting Using Slip ServiceReceiving Escaping Data State Using DTR to Escape Configuring PPP ServicePoint to Point Protocol PPP Closing a Slip Session 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 Pin Signal Direction Serial ConnectorNull-Modem Connection User’s Guide Device Attachment DCE host Cable LengthDCE modem Power Connection Installation Dart 300 Modem 2110212 Rev Temperature and Auto Shutdown Installation ConsiderationsTemperature vs. Duty Cycle Minutes Time Ambient Temperature C Power Supply AccessWire Splicing Grounding User’s Guide Considerations MountingCrimp Terminals Installation Dart 300 Modem 2110212 Rev AT Command Set AT Commands and Status Registers1AT Commands in Cdpd Mode Command Description AT+++ 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 Framing of responses. See .3.3 for details Quiet Result Code Display OptionSn=x Sn? 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? S-Registers in Cdpd Mode Description Range Default Units Registers in Cdpd ModeCdpd Status Registers Auto-answer Word DisabledOff WS-Registers in Cdpd Mode Description Range Default Units WS-Registers in Cdpd ModePAD Packet Service DTE side stack Logic Sleep References Dart 300 Modem PAD Inter-Character Timer 175 174 User’s Guide AT Command Reference 210 201209 217 216 Result Codes in Cdpd Mode Verbose Meaning +WS197, also setting +WS176=+WS197Important Notes and Dependencies Result Codes Stored Profile Settings for Cdpd Mode References Dart 300 Modem 2110212 Rev Problem Description Suggestions TroubleshootingGeneral Communication Problems ReferencesDART 300 Modem General Modem ProblemsError # Warranty Cdpd Network / Connectivity ProblemsWarranty Registration User’s Guide Troubleshooting Obtaining Service Power Specifications SpecificationsRadio Specifications Power Connector Antenna Specifications Antenna SpecificationsRegulatory Approvals FCC Application Interface Specifications Environmental SpecificationsUser’s GuideSpecifications Environmental Specifications