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stellar labs DS300 User Manual

Satellite communicator
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DS300
Satellite Communicator

User Manual

May 22, 2006

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  • Page 1: User Manual

    DS300 Satellite Communicator User Manual May 22, 2006...

  • Page 2: Table Of Contents

    DS300 Users Manual May 22, 2006 Contents Introduction ..........................6 Purpose ..........................6 Applicable Documents ......................6 Industry Canada Warning: RSS210 ................. 6 General Overview........................7 General..........................7 Block Diagram........................7 Overview ..........................8 Hardware ..........................9 Power Management and Battery Charger ............... 9 3.1.1...
  • Page 3 DS300 Users Manual May 22, 2006 Installation and Operation ....................19 Quick Start .......................... 19 Environmental........................20 Regulatory..........................21 Code Loading........................22 Network Processor ........................22 Application Processor ........................22 Power Controls ........................23 8.1 Atmel ............................23 8.1.1 On............................23 8.1.2 Power Saving ........................
  • Page 4 11.1. SPI Operation ......................... 44 Over-The-Air (OTA) Parameter Message Format ............46 Appendix A: DS300 Data Sheet....................48 Appendix B: Installation of Stelcomm..................49 Appendix C: GPS Performance....................50 TTFF (Time To First Fix) -- Cold Start the GPS ............50 Cold Start First Position Fix Accuracy................
  • Page 5 DS300 Users Manual May 22, 2006 Figures Page Figure 1: DS300 Block Diagram .......................7 Figure 2: Digital Output Circuit ......................11 Figure 3: Digital Input Circuit ......................11 Figure 4: Analog Input Circuit......................11 Figure 5: Default Digital & Analog Input Timing ................15 Figure 6: Housing Dimensions and Connector Locations ............16...

  • Page 6: Introduction

    The intended audiences for this manual include, but are not limited to, the DS300 customers, current Stellar ST2500 customers and ORBCOMM customers. The purpose of this manual is to provide the user with the data necessary to install, operate, and maintain the DS300 in order to meet the user’s requirements.

  • Page 7: General Overview

    2. General Overview General The DS300 Satellite Modem is a compact, lightweight, microprocessor based VHF transceiver capable of transmitting and receiving short messages by utilizing the ORBCOMM Satellite Communication System. The ORBCOMM system is a wide area, packet switched, two-way data communication system that utilizes constellations of low-earth orbiting satellites and earth station gateways.

  • Page 8: Overview

    Note: The modem and the network processor are powered on and off as a single subsystem. The network processor controls the power mode functions of the modem. The external interfaces enable the DS300 to operate with many different types of power sources and connect to a diverse set of sensors and devices. In summary: •...

  • Page 9: Hardware

    Power Management and Battery Charger The DS300 can be powered in many different ways. This versatility enables the product to be used in a wide variety of applications without peripheral custom hardware, yielding both a cost savings and shorter development period.

  • Page 10: Charger Technical Specifications

    Drops in voltage below the normal operating range, if too long or severe to sustain normal operations, shall result in a reset of the DS300 and a return to normal operations within 50 ms following the return of the voltage to normal operating range.

  • Page 11: Digital Outputs

    DS300 Users Manual May 22, 2006 3.3.1 Digital Outputs The Atmel pins PB4 (DOUT1) through PB7 (DOUT4) are used for the four digital outputs. Series resistors serve to limit the current to a safe level in the event of ESD or if the output is externally connected to 5V (6V is the absolute maximum) or GND but driven to the opposite.

  • Page 12: Gps Receiver

    3.4.2 Antenna Interface A commercially available active GPS antenna is used in customer applications, having a gain of between 6 and 32 dB (including cable loss). At the DS300 GPS antenna port, the interface specification is as follows: • Input Impedance: 50 Ω...

  • Page 13: Application Processor Serial Interface

    • Parity Bits: odd, even, none Any change in baud rate will not take effect until the DS300 is reset (either warm or cold boot). The CD RS232 control line is activated whenever the SC has locked to an ORBCOMM satellite downlink, and has received the requisite link and network control information provided in the uplink and downlink channel information packets and the gateway information packet.

  • Page 14: Network Activity Indicators

    DC currents will flow through the case. If this is not desired, then the DS300 should be isolated from any connections to the external ground. RF ground shield connections are attached to the common board ground.

  • Page 15: Figure 5: Default Digital & Analog Input Timing

    DS300 Users Manual May 22, 2006 a satellite for an extended period, or if SC-Terminated messages are queued but the equipment user has delayed connecting for message retrieval for an extended period. Low-power sleep mode down to less than 50 uA average current draw is achieved by operating only the application processor while monitoring all digital inputs at a rate of eight times per second and all analog inputs once per second.

  • Page 16: Packaging And Connectors

    May 22, 2006 Packaging and Connectors 3.9.1 Housing The housing for the DS300 meets the specified environmental requirements, providing a sealed enclosure for the electronics. The dimensions of the DS300 are provided below. Figure 6: Housing Dimensions and Connector Locations 3.9.2...

  • Page 17: Connectors

    DS300 Users Manual May 22, 2006 3.9.4 Connectors Three connectors are located on the DS300 Communicator (GPS, VHF and Data/IO). • Two FAKRA SMB RF connectors; a rugged locking keyed connector suitable for the expected environment and installation constraints. •...

  • Page 18: Table 1: Data/Io Connector

    DS300 Users Manual May 22, 2006 Pin # Description Pin # Description External Power 1.3 Amps See Note below External Power Ground Battery Power See Note below Battery Power See Note below Battery Power Ground Battery Power Ground External Power 5 Amps (Not Connected) AT_Vref (3.3 V)

  • Page 19: Installation And Operation

    After mounting the unit, its operation can be tested by using the procedure described below. 1. Connect the Data/IO connector to the DS300. It is keyed and can only be inserted in one direction. Attach the power source and serial connections to the opposite end of the Data/IO cable.

  • Page 20: Environmental

    DS300 Users Manual May 22, 2006 5. Environmental The minimum environmental requirements for the DS300 are provided in the SC Standards & Specifications document. The requirements below reflect the needs of known applications where the DS300 is well suited functionally.

  • Page 21: Regulatory

    DS300 Users Manual May 22, 2006 6. Regulatory The DS300 shall meet the minimum requirements for regulatory approval in the United States, Canada and Europe. Stellar has received the following approvals: Type Approval Number Designation ORBCOMM 300DSC 300DSC EN 301-721...

  • Page 22: Code Loading

    DS300 Users Manual May 22, 2006 7. Code Loading Network Processor 1. The Network Processor Image can be updated through Stelcomm. 2. The latest version can be found at www.stellar-sat.com/Download 3. Stelcomm must be up/running and connected to the unit prior to uploading software.

  • Page 23: Power Controls

    DS300 Users Manual May 22, 2006 Power Controls 8.1 Atmel 8.1.1 On All subsystems are powered and available. 8.1.2 Power Saving Wake up on Main and Aux serial port communication, digital IO, internal timer. This will utilize the Atmel Power Save mode. The unit will wake up 8 times each second to check all IO lines. The unit will also power up when there is activity on the main or aux serial ports.

  • Page 24: Table 3: Power Down States

    DS300 Users Manual May 22, 2006 Atmel v850 BO #1 BO #2 Sleep Standby Table 3: Power Down States Stellar Document – Version 2.1c Page: 24 of 51 21700 Atlantic Blvd • Dulles • Virginia 20166 • Telephone: (703) 433-6550 • Fax: (703) 433-6500...

  • Page 25: Stellar Extended Packet Descriptions

    DS300 Users Manual May 22, 2006 9. Stellar Extended Packet Descriptions The serial interface utilizes the ORBCOMM Serial Interface Specification (E80050015-Rev F) and the Stellar Extended Serial packet types defined in this section. The Stellar Extended Serial packets allow the user to: •...

  • Page 26: Little Endian Format

    DS300 Users Manual May 22, 2006 Little Endian format Little Endian indicates that the least significant bytes occur before the most significant bytes. In a two byte integer or short integer, the first byte is the least significant byte and the second byte is the most significant byte.
  • Page 27 DS300 Users Manual May 22, 2006 Data Opcode Offset Description Data Range Format DSP Version/software ID ASCII ASCII float(4 RF frequency bytes) float(4 Eb/No 0.00 - 20.00 bytes) NP Version/software ID ASCII Board Version or Manufacturer ASCII number long (4...
  • Page 28 DS300 Users Manual May 22, 2006 Position Report Application char Both 1=on, 0=off Debug Setting (1byte) float(4 Battery Voltage 0-16 volts bytes) float(4 External Power Voltage 0-36 volts bytes) float(4 Ambient Case Temperature -40 to 100 celcius bytes) float(4 Battery Charger Temperature...
  • Page 29 DS300 Users Manual May 22, 2006 bytes) long(4 Digital IO Counter 9 0-4,294,967,295 bytes) long(4 Digital IO Counter10 0-4,294,967,295 bytes) long(4 Digital IO Counter 11 0-4,294,967,295 bytes) char Digital IO Counter 0 Mode Both Byte 0 =counter mode (1byte) char...
  • Page 30 DS300 Users Manual May 22, 2006 char PDOP Limit (PEXT) 0-99 (1byte) char HDOP Limit (PEXT) 0-99 (1byte) float(4 Latitude (GGA) bytes) float(4 Longitude (GGA) bytes) 24 bit integer representing the long(4 UTC Time (GGA) number of seconds since UTC...

  • Page 31: Table 4: Opcodes And Offsets

    DS300 Users Manual May 22, 2006 short(2 Software Version 0-65535 bytes) Battery Charger ASCII text Battery Charger App Version 6 bytes ASCII (Max 80 Number bytes) maximum battery voltage in float(4 Both cyclic mode bytes) maximum battery voltage in float...

  • Page 32: Get Configuration (0X21, 0X41)

    DS300 Users Manual May 22, 2006 Get Configuration (0x21, 0x41) 7 6 5 4 3 2 1 0 0x86 Packet header byte 0x21/0x41 Packet type Length byte 0 Packet length starting with byte 0, includes checksum Length byte 1 Seq Num...

  • Page 33: Configuration Response (0X22)

    DS300 Users Manual May 22, 2006 Configuration Response (0x22) 7 6 5 4 3 2 1 0 0x06 Packet header byte 0x22 Packet type Length byte 0 Packet length starting with byte 0, includes Length byte 1 checksum Seq Num...

  • Page 34: Sc Originated Messages List (0X23)

    DS300 Users Manual May 22, 2006 SC Originated Messages List (0x23) 7 6 5 4 3 2 1 0 0x06 Packet header byte 0x23 Packet type Length byte 0 Packet length starting with byte 0, includes checksum Length byte 1...

  • Page 35: Figure 10: Sc Originated Message Summary (For Sc Originated Message List Packet)

    DS300 Users Manual May 22, 2006 Byte Name Description Type of message GG, MSG, Rep, PosRep, etc. (values TBD) Transfer State 1 = in session; 0 = idle Percent of Transfer 0 - 99 Length byte 0 Length byte 1...

  • Page 36: Sc Originated Message Summary (0X29)

    DS300 Users Manual May 22, 2006 SC Originated Message Summary (0x29) 7 6 5 4 3 2 1 0 0x06 Packet header byte 0x29 Packet type Length byte 0 Packet length starting with byte 0, includes Length byte 1 checksum...

  • Page 37: Sc Terminated Messages List (0X24)

    DS300 Users Manual May 22, 2006 SC Terminated Messages List (0x24) 7 6 5 4 3 2 1 0 0x06 Packet header byte 0x24 Packet type Length byte 0 Packet length starting with byte 0, includes checksum Length byte 1...

  • Page 38: Figure 11: Sc Terminated Message Summary (For Sc Terminated Message List Packet)

    DS300 Users Manual May 22, 2006 Byte Name Description 1=message, 2=user command, 3=datagram, Type of message 4=serial simulation command Length byte 0 Length byte 1 Private Mode 6=broadcast, 7=group, 8=private Speed_Dial_1 0 = loop back, 1-7 = as register, 255=none...

  • Page 39: Sc Terminated Message Summary (0X28)

    DS300 Users Manual May 22, 2006 SC Terminated Message Summary (0x28) 7 6 5 4 3 2 1 0 0x06 Packet header byte 0x28 Packet type Length byte 0 Packet length starting with byte 0, includes checksum Length byte 1...

  • Page 40: Message Queue Command (0X25)

    DS300 Users Manual May 22, 2006 Message Queue Command (0x25) 7 6 5 4 3 2 1 0 0x86 Packet header byte 0x25 Packet type Length byte 0 Packet length starting with byte 0, includes Length byte 1 checksum Seq Num...

  • Page 41: Table 5: Message Queue Command Type Codes

    DS300 Users Manual May 22, 2006 Type Data Definition Value Desired Response Code type Arrival week & time bytes. (Matches Link Level ACk then Retrieve an SC-T from arrival time in SC-T message 5 bytes SC-T Packet. (0x0C, SC-T queue...

  • Page 42: Debug Text (0X26)

    DS300 Users Manual May 22, 2006 Debug Text (0x26) 7 6 5 4 3 2 1 0 Packet header byte 0x06 0x26 Packet type Length byte 0 Length byte 1 Packet length starting with byte 0, includes checksum Seq Num...

  • Page 43: Message Sequence Charts

    DS300 Users Manual May 22, 2006 10. Message Sequence Charts 10.1. Set Configuration Message Sequence Chart DS100 Set Configuration Packet Configuration Response Packet Link Level Ack 10.2. Get Configuration Message Sequence Chart DS100 Get Configuration Packet Configuration Response Packet Link Level Ack Stellar Document –...

  • Page 44: Spi Serial

    DS300 Users Manual May 22, 2006 11. SPI Serial **Will be available in future software release** The SPI serial interface adheres to the ORBCOMM Serial Interface protocol and Stellar extensions using standard TTL voltage levels. Serial data is carried on the Transmit (TX) and Receive (RX) lines, synchronized to a clock signal (CLK) provided by the Network Processor.
  • Page 45 DS300 Users Manual May 22, 2006 The overall configuration of the SPI Link is as follows: • Network Processor Configured as Master • application processor Configured as Slave • Data Order: LSB first • Leading Edge: Sampling(Falling) Atmel API mode 2 •...

  • Page 46: Over-The-Air (Ota) Parameter Message Format

    DS300 Users Manual May 22, 2006 12. Over-The-Air (OTA) Parameter Message Format Stellar over-the-air commands are SC-T messages sent to a Stellar SC in text format with the OTA commands in the body of the message. The command ends with a colon. If a password is used it is placed between the command and the colon.
  • Page 47 DS300 Users Manual May 22, 2006 Examples: 1. With a password of ‘pas’ : SC-T Message: $CSNDpas:101,32; SC-O reply Message: CSND:101,32=7; 2. With no password: SC-T Message: $CSND:101,32;109,40;0,1; SC-O reply Message: CSND:101,32=7;109,40=3;0,1=120; 3. With omitted offset (offset omitted for 156 & 128. offset assumed to be 0 when not present): SC-T Message: $CSNDpas:156;109,40;0,1;...

  • Page 48: Appendix A: Ds300 Data Sheet

    DS300 Users Manual May 22, 2006 Appendix A: DS300 Data Sheet General Dimension: 206 x 86 x 38 mm (maximum) Configuration: Sealed Case Transmit Power 10 Watts EIRP Receive Frequency 137 to 138 MHz Dynamic Range 40 dB minimum Sensitivity...

  • Page 49: Appendix B: Installation Of Stelcomm

    1. Stelcomm can be downloaded from the following link: www.stellar-sat.com/Download 2. Under the Tools section, select the Stelcomm Version 3.X.XXX .XXXX (DS100 and DS300 Users Only) interface will be listed. 3. The hyper link (click here) will download the files in a compressed format (zip).

  • Page 50: Appendix C: Gps Performance

    DS300 Users Manual May 22, 2006 Appendix C: GPS Performance TTFF (Time To First Fix) -- Cold Start the GPS Four conditions have been tested for TTFF cold start, namely: (1) Cold start without any info (on graph: WO_info) (2) Cold start with estimated long/lat preloaded (on graph: w_loc)

  • Page 51: Stellar Document - Version 2.1C

    DS300 Users Manual May 22, 2006 Power Consumption The operating power consumption spec for Orbcomm program is 180mW typical and 200mW max. Power consumption is the same both in seeking and fix mode, the consumption is < 250mW (240mW) with 3.3V main supply.

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